Catherine ESPECEL

105

Documents

Publications

	Liquid-phase sorbitol hydrogenolysis over Co catalysts: Effect of external vs endogenous H2 on the product distribution Alberto J. Reynoso , José Luis Ayastuy , Unai Iriarte-Velasco , Laurence Vivier , Catherine Especel Fuel, 2024, 357, pp.129984. ⟨10.1016/j.fuel.2023.129984⟩ Journal articles hal-04453576v1
	DFT Atomic‐Scale Insight into Pt/Cu Single Atom Alloy Clusters Supported on γ‐Al₂O₃: The Effect of Hydrogen Environment Masoud Shahrokhi , Tzonka Mineva , Abdennour Benabbas , Catherine Especel , Anthony Le Valant ChemCatChem, 2024, 16 (18), pp.e202400565. ⟨10.1002/cctc.202400565⟩ Journal articles hal-04709972v1
	Catalytic Dehydrogenation on Ultradisperse Sn-Promoted Ir Catalysts Supported on MgAl2O4 Prepared by Different Techniques Sergio de Miguel , Jayson Fals , Viviana Benitez , Catherine Especel , Florence Epron Processes, 2024, 12 (6), pp.1161. ⟨10.3390/pr12061161⟩ Journal articles hal-04627105v1
	Designing CuO–SiO2 and Cu0–SiO2 Monolithic Ceramics Bearing Hierarchical Porosity Toward Robust and Cycling CO Oxidation Properties Antoine Vardon , Hugo Labarrère , Frédéric Nallet , Nicolas Chanut , François Weill Chemistry of Materials, 2023, 35 (1), pp.228-241. ⟨10.1021/acs.chemmater.2c03022⟩ Journal articles hal-03927115v1
	Bimetallic Catalysts For Sustainable Chemistry: Surface Redox Reactions For Tuning The Catalytic Surface Composition Catherine Especel , Gwendoline Lafaye , Florence Epron ChemCatChem, 2022, 15 (3), ⟨10.1002/cctc.202201478⟩ Journal articles hal-03907967v1
	Binary CoOx–SiO₂ Porous Nanostructures for Catalytic CO Oxidation Isabelle Ly , Antoine Vardon , Nicolas Chanut , Frédéric Nallet , Roland Pellenq ACS Applied Nano Materials, 2022, 5 (5), pp.7331-7343. ⟨10.1021/acsanm.2c01258⟩ Journal articles hal-03920223v2
	Effect of potassium and platinum contents on catalytic performance of Pt/Al2O3 monometallic catalysts for propane dehydrogenation Alexandre van Assche , Catherine Especel , Anthony Le Valant , Florence Epron Molecular Catalysis, 2021, 517, pp.112059. ⟨10.1016/j.mcat.2021.112059⟩ Journal articles hal-03495757v1
	Influence of the Ir content and the support on the thiotolerance of the Ir/SiO2-Al2O3 catalysts used in selective ring opening of decalin Silvana d'Ippolito , Adriana Ballarini , Santiago Rosas , Laurence Pirault-Roy , Catherine Especel Canadian Journal of Chemical Engineering, 2021, 99 (5), pp.1146-1157. ⟨10.1002/cjce.23930⟩ Journal articles hal-03003138v1
	Description of supported metal structure sensitivity by a geometric approach Anthony Le Valant , Samuel Bouchet , Alexandre van Assche , Catherine Especel , Florence Epron Journal of Catalysis, 2021, ⟨10.1016/j.jcat.2021.03.021⟩ Journal articles hal-03219223v1
	Characterization by X-ray absorption spectroscopy of bimetallic Re-Pd/ TiO 2 catalysts efficient for selective aqueous-phase hydrogenation of succinic acid to 1,4-butanediol Benoit Tapin , Bao-Khanh Ly , Christine Canaff , Florence Epron , C. Pinel Materials Chemistry and Physics, 2020, 252, pp.123225. ⟨10.1016/j.matchemphys.2020.123225⟩ Journal articles hal-02903440v1
	Tracking the paths for the sucrose transformations over bifunctional Ru-POM/AC catalysts N. García-Bosch , Catherine Especel , A. Guerrero Ruiz , I. Rodríguez-Ramos Catalysis Today, 2020, 357, pp.113-121. ⟨10.1016/j.cattod.2019.05.052⟩ Journal articles hal-03003971v1
	Ru-Sn-B/TiO 2 catalysts for methyl oleate selective hydrogenation. Influence of the preparation method and the chlorine content María Sánchez , Vanina Mazzieri , Stéphane Pronier , María Vicerich , Catherine Especel Journal of Chemical Technology and Biotechnology, 2019, 94 (3), pp.982-991. ⟨10.1002/jctb.5849⟩ Journal articles hal-02109660v1
	Ru‐Pt catalysts supported on Al2O3 and SiO2─Al2O3 for the selective ring opening of naphthenes María Vicerich , Viviana Benitez , María Sánchez , Catherine Especel , Florence Epron Canadian Journal of Chemical Engineering, 2019, 98 (3), pp.749-756. ⟨10.1002/cjce.23656⟩ Journal articles hal-02368208v1
	Supported Co-Re Bimetallic Catalysts with Different Structures as Efficient Catalysts for Hydrogenation of Citral Xin Di , Gwendoline Lafaye , Catherine Especel , Florence Epron , Ji Qi ChemSusChem, 2019, 12 (4), pp.807-823. ⟨10.1002/cssc.201802744⟩ Journal articles hal-02109652v1
	Biofuel Synthesis from Sorbitol by Aqueous Phase Hydrodeoxygenation over Bifunctional Catalysts: In-depth Study of the Ru–Pt/SiO2–Al2O3 Catalytic System Davina Messou , Laurence Vivier , Christine Canaff , Catherine Especel Catalysts, 2019, 9 (2), pp.146. ⟨10.3390/catal9020146⟩ Journal articles hal-03003969v1
	In situ preparation of bimetallic ReOx-Pd/TiO2 catalysts for selective aqueous-phase hydrogenation of succinic acid to 1,4-butanediol Bao Khanh Ly , Benoit Tapin , Florence Epron , Catherine Pinel , Catherine Especel Catalysis Today, 2019, 355, pp.75-83. ⟨10.1016/j.cattod.2019.03.024⟩ Journal articles hal-02177458v1
	Effect of the metallic particle size of supported Pt catalysts on methylcyclopentane hydrogenolysis: Understanding of the ring opening products distribution by a geometric approach Anthony Le Valant , Fabien Drault , Corentin Maleix , Clément Comminges , Romain Beauchet Journal of Catalysis, 2018, 367, pp.234-243. ⟨10.1016/j.jcat.2018.09.016⟩ Journal articles hal-02109667v1
	One-step Modification of Active Sites and Support in Ni/Al 2 O 3 Catalyst for Hydrodeoxygenation of Lignin-derived Diphenyl Ether Kaixuan Yang , Xiao Chen , Gwendoline Lafaye , Catherine Especel , Florence Epron ChemistrySelect, 2018, 3 (41), pp.11398-11405. ⟨10.1002/slct.201802490⟩ Journal articles hal-02109662v1
	Sorbitol transformation into biofuels over bimetallic platinum based catalysts supported on SiO2-Al2O3 – Effect of the nature of the second metal Davina Messou , Laurence Vivier , Catherine Especel Fuel Processing Technology, 2018, 177, pp.159-169. ⟨10.1016/j.fuproc.2018.04.030⟩ Journal articles hal-03003967v1
	Selective ring opening of decalin on Rh-Pd/SiO2-Al2O3 bifunctional systems: Catalytic performance and deactivation Silvana d'Ippolito , Laurence Pirault-Roy , Catherine Especel , Florence Epron , Carlos Pieck Fuel Processing Technology, 2018, 177, pp.6-15. ⟨10.1016/j.fuproc.2018.04.008⟩ Journal articles hal-02109691v1
	Influence of Re–M interactions in Re–M/C bimetallic catalysts prepared by a microwave-assisted thermolytic method on aqueous-phase hydrogenation of succinic acid Xin Di , Chuang Li , Gwendoline Lafaye , Catherine Especel , Florence Epron Catalysis Science & Technology, 2017, 7 (22), pp.5212-5223. ⟨10.1039/C7CY01039G⟩ Journal articles hal-02109700v1
	Influence of rhodium content on the behavior of Rh/SiO 2 –Al 2 O 3 catalysts for selective ring opening of decalin Silvana d'Ippolito , Laurence Pirault-Roy , Catherine Especel , Florence Epron , Carlos Pieck RSC Advances, 2017, 7 (74), pp.46803-46811. ⟨10.1039/C7RA08350E⟩ Journal articles hal-02109701v1
	Controlled preparation and characterization of Pt-Rh/Al2O3 bimetallic catalysts for reactions in reducing conditions Nelly Herault , Lilian Olivet , Laurence Pirault-Roy , Catherine Especel , Maria A. Vicerich Applied Catalysis A : General, 2016, 517, pp.81-90. ⟨10.1016/j.apcata.2016.02.024⟩ Journal articles hal-01342597v1
	Sorbitol transformation over bimetallic Ru-Pt/SiO2-Al2O3 catalysts: Effect of the preparation method Davina Messou , Laurence Vivier , Catherine Especel Energy Conversion and Management, 2016, 127, pp.55-65. ⟨10.1016/j.enconman.2016.08.095⟩ Journal articles hal-03003959v1
	Catalytic oxidation of n -butanol over platinum supported mesoporous silica CMI-1 Smaïn Sabour , Catherine Especel , Céline Fontaine , Mourad Bidaoui , Lakhdar Benatallah Journal of Molecular Catalysis A: Chemical, 2016, 420, pp.50-55. ⟨10.1016/j.molcata.2016.04.006⟩ Journal articles hal-03003962v1
	Toward the improvement in unsaturated alcohol selectivity during α,β-unsaturated aldehyde selective hydrogenation, using Zn as promoter of Pt Mourad Bidaoui , Catherine Especel , Smain Sabour , Lakhdar Benatallah , Naima Saib-Bouchenafa Journal of Molecular Catalysis A: Chemical, 2015, 399, pp.97-105. ⟨10.1016/j.molcata.2015.01.010⟩ Journal articles hal-03003953v1
	Selective ring opening of methylcyclohexane and decalin over Rh-Pd supported catalysts: Effect of the preparation method Silvana A. d'Ippolito , Catherine Especel , Florence Epron , Carlos L. Pieck Fuel Processing Technology, 2015, 140, pp.180-187. ⟨10.1016/j.fuproc.2015.08.027⟩ Journal articles hal-01342287v1
	Influence of the support on the selective ring opening of methylcyclohexane and decalin catalyzed by Rh-Pd catalysts Silvana A. d'Ippolito , Catherine Especel , Laurence Vivier , Stéphane Pronier , Florence Epron Journal of Molecular Catalysis A: Chemical, 2015, 398, pp.203-214. ⟨10.1016/j.molcata.2014.12.011⟩ Journal articles hal-01332862v1
	Insights into the Oxidation State and Location of Rhenium in Re-Pd/TiO2 Catalysts for Aqueous-Phase Selective Hydrogenation of Succinic Acid to 1,4-Butanediol as a Function of Palladium and Rhenium Deposition Methods Bao-Khanh Ly , Benoit Tapin , Mimoune Aouine , Pierre Delichère , Florence Epron ChemCatChem, 2015, 7 (14), pp.2161-2178. ⟨10.1002/cctc.201500197⟩ Journal articles hal-01358352v1
	Hydrocarbon fuel synthesis from sorbitol over bifunctional catalysts: Association of tungstated titania with platinum, palladium or iridium Lea Vilcocq , Amandine Cabiac , Catherine Especel , Sylvie Lacombe , Daniel Duprez Catalysis Today, 2015, 242, pp.91 - 100. ⟨10.1016/j.cattod.2014.06.014⟩ Journal articles hal-01108073v1
	New insights into the mechanism of sorbitol transformation over an original bifunctional catalytic system. Lea Vilcocq , Amandine Cabiac , Catherine Especel , Sylvie Lacombe , Daniel Duprez Journal of Catalysis, 2014, 320, pp.16-25. ⟨10.1016/j.jcat.2014.09.012⟩ Journal articles hal-01138563v1
	Polyol hydrogenolysis on supported Pt catalysts: Comparison between glycerol and 1,2-propanediol Severine Delgado , Laurence Vivier , Catherine Especel Catalysis Communications, 2014, 43, pp.107-111. ⟨10.1016/j.catcom.2013.09.021⟩ Journal articles hal-01193126v1
	New bifunctional catalytic systems for sorbitol transformation into biofuels Lea Vilcocq , Regis Koerin , Amandine Cabiac , Catherine Especel , Sylvie Lacombe Applied Catalysis B: Environmental, 2014, 148, pp.499-508. ⟨10.1016/j.apcatb.2013.11.016⟩ Journal articles hal-01198896v1
	Bimetallic catalysts for hydrogenation in liquid phase Catherine Especel , Daniel Duprez , Florence Epron Comptes Rendus. Chimie, 2014, 17 (7-8), pp.790-800. ⟨10.1016/j.crci.2013.12.009⟩ Journal articles hal-02109778v1
	Influence of the Brønsted acidity, SiO2/Al2O3 ratio and Rh-Pd content on the ring opening: Part I. Selective ring opening of decalin S.A. d'Ippolito , Catherine Especel , L. Vivier , Florence Epron , C.L. Pieck Applied Catalysis A : General, 2014, 469, pp.532-540. ⟨10.1016/j.apcata.2013.06.057⟩ Journal articles hal-00965781v1
	Influence of the Re introduction method onto Pd/TiO2 catalysts for the selective hydrogenation of succinic acid in aqueous-phase B. Tapin , Florence Epron , Catherine Especel , B. K. Ly , C. Pinel Catalysis Today, 2014, 235, pp.127-133. ⟨10.1016/j.cattod.2014.02.018⟩ Journal articles hal-01073458v1
	Influence of the Brønsted acidity, SiO2/Al2O3 ratio and Rh-Pd content on the ring opening. Part II. Selective ring opening of methylcyclohexane S.A. d'Ippolito , Catherine Especel , L. Vivier , Florence Epron , C.L. Pieck Applied Catalysis A : General, 2014, 469, pp.541-549. ⟨10.1016/j.apcata.2013.06.009⟩ Journal articles hal-00966356v1
	Study of Monometallic Pd/TiO2 Catalysts for the Hydrogenation of Succinic Acid in Aqueous Phase B. Tapin , Florence Epron , Catherine Especel , B.K. Ly , C. Pinel ACS Catalysis, 2013, 3 (10), pp.2327-2335. ⟨10.1021/cs400534x⟩ Journal articles hal-00942804v1
	Influence of chlorine on the catalytic properties of supported rhodium, iridium and platinum in ring opening of naphthenes P. Samoila , Florence Epron , P. Marecot , C. Especel Applied Catalysis A : General, 2013, 462-463, pp.207-219. ⟨10.1016/j.apcata.2013.05.009⟩ Journal articles hal-00942773v1
	Study of Monometallic Pd/TiO2 Catalysts for the Hydrogenation of Succinic Acid in Aqueous Phase B. Tapin , F. Epron , C. Especel , B. K. Ly , C. Pinel ACS Catalysis, 2013, 3, pp.2327-2335. ⟨10.1021/cs400534x⟩ Journal articles hal-00912606v1
	Heterogeneous Catalytic Hydrogenation of Biobased Levulinic and Succinic Acids in Aqueous Solutions L. Corbel-Demailly , B. K. Ly , D. P. Minh , B. Tapin , C. Especel ChemSusChem, 2013, 6, pp.2388-2395. ⟨10.1002/cssc.201300608⟩ Journal articles hal-00941355v1
	Influence of the nature of the support on the catalytic properties of Pt-based catalysts for hydrogenolysis of glycerol S. Noe Delgado , D. Yap , C. Vivier , C. Especel Journal of Molecular Catalysis A: Chemical, 2013, 367, pp.89-98. ⟨10.1016/j.molcata.2012.11.001⟩ Journal articles hal-00939235v1
	Influence of iridium content on the behavior of Pt-Ir/Al2O3 and Pt-Ir/TiO2 catalysts for selective ring opening of naphthenes M.A. Vicerich , V.M. Benitez , Catherine Especel , Florence Epron , C.L. Pieck Applied Catalysis A : General, 2013, 453, pp.167-174. ⟨10.1016/j.apcata.2012.12.015⟩ Journal articles hal-00944377v1
	Heterogeneous Catalytic Hydrogenation of Biobased Levulinic and Succinic Acids in Aqueous Solutions Louis Corbel-Demailly , Bao-Khanh Ly , Doan Pham Minh , Benoit Tapin , Catherine Especel ChemSusChem, 2013, 6 (12), pp.2388-2395. ⟨10.1002/cssc.201300608⟩ Journal articles hal-02109788v1
	Corrigendum: Heterogeneous Catalytic Hydrogenation of Biobased Levulinic and Succinic Acids in Aqueous Solutions Louis Corbel-Demailly , Bao-Khanh Ly , Doan Pham Minh , Benoit Tapin , Catherine Especel ChemSusChem, 2013, 6 (12), pp.2210-2212. ⟨10.1002/cssc.201300904⟩ Journal articles hal-02109787v1
	Transformation of Sorbitol to Biofuels by Heterogeneous Catalysis: Chemical and Industrial Considerations Lea Vilcocq , A. Cabiac , C. Especel , E. Guillon , D. Duprez Oil & Gas Science and Technology - Revue d'IFP Energies nouvelles, 2013, 68 (5), pp.841-860. ⟨10.2516/ogst/2012073⟩ Journal articles hal-01936220v1
	Effect of Addition Mode of Re in Bimetallic Pd–Re/TiO2 Catalysts Upon the Selective Aqueous-Phase Hydrogenation of Succinic Acid to 1,4-Butanediol Bao Khanh Ly , Doan Pham Minh , Catherine Pinel , Michèle Besson , Benoit Tapin Topics in Catalysis, 2012, 55 (7-10), pp.466-473. ⟨10.1007/s11244-012-9813-3⟩ Journal articles hal-02109807v1
	Effect of Addition Mode of Re in Bimetallic Pd-Re/TiO2 Catalysts Upon the Selective Aqueous-Phase Hydrogenation of Succinic Acid to 1,4-Butanediol B. K. Ly , D. P. Minh , C. Pinel , M. Besson , B. Tapin Topics in Catalysis, 2012, 55, pp.466-473. ⟨10.1007/s11244-012-9813-3⟩ Journal articles hal-00741018v1
	Selective hydrogenation of citral to unsaturated alcohols over mesoporous Pt/Ti-Al2O3 catalysts. Effect of the reduction temperature and of the Ge addition Tchirioua Ekou , Aurelien Flura , Lynda Ekou , Catherine Especel , Sebastien Royer Journal of Molecular Catalysis A: Chemical, 2012, 353, pp.148-155. ⟨10.1016/j.molcata.2011.11.018⟩ Journal articles hal-00683378v1
	Citral hydrogenation on high surface area mesoporous TiO2-SiO2 supported Pt nanocomposites: Effect of titanium loading and reduction temperature on the catalytic performances M. Bidaoui , Catherine Especel , N. Bouchenafa-Saib , D. Duprez , O. Mohammedi Applied Catalysis A : General, 2012, 445, pp.14-25. ⟨10.1016/j.apcata.2012.07.023⟩ Journal articles hal-00805641v1
	Supported Pt-Rh bimetallic catalysts as efficient systems for methylcyclohexane ring opening P. Samoila , M. Boutzeloit , I. Salem , D. Uzio , G. Mabilon Applied Catalysis A : General, 2012, 415, pp.80-88. ⟨10.1016/j.apcata.2011.12.003⟩ Journal articles hal-00682905v1
	Sorbitol transformation in aqueous medium: Influence of metal/acid balance on reaction selectivity Lea Vilcocq , A. Cabiac , C. Especel , S. Lacombe , D. Duprez Catalysis Today, 2012, 189 (1), pp.117-122. ⟨10.1016/j.cattod.2012.03.051⟩ Journal articles hal-00834257v1
	Catalytic performances of large pore Ti-SBA15 supported Pt nanocomposites for the citral hydrogenation reaction Tchirioua Ekou , Catherine Especel , Sebastien Royer Catalysis Today, 2011, 173, pp.44-52. ⟨10.1016/j.cattod.2011.05.016⟩ Journal articles hal-01342637v1
	Study of the stability of Pt/SiO2-Al2O3 catalysts in aqueous medium: Application for sorbitol transformation Lea Vilcocq , Cabiac A. , C. Especel , S. Lacombe , D. Duprez Catalysis Communications, 2011, 15, pp.18-22. ⟨10.1016/j.catcom.2011.08.002⟩ Journal articles hal-01342616v1
	Citral hydrogenation over Rh and Pt catalysts supported on TiO2: Influence of the preparation and activation protocols of the catalysts Tchirioua Ekou , Lynda Ekou , Aurélie Vicente , Gwendoline Lafaye , Stéphane Pronier Journal of Molecular Catalysis A: Chemical, 2011, 337 pp.82-88. ⟨10.1016/j.molcata.2011.01.020⟩ Journal articles hal-01342641v1
	Influence of gallium on the properties of Pt-Re/Al2O3 naphtha reforming catalysts Maria A. Vicerich , Catherine Especel , Viviana M. Benitez , Florence Epron , Carlos L. Pieck Applied Catalysis A : General, 2011, 407 (1-2), pp.49-55. ⟨10.1016/j.apcata.2011.08.022⟩ Journal articles hal-01342605v1
	The relationship between the structural properties of bimetallic Pd-Sn/SiO2 catalysts and their performance for selective citral hydrogenation Aurélie Vicente , Gwendoline Lafaye , Catherine Especel , Patrice Marecot , Christopher T. Williams Journal of Catalysis, 2011, 283, pp.133-142. ⟨10.1016/j.jcat.2011.07.010⟩ Journal articles hal-01342624v1
	O-2 and O-3 regeneration of PtReSn/Al2O3 and PtReGe/Al2O3 naphtha reforming catalysts prepared by catalytic reduction Silvana A. d'Ippolito , Catherine Especel , Florence Epron , Patrice Marecot , Carlos L. Pieck Applied Catalysis A : General, 2010, 388, pp.272-277 ⟨10.1016/j.apcata.2010.09.001⟩ Journal articles hal-01343473v1
	Influence of the nature of the precursor salts on the properties of Rh-Ge/TiO2 catalysts for citral hydrogenation Aurélie Vicente , Tchirioua Ekou , Gwendoline Lafaye , Catherine Especel , Patrice Marecot Journal of Catalysis, 2010, 275 pp.202-210. ⟨10.1016/j.jcat.2010.07.015⟩ Journal articles hal-01342734v1
	Relationship between the structural properties of supported bimetallic Pt-Rh catalysts and their performances for methylcyclopentane ring opening P. Samoila , M. Boutzeloit , C. Especel , Florence Epron , P. Marecot Journal of Catalysis, 2010, 276 (2), pp.237-248. ⟨10.1016/j.jcat.2010.09.017⟩ Journal articles hal-01342655v1
	Control of titania nanodomain size as a route to modulate SMSI effect in Pt/TiO2 catalysts Magali Bonne , Petrisor Samoila , Tchirioua Ekou , Catherine Especel , Florence Epron Catalysis Communications, 2010, 12, pp.86-91. ⟨10.1016/j.catcom.2010.08.010⟩ Journal articles hal-01342680v1
	Influence of tin addition by redox reaction in different media on the catalytic properties of Pt-Re/Al2O3 naphtha reforming catalysts Silvana A. d'Ippolito , Carlos R. Vera , Florence Epron , Petrisor Samoila , Catherine Especel Applied Catalysis A : General, 2009, 370, pp.34-41. ⟨10.1016/j.apcata.2009.09.012⟩ Journal articles hal-01343082v1
	Selective ring-opening of methylcyclopentane on platinum-based bimetallic catalysts P. Samoila , M. Boutzeloit , C. Especel , Florence Epron , P. Marecot Applied Catalysis A : General, 2009, 369 (1-2), pp.104-112. ⟨10.1016/j.apcata.2009.09.006⟩ Journal articles hal-01343088v1
	Catalytic Properties of Pt-Re/Al2O3 Naphtha-Reforming Catalysts Modified by Germanium Introduced by Redox Reaction at Different pH Values Silvana A. d'Ippolito , Carlos R. Vera , Florence Epron , Petrisor Samoila , Catherine Especel Industrial and engineering chemistry research, 2009, 48 (8), pp.3771-3778. ⟨10.1021/ie801158j⟩ Journal articles hal-01343101v1
	Preparation of silica-supported cobalt catalysts from water-in-oil microemulsion for selective hydrogenation of citral K. Kouachi , G. Lafaye , C. Especel , O. Cherifi , P. Marecot Journal of Molecular Catalysis A: Chemical, 2009, 308 pp.142-149. ⟨10.1016/j.molcata.2009.04.001⟩ Journal articles hal-01343094v1
	Naphtha reforming Pt-Re-Ge/γ-Al2O3 catalysts prepared by catalytic reduction. Influence of the pH of the Ge addition step Silvana D’ippolito , Carlos Vera , Florence Epron , Catherine Especel , Patrice Marecot Catalysis Today, 2008, 133-135, pp.13-19. ⟨10.1016/j.cattod.2007.11.014⟩ Journal articles hal-02109917v1
	Preparation of trimetallic Pt-Re-Ge/Al2O3 and Pt-Ir-Ge/Al2O3 naphtha reforming catalysts by surface redox reaction Viviana M. Benitez , Marieme Boutzeloit , Vanina Mazzieri, , Catherine Especel , Florence Epron Applied Catalysis A : General, 2007, 319, pp.210-217. ⟨10.1016/j.apcata.2006.12.006⟩ Journal articles hal-01343108v1
	Effects of support and metal loading on the characteristics of Co based catalysts for selective hydrogenation of citral K. Kouachi , Gwendoline Lafaye , Catherine Especel , O. Cherifi , Patrice Marecot Journal of Molecular Catalysis A: Chemical, 2007, pp.18. ⟨10.1016/j.molcata.2007.10.018⟩ Journal articles hal-00295796v1
	Influence of the pretreatment method on the properties of trimetallic Pt–Ir–Ge/Al2O3 prepared by catalytic reduction Petrisor Samoila , Marieme Boutzeloit , Viviana Benitez , Silvana D’ippolito , Catherine Especel Applied Catalysis A : General, 2007, 332 (1), pp.37-45. ⟨10.1016/j.apcata.2007.07.045⟩ Journal articles hal-02109919v1
	Bimetallic Rh-Ge and Pt-Ge catalysts supported on TiO2 for citral hydrogenation I. Preparation and characterization of the catalysts T. Ekou , A. Vicente , G. Lafaye , C. Especel , P. Marecot Applied Catalysis A : General, 2006, 314, pp.64-72. ⟨10.1016/j.apcata.2006.08.003⟩ Journal articles hal-01343117v1
	Replacement of the sulfiding step by addition of germanium on Pt-Re/Al2O3 and Pt-Ir/Al2O3 naphtha reforming catalysts M. Boutzeloit , V. M. Benitez , Catherine Especel , Florence Epron , C. R. Vera Catal. Comm, 2006, 7, pp.627 Journal articles hal-00289791v1
	Effect of the method of addition of Ge on the catalytic properties of Pt-Re/Al2O3 and Pt-Ir/Al2O3 naphtha reforming catalysts Marieme Boutzeloit , Viviana M. Benitez , Vanina Mazzieri, , Catherine Especel , Florence Epron Catalysis Communications, 2006, 7, pp.627-632. ⟨10.1016/j.catcom.2006.01.029⟩ Journal articles hal-01343119v1
	Bimetallic Rh-Ge and Pt-Ge catalysts supported on TiO2 for citral hydrogenation II. Catalytic properties T. Ekou , A. Vicente , G. Lafaye , C. Especel , P. Marecot Applied Catalysis A : General, 2006, 314, pp.73-80. ⟨10.1016/j.apcata.2006.08.004⟩ Journal articles hal-01343112v1
	Preparation of trimetallic Pt-Re-Ge/Al2O3 and Pt-Ir-Gr/Al2O3 by catalytic reduction. V. M. Benitez , M. Boutzeloit , C. R. Vera , Catherine Especel , Florence Epron Actes du XIV Congreso Argentino De Catalysis, (ISBN 987-508-565-0),, 2005, pp.416-421 Journal articles hal-00292173v1
	Influence of the preparation method on the properties of Pt-Re-Ge/Al2O3 and Pt-Ir-Ge/Al2O3 naphtha reforming catalysts. M. Boutzeloit , V. M. Benitez , Catherine Especel , Florence Epron , C. R. Vera Actes du 13° Congresso Brasileiro de Catálise, 3° Congresso de Catálise do Mercosul ,, 2005, 1, pp.272-277 Journal articles hal-00292168v1
	Palladium supported catalysts for the selective hydrogenation of sunflower oil. B. Nohair , Catherine Especel , Gwendoline Lafaye , P. Marecot , L. C. Hoang Journal of Molecular Catalysis A: Chemical, 2005, 229, pp.117. ⟨10.1016/j.molcata.2004.11.017⟩ Journal articles hal-00288416v1
	FTIR studies of CO adsorption on Rh-Ge/Al2O3 catalysts prepared by surface redox reactions G. Lafaye , C. Mihut , C. Especel , P. Marecot , M.D. Amiridis Langmuir, 2004, 20, pp.10612-10616 ⟨10.1021/la049692l⟩ Journal articles hal-01343142v1
	Selective hydrogenation of sunflower oil over supported precious metals B. Nohair , C. Especel , P. Marecot , C. Montassier , L.C. Hoang Comptes Rendus Chimie , 2004, 7, pp.113-118. ⟨10.1016/j.crci.2003.10.012⟩ Journal articles hal-01343123v1
	Citral hydrogenation over alumina supported Rh-Ge catalysts - Effects of the reduction temperature G. Lafaye , T. Ekou , C. Micheaud-Especel , C. Montassier , P. Marecot Applied Catalysis A : General, 2004, 257, pp.107-117 ⟨10.1016/S0926-860X(03)00634-3⟩ Journal articles hal-01343131v1
	Characterization of bimetallic rhodium-germanium catalysts prepared by surface redox reaction G. Lafaye , C. Micheaud-Especel , C. Montassier , P. Marecot Applied Catalysis A : General, 2002, 230, pp.19-30. ⟨10.1016/S0926-860X(01)00980-2⟩ Journal articles hal-01343154v1
	Study of supported bimetallic Pd-Pt catalysts. Characterization and catalytic activity for toluene hydrogenation C. Micheaud-Especel , Dominique Bazin , M. Guérin , P. Marecot , J. Barbier Reaction Kinetics and Catalysis Letters, 2000, 69, pp.209-216. ⟨10.1023/A:1005623127174⟩ Journal articles hal-01343162v1
	Preparation of alumina supported palladium-platinum catalysts by surface redox reactions. Activity for complete hydrocarbon oxidation C. Micheaud , P. Marecot , M. Guérin , J. Barbier Applied Catalysis A : General, 1998, 171, pp.229-239. ⟨10.1016/S0926-860X(98)00093-3⟩ Journal articles hal-01343433v1
	Deactivation by coking of supported palladium catalysts. Effect of time and temperature P. Marecot , A. Akhachane , C. Micheaud , J. Barbier Applied Catalysis A : General, 1998, 169, pp.189-196. ⟨10.1016/S0926-860X(98)00002-7⟩ Journal articles hal-01343446v1
	Pd-Pt/Al2O3 catalysts: preparation by redox reactions, characterization and catalytic activity C. Micheaud , P. Marecot , M. Guérin , J. Barbier Journal de Chimie Physique et de Physico-Chimie Biologique, 1997, 94, pp.1897-1905. ⟨10.1051/jcp/1997941897⟩ Journal articles hal-01343450v1
	Preparation and characterization of Pd-Pt/Al2O3 catalysts C. Micheaud , Maurice Guerin , P. Marecot , C. Geron , J. Barbier Journal de Chimie Physique et de Physico-Chimie Biologique, 1996, 93, pp.1394-1411. ⟨10.1051/jcp/1996931394⟩ Journal articles hal-01343451v1

	Surface redox reactions for tuning the surface composition of bimetallic nanoparticles and their catalytic properties: the contribution of Poitiers catalysis laboratory Catherine Especel , Gwendoline Lafaye , Florence Epron French-Argentinean Workshop on Heterogeneous Catalysis, Apr 2023, Santa Fe, Argentina Conference papers hal-04160782v1
	Surface redox reactions for tuning the surface composition of bimetallic nanoparticles and their catalytic properties: the contribution of Poitiers catalysis laboratory Catherine Especel C’Nano 2023, Mar 2023, Poitiers, France Conference papers hal-04160781v1
	Oxidative dehydrogenation of propane for the production of propylene using VOx/Al2O3 catalysts Silvana D’ippolito , Catherine Especel , Florence Epron , Carlos Pieck , Viviana M. Benitez French-Argentinean Workshop on Heterogeneous Catalysis, Apr 2023, Santa Fe, Argentina Conference papers hal-04160798v1
	Optimized design of supported bimetallic catalysts for the valorization of biomass and for applications in energy Catherine Especel II Meeting on Materials Science and Engineering (II Multimat), Mar 2021, Pelotas, Brazil Conference papers hal-04160775v1
	Effect of platinum size of Pt/γ-Al2O3 catalysts on propane dehydrogenation Alexandre van Assche , Anthony Le Valant , Catherine Especel , Florence Epron The 6th International Scientific School-Conference for Young Scientists “Catalysis: from Science to Industry”, Oct 2020, Tomsk, Russia Conference papers hal-04160794v1
	Selective heterogeneous hydrogenation of biobased acids to diols L. Corbel-Demailly , Bao-Khanh Ly , Doan Pham Minh , Benoit Tapin , Catherine Especel 2nd International Congress on Catalysis for Biorefineries (CatBior 2013), Sep 2013, Dalian, China Conference papers hal-00864870v1
	Performances of Pd-Re/TiO2 for the selective hydrogenation of succinic acid in aqueous-phase: influence of the Re introduction method and the Re loading. [+affiche] B. Tapin , F. Epron , C. Especel , B. K. Ly , C. Pinel XIth European Congress on Catalysis, EuropaCat XI, Sep 2013, Lyon, France Conference papers hal-00929964v1
	Effect of addition mode of Re in bimetallic Pd-Re/TiO2 catalysis upon the selective aqueous-phase hydrogenation of succinic acid to 1,4-butanediol B. Ly , D.P Minh , C. Pinel , M. Besson , B. Tapin 24th Organic Reactions Catalysis Society Conference, Apr 2012, Annapolis, United States Conference papers hal-00728698v1
	Effect of Pd-Re/TiO2 catalysts preparation mode upon the selective aqueous-phase hydrogenation of succunic acid to 1,4-butanediol B. Ly , D.P Minh , C. Pinel , M. Besson , B. Tapin 15th International Congress On Catalysis, Jul 2012, Munich, Germany Conference papers hal-00728777v1
	Preparation and characterization of bimetallic Pd-Re/TiO2 prepared by surface redox reaction for aqueous phase succinic hydrogenation B. Tapin , C. Especel , F. Epron , B. Khanh Li , M. Besson Europacat X, Aug 2011, Glasgow, United Kingdom Conference papers hal-00662299v1
	Aqueous-phase hydrogenation of biomass-based succinic acid over titania supported bimetallic catalysts. B. Khanh Ly , Doan Pham Minh , M. Besson , C. Pinel , B. Tapin CAFC9, 9th Congress on Catalysis Applied to Fine Chemicals, Sep 2010, Zaragoza, Spain Conference papers hal-00498709v1
	Influence of the preparation method on the properties of Pt-Re-Ge/Al2O3 and Pt-Ir-Ge/Al2O3 naphtha reforming catalysts. 13° Congresso Brasileiro de Catálise, 3° Congresso de Catálise do Mercosul , Foz do Iguaçu, (Brésil), 2005. M. Boutzeloit , V. M. Benitez , Catherine Especel , Florence Epron , C. R. Vera Influence of the preparation method on the properties of Pt-Re-Ge/Al2O3 and Pt-Ir-Ge/Al2O3 naphtha reforming catalysts., 2005, Isle of Ischia, Italy Conference papers hal-00292868v1
	Preparation of trimetallic Pt-Re-Ge/Al2O3 and Pt-Ir-Gr/Al2O3 by catalytic reduction. XIV Congreso Argentino De Catalysis, Santa Fe, (Argentine), 2005. V. M. Benitez , M. Boutzeloit , C. R. Vera , Catherine Especel , Florence Epron Preparation of trimetallic Pt-Re-Ge/Al2O3 and Pt-Ir-Gr/Al2O3 by catalytic reduction., 2005, SANTA FE, Argentina Conference papers hal-00292872v1
	Preparation and application of Bimetallic catalysts synthesized by surface redox reactions. IFP-CNRS-NFS workshop “Future Directions in Catalysis: Nanostructured Catalysts, Lyon, 2005 Florence Epron , Catherine Especel , Patrice Marecot Preparation and application of Bimetallic catalysts synthesized by surface redox reactions., 2005, LYON, France Conference papers hal-00293104v1
	Ouverture sélective du méthylcyclopentane sur des catalyseurs bimétalliques à base de platine Pt/Al2O3. GECAT, La Rochelle, 2005 M. Boutzeloit , Florence Epron , Catherine Especel , Patrice Marecot Ouverture sélective du méthylcyclopentane sur des catalyseurs bimétalliques à base de platine Pt/Al2O3., 2005, LA ROCHELLE, France Conference papers hal-00292863v1
	Hydrogénation sélective du citral sur catalyseurs bimétalliques préparés par réactions rédox de surface: effet de la nature du métal de base. Réunion Scientifique S.F.C., Tours, 2005. T. Ekou , Catherine Especel , Gwendoline Lafaye , Patrice Marecot Hydrogénation sélective du citral sur catalyseurs bimétalliques préparés par réactions rédox de surface: effet de la nature du métal de base., 2005, TOURS, France Conference papers hal-00293107v1
	Preparation and characterization of trimetallic Pt-Re-Ge/Al2O3 and Pt-Ir-Ge/Al2O3 reforming catalysts. 19th North American Catalysis Society Meeting, Philadelphie (Etats-Unis), 2005 M. Boutzeloit , V. M. Benitez , Catherine Especel , F. Epron , C. R. Vera Preparation and characterization of trimetallic Pt-Re-Ge/Al2O3 and Pt-Ir-Ge/Al2O3 reforming catalysts., 2005, PHILADELPHIE, United States Conference papers hal-00292861v1
	Citral hydrogenation over titania supported Rh-Ge and Pt-Ge catalysts. EuropAcat-VII, Sofia (Bulgarie), 2005. T. Ekou , C. La Fontaine , Gwendoline Lafaye , Catherine Especel , Patrice Marecot Citral hydrogenation over titania supported Rh-Ge and Pt-Ge catalysts., 2005, SOFIA, Bulgaria Conference papers hal-00293111v1

	Surface characterization of ReOx-Pd/TiO2 catalyst : Influence of support and protocols of Pd and Re deposition P. Delichere , B-K. Ly , D. Tapin , F. Epron , C. Especel ECASIA 1516 th European Conference on Applications of Surface and Interface Analysis, Sep 2015, grenade, Spain Conference poster hal-01205842v1

	Multimetallic Nanoparticles Prepared by Redox Processes Applied in Catalysis Florence Epron , Catherine Especel , Gwendoline Lafaye , Patrice Marcot Didier Astruc. Nanoparticles and Catalysis, Wiley, pp.279-302, 2007, 9783527315727. ⟨10.1002/9783527621323.ch9⟩ Book sections hal-03179263v1

Catherine ESPECEL

Publications

Liquid-phase sorbitol hydrogenolysis over Co catalysts: Effect of external vs endogenous H2 on the product distribution

DFT Atomic‐Scale Insight into Pt/Cu Single Atom Alloy Clusters Supported on γ‐Al2O3: The Effect of Hydrogen Environment

Catalytic Dehydrogenation on Ultradisperse Sn-Promoted Ir Catalysts Supported on MgAl2O4 Prepared by Different Techniques

Designing CuO–SiO2 and Cu0–SiO2 Monolithic Ceramics Bearing Hierarchical Porosity Toward Robust and Cycling CO Oxidation Properties

Bimetallic Catalysts For Sustainable Chemistry: Surface Redox Reactions For Tuning The Catalytic Surface Composition

Binary CoOx–SiO2 Porous Nanostructures for Catalytic CO Oxidation

Effect of potassium and platinum contents on catalytic performance of Pt/Al2O3 monometallic catalysts for propane dehydrogenation

Influence of the Ir content and the support on the thiotolerance of the Ir/SiO2-Al2O3 catalysts used in selective ring opening of decalin

Description of supported metal structure sensitivity by a geometric approach

Characterization by X-ray absorption spectroscopy of bimetallic Re-Pd/ TiO 2 catalysts efficient for selective aqueous-phase hydrogenation of succinic acid to 1,4-butanediol

Tracking the paths for the sucrose transformations over bifunctional Ru-POM/AC catalysts

Ru-Sn-B/TiO 2 catalysts for methyl oleate selective hydrogenation. Influence of the preparation method and the chlorine content

Ru‐Pt catalysts supported on Al2O3 and SiO2─Al2O3 for the selective ring opening of naphthenes

Supported Co-Re Bimetallic Catalysts with Different Structures as Efficient Catalysts for Hydrogenation of Citral

Biofuel Synthesis from Sorbitol by Aqueous Phase Hydrodeoxygenation over Bifunctional Catalysts: In-depth Study of the Ru–Pt/SiO2–Al2O3 Catalytic System

In situ preparation of bimetallic ReOx-Pd/TiO2 catalysts for selective aqueous-phase hydrogenation of succinic acid to 1,4-butanediol

Effect of the metallic particle size of supported Pt catalysts on methylcyclopentane hydrogenolysis: Understanding of the ring opening products distribution by a geometric approach

One-step Modification of Active Sites and Support in Ni/Al 2 O 3 Catalyst for Hydrodeoxygenation of Lignin-derived Diphenyl Ether

Sorbitol transformation into biofuels over bimetallic platinum based catalysts supported on SiO2-Al2O3 – Effect of the nature of the second metal

Selective ring opening of decalin on Rh-Pd/SiO2-Al2O3 bifunctional systems: Catalytic performance and deactivation

Influence of Re–M interactions in Re–M/C bimetallic catalysts prepared by a microwave-assisted thermolytic method on aqueous-phase hydrogenation of succinic acid

Influence of rhodium content on the behavior of Rh/SiO 2 –Al 2 O 3 catalysts for selective ring opening of decalin

Controlled preparation and characterization of Pt-Rh/Al2O3 bimetallic catalysts for reactions in reducing conditions

Sorbitol transformation over bimetallic Ru-Pt/SiO2-Al2O3 catalysts: Effect of the preparation method

Catalytic oxidation of n -butanol over platinum supported mesoporous silica CMI-1

Toward the improvement in unsaturated alcohol selectivity during α,β-unsaturated aldehyde selective hydrogenation, using Zn as promoter of Pt

Selective ring opening of methylcyclohexane and decalin over Rh-Pd supported catalysts: Effect of the preparation method

Influence of the support on the selective ring opening of methylcyclohexane and decalin catalyzed by Rh-Pd catalysts

Insights into the Oxidation State and Location of Rhenium in Re-Pd/TiO2 Catalysts for Aqueous-Phase Selective Hydrogenation of Succinic Acid to 1,4-Butanediol as a Function of Palladium and Rhenium Deposition Methods

Hydrocarbon fuel synthesis from sorbitol over bifunctional catalysts: Association of tungstated titania with platinum, palladium or iridium

New insights into the mechanism of sorbitol transformation over an original bifunctional catalytic system.

Polyol hydrogenolysis on supported Pt catalysts: Comparison between glycerol and 1,2-propanediol

New bifunctional catalytic systems for sorbitol transformation into biofuels

Bimetallic catalysts for hydrogenation in liquid phase

Influence of the Brønsted acidity, SiO2/Al2O3 ratio and Rh-Pd content on the ring opening: Part I. Selective ring opening of decalin

Influence of the Re introduction method onto Pd/TiO2 catalysts for the selective hydrogenation of succinic acid in aqueous-phase

Influence of the Brønsted acidity, SiO2/Al2O3 ratio and Rh-Pd content on the ring opening. Part II. Selective ring opening of methylcyclohexane

Study of Monometallic Pd/TiO2 Catalysts for the Hydrogenation of Succinic Acid in Aqueous Phase

Influence of chlorine on the catalytic properties of supported rhodium, iridium and platinum in ring opening of naphthenes

Study of Monometallic Pd/TiO2 Catalysts for the Hydrogenation of Succinic Acid in Aqueous Phase

Heterogeneous Catalytic Hydrogenation of Biobased Levulinic and Succinic Acids in Aqueous Solutions

Influence of the nature of the support on the catalytic properties of Pt-based catalysts for hydrogenolysis of glycerol

Influence of iridium content on the behavior of Pt-Ir/Al2O3 and Pt-Ir/TiO2 catalysts for selective ring opening of naphthenes

Heterogeneous Catalytic Hydrogenation of Biobased Levulinic and Succinic Acids in Aqueous Solutions

Corrigendum: Heterogeneous Catalytic Hydrogenation of Biobased Levulinic and Succinic Acids in Aqueous Solutions

Transformation of Sorbitol to Biofuels by Heterogeneous Catalysis: Chemical and Industrial Considerations

Effect of Addition Mode of Re in Bimetallic Pd–Re/TiO2 Catalysts Upon the Selective Aqueous-Phase Hydrogenation of Succinic Acid to 1,4-Butanediol

Effect of Addition Mode of Re in Bimetallic Pd-Re/TiO2 Catalysts Upon the Selective Aqueous-Phase Hydrogenation of Succinic Acid to 1,4-Butanediol

Selective hydrogenation of citral to unsaturated alcohols over mesoporous Pt/Ti-Al2O3 catalysts. Effect of the reduction temperature and of the Ge addition

Citral hydrogenation on high surface area mesoporous TiO2-SiO2 supported Pt nanocomposites: Effect of titanium loading and reduction temperature on the catalytic performances

Supported Pt-Rh bimetallic catalysts as efficient systems for methylcyclohexane ring opening

Sorbitol transformation in aqueous medium: Influence of metal/acid balance on reaction selectivity

Catalytic performances of large pore Ti-SBA15 supported Pt nanocomposites for the citral hydrogenation reaction

Study of the stability of Pt/SiO2-Al2O3 catalysts in aqueous medium: Application for sorbitol transformation

Citral hydrogenation over Rh and Pt catalysts supported on TiO2: Influence of the preparation and activation protocols of the catalysts

Influence of gallium on the properties of Pt-Re/Al2O3 naphtha reforming catalysts

The relationship between the structural properties of bimetallic Pd-Sn/SiO2 catalysts and their performance for selective citral hydrogenation

O-2 and O-3 regeneration of PtReSn/Al2O3 and PtReGe/Al2O3 naphtha reforming catalysts prepared by catalytic reduction

Influence of the nature of the precursor salts on the properties of Rh-Ge/TiO2 catalysts for citral hydrogenation

Relationship between the structural properties of supported bimetallic Pt-Rh catalysts and their performances for methylcyclopentane ring opening

Control of titania nanodomain size as a route to modulate SMSI effect in Pt/TiO2 catalysts

Influence of tin addition by redox reaction in different media on the catalytic properties of Pt-Re/Al2O3 naphtha reforming catalysts

Selective ring-opening of methylcyclopentane on platinum-based bimetallic catalysts

Catalytic Properties of Pt-Re/Al2O3 Naphtha-Reforming Catalysts Modified by Germanium Introduced by Redox Reaction at Different pH Values

Preparation of silica-supported cobalt catalysts from water-in-oil microemulsion for selective hydrogenation of citral

Naphtha reforming Pt-Re-Ge/γ-Al2O3 catalysts prepared by catalytic reduction. Influence of the pH of the Ge addition step

Preparation of trimetallic Pt-Re-Ge/Al2O3 and Pt-Ir-Ge/Al2O3 naphtha reforming catalysts by surface redox reaction

Effects of support and metal loading on the characteristics of Co based catalysts for selective hydrogenation of citral

Influence of the pretreatment method on the properties of trimetallic Pt–Ir–Ge/Al2O3 prepared by catalytic reduction

Bimetallic Rh-Ge and Pt-Ge catalysts supported on TiO2 for citral hydrogenation I. Preparation and characterization of the catalysts

Replacement of the sulfiding step by addition of germanium on Pt-Re/Al2O3 and Pt-Ir/Al2O3 naphtha reforming catalysts

Effect of the method of addition of Ge on the catalytic properties of Pt-Re/Al2O3 and Pt-Ir/Al2O3 naphtha reforming catalysts

Bimetallic Rh-Ge and Pt-Ge catalysts supported on TiO2 for citral hydrogenation II. Catalytic properties

Preparation of trimetallic Pt-Re-Ge/Al2O3 and Pt-Ir-Gr/Al2O3 by catalytic reduction.

Influence of the preparation method on the properties of Pt-Re-Ge/Al2O3 and Pt-Ir-Ge/Al2O3 naphtha reforming catalysts.

Palladium supported catalysts for the selective hydrogenation of sunflower oil.

FTIR studies of CO adsorption on Rh-Ge/Al2O3 catalysts prepared by surface redox reactions

Selective hydrogenation of sunflower oil over supported precious metals

DFT Atomic‐Scale Insight into Pt/Cu Single Atom Alloy Clusters Supported on γ‐Al₂O₃: The Effect of Hydrogen Environment

Binary CoOx–SiO₂ Porous Nanostructures for Catalytic CO Oxidation