Charge-transfer interaction and catalytic properties

Gas phase-solid interaction plays an important role for the catalytic performance

Team Leader
Helena Kaper
CNRS Research Scientist

Topics of Research

What is the impact of a solid support in catalysis? This question can be asked looking at different catalytic reactions, support materials and active phase. We like to consider all of them, by modifying the support material (different synthesis methods, materials, and surface areas), active phase (noble metal or nitride/carbide) and reaction (oxidation reactions for depollution, water-gas shift reaction). Will we find the holy grale? Probably not, but maybe get a step closer to interplay of these different parameters…


“Synergy between Metallic and Oxidized Pt Sites Unravelled during Room Temperature CO Oxidation on Pt/Ceria” Meunier F. C., Cardenas L., Kaper H., Šmíd B., Vorokhta M, Grosjean R., Aubert D., Dembélé K., Lunkenbein T., Angew. Chem. Int. Ed. (2021), 4. DOI: 10.1002/anie.202013223
“Porous carbon as catalyst support for CO oxidation: Impact of nitrogen doping “ Avhad M., Flaud V., Burel L., Cavailles J., Sakpal T., Lefferts L., Kaper H., Carbon (2020), 169, 297-306. DOI:10.1016/j.carbon.2020.07.066
“Original Synthesis of Molybdenum Nitrides Using Metal Cluster Compounds as Precursors: Applications in Heterogeneous Catalysis” Guy K., Tessier F., Kaper H., Grasset F., Dumait N., Demange V., Nishio M., Matsushita Y., Matsui Y., Takei T., Lechevalier D., Tardivat C., Uchikoshi T., Ohashi N. and Cordier S., Chemistry of Materials (2020). DOI: 10.1021/acs.chemmater.0c01369
“Facile synthesis of high-surface area platinum-doped ceria for low temperature CO oxidation” S. Gatla, D. Aubert, V. Flaud, R. Grosjean, T. Lunkenbein O. Mathon, S. Pascarelli, H. Kaper, Catal. Today, 2019,
“In situ generated catalyst: copper(II) oxide and copper (I) supported on Ca2Fe2O5 for CO oxidation” B. Penkala, S. Gatla, D. Aubert, M. Ceretti, C. Tardivat, W. Paulus, H. Kaper, Catal. Sci. Technol., 2018, 8, 5236
“Enhancement of Oxygen Activation and Mobility in CaTixFe1xO3d Oxides” P.-A. Répécaud, H. Kaper, M. Richard, F. Can, N. Bion, Chem. Cat. Chem. 2017, 9, 2095-2098. DOI: 10.1002/cctc.201700103
“Room-Temperature CO Oxidation Catalyst: Low-Temperature Metal−Support Interaction between Platinum Nanoparticles and Nanosized Ceria” S. Gatla, D. Aubert, G. Agostini, O. Mathon, S. Pascarelli, T. Lunkenbein, M.-G. Willinger, H. Kaper, ACS Catal, 2016, 6, 6151-6155
“The role of lattice oxygen in CO oxidation over Ce18O2-based catalysts revealed under operando conditions” B. Penkala, D. Aubert, H. Kaper, C. Tardivat, K. Conder, W. Paulus, Catal. Sci. Technol. 2015, 5, 4839-4848


Helena KaperCNRS Research
Maxime Delporte PhD-student
Michaël Martin Romo y
Maya IbrahimPostdoctoral
Rémy PointecouteauPostdoctoral ResearcherRé
Former members
Daniel AubertTechnician
Kévin GuyPhD-student
Andrea MolinoPostdoc
Thai Giang TruongPhD-student
Pierre-Alexis RepecaudPhD-student
Mangesh AvhadPostdoc
Julie CavaillesCo-op student