The EMPRe team conducts research in the field of molecular electrochemistry and redox photochemistry toward the understanding of bond activation trigerred by electron transfer. Within this framework, we are developing and analyzing electrochemical and photoinduced redox catalytic processes in homogeneous solution and on surfaces. Students in the EMPRe team are trained in synthesis of ligands, transition metal complexes or organic dyes. Then, they apply methods of molecular electrochemistry (cyclic voltammetry, electrolysis), spectroelectrochemistry, surface modification (electropolymerization, electrodeposition) to study mechanisms of electro/photo-catalytic processes. In this context, we are investigating in particular small molecules activation such as H2O, CO2, N2O... To provide a rational approach to mechanistic study and an inteligent design of molecular catalysts, we are developing kinetic and theoretical models related to cyclic voltammetry and electro-photo-catalytic processes.

Permanent researchers

Sylvie Chardon (DR CNRS), Marie-Noëlle Collomb (DR CNRS), Cyrille Costentin (PR UGA), Jérôme Fortage (CR CNRS), Eric Saint-Aman (PR UGA)

Research activities

Behavior of Iron Tetraphenylsulfonato Porphyrin Intercalated into LDH and LSH as Materials for Electrocatalytic Applications.
A. Tarhini, J. Aguirre-Araque, M. Guyot, C. Costentin, R. Rogez*, S. Chardon-Noblat*, V. Prevot, C. Mousty*
Electrocatalysis, 2023, 14, 111-120
Electrochemical properties of a Rhodium(III) mono-terpyridyl complex and use as a catalyst for light-driven hydrogen evolution in water.
F. Camara,T. Gavaggio B. Dautreppe, J. Chauvin, J. Pécaut, D. Aldakov, M.-N. Collomb*, J. Fortage*
Molecules, 2022, 27(19), 6614
Effect of Substituents Mimicking Anchorage of Rhenium Carbonyl Bipyridine Molecular Catalysts on CO2 Electroreduction
M. Guyot, M-N. Lalloz, J. S. Aguirre-Araque, G. Rogez, C. Costentin*, S. Chardon-Noblat*
Inorg. Chem., 2022, 61, 16072-16080
Electrochemical Mechanistic Analysis from Cyclic Voltammograms Based on Deep Learning.
B. B. Hoar, W. Zhang, S. Xu, R. Deeba, C. Costentin*, Q. Gu*, C.Liu*
ACS Meas. Sci. Au, 2022, 2, 55-604
Photochromic Metallopolymer Based on Dithienylethene as a Molecular Calculator.
E. Chatir, A. Khettabi, F. Lafolet, D. Jouvenot, G. Royal, E. Saint-Aman, S. Cobo*
Chem. Mater., 2022, 34, 5912-5918
Photoinduced Catalysis of Redox Reactions, Turnover Numbers, Turnover Frequency and Limiting Processes: Kinetic Analysis and Application to Light-Driven Hydrogen Production.
C. Costentin*, F. Camara, J. Fortage, M.-N. Collomb
ACS Catal.. 2022, 12, 6246-6254.
Proton Coupled Electron Transfer of Macrocyclic Ring Hydrogenation: The Chlorinphlorin.
R. Sun, M. Liu, S-L. Zheng, K. D. Dogutan*, C. Costentin*, D. G. Nocera*
Proc.Natl. Acad. Sci USA, 2022, 119, e2122063119
Photoredox Processes in the Aggregation and Gelation of Electron- Responsive Supramolecular Polymers Based on Viologens
C. Roizard, V. Andrieux, S. Al Shehimy, S. Chowdhury, Q. Reynard-Feytis, C. Kahlfuss, E. Saint-Aman, F. Chevallier, C. Bucher*, T. Gibaud*, D. Frath*
ECS Adv., 2022, 1, 020502
p-Block Metal-Oxide Noninnocence in the Oxygen Evolution Reaction in Acid: The Case of Bismuth Oxide.
A. E. Thorarinsdottir, C. Costentin, S. S. Veroneau, D. G. Nocera*
Chem. Mater., 2022, 34, 826-835