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Hydrogen photoproduction

Published on 24 January 2019

Leader Dr. Murielle Chavarot-Kerlidou, in collaboration with Dr. Vincent Artero

Dr. Murielle Chavarot-Kerlidou
CNRS researcher

Laboratoire Chimie et Biologie des Métaux 
17 avenue des Martyrs
38 054 Grenoble cedex 09

Phone: (33) 4 38 78 91 07


Artificial photosynthesis (more on the SolHyCat Web site)

Homogeneous light-driven catalytic systems for hydrogen production and, more generally, efficient photo-activated synthetic multi-electron catalysts remain relatively scarce. Such systems generally consist of
(i) a photosensitizer, often based on the ruthenium tris(diimine) moiety,
(ii) a metal-based catalytic center and in some cases
(iii) an additional redox mediator. However their efficiency remains to be improved in terms of both turnover numbers (stability) and turnover frequencies and these systems should use inexpensive first-row transition metal catalysts rather than unsustainable noble metals. We have used cobaloximes and diimine-dioxime cobalt H
2-evolving catalysts to design homogeneous photo-catalysts for hydrogen evolution.

Homogeneous light-driven systems (more on the SolHyCat Web site)

Figure: Structure of a Ruthenium-Cobalt supramolecular photocatalyst for H
2 evolution.

We are now engaged in several projects aiming at immobilizing such photocatalytic systems onto transparent conducting surfaces so as to build H
2-evolving photoelectrodes.

Towards H2-evolving photoelectrode materials (more on the SolHyCat Web site)

ArtipHyction, a collaborative FCH-JU-funded project

The ERC-granted PhotoCatH2ode project