retour à l'accueil

Laboratoire d'Electrochimie Moleculaire, LEM, Paris

UMR CNRS - Université Paris Diderot - Paris France

Master Frontiers in Chemistry | UFR de Chimie - Université Paris Diderot - Paris 7 CNRS - Institut de chimie Université de Paris Master Chimie Sorbonne Paris Cité UFR de Chimie - Université Paris Diderot - Paris 7 CNRS - Institut de chimie
 |   Ecole Doctorale 388  |    Master Frontiers in Chemistry   |   C'Nano IdF   |   Respore  |
Université Paris Diderot
Université de Paris CNRS, Centre National de la Recherche Scientifique

Le LEM - Publications: Abstracts

Publication 854

J. Phys. Chem. C, 122 (25), 13834-13839, 2018



Toward Visible-Light Photochemical CO2-to-CH4 Conversion in Aqueous Solutions Using Sensitized Molecular Catalysis


Heng Rao, Julien Bonin, and Marc Robert

Laboratoire d’Electrochimie Moléculaire, UMR 7591, Université Paris Diderot, Sorbonne Paris Cité, CNRS, 15 rue Jean-Antoine de Baïf, F-75205 Paris, France

Solar fuels may be generated upon visible light induced catalytic reduction of carbon dioxide. This appealing approach remains highly challenging, especially when earth abundant catalysts, mild conditions, and water as a solvent were used. Employing an iron tetraphenyl porphyrin complex substituted by positively charged trimethylammonio groups at the para position of each phenyl ring and reduction with three electrons by the excited state of an iridium sensitizer (lamda ›420 nm) reduce CO2 to CO and to CH4 in both acetonitrile and aqueous solutions (acetonitrile/water 3:7 v:v) with good selectivity. Stability of the catalytic system remains a weakness and the reasons were analyzed.

© 2005 LEM CréditsContactVenir au LEM