Carbon Dioxide Reduction to Methanol with a Molecular Cobalt‐Catalyst‐Loaded Porous Carbon Electrode Assisted by a CIGS Photovoltaic Cell**
In: ChemPhotoChem, Jg. 5 (2021-05-04), S. 705-710
Online
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Zugriff:
International audience; Conversion of CO2 into valuable compounds, including fuels, with renewable energy sources and sustainable compounds is a challenge addressed by artificial photosynthesis research. In particular, the application of solar assisted electrochemical (EC) processes, in which electrons are furnished by a photovoltaic (PV) cell, is a promising approach. A PV-EC system is described, consisting of a CIGS (copper indium gallium selenide) PV unit linked to a carbon electrode loaded with cobalt phthalocyanine as molecular catalyst, able to achieve the CO2 reduction to CO and then to methanol in aqueous media with limited bias voltage. Using CO as starting material, a partial current density of ca. 0.6 mA cm−2 for methanol is obtained at a bias voltage corresponding to a low 240 mV overpotential. Remarkably, the liquid fuel production can be sustained for at least 7 h. Under ideal conditions, the CO2-to-CH3OH reaction shows a global Faradaic efficiency of 28 %.
| Titel: |
Carbon Dioxide Reduction to Methanol with a Molecular Cobalt‐Catalyst‐Loaded Porous Carbon Electrode Assisted by a CIGS Photovoltaic Cell**
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| Autor/in / Beteiligte Person: | Barreau, Nicolas ; Wang, Ruwen ; Bonin, Julien ; Odobel, Fabrice ; Boutin, Etienne ; Robert, Marc ; Laboratoire d'Electrochimie Moléculaire (LEM (UMR_7591)) ; Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP) ; Ecole Polytechnique Fédérale de Lausanne (EPFL) ; Institut des Matériaux Jean Rouxel (IMN) ; Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST) ; Université de Nantes (UN)-Université de Nantes (UN)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Ecole Polytechnique de l'Université de Nantes (EPUN) ; Université de Nantes (UN)-Université de Nantes (UN) ; Chimie Et Interdisciplinarité : Synthèse, Analyse, Modélisation (CEISAM) ; Université de Nantes (UN)-Université de Nantes (UN)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC) ; Institut Universitaire de France (IUF) ; Ministère de l'Education nationale, de l’Enseignement supérieur et de la Recherche (M.E.N.E.S.R.) |
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| Zeitschrift: | ChemPhotoChem, Jg. 5 (2021-05-04), S. 705-710 |
| Veröffentlichung: | Wiley, 2021 |
| Medientyp: | unknown |
| ISSN: | 2367-0932 (print) |
| DOI: | 10.1002/cptc.202100035 |
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