In:
ChemPhotoChem, Wiley, Vol. 5, No. 8 ( 2021-08), p. 705-710
Abstract:
Conversion of CO 2 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 CO 2 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 CO 2 ‐to‐CH 3 OH reaction shows a global Faradaic efficiency of 28 %.
Type of Medium:
Online Resource
ISSN:
2367-0932
,
2367-0932
DOI:
10.1002/cptc.202100035
Language:
English
Publisher:
Wiley
Publication Date:
2021
detail.hit.zdb_id:
2881321-2
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