Nature, volume 275, issue 5676, pages 115-116

Photoelectrochemical reduction of aqueous carbon dioxide on p-type gallium phosphide in liquid junction solar cells

Publication typeJournal Article
Publication date1978-09-01
Journal: Nature
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor64.8
ISSN00280836, 14764687
Multidisciplinary
Abstract
THE non-biological reduction of carbon dioxide to organic compounds is of interest, as an alternative to natural photosynthesis, for the production of organic raw materials or fuel. In one approach, the required energy was supplied by irradiation with UV light, in the presence of ferrous salts, and resulted in the production of formic acid and of formaldehyde1. In another approach, the energy was supplied from an external power source by electrochemical reduction of aqueous carbon dioxide. The reduction of carbon dioxide and production of formic acid during the electrolysis of sodium bicarbonate in aqueous solutions has also been reported2, and a study of the reduction of carbon dioxide on a mercury cathode reviews earlier work3. Polarographic measurements on mercury electrodes showed that carbon dioxide, rather than the bicarbonate ion, is the electroactive species, with a half-wave reduction potential of −2.1 V (relative to SCE), and that formic acid is the only product4. We report here the photoassisted electrolytic reduction of aqueous carbon dioxide, achieved using p-type gallium phosphide as a photocathode, with part or all of the energy being supplied by light. The products were formic acid, formaldehyde and methanol.

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GOST |
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GOST Copy
Halmann M. Photoelectrochemical reduction of aqueous carbon dioxide on p-type gallium phosphide in liquid junction solar cells // Nature. 1978. Vol. 275. No. 5676. pp. 115-116.
GOST all authors (up to 50) Copy
Halmann M. Photoelectrochemical reduction of aqueous carbon dioxide on p-type gallium phosphide in liquid junction solar cells // Nature. 1978. Vol. 275. No. 5676. pp. 115-116.
RIS |
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RIS Copy
TY - JOUR
DO - 10.1038/275115a0
UR - https://doi.org/10.1038/275115a0
TI - Photoelectrochemical reduction of aqueous carbon dioxide on p-type gallium phosphide in liquid junction solar cells
T2 - Nature
AU - Halmann, M.
PY - 1978
DA - 1978/09/01 00:00:00
PB - Springer Nature
SP - 115-116
IS - 5676
VL - 275
SN - 0028-0836
SN - 1476-4687
ER -
BibTex |
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BibTex Copy
@article{1978_Halmann,
author = {M. Halmann},
title = {Photoelectrochemical reduction of aqueous carbon dioxide on p-type gallium phosphide in liquid junction solar cells},
journal = {Nature},
year = {1978},
volume = {275},
publisher = {Springer Nature},
month = {sep},
url = {https://doi.org/10.1038/275115a0},
number = {5676},
pages = {115--116},
doi = {10.1038/275115a0}
}
MLA
Cite this
MLA Copy
Halmann, M.. “Photoelectrochemical reduction of aqueous carbon dioxide on p-type gallium phosphide in liquid junction solar cells.” Nature, vol. 275, no. 5676, Sep. 1978, pp. 115-116. https://doi.org/10.1038/275115a0.
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