Photons to formate: Efficient electrochemical solar energy conversion via reduction of carbon dioxide

被引:75
作者
White, James L. [1 ]
Herb, Jake T. [1 ]
Kaczur, Jerry J. [2 ]
Majsztrik, Paul W. [2 ]
Bocarsly, Andrew B. [1 ,2 ]
机构
[1] Princeton Univ, Dept Chem, Princeton, NJ 08544 USA
[2] Liquid Light Inc, Monmouth Jct, NJ USA
基金
美国国家科学基金会;
关键词
CO2; electroreduction; Solar energy storage; Liquid solar fuel; Artificial photosynthesis; PHOTOELECTROCHEMICAL REDUCTION; OXYGEN EVOLUTION; HYDROGEN; WATER; CO2; ELECTRODES; PHOSPHIDE; METHANOL;
D O I
10.1016/j.jcou.2014.05.002
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The storage of solar energy as formic acid generated electrochemically from carbon dioxide has been identified as a viable solar fuel pathway. We report that this transformation can be accomplished by separating light absorption and CO2 reduction through the use of a commercial solar panel illuminated with natural AM1.5 sunlight to power a custom closed-loop electrochemical flow cell stack. Faradaic yields for formate of up to 67% have been demonstrated in this system, yielding a solar energy to fuel thermionic conversion efficiency above 1.8%. (C) 2014 Elsevier Ltd. All rights reserved.
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页码:1 / 5
页数:5
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