期刊
NATURE CATALYSIS
卷 2, 期 12, 页码 1062-1070出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/s41929-019-0388-2
关键词
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资金
- Department of Energy [DE-FE0029868]
- National Science Foundation [CBET-1803200]
- University of Delaware Blue Hen Proof of Concept programme
The electrochemical conversion of carbon dioxide to value-added chemical products has been heavily explored as a promising strategy for carbon utilization. However, the direct synthesis of multi-carbon (C2+) products suffers from undesired side reactions and relatively low selectivity. Electrochemically converting CO2 to single-carbon products is much more effective and being commercially deployed. Recent studies have shown that CO can be electrochemically transformed further to C2+ at high reaction rates, high C2+ selectivity and inherently improved electrolyte stability, raising the prospect of a two-step pathway to transform CO2. In this Perspective, the progress towards high-rate CO conversion is shown alongside mechanistic insights and device designs that can improve performance even further. A techno-economic analysis of the two-step conversion process and cradle-to-gate lifecycle assessment shows the economic feasibility and improved environmental impact of a high-volume commercial process generating acetic acid and ethylene compared to the current state of the art.
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