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DOI10.1126/science.aay4217
CO2 electrolysis to multicarbon products at activities greater than 1 A cm−2
García de Arquer F.P.; Dinh C.-T.; Ozden A.; Wicks J.; McCallum C.; Kirmani A.R.; Nam D.-H.; Gabardo C.; Seifitokaldani A.; Wang X.; Li Y.C.; Li F.; Edwards J.; Richter L.J.; Thorpe S.J.; Sinton D.; Sargent E.H.
发表日期2020
ISSN0036-8075
起始页码661
结束页码666
卷号367期号:6478
英文摘要Electrolysis offers an attractive route to upgrade greenhouse gases such as carbon dioxide (CO2) to valuable fuels and feedstocks; however, productivity is often limited by gas diffusion through a liquid electrolyte to the surface of the catalyst. Here, we present a catalyst:ionomer bulk heterojunction (CIBH) architecture that decouples gas, ion, and electron transport. The CIBH comprises a metal and a superfine ionomer layer with hydrophobic and hydrophilic functionalities that extend gas and ion transport from tens of nanometers to the micrometer scale. By applying this design strategy, we achieved CO2 electroreduction on copper in 7 M potassium hydroxide electrolyte (pH ≈ 15) with an ethylene partial current density of 1.3 amperes per square centimeter at 45% cathodic energy efficiency. © 2020 American Association for the Advancement of Science. All rights reserved.
关键词carbon dioxideethylenepotassium hydroxidecarbon dioxidecatalystelectrodeelectrokinesisenergy efficiencygreenhouse gashydrophobicityionArticlecatalystcurrent densityelectrolysiselectron transportgas transporthydrophilicityhydrophobicityion transportparticle sizepriority journalreduction (chemistry)
语种英语
来源机构Science
文献类型期刊论文
条目标识符http://gcip.llas.ac.cn/handle/2XKMVOVA/133736
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García de Arquer F.P.,Dinh C.-T.,Ozden A.,et al. CO2 electrolysis to multicarbon products at activities greater than 1 A cm−2[J]. Science,2020,367(6478).
APA García de Arquer F.P..,Dinh C.-T..,Ozden A..,Wicks J..,McCallum C..,...&Sargent E.H..(2020).CO2 electrolysis to multicarbon products at activities greater than 1 A cm−2.,367(6478).
MLA García de Arquer F.P.,et al."CO2 electrolysis to multicarbon products at activities greater than 1 A cm−2".367.6478(2020).
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