气候变化领域集成服务门户(CCPortal): CO2 electrolysis to multicarbon products at activities greater than 1 A cm−2

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DOI	10.1126/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
ISSN	0036-8075
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.
英文关键词	carbon dioxide; ethylene; potassium hydroxide; carbon dioxide; catalyst; electrode; electrokinesis; energy efficiency; greenhouse gas; hydrophobicity; ion; Article; catalyst; current density; electrolysis; electron transport; gas transport; hydrophilicity; hydrophobicity; ion transport; particle size; priority journal; reduction (chemistry)
语种	英语
来源期刊	Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/243777
作者单位	Department of Electrical and Computer Engineering, University of Toronto, 35 St. George St., Toronto, ON M5S 1A4, Canada; Department of Mechanical and Industrial Engineering, University of Toronto, 5 King’s College Rd., Toronto, ON M5S 3G8, Canada; Department of Materials Science and Engineering (MSE), University of Toronto, 184 College St., Toronto, ON M5S 3E4, Canada; Materials Science and Engineering Division, National Institute of Standards and Technology (NIST), Gaithersburg, MD 20899, United States
推荐引用方式 GB/T 7714	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],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.Science,367(6478).
MLA	García de Arquer F.P.,et al."CO2 electrolysis to multicarbon products at activities greater than 1 A cm−2".Science 367.6478(2020).