气候变化领域集成服务门户(CCPortal): Electrochemical CO2reduction to methane with remarkably high Faradaic efficiency in the presence of a proton permeable membrane

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DOI	10.1039/d0ee02189j
	Electrochemical CO2reduction to methane with remarkably high Faradaic efficiency in the presence of a proton permeable membrane
	Pan H.; Barile C.J.
发表日期	2020
ISSN	1754-5692
起始页码	3567
结束页码	3578
卷号	13 期号:10
英文摘要	Nafion is a widely used fluoropolymer that is often mixed with electrocatalysts to facilitate proton transport. In contrast to these Nafion-catalyst composites, this work studies electrodes covered by Nafion overlayers for the CO2 reduction reaction. By varying the thickness, substrates, and voltage, we perform a detailed study of the effect of Nafion overlayers on metal and carbon mesh electrodes for CO2 reduction. Depending on the thickness of the Nafion membrane, CO2 reduction occurs at either the polymer-electrolyte interface or electrode-polymer interface. A Nafion overlayer of 15 µm on a Cu electrode enables an extraordinarily high yield of CH4 production (88% Faradaic efficiency) at a low overpotential (540 mV) via the stabilization of metal-bound CO intermediates. To the best of our knowledge, this yield is the highest for electrocatalytic CO2 reduction to CH4 production at room temperature reported. © The Royal Society of Chemistry.
语种	英语
scopus关键词	Carbon dioxide; Efficiency; Electrocatalysts; Electrodes; Reduction; Catalyst composites; Electrocatalytic; Faradaic efficiencies; Nafion membrane; Permeable membranes; Polymer electrolyte; Polymer interfaces; Proton transport; Polyelectrolytes
来源期刊	Energy and Environmental Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/162707
作者单位	Department of Chemistry, University of Nevada, Reno, 89557, United States
推荐引用方式 GB/T 7714	Pan H.,Barile C.J.. Electrochemical CO2reduction to methane with remarkably high Faradaic efficiency in the presence of a proton permeable membrane[J],2020,13(10).
APA	Pan H.,&Barile C.J..(2020).Electrochemical CO2reduction to methane with remarkably high Faradaic efficiency in the presence of a proton permeable membrane.Energy and Environmental Science,13(10).
MLA	Pan H.,et al."Electrochemical CO2reduction to methane with remarkably high Faradaic efficiency in the presence of a proton permeable membrane".Energy and Environmental Science 13.10(2020).