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	Selective co2 electroreduction over an oxidederived gallium catalyst
	Yan, Chengcheng1,2,3; Lin, Long1,2,3; Gao, Dunfeng1,2; Wang, Guoxiong1,2; Bao, Xinhe1,2
刊名	Journal of materials chemistry a
	2018-10-28
卷号	6期号:40页码:19743-19749
ISSN号	2050-7488
DOI	10.1039/c8ta08613c
通讯作者	Wang, guoxiong(wanggx@dicp.ac.cn) ; Bao, xinhe(xhbao@dicp.ac.cn)
英文摘要	The electrochemical co2 reduction reaction (co2rr) powered by renewable electricity has emerged as a promising approach to alleviate global warming and energy depletion simultaneously. notably, efficient catalysts containing earth-abundant elements to achieve high co2rr performance are in great demand for future applications. herein, carbon-supported gallia gel nanoparticles were synthesized by precipitating gallium nitrate on carbon black in an ethanolic ammonia solution. nano-sized gallia nanoparticles uniformly dispersed on the carbon support achieved a maximum co faradaic efficiency of 77.0% at -0.71 v vs. the reversible hydrogen electrode (rhe) in co2-saturated 0.1 m khco3 solution, showing a dramatic improvement compared to a bulk ga electrode with only 24.2% co faradaic efficiency at -0.80 v vs. rhe. x-ray photoelectron spectroscopy measurements revealed that surface ga3+ species were reduced to metallic ga when subjected to a negative potential during the co2rr, indicative of the formation of oxide-derived active gallium sites. control experiments further highlighted the necessity of close coalescence between the nano-sized gallia particles and the conductive carbon support. the present study underscores the feasibility of improving the co2rr performance of ga-related materials through nanostructuring of oxide-derived gallium catalysts.
WOS关键词	ELECTROCHEMICAL REDUCTION ; CARBON-DIOXIDE ; ELECTROCATALYTIC REDUCTION ; AU NANOPARTICLES ; METAL-ELECTRODES ; CU ELECTRODES ; SPECTROSCOPY ; CONVERSION
WOS研究方向	Chemistry ; Energy & Fuels ; Materials Science
WOS类目	Chemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000448413100047
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2373128
专题	大连化学物理研究所
通讯作者	Wang, Guoxiong; Bao, Xinhe
作者单位	1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100039, Peoples R China
推荐引用方式 GB/T 7714	Yan, Chengcheng,Lin, Long,Gao, Dunfeng,et al. Selective co2 electroreduction over an oxidederived gallium catalyst[J]. Journal of materials chemistry a,2018,6(40):19743-19749.
APA	Yan, Chengcheng,Lin, Long,Gao, Dunfeng,Wang, Guoxiong,&Bao, Xinhe.(2018).Selective co2 electroreduction over an oxidederived gallium catalyst.Journal of materials chemistry a,6(40),19743-19749.
MLA	Yan, Chengcheng,et al."Selective co2 electroreduction over an oxidederived gallium catalyst".Journal of materials chemistry a 6.40(2018):19743-19749.

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