Electrochemical promotion of catalysis over Pd nanoparticles for CO2 reduction

doi:10.1039/c6sc04966d

	Electrochemical promotion of catalysis over Pd nanoparticles for CO2 reduction
	Yang, Fan 1; Bao, Xinhe 1; Wang, Jianguo 2; Cai, Fan 1,3; Gao, Dunfeng 1; Zhou, Hu 2; Wang, Guoxiong 1; He, Ting 1,3; Gong, Huimin 1; Miao, Shu 1
刊名	CHEMICAL SCIENCE
	2017
卷号	8 期号:4 页码:2569-2573
ISSN号	2041-6520
DOI	10.1039/c6sc04966d
文献子类	Article
英文摘要	Electrochemical promotion of catalysis (EPOC) has been shown to accelerate the rate of many heterogeneous catalytic reactions; however, it has rarely been reported in low-temperature aqueous electrochemical reactions. Herein, we report a significant EPOC effect for the CO2 reduction to generate formate over Pd nanoparticles (NPs) in a 1 M KHCO3 aqueous solution. By applying a negative potential over differently-sized Pd NPs, the rate of formate production is greatly improved as compared to that at an open-circuit voltage, with a rate enhancement ratio ranging from 10 to 143. The thermocatalytic and electrocatalytic reduction of CO2 compete with each other and are promoted by the applied negative potential and H-2 in the feeds, respectively. Inspired by the EPOC effect, a composite electrode containing Pd/C and Pt/C catalysts on different sides of a carbon paper was constructed for catalyzing the CO2 reduction without adding H-2 to the feeds. Water electrolysis over Pt NPs generates H-2, which then effectively promotes formate production over Pd NPs.
WOS关键词	CARBON-DIOXIDE ; ELECTROCATALYTIC REDUCTION ; PALLADIUM CATALYSTS ; ROOM-TEMPERATURE ; AQUEOUS-SOLUTION ; IONIC LIQUID ; FORMIC-ACID ; HYDROGEN ; SURFACE ; FORMATE
WOS研究方向	Chemistry
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000397560500008
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/169460]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
通讯作者	Bao, Xinhe; Wang, Guoxiong
作者单位	1.Chinese Acad Sci, Dalian Inst Chem Phys, CAS Ctr Excellence Nanosci, State Key Lab Catalysis, Dalian 116023, Peoples R China 2.Zhejiang Univ Technol, Coll Chem Engn, Hangzhou 310032, Zhejiang, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100039, Peoples R China
推荐引用方式 GB/T 7714	Yang, Fan,Bao, Xinhe,Wang, Jianguo,et al. Electrochemical promotion of catalysis over Pd nanoparticles for CO2 reduction[J]. CHEMICAL SCIENCE,2017,8(4):2569-2573.
APA	Yang, Fan.,Bao, Xinhe.,Wang, Jianguo.,Cai, Fan.,Gao, Dunfeng.,...&Miao, Shu.(2017).Electrochemical promotion of catalysis over Pd nanoparticles for CO2 reduction.CHEMICAL SCIENCE,8(4),2569-2573.
MLA	Yang, Fan,et al."Electrochemical promotion of catalysis over Pd nanoparticles for CO2 reduction".CHEMICAL SCIENCE 8.4(2017):2569-2573.