Highly selective palladium-copper bimetallic electrocatalysts for the electrochemical reduction of CO2 to CO

doi:10.1016/j.nanocn.2016.06.035

	Highly selective palladium-copper bimetallic electrocatalysts for the electrochemical reduction of CO2 to CO
	Zhao, Bo 2; Cai, Fan 1; Lin, Lili 2; Tang, Pei 2; Wang, Guoxiong 1; Zhai, Peng 2; Bao, Xinhe 1; Ma, Ding 2; Yin, Zhen 3; Gao, Dunfeng 1
刊名	NANO ENERGY
	2016-09-01
卷号	27 页码:35-43
关键词	Co2 Conversion Electrocatalysis Bimetallic Nanocatalysts Pd-based Nanoparticles
ISSN号	2211-2855
DOI	10.1016/j.nanocn.2016.06.035
文献子类	Article
英文摘要	Selective and efficient conversion of carbon dioxide (CO2) to a reusable form of carbon via the electrochemical reduction of CO2 has attracted much attention recently, as it is a promising approach for the storage of renewable energy. Herein, we synthesize palladium-copper bimetallic nanoparticles with different compositions, which serve as a well-defined platform to understand their fundamental catalytic activity in CO2 reduction. Among PdCu/C and Pd/C catalysts tested, Pd85Cu15/C catalyst shows the highest CO Faradaic efficiency of 86%, CO current density of 6.9 mA cm(-2) and mass activity for CO production of 24.5 A g(-1) at 0.89 V vs. RHE in CO2-saturated 0.1 M KHCO3 solution, which is about 5 times, 8 times and 2.2 times higher than Pd/C catalyst, respectively. It was suggested from EXAFS and CO TPD-MS studies that the highly selective CO production on Pd85Cu15/C catalyst is due to the presence of an optimum ratio of the copper element and low-coordination sites over monometallic Pd active for H-2 evolution with low overpotential. We believe that controllable size and composition for the bimetallic nanoparticles are critical to the CO2 reduction activity enhancement and high CO Faradaic efficiency. The insights gained through this work may shed light in a foundation for designing efficient catalysts for electrochemical reduction of CO2. (C) 2016 Elsevier Ltd. All rights reserved.
WOS关键词	HYDROGEN-STORING MATERIALS ; CARBON-DIOXIDE ; ADSORPTION PROPERTIES ; METAL-ELECTRODES ; PD NANOPARTICLES ; CONVERSION ; SURFACES ; METHANOL ; HYDROCARBONS ; PDCU(111)
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000384910500005
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/169868]
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	Wang, Guoxiong; Ma, Ding
作者单位	1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, CAS Ctr Excellence Nanosci, Dalian 116023, Peoples R China 2.Peking Univ, Beijing Natl Lab Mol Sci, Coll Chem & Mol Engn, Beijing 100871, Peoples R China 3.Tianjin Polytech Univ, Dept Chem Engn, State Key Lab Separat Membranes & Membrane Proc, Tianjin 300387, Peoples R China
推荐引用方式 GB/T 7714	Zhao, Bo,Cai, Fan,Lin, Lili,et al. Highly selective palladium-copper bimetallic electrocatalysts for the electrochemical reduction of CO2 to CO[J]. NANO ENERGY,2016,27:35-43.
APA	Zhao, Bo.,Cai, Fan.,Lin, Lili.,Tang, Pei.,Wang, Guoxiong.,...&Yao, Siyu.(2016).Highly selective palladium-copper bimetallic electrocatalysts for the electrochemical reduction of CO2 to CO.NANO ENERGY,27,35-43.
MLA	Zhao, Bo,et al."Highly selective palladium-copper bimetallic electrocatalysts for the electrochemical reduction of CO2 to CO".NANO ENERGY 27(2016):35-43.