Influence of Cu2+doping concentration on the catalytic activity of CuXCo3-xO4for rechargeable Li-O2batteries

doi:10.1039/c7ta03615a

	Influence of Cu2+doping concentration on the catalytic activity of CuXCo3-xO4for rechargeable Li-O2batteries
	He, Lewei 1,3; Wang, Youwei 2; Wang, Fan 1,3; Zhang, Sanpei 1,3; Wu, Xiangwei 1; Wen, Zhaoyin 1; Liu, Jianjun 2; Zhang, Wenqing 2
刊名	Journal of Materials Chemistry A
	2017
卷号	5 期号:35 页码:18569-18576
ISSN号	20507488
DOI	10.1039/c7ta03615a
英文摘要	The electrochemical performance of rechargeable lithium-oxygen (Li-O2) batteries relies on the catalysts used in the cathode to a great extent. Herein, a series of CuxCo3-xO4nanorods with different Cu2+concentrations was prepared by a convenient hydrothermal method. The corresponding structures and electrochemistries were further characterized in order to reveal the composition effect of catalyst on catalytic activity. Experimental characterization and theoretical calculations indicate that more Cu2+occupying Co2+positions and dispersing on the catalyst surface has an enhanced catalytic activity in terms of higher capacity, lower overpotential and better reversibility. This implies that suitable charge transfer from Li2O2to the catalyst plays an important role in improving the electrochemical performance of Li-O2batteries. The present study is helpful for designing a highly active catalyst by tuning the composition of the catalyst surface. © 2017 The Royal Society of Chemistry.
内容类型	期刊论文
源URL	[http://ir.sic.ac.cn/handle/331005/25795]
专题	中国科学院上海硅酸盐研究所
作者单位	1.CAS, Key Laboratory of Materials for Energy Conversion, Shanghai Institute of Ceramics, Chinese Academy of Science, Shanghai; 200050, China; 2.State Key Laboratory of High Performance Ceramics and Superfine Microstructures, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai; 200050, China; 3.University of Chinese Academy of Sciences, Beijing; 100049, China
推荐引用方式 GB/T 7714	He, Lewei,Wang, Youwei,Wang, Fan,et al. Influence of Cu2+doping concentration on the catalytic activity of CuXCo3-xO4for rechargeable Li-O2batteries[J]. Journal of Materials Chemistry A,2017,5(35):18569-18576.
APA	He, Lewei.,Wang, Youwei.,Wang, Fan.,Zhang, Sanpei.,Wu, Xiangwei.,...&Zhang, Wenqing.(2017).Influence of Cu2+doping concentration on the catalytic activity of CuXCo3-xO4for rechargeable Li-O2batteries.Journal of Materials Chemistry A,5(35),18569-18576.
MLA	He, Lewei,et al."Influence of Cu2+doping concentration on the catalytic activity of CuXCo3-xO4for rechargeable Li-O2batteries".Journal of Materials Chemistry A 5.35(2017):18569-18576.