Highly doped and exposed Cu(I)-N active sites within graphene towards efficient oxygen reduction for zinc-air batteries

	Highly doped and exposed Cu(I)-N active sites within graphene towards efficient oxygen reduction for zinc-air batteries
	Xie, Songhai 3; Si, Rui 4; Yang, Fan 1; Miao, Shu 1; Guo, Xiaoguang 1; Bao, Xinhe 1; Wang, Guoxiong 1; Wu, Haihua 1,2; Li, Haobo 1,2; Zhao, Xinfei 1,2
刊名	Energy & Environmental Science
	2016
卷号	9 期号:12 页码:3736-3745
英文摘要	A coordinatively unsaturated copper-nitrogen architecture in copper metalloenzymes is essential for its capability to catalyze the oxygen reduction reaction (ORR). However, the stabilization of analogous active sites in realistic catalysts remains a key challenge. Herein, we report a facile route to synthesize highly doped and exposed copper(I)-nitrogen (Cu(I)-N) active sites within graphene (Cu-N(C)C) by pyrolysis of coordinatively saturated copper phthalocyanine, which is inert for the ORR, together with dicyandiamide. Cu(I)-N is identified as the active site for catalyzing the ORR by combining physicochemical and electro-chemical studies, as well as density function theory calculations. The graphene matrix could stabilize the high density of Cu(I)-N active sites with a copper loading higher than 8.5 wt%, while acting as the electron-conducting path. The ORR activity increases with the specific surface area of the Cu-N(C)C catalysts due to more exposed Cu(I)-N active sites. The optimum Cu-N(C)C catalyst demonstrates a high ORR activity and stability, as well as an excellent performance and stability in zinc-air batteries with ultralow catalyst loading.
WOS标题词	Science & Technology ; Physical Sciences ; Technology ; Life Sciences & Biomedicine
类目[WOS]	Chemistry, Multidisciplinary ; Energy & Fuels ; Engineering, Chemical ; Environmental Sciences
研究领域[WOS]	Chemistry ; Energy & Fuels ; Engineering ; Environmental Sciences & Ecology
关键词[WOS]	ATOMICALLY DISPERSED PALLADIUM ; COPPER-DIOXYGEN COMPLEXES ; CYTOCHROME-C-OXIDASE ; ALKALINE MEDIA ; CATHODE CATALYST ; MANGANESE OXIDES ; WATER OXIDATION ; CARBON-BLACK ; FUEL-CELLS ; NITROGEN
收录类别	SCI
语种	英语
WOS记录号	WOS:000392915500014
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/151888]
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
作者单位	1.Chinese Acad Sci, Dalian Inst Chem Phys, CAS Ctr Excellence Nanosci, Dalian Natl Lab Clean Energy,State Key Lab Cataly, Dalian 116023, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100039, Peoples R China 3.Fudan Univ, Shanghai Key Lab Mol Catalysis & Innovat Mat, Dept Chem, Shanghai 200433, Peoples R China 4.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai Synchrotron Radiat Facil, Shanghai, Peoples R China
推荐引用方式 GB/T 7714	Xie, Songhai,Si, Rui,Yang, Fan,et al. Highly doped and exposed Cu(I)-N active sites within graphene towards efficient oxygen reduction for zinc-air batteries[J]. Energy & Environmental Science,2016,9(12):3736-3745.
APA	Xie, Songhai.,Si, Rui.,Yang, Fan.,Miao, Shu.,Guo, Xiaoguang.,...&Xiao, Jianping.(2016).Highly doped and exposed Cu(I)-N active sites within graphene towards efficient oxygen reduction for zinc-air batteries.Energy & Environmental Science,9(12),3736-3745.
MLA	Xie, Songhai,et al."Highly doped and exposed Cu(I)-N active sites within graphene towards efficient oxygen reduction for zinc-air batteries".Energy & Environmental Science 9.12(2016):3736-3745.