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Highly doped and exposed Cu(I)-N active sites within graphene towards efficient oxygen reduction for zinc-air batteries
Wu, Haihua1,2; Li, Haobo1,2; Zhao, Xinfei1,2; Liu, Qingfei1,2; Wang, Jing1; Xiao, Jianping1; Xie, Songhai3; Si, Rui4; Yang, Fan1; Miao, Shu1; Guo, Xiaoguang1; Wang, Guoxiong1; Bao, Xinhe1
Source PublicationEnergy & Environmental Science
2016
DOI10.1039/c6ee01867j
Volume9Issue:12Pages:3736-3745
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology ; Life Sciences & Biomedicine
WOS SubjectChemistry, Multidisciplinary ; Energy & Fuels ; Engineering, Chemical ; Environmental Sciences
WOS Research AreaChemistry ; Energy & Fuels ; Engineering ; Environmental Sciences & Ecology
WOS KeywordATOMICALLY DISPERSED PALLADIUM ; COPPER-DIOXYGEN COMPLEXES ; CYTOCHROME-C-OXIDASE ; ALKALINE MEDIA ; CATHODE CATALYST ; MANGANESE OXIDES ; WATER OXIDATION ; CARBON-BLACK ; FUEL-CELLS ; NITROGEN
AbstractA 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.
Language英语
WOS IDWOS:000392915500014
Citation statistics
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/151888
Collection中国科学院大连化学物理研究所
Affiliation1.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
Recommended Citation
GB/T 7714
Wu, Haihua,Li, Haobo,Zhao, Xinfei,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 Wu, Haihua.,Li, Haobo.,Zhao, Xinfei.,Liu, Qingfei.,Wang, Jing.,...&Bao, Xinhe.(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 Wu, Haihua,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.
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