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CAS OpenIR  > 中科院上海应用物理研究所2011-2017年  > 期刊论文
题名:
A Graphene Composite Material with Single Cobalt Active Sites: A Highly Efficient Counter Electrode for Dye-Sensitized Solar Cells
作者: Cui, XJ; Xiao, JP; Wu, YH; Du, PP; Si, R; Yang, HX; Tian, HF; Li, JQ; Zhang, WH; Deng, DH; Bao, XH
刊名: ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
出版日期: 2016
卷号: 55, 期号:23, 页码:6707—6711
关键词: OXYGEN REDUCTION ; CATALYSIS
DOI: 10.1002/anie.201602097
通讯作者: Deng, DH (reprint author), Chinese Acad Sci, Dalian Inst Chem Phys, Collaborat Innovat Ctr Chem Energy Mat, State Key Lab Catalysis, Zhongshan Rd 457, Dalian 116023, Peoples R China. ; Zhang, WH (reprint author), China Acad Engn Phys, Inst Chem Mat, Sichuan Res Ctr New Mat, 596 Yinhe Rd, Chengdu 610200, Peoples R China.
文章类型: 期刊文献
英文摘要: The design of catalysts that are both highly active and stable is always challenging. Herein, we report that the incorporation of single metal active sites attached to the nitrogen atoms in the basal plane of graphene leads to composite materials with superior activity and stability when used as counter electrodes in dye-sensitized solar cells (DSSCs). A series of composite materials based on different metals (Mn, Fe, Co, Ni, and Cu) were synthesized and characterized. Electrochemical measurements revealed that CoN4/GN is a highly active and stable counter electrode for the interconversion of the redox couple I-/I-3(-). DFT calculations revealed that the superior properties of CoN4/GN are due to the appropriate adsorption energy of iodine on the confined Co sites, leading to a good balance between adsorption and desorption processes. Its superior electrochemical performance was further confirmed by fabricating DSSCs with CoN4/GN electrodes, which displayed a better power conversion efficiency than the Pt counterpart.
收录类别: SCI
语种: 英语
WOS记录号: WOS:000377921300022
ISSN号: 1433-7851
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.sinap.ac.cn/handle/331007/25634
Appears in Collections:中科院上海应用物理研究所2011-2017年_期刊论文

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Recommended Citation:
Cui, XJ,Xiao, JP,Wu, YH,et al. A Graphene Composite Material with Single Cobalt Active Sites: A Highly Efficient Counter Electrode for Dye-Sensitized Solar Cells[J]. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION,2016-01-01,55(23):6707—6711.
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