Knowledge Management System Of Shanghai Institute of Applied Physics, CAS
| A Graphene Composite Material with Single Cobalt Active Sites: A Highly Efficient Counter Electrode for Dye-Sensitized Solar Cells | |
| Cui, XJ; Xiao, JP; Wu, YH; Du, PP; Si, R; Yang, HX; Tian, HF; Li, JQ; Zhang, WH; Deng, DH; Bao, XH; 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. | |
| 2016 | |
| Source Publication | ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
 |
| ISSN | 1433-7851 |
| Volume | 55Issue:23Pages:6707—6711 |
| Subtype | 期刊文献 |
| Abstract | 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. |
| Keyword | Oxygen Reduction Catalysis |
| DOI | 10.1002/anie.201602097 |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:000377921300022 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.sinap.ac.cn/handle/331007/25634 |
| Collection | 中科院上海应用物理研究所2011-2018年 |
| Corresponding Author | 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. |
| Recommended Citation GB/T 7714 | 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,2016,55(23):6707—6711. |
| APA | Cui, XJ.,Xiao, JP.,Wu, YH.,Du, PP.,Si, R.,...&Zhang, WH .(2016).A Graphene Composite Material with Single Cobalt Active Sites: A Highly Efficient Counter Electrode for Dye-Sensitized Solar Cells.ANGEWANDTE CHEMIE-INTERNATIONAL EDITION,55(23),6707—6711. |
| MLA | Cui, XJ,et al."A Graphene Composite Material with Single Cobalt Active Sites: A Highly Efficient Counter Electrode for Dye-Sensitized Solar Cells".ANGEWANDTE CHEMIE-INTERNATIONAL EDITION 55.23(2016):6707—6711. |
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| A Graphene Composite（1224KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Download | |
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