A Graphene Composite Material with Single Cobalt Active Sites: A Highly Efficient Counter Electrode for Dye-Sensitized Solar Cells
文献类型：期刊论文
| 作者 | Cui, Xiaoju2; Xiao, Jianping2; Wu, Yihui3; Du, Peipei1; Si, Rui1; Yang, Huaixin4; Tian, Huanfang4; Li, Jianqi4; Zhang, Wen-Hua3; Deng, Dehui2 |
| 刊名 | ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
 |
| 出版日期 | 2016-06-01 |
| 卷号 | 55期号:23页码:6707-6711 |
| 关键词 | Cobalt Composite Materials Counter Electrode Dye-sensitized Solar Cells Graphene |
| ISSN号 | 1433-7851 |
| DOI | 10.1002/anie.201602097 |
| 文献子类 | Article |
| 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. |
| WOS关键词 | OXYGEN REDUCTION ; CATALYSIS |
| WOS研究方向 | Chemistry |
| 语种 | 英语 |
| WOS记录号 | WOS:000377921300022 |
| 出版者 | WILEY-V C H VERLAG GMBH |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/170546]  |
| 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 |
| 通讯作者 | Zhang, Wen-Hua; Deng, Dehui |
| 作者单位 | 1.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai Synchrotron Radiat Facil, Shanghai 201204, Peoples R China 2.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 3.China Acad Engn Phys, Inst Chem Mat, Sichuan Res Ctr New Mat, 596 Yinhe Rd, Chengdu 610200, Peoples R China 4.Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cui, Xiaoju,Xiao, Jianping,Wu, Yihui,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, Xiaoju.,Xiao, Jianping.,Wu, Yihui.,Du, Peipei.,Si, Rui.,...&Bao, Xinhe.(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, Xiaoju,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. |
入库方式： OAI收割
来源：大连化学物理研究所
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