Key Single-Atom Electrocatalysis in Metal—Organic Framework (MOF)-Derived Bifunctional Catalysts
文献类型：期刊论文
| 作者 | Zhao, Wanpeng1,2; Wan, Gang1,2; Peng, Chunlei1,2; Sheng, Huaping3; Wen, Jianguo3; Chen, Hangrong1 |
| 刊名 | ChemSusChem
 |
| 出版日期 | 2018 |
| ISSN号 | 18645631 |
| DOI | 10.1002/cssc.201801473 |
| 英文摘要 | Metal–organic framework (MOF)-derived materials have attracted increasing interest and show promising catalytic performances in many fields. Intensive efforts have been focused on the structure design and metal-site integration in MOF-derived catalysts. However, the key catalytic processes related with the metal sites in MOF-derived catalysts that dominate the electrocatalytic performance still remain obscure. Herein, we show a neglected but critical issue in the pyrolytic synthesis of MOF-derived catalysts: the coupled evolution of dual sites, that is, metallic sites and single-atom metal sites. The identification of active sites of single-atom sites from the visible particles has been elucidated through the combined X-ray spectroscopic, electron microscopic, and electrochemical studies. Interestingly, after a total removal of metallic cobalt sites, catalysts with purified single-atom metal sites show no faltering activity for either the oxygen reduction reaction (ORR) or hydrogen evolution reaction (HER), while significantly enhanced ORR selectivity is achieved; this reveals the dominant activity and selectivity contribution from single-atom electrocatalysis. The insight of the coupled evolution of dual sites and the as-demonstrated dual-site decoupling strategies open up a new routine for the design and synthesis of MOF-derived catalysts with the optimized single-atom electrocatalysis towards various electrochemical reactions. © 2018 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim |
| 出版者 | Wiley-VCH Verlag |
| 源URL | [http://ir.sic.ac.cn/handle/331005/25296]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 作者单位 | 1.State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai; 200050, China; 2.University of Chinese Academy of Sciences, Beijing; 100049, China; 3.Center for Nanoscale Materials, Argonne National Laboratory, 9700 S. Cass Avenue, Lemont; IL; 60439, United States |
| 推荐引用方式 GB/T 7714 | Zhao, Wanpeng,Wan, Gang,Peng, Chunlei,et al. Key Single-Atom Electrocatalysis in Metal—Organic Framework (MOF)-Derived Bifunctional Catalysts[J]. ChemSusChem,2018. |
| APA | Zhao, Wanpeng,Wan, Gang,Peng, Chunlei,Sheng, Huaping,Wen, Jianguo,&Chen, Hangrong.(2018).Key Single-Atom Electrocatalysis in Metal—Organic Framework (MOF)-Derived Bifunctional Catalysts.ChemSusChem. |
| MLA | Zhao, Wanpeng,et al."Key Single-Atom Electrocatalysis in Metal—Organic Framework (MOF)-Derived Bifunctional Catalysts".ChemSusChem (2018). |
入库方式： OAI收割
来源：上海硅酸盐研究所
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