Engineering Single-Atom Cobalt Catalysts toward Improved Electrocatalysis
文献类型：期刊论文
| 作者 | Wan, Gang1; Yu, Pengfei2; Chen, Hangrong; Wen, Jianguo; Sun, Cheng-jun; Zhou, Hua4; Zhang, Nian2; Li, Qianru1; Zhao, Wanpeng1; Xie, Bing6 |
| 刊名 | SMALL
 |
| 出版日期 | 2018 |
| 卷号 | 14期号:15 |
| 关键词 | electrocatalysis media dependence metal-adsorbate interactions selectivity single-atom dispersed catalysts |
| ISSN号 | 1613-6810 |
| DOI | 10.1002/smll.201704319 |
| 英文摘要 | The development of cost-effective catalysts to replace noble metal is attracting increasing interests in many fields of catalysis and energy, and intensive efforts are focused on the integration of transition-metal sites in carbon as noble-metal-free candidates. Recently, the discovery of single-atom dispersed catalyst (SAC) provides a new frontier in heterogeneous catalysis. However, the electrocatalytic application of SAC is still subject to several theoretical and experimental limitations. Further advances depend on a better design of SAC through optimizing its interaction with adsorbates during catalysis. Here, distinctive from previous studies, favorable 3d electronic occupation and enhanced metal-adsorbates interactions in single-atom centers via the construction of nonplanar coordination is achieved, which is confirmed by advanced X-ray spectroscopic and electrochemical studies. The as-designed atomically dispersed cobalt sites within nonplanar coordination show significantly improved catalytic activity and selectivity toward the oxygen reduction reaction, approaching the benchmark Pt-based catalysts. More importantly, the illustration of the active sites in SAC indicates metal-natured catalytic sites and a media-dependent catalytic pathway. Achieving structural and electronic engineering on SAC that promotes its catalytic performances provides a paradigm to bridge the gap between single-atom catalysts design and electrocatalytic applications. |
| 学科主题 | Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter |
| WOS记录号 | WOS:000430186600025 |
| 出版者 | WILEY-V C H VERLAG GMBH |
| 资助机构 | G.W. and P.Y. contributed equally to this work. This research was supported by the National Key Basic Research Program of China (2013CB933200), Shanghai International Cooperation project (16520710200), and China National Funds for Distinguished Young Scientists (51225202). This research used resources of the Advanced Photon Source and the Center for Nanoscale Materials, Office of Science user facilities, were supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. DE-AC02-06CH11357. C.S. is supported by the U.S. DOE under Contract No. DE-AC02-06CH11357, and the Canadian Light Source and its funding partners. G.W. acknowledges the support from the UCAS Joint PhD Training Program. G.W. thanks Dr. Xiaosong Liu from Shanghai Institute of Information Technology and Microsystem for valuable discussions on the Co L-edge NEXAFS results. T.L. is grateful for the support from Northern Illinois University. ; G.W. and P.Y. contributed equally to this work. This research was supported by the National Key Basic Research Program of China (2013CB933200), Shanghai International Cooperation project (16520710200), and China National Funds for Distinguished Young Scientists (51225202). This research used resources of the Advanced Photon Source and the Center for Nanoscale Materials, Office of Science user facilities, were supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. DE-AC02-06CH11357. C.S. is supported by the U.S. DOE under Contract No. DE-AC02-06CH11357, and the Canadian Light Source and its funding partners. G.W. acknowledges the support from the UCAS Joint PhD Training Program. G.W. thanks Dr. Xiaosong Liu from Shanghai Institute of Information Technology and Microsystem for valuable discussions on the Co L-edge NEXAFS results. T.L. is grateful for the support from Northern Illinois University. |
| 源URL | [http://ir.sic.ac.cn/handle/331005/25004]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 作者单位 | 1.Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, 1295 Dingxi RD, Shanghai 200050, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Shanghai Inst Microsyst & Informat Technol, 865 Changning RD, Shanghai 200000, Peoples R China 4.Argonne Natl Lab, Ctr Nanoscale Mat, 9700 S Cass Ave, Lemont, IL 60439 USA 5.Argonne Natl Lab, Xray Sci Div, Adv Photon Source, 9700 S Cass Ave, Lemont, IL 60439 USA 6.Northern Illinois Univ, Dept Chem & Biochem, 1425 W Lincoln Hwy, De Kalb, IL 60115 USA 7.IIT, Dept Chem, 3300 S Fed St, Chicago, IL 60616 USA |
| 推荐引用方式 GB/T 7714 | Wan, Gang,Yu, Pengfei,Chen, Hangrong,et al. Engineering Single-Atom Cobalt Catalysts toward Improved Electrocatalysis[J]. SMALL,2018,14(15). |
| APA | Wan, Gang.,Yu, Pengfei.,Chen, Hangrong.,Wen, Jianguo.,Sun, Cheng-jun.,...&Shi, Jianlin.(2018).Engineering Single-Atom Cobalt Catalysts toward Improved Electrocatalysis.SMALL,14(15). |
| MLA | Wan, Gang,et al."Engineering Single-Atom Cobalt Catalysts toward Improved Electrocatalysis".SMALL 14.15(2018). |
入库方式： OAI收割
来源：上海硅酸盐研究所
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