Hollow n-doped carbon spheres with isolated cobalt single atomic sites: superior electrocatalysts for oxygen reduction
文献类型：期刊论文
| 作者 | Han, Yunhu1; Wang, Yang-Gang1; Chen, Wenxing1; Xu, Ruirui4; Zheng, Lirong2; Zhang, Jian1; Luo, Jun3; Shen, Rong-An1; Zhu, Youqi1; Cheong, Weng-Chon1 |
| 刊名 | Journal of the american chemical society
 |
| 出版日期 | 2017-12-06 |
| 卷号 | 139期号:48页码:17269-17272 |
| ISSN号 | 0002-7863 |
| DOI | 10.1021/jacs.7b10194 |
| 通讯作者 | Wang, dingsheng(wangdingsheng@mail.tsinghua.edu.cn) ; Li, yadong(ydli@mail.tsinghua.edu.cn) |
| 英文摘要 | The search for a low-cost, ultrastable, and highly efficient non-precious metal catalyst substitute for pt in the oxygen reduction reaction (orr) is extremely urgent, especially in acidic media. herein, we develop a template-assisted pyrolysis (tap) method to obtain a unique co catalyst with isolated single atomic sites anchored on hollow n-doped carbon spheres (isas-co/hncs). both the single sites and the hollow substrate endow the catalyst with excellent orr performance. the half-wave potential in acidic media approaches that of pt/c. experiments and density functional theory have verified that isolated co sites are the source for the high orr activity because they significantly increase the hydrogenation of oh* species. this tap method is also demonstrated to be effective in preparing a series of isas-m/hncs, which provides opportunities for discovering new catalysts. |
| WOS关键词 | CATALYSTS ; COORDINATION ; ALKALINE ; CELLS ; IRON |
| WOS研究方向 | Chemistry |
| WOS类目 | Chemistry, Multidisciplinary |
| 语种 | 英语 |
| 出版者 | AMER CHEMICAL SOC |
| WOS记录号 | WOS:000417669000016 |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2177824 |
| 专题 | 高能物理研究所 |
| 通讯作者 | Wang, Dingsheng; Li, Yadong |
| 作者单位 | 1.Tsinghua Univ, Dept Chem, Beijing 100084, Peoples R China 2.Chinese Acad Sci, Beijing Synchrotron Radiat Facil, Inst High Energy Phys, Beijing 100049, Peoples R China 3.Tianjin Univ Technol, Ctr Electron Microscopy, Tianjin 300384, Peoples R China 4.Shaanxi Normal Univ, Sch Chem & Chem Engn, Xian 710119, Shaanxi, Peoples R China |
| 推荐引用方式 GB/T 7714 | Han, Yunhu,Wang, Yang-Gang,Chen, Wenxing,et al. Hollow n-doped carbon spheres with isolated cobalt single atomic sites: superior electrocatalysts for oxygen reduction[J]. Journal of the american chemical society,2017,139(48):17269-17272. |
| APA | Han, Yunhu.,Wang, Yang-Gang.,Chen, Wenxing.,Xu, Ruirui.,Zheng, Lirong.,...&Li, Yadong.(2017).Hollow n-doped carbon spheres with isolated cobalt single atomic sites: superior electrocatalysts for oxygen reduction.Journal of the american chemical society,139(48),17269-17272. |
| MLA | Han, Yunhu,et al."Hollow n-doped carbon spheres with isolated cobalt single atomic sites: superior electrocatalysts for oxygen reduction".Journal of the american chemical society 139.48(2017):17269-17272. |
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来源：高能物理研究所
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