A Polymer Encapsulation Strategy to Synthesize Porous Nitrogen-Doped Carbon-Nanosphere-Supported Metal Isolated-Single-Atomic-Site Catalysts
文献类型：期刊论文
| 作者 | Han, AJ; Chen, WX; Zhang, SL; Zhang, ML; Han, YH; Zhang, J; Ji, SF; Zheng, LR; Wang, Y; Gu, L |
| 刊名 | ADVANCED MATERIALS
 |
| 出版日期 | 2018 |
| 卷号 | 30期号:15页码:- |
| 关键词 | Oxygen Reduction Reaction Free Electrocatalysts Cobalt Graphene Spheres Oxide Hydrogenation Selectivity Surface |
| ISSN号 | 0935-9648 |
| DOI | 10.1002/adma.201706508 |
| 文献子类 | 期刊论文 |
| 英文摘要 | A novel polymer encapsulation strategy to synthesize metal isolated-single-atomic-site (ISAS) catalysts supported by porous nitrogen-doped carbon nanospheres is reported. First, metal precursors are encapsulated in situ by polymers through polymerization; then, metal ISASs are created within the polymer-derived p-CN nanospheres by controlled pyrolysis at high temperature (200-900 degrees C). Transmission electron microscopy and N-2 sorption results reveal this material to exhibit a nanospheric morphology, a high surface area (approximate to 380 m(2) g(-1)), and a porous structure (with micropores and mesopores). Characterization by aberration-corrected high-angle annular dark-field scanning transmission electron microscopy and X-ray absorption fine structure confirms the metal to be present as metal ISASs. This methodology is applicable to both noble and nonprecious metals (M-ISAS/p-CN, M = Co, Ni, Cu, Mn, Pd, etc.). In particular, the Co-ISAS/p-CN nanospheres obtained using this method show comparable (E-1/2 = 0.838 V) electrochemical oxygen reduction activity to commercial Pt/C with 20 wt% Pt loading (E-1/2 = 0.834 V) in alkaline media, superior methanol tolerance, and outstanding stability, even after 5000 cycles. |
| 语种 | 英语 |
| WOS记录号 | WOS:000430101200024 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/28910]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 作者单位 | 1.Han, AJ 2.Chen, WX 3.Zhang, SL 4.Zhang, ML 5.Han, YH 6.Zhang, J 7.Ji, SF 8.Zheng, LR 9.Wang, Y 10.Gu, L |
| 推荐引用方式 GB/T 7714 | Han, AJ,Chen, WX,Zhang, SL,et al. A Polymer Encapsulation Strategy to Synthesize Porous Nitrogen-Doped Carbon-Nanosphere-Supported Metal Isolated-Single-Atomic-Site Catalysts[J]. ADVANCED MATERIALS,2018,30(15):-. |
| APA | Han, AJ.,Chen, WX.,Zhang, SL.,Zhang, ML.,Han, YH.,...&Li, YD.(2018).A Polymer Encapsulation Strategy to Synthesize Porous Nitrogen-Doped Carbon-Nanosphere-Supported Metal Isolated-Single-Atomic-Site Catalysts.ADVANCED MATERIALS,30(15),-. |
| MLA | Han, AJ,et al."A Polymer Encapsulation Strategy to Synthesize Porous Nitrogen-Doped Carbon-Nanosphere-Supported Metal Isolated-Single-Atomic-Site Catalysts".ADVANCED MATERIALS 30.15(2018):-. |
入库方式： OAI收割
来源：上海应用物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。