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 | Ji, SF; Zheng LR(郑黎荣) ; Li, YD; Wang, DS; Peng, Q; Chen, C; Gu, L; Wang, Y; Zheng, LR; Zhang, J
|
| 刊名 | ADVANCED MATERIALS
 |
| 出版日期 | 2018 |
| 卷号 | 30期号:15页码:1706508 |
| 关键词 | isolated-single-atomic-site oxygen reduction reaction polymer porous nitrogen-doped carbon |
| ISSN号 | 0935-9648 |
| DOI | 10.1002/adma.201706508 |
| 文献子类 | Article |
| 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. |
| 电子版国际标准刊号 | 1521-4095 |
| WOS关键词 | OXYGEN REDUCTION REACTION ; FREE ELECTROCATALYSTS ; COBALT ; GRAPHENE ; SPHERES ; OXIDE ; HYDROGENATION ; SELECTIVITY ; SURFACE |
| WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000430101200024 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/285828]  |
| 专题 | 高能物理研究所_多学科研究中心 高能物理研究所_实验物理中心 高能物理研究所_管理与技术支持 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Ji, SF,Zheng LR,Li, YD,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):1706508. |
| APA | Ji, SF.,郑黎荣.,Li, YD.,Wang, DS.,Peng, Q.,...&Han, AJ.(2018).A Polymer Encapsulation Strategy to Synthesize Porous Nitrogen-Doped Carbon-Nanosphere-Supported Metal Isolated-Single-Atomic-Site Catalysts.ADVANCED MATERIALS,30(15),1706508. |
| MLA | Ji, SF,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):1706508. |
入库方式： OAI收割
来源：高能物理研究所
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