Standing Carbon-Supported Trace Levels of Metal Derived from Covalent Organic Framework for Electrocatalysis
文献类型：期刊论文
| 作者 | Xu, Q; Zhang, H; Guo, Y; Qian, J; Yang, S; Luo, D; Gao, P; Wu, DK; Li, XP; Jiang, Z |
| 刊名 | SMALL
 |
| 出版日期 | 2019 |
| 页码 | - |
| 关键词 | OXYGEN REDUCTION REACTION ACTIVE-SITES CRYSTALLINE CATALYSTS ALKALINE EXCHANGE PLATFORM ORR |
| ISSN号 | 1613-6810 |
| DOI | 10.1002/smll.201905363 |
| 文献子类 | 期刊论文 |
| 英文摘要 | Single atom catalysts (SACs) are receiving increasing interests due to their high theoretical catalytic efficiency and intriguing physiochemical properties. However, most of the synthetic methodologies involve high-temperature treatment. This usually leads to limited control over the spatial distribution of metal sites and collapse of porous network that result in limited active site exposure. A strategy to construct SAC by using a covalent organic framework as the precursor is reported in this study. The as-prepared catalyst is mainly composed of standing carbon layers with the presence of edge-site hosted metal single atoms. Such structure configuration not only allows full site exposure but also endows the metal site with high intrinsic activity. With a trace amount of cobalt loading (0.17 wt%), the nanorice-shaped catalyst displays promising electrochemical activities toward catalyzing the oxygen reduction reaction in both alkaline and acidic medium. An ultrahigh mass activity of 838 A g(Co)(-1) at 0.9 V is achieved in the acidic electrolyte. This work suggests a new route to design SACs based on covalent organic framework for energy storage and conversion devices. |
| 语种 | 英语 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/32215]  |
| 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.Univ Chinese Acad Sci, 19 Yuquan Rd, Beijing 100049, Peoples R China; 2.Chinese Acad Sci, SARI, CAS Key Lab Low Carbon Convers Sci & Engn, Shanghai 201210, Peoples R China; 3.Chinese Acad Sci, Zhangjiang Lab, Shanghai Synchrotron Radiat Facil, Shanghai Adv Res Inst, Shanghai 201210, Peoples R China; 4.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201203, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xu, Q,Zhang, H,Guo, Y,et al. Standing Carbon-Supported Trace Levels of Metal Derived from Covalent Organic Framework for Electrocatalysis[J]. SMALL,2019:-. |
| APA | Xu, Q.,Zhang, H.,Guo, Y.,Qian, J.,Yang, S.,...&Sun, YH.(2019).Standing Carbon-Supported Trace Levels of Metal Derived from Covalent Organic Framework for Electrocatalysis.SMALL,-. |
| MLA | Xu, Q,et al."Standing Carbon-Supported Trace Levels of Metal Derived from Covalent Organic Framework for Electrocatalysis".SMALL (2019):-. |
入库方式： OAI收割
来源：上海应用物理研究所
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