Cobalt single-atoms anchored on porphyrinic triazine-based frameworks as bifunctional electrocatalysts for oxygen reduction and hydrogen evolution reactions
文献类型：期刊论文
| 作者 | Yi, JD; Xu, R; Chai, GL; Zhang, T; Zang, KT; Nan, B; Lin, H; Liang, YL; Lv, JQ; Luo, J |
| 刊名 | JOURNAL OF MATERIALS CHEMISTRY A
 |
| 出版日期 | 2019 |
| 卷号 | 7期号:3页码:1252—1259 |
| 关键词 | ACTIVE-SITES EFFICIENT ELECTROCATALYSTS POROUS CARBON LEVEL INSIGHT CATALYSTS GRAPHENE IRON PERFORMANCE IDENTIFICATION NANOPARTICLES |
| ISSN号 | 2050-7488 |
| DOI | 10.1039/c8ta09490j |
| 文献子类 | 期刊论文 |
| 英文摘要 | Designing and fabrication of highly active single-atom catalysts (SACs) with maximized atomic efficiency is highly desirable but still remains a great challenge. Herein, highly active and stable cobalt single-atoms with a Co-N-4 moiety were uniformly anchored on a porous porphyrinic triazine-based framework (CoSAs/PTF) by a simple ionothermal method. Due to the abundant single-atom Co-N-4 species, the hierarchical porous structure and the good conductivity, the resultant catalyst is highly active for the electrocatalytic oxygen reduction reaction (ORR) and hydrogen evolution reaction (HER). For the ORR, a more positive half-wave potential of 0.808 V (vs. RHE) was achieved, compared with commercial benchmark Pt/C (0.806 V). Furthermore, a small onset potential of 21 mV and a low Tafel slope of 50 mV per decade were obtained for the HER. The porphyrin-like structure was found to stabilize the CoSAs effectively, thus leading to long-term durability and a remarkable methanol-tolerant behavior. This bifunctional single-atom catalyst might be a promising candidate to replace Pt-based electrocatalysts in electrolysers and fuel cells. |
| 语种 | 英语 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/31513]  |
| 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.Chinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, 155 Yangqiao Rd West, Fuzhou 350002, Peoples R China; 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China; 3.Tianjin Univ Technol, Sch Mat, Ctr Electron Microscopy, Inst New Energy Mat & Low Carbon Technol, Tianjin 300384, Peoples R China; 4.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai Synchrotron Radiat Facil, Shanghai 201204, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yi, JD,Xu, R,Chai, GL,et al. Cobalt single-atoms anchored on porphyrinic triazine-based frameworks as bifunctional electrocatalysts for oxygen reduction and hydrogen evolution reactions[J]. JOURNAL OF MATERIALS CHEMISTRY A,2019,7(3):1252—1259. |
| APA | Yi, JD.,Xu, R.,Chai, GL.,Zhang, T.,Zang, KT.,...&Cao, R.(2019).Cobalt single-atoms anchored on porphyrinic triazine-based frameworks as bifunctional electrocatalysts for oxygen reduction and hydrogen evolution reactions.JOURNAL OF MATERIALS CHEMISTRY A,7(3),1252—1259. |
| MLA | Yi, JD,et al."Cobalt single-atoms anchored on porphyrinic triazine-based frameworks as bifunctional electrocatalysts for oxygen reduction and hydrogen evolution reactions".JOURNAL OF MATERIALS CHEMISTRY A 7.3(2019):1252—1259. |
入库方式： OAI收割
来源：上海应用物理研究所
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