Fabricating Single-Atom Catalysts from Chelating Metal in Open Frameworks
文献类型：期刊论文
| 作者 | Lin, YC; Liu, PY; Velasco, E; Yao, G; Tian, ZQ; Zhang, LJ; Chen, L |
| 刊名 | ADVANCED MATERIALS
 |
| 出版日期 | 2019 |
| 卷号 | 31期号:18页码:— |
| 关键词 | OXYGEN REDUCTION ORGANIC FRAMEWORKS IRON NANOPARTICLES OXIDATION SPECTRA XANES WATER CU |
| ISSN号 | 0935-9648 |
| DOI | 10.1002/adma.201808193 |
| 文献子类 | 期刊论文 |
| 英文摘要 | In the present study, a highly efficient strategy is reported using open framework platforms with abundant chelating ligands to fabricate a series of stable metal single-atom catalysts (SACS). Here, the metal ions are initially anchored onto the active bipyridine sites through postsynthetic modification, followed by pyrolysis and acid leaching. The resulting single metal atoms are uniformly distributed on a nitrogen-doped carbon (N-C) matrix. Interestingly, each metal atom is found to be coordinated with five N atoms, in contrast to the average coordination number of four as previously reported. The as-prepared Fe SAC/N-C catalyst exhibits excellent oxygen reduction reaction (ORR) activity (with a half-wave potential of 0.89 V), outstanding stability, and good methanol tolerance. The density functional calculations reveal that the coordinated pyridine can favorably modulate the interaction strength of oxygen on the Fe ion and thus improve the ORR activity. More importantly, it is demonstrated that this strategy can be successfully extended to the preparation of other transition metal SACs, simply by altering the metal precursors used in the metalation step. |
| 语种 | 英语 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/31625]  |
| 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, Ningbo Inst Mat Technol & Engn, Ningbo 315201, Zhejiang, Peoples R China; 2.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China 3.Chinese Acad Sci, Fujian Inst Innovat, Fuzhou 350002, Fujian, Peoples R China; 4.Nanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Jiangsu, Peoples R China; 5.Nanjing Univ, Sch Phys, Collaborat Innovat Ctr Adv Microstruct, Nanjing 210093, Jiangsu, Peoples R China; 6.Rutgers State Univ, Dept Chem & Chem Biol, Piscataway, NJ 08854 USA; 7.Jingdezhen Ceram Inst, Sch Mat Sci & Engn, Jingdezhen 333403, Jiangxi, Peoples R China; 8.Univ Chinese Acad Sci, Dept Mat Sci & Optoelect Technol, Beijing 100049, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Lin, YC,Liu, PY,Velasco, E,et al. Fabricating Single-Atom Catalysts from Chelating Metal in Open Frameworks[J]. ADVANCED MATERIALS,2019,31(18):—. |
| APA | Lin, YC.,Liu, PY.,Velasco, E.,Yao, G.,Tian, ZQ.,...&Chen, L.(2019).Fabricating Single-Atom Catalysts from Chelating Metal in Open Frameworks.ADVANCED MATERIALS,31(18),—. |
| MLA | Lin, YC,et al."Fabricating Single-Atom Catalysts from Chelating Metal in Open Frameworks".ADVANCED MATERIALS 31.18(2019):—. |
入库方式： OAI收割
来源：上海应用物理研究所
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