Rational Design of Atomic Layers of Pt Anchored on Mo2C Nanorods for Efficient Hydrogen Evolution over a Wide pH Range
文献类型：期刊论文
| 作者 | Qiu, Y; Wen, ZL; Jiang, CR; Wu, XJ; Si, R; Bao, J; Zhang, QH; Gu, L; Tang, JW; Guo, XH |
| 刊名 | SMALL
 |
| 出版日期 | 2019 |
| 卷号 | 15期号:14页码:— |
| ISSN号 | 1613-6810 |
| 关键词 | TRANSITION-METAL CARBIDES MOLYBDENUM-CARBIDE LOW-COST HIGHLY EFFICIENT DOPED CARBON ELECTROCATALYSTS PLATINUM TRENDS WATER NANOPARTICLES |
| DOI | 10.1002/smll.201900014 |
| 文献子类 | 期刊论文 |
| 英文摘要 | Transition metal carbide compound has been extensively investigated as a catalyst for hydrogenation, for example, due to its noble metal-like properties. Herein a facile synthetic strategy is applied to control the thickness of atomic-layer Pt clusters strongly anchored on N-doped Mo2C nanorods (Pt/N-Mo2C) and it is found that the Pt atomic layers modify Mo2C function as a high-performance and robust catalyst for hydrogen evolution. The optimized 1.08 wt% Pt/N-Mo2C exhibits 25-fold, 10-fold, and 15-fold better mass activity than the benchmark 20 wt% Pt/C in neutral, acidic, and alkaline media, respectively. This catalyst also represents an extremely low overpotential of -8.3 mV at current density of 10 mA cm(-2), much better than the majority of reported electrocatalysts and even the commercial reference catalyst (20 wt%) Pt/C. Furthermore, it exhibits an outstanding long-term operational durability of 120 h. Theoretical calculation predicts that the ultrathin layer of Pt clusters on Mo-Mo2C yields the lowest absolute value of Delta G(H*). Experimental results demonstrate that the atomic layer of Pt clusters anchored on Mo2C substrate greatly enhances electron and mass transportation efficiency and structural stability. These findings could provide the foundation for developing highly effective and scalable hydrogen evolution catalysts. |
| 语种 | 英语 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/31787]  |
| 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, Inst Phys, Beijing 100190, Peoples R China 2.Northwest Univ, Minist Educ, Key Lab Synthet & Nat Funct Mol Chem, Xian 710069, Shaanxi, Peoples R China; 3.Northwest Univ, Coll Chem & Mat Sci, Xian 710069, Shaanxi, Peoples R China; 4.Univ Sci & Technol China, Hefei Natl Lab Phys Sci, Microscale Sch Chem Mat Sci Synerget Innovat Quan, CAS Key Lab Mat Energy Convers, Hefei 230026, Anhui, Peoples R China; 5.Univ Sci & Technol China, CAS Excellent Ctr Nanosci, Hefei 230026, Anhui, Peoples R China; 6.UCL, Dept Chem Engn, Torrington Pl, London WC1E 7JE, England; 7.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai Synchrotron Radiat Facil, Shanghai 201800, Peoples R China; 8.Univ Sci & Technol China, Natl Synchrotron Radiat Lab, Hefei 230029, Anhui, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Qiu, Y,Wen, ZL,Jiang, CR,et al. Rational Design of Atomic Layers of Pt Anchored on Mo2C Nanorods for Efficient Hydrogen Evolution over a Wide pH Range[J]. SMALL,2019,15(14):—. |
| APA | Qiu, Y.,Wen, ZL.,Jiang, CR.,Wu, XJ.,Si, R.,...&Guo, XH.(2019).Rational Design of Atomic Layers of Pt Anchored on Mo2C Nanorods for Efficient Hydrogen Evolution over a Wide pH Range.SMALL,15(14),—. |
| MLA | Qiu, Y,et al."Rational Design of Atomic Layers of Pt Anchored on Mo2C Nanorods for Efficient Hydrogen Evolution over a Wide pH Range".SMALL 15.14(2019):—. |
入库方式： OAI收割
来源：上海应用物理研究所
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