| Morphology and surface chemistry engineering toward pH-universal catalysts for hydrogen evolution at high current density | |
| Luo, Yuting1; Tang, Lei1; Khan, Usman1; Yu, Qiangmin1; Cheng, Hui-Ming1,2; Zou, Xiaolong1; Liu, Bilu1 | |
| Corresponding Author | Zou, Xiaolong(xlzou@sz.tsinghua.edu.cn) ; Liu, Bilu(bilu.liu@sz.tsinghua.edu.cn) |
| 2019-01-17 | |
| Source Publication | NATURE COMMUNICATIONS
 |
| ISSN | 2041-1723 |
| Volume | 10Pages:9 |
| Abstract | Large-scale implementation of electrochemical hydrogen production requires several fundamental issues to be solved, including understanding the mechanism and developing inexpensive electrocatalysts that work well at high current densities. Here we address these challenges by exploring the roles of morphology and surface chemistry, and develop inexpensive and efficient electrocatalysts for hydrogen evolution. Three model electrocatalysts are flat platinum foil, molybdenum disulfide microspheres, and molybdenum disulfide microspheres modified by molybdenum carbide nanoparticles. The last catalyst is highly active for hydrogen evolution independent of pH, with low overpotentials of 227 mV in acidic medium and 220 mV in alkaline medium at a high current density of 1000 mA cm(-2), because of enhanced transfer of mass (reactants and hydrogen bubbles) and fast reaction kinetics due to surface oxygen groups formed on molybdenum carbide during hydrogen evolution. Our work may guide rational design of electrocatalysts that work well at high current densities. |
| Funding Organization | National Natural Science Foundation of China ; Youth 1000-Talent Program of China ; Economic, Trade and Information Commission of Shenzhen Municipality for the 2017 Graphene Manufacturing Innovation Center Project ; Shenzhen Basic Research Project ; Development and Reform Commission of Shenzhen Municipality for the development of the Low-Dimensional Materials and Devices discipline |
| DOI | 10.1038/s41467-018-07792-9 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China[51722206] ; Youth 1000-Talent Program of China ; Economic, Trade and Information Commission of Shenzhen Municipality for the 2017 Graphene Manufacturing Innovation Center Project ; Shenzhen Basic Research Project[JCYJ20170307140956657] ; Shenzhen Basic Research Project[JCYJ20170407155608882] ; Development and Reform Commission of Shenzhen Municipality for the development of the Low-Dimensional Materials and Devices discipline |
| WOS Research Area | Science & Technology - Other Topics |
| WOS Subject | Multidisciplinary Sciences |
| WOS ID | WOS:000455953600001 |
| Publisher | NATURE PUBLISHING GROUP |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/131359 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Zou, Xiaolong; Liu, Bilu |
| Affiliation | 1.Tsinghua Univ, Shenzhen Geim Graphene Ctr SGC, TBSI, Shenzhen 518055, Peoples R China 2.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China |
| Recommended Citation GB/T 7714 | Luo, Yuting,Tang, Lei,Khan, Usman,et al. Morphology and surface chemistry engineering toward pH-universal catalysts for hydrogen evolution at high current density[J]. NATURE COMMUNICATIONS,2019,10:9. |
| APA | Luo, Yuting.,Tang, Lei.,Khan, Usman.,Yu, Qiangmin.,Cheng, Hui-Ming.,...&Liu, Bilu.(2019).Morphology and surface chemistry engineering toward pH-universal catalysts for hydrogen evolution at high current density.NATURE COMMUNICATIONS,10,9. |
| MLA | Luo, Yuting,et al."Morphology and surface chemistry engineering toward pH-universal catalysts for hydrogen evolution at high current density".NATURE COMMUNICATIONS 10(2019):9. |
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