Preparation of High-Percentage 1T-Phase Transition Metal Dichalcogenide Nanodots for Electrochemical Hydrogen Evolution
文献类型：期刊论文
| 作者 | Tan, CL; Zheng LR(郑黎荣) ; Zhang, H; Kloc, C; Gu, L; Wu, XJ; Han, SK; Wang, J; Goh, MH; Qi, XY
|
| 刊名 | ADVANCED MATERIALS
 |
| 出版日期 | 2018 |
| 卷号 | 30期号:9页码:1705509 |
| 关键词 | hydrogen evolution metallic 1T phase MoS2 MoSSe nanodots transition metal dichalcogenides |
| ISSN号 | 0935-9648 |
| DOI | 10.1002/adma.201705509 |
| 文献子类 | Article |
| 英文摘要 | Nanostructured transition metal dichalcogenides (TMDs) are proven to be efficient and robust earth-abundant electrocatalysts to potentially replace precious platinum-based catalysts for the hydrogen evolution reaction (HER). However, the catalytic efficiency of reported TMD catalysts is still limited by their low-density active sites, low conductivity, and/or uncleaned surface. Herein, a general and facile method is reported for high-yield, large-scale production of water-dispersed, ultrasmall-sized, high-percentage 1T-phase, single-layer TMD nanodots with high-density active edge sites and clean surface, including MoS2, WS2, MoSe2, Mo0.5W0.5S2, and MoSSe, which exhibit much enhanced electrochemical HER performances as compared to their corresponding nanosheets. Impressively, the obtained MoSSe nanodots achieve a low overpotential of -140 mV at current density of 10 mA cm(-2), a Tafel slope of 40 mV dec(-1), and excellent long-term durability. The experimental and theoretical results suggest that the excellent catalytic activity of MoSSe nanodots is attributed to the high-density active edge sites, high-percentage metallic 1T phase, alloying effect and basal-plane Se-vacancy. This work provides a universal and effective way toward the synthesis of TMD nanostructures with abundant active sites for electrocatalysis, which can also be used for other applications such as batteries, sensors, and bioimaging. |
| 电子版国际标准刊号 | 1521-4095 |
| WOS关键词 | ACTIVE EDGE SITES ; MOS2 ULTRATHIN NANOSHEETS ; MOLYBDENUM-DISULFIDE ; CATALYTIC-ACTIVITY ; QUANTUM DOTS ; ELECTROCATALYSTS ; NANOMATERIALS ; PHASE ; SURFACE ; ENERGY |
| WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000426491600021 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/285695]  |
| 专题 | 高能物理研究所_多学科研究中心 高能物理研究所_理论物理室 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Tan, CL,Zheng LR,Zhang, H,et al. Preparation of High-Percentage 1T-Phase Transition Metal Dichalcogenide Nanodots for Electrochemical Hydrogen Evolution[J]. ADVANCED MATERIALS,2018,30(9):1705509. |
| APA | Tan, CL.,郑黎荣.,Zhang, H.,Kloc, C.,Gu, L.,...&Luo, ZM.(2018).Preparation of High-Percentage 1T-Phase Transition Metal Dichalcogenide Nanodots for Electrochemical Hydrogen Evolution.ADVANCED MATERIALS,30(9),1705509. |
| MLA | Tan, CL,et al."Preparation of High-Percentage 1T-Phase Transition Metal Dichalcogenide Nanodots for Electrochemical Hydrogen Evolution".ADVANCED MATERIALS 30.9(2018):1705509. |
入库方式： OAI收割
来源：高能物理研究所
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