过电位
二硫化钼
材料科学
催化作用
热液循环
亚稳态
兴奋剂
水热反应
化学工程
氢
相(物质)
电导率
纳米技术
物理化学
光电子学
电化学
化学
复合材料
有机化学
电极
工程类
生物化学
作者
Changdian Li,Li Zhu,Ziqiang Wu,Qian Chen,Ruobing Zheng,Jie Huan,Yanan Huang,Xuebin Zhu,Yuping Sun
出处
期刊:Small
[Wiley]
日期:2023-08-01
卷期号:19 (48)
被引量:8
标识
DOI:10.1002/smll.202303646
摘要
Abstract Molybdenum disulfide (MoS 2 ) has been proved as an excellent potential hydrogen evolution reaction (HER) catalyst. Compared with thermodynamically stable 2H‐MoS 2 , 1T‐MoS 2 exhibits higher conductivity and catalytic activity, whereas it is usually difficult to prepare since of thermodynamically metastable. Herein, a feasible method is reported to fabricate ambient‐stable MoS 2 with high concentration 1T phase through magnetic free energy synergistic microstrain induced by W doping under low magnetic field. The 1T phase proportion in MoS 2 can be as high as 80% and is ambient‐stable for more than one year. The catalyst prepared under a magnetic field of 3 T delivers an overpotential of 195 mV at a current density of 10 mA cm −2 and has a long‐term stability over 50 h. This work provides a novel strategy for preparation of MoS 2 with high 1T concentration and high stability.
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