期刊
COMMUNICATIONS CHEMISTRY
卷 1, 期 -, 页码 -出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/s42004-018-0097-9
关键词
-
资金
- National Key Research Program of China [2017YFA0204800, 2016YFA0202403]
- Natural Science Foundation of China [21603136, 91733301]
- National Science Basic Research Plan in Shaanxi Province of China [2017JM2007]
- Changjiang Scholar and Innovative Research Team [IRT_14R33]
- 111 Project [B14041]
- Fundamental Research Funds for the Central Universities [GK201602007, 2018CSLZ011]
- Chinese National 1000-Talent-Plan program
- Australian Research Council (ARC) [DE150101306, LP160100927]
Molybdenum-based electrocatalysts for hydrogen evolution have been investigated extensively in recent years. However, unlike other non-oxides, molybdenum nitride generally shows a weak preference for hydrogen evolution and low performance owing to surface oxidation and the strong Mo-H bond. Here, we prepare an air-stable molybdenum nitride through a multi-step solid-state reaction. We find that a uniformly dispersed mixture of the precursors is optimal for preparation of the electrocatalyst. To further enhance hydrogen evolution performance towards practical device applications, phosphorus doping is carried out, using a few layered black phosphorus source. The phosphorus-doped molybdenum nitride (P-Mo-N) sample catalyzes hydrogen evolution with potentials of 105, 145, and 157 mV at the current densities of 10, 50, and 100 mA/cm(2), respectively, in 0.5M H2SO4 solution with a small Tafel slope of 43 mV/dec. Thus it outperforms many of the state-of-art molybdenum-based hydrogen evolution catalysts reported to date.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据