期刊
JOURNAL OF ENERGY CHEMISTRY
卷 32, 期 -, 页码 78-84出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jechem.2018.07.006
关键词
Molybdenum carbide; Molybdenum nitride; Nitrogen-doped carbon; Hydrogen evolution reaction; Electrocatalysis
资金
- National Natural Science Foundation of China [21421001, 21573115]
- 111 project [B12015]
- Fundamental Research Funds for the Central Universities [63185015]
- Foundation of State Key Laboratory of Highefficiency Utilization of Coal and Green Chemical Engineering [2017-K13]
Molybdenum-based electrocatalysts are promising candidates of platinum (Pt)-based materials in electro-catalyzing hydrogen evolution reaction (HER), due to their cost-efficient and resembled electronic properties. Reported herein is the preparation of molybdenum carbide nanoparticles uniformly decorated on nitrogen-modified carbons (Mo2C/NC) through the carbonization of Mo-based polymers under hydrogen atmosphere by using poly(p-phenylenediamine) and ammonium heptamolybdate polymer analogue as precursors. And the molybdenum nitride nanoparticles loaded on porous N-doped carbons (Mo2N/NC) are also fabricated by calcination the polymer precursors in nitrogen gas. The Mo2C/NC shows more excellent electrocatalytic activity than Mo2N/NC in 0.5 M H2SO4, together with robust long-term durability. The well-crystalline nanoparticles and the increased electron conductivity are the main characters responded for the high catalytic efficiency of the fabricated electrocatalysts. This easily fabrication procedure may provide a facile route to prepare non-noble metal carbide/nitride catalysts featuring well-engineered structural and textural peculiarities for realistic energy conversion system. (c) 2018 Science Press and Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. and Science Press. All rights reserved.
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