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- Title
Hierarchical β-Mo<sub>2</sub>C Nanotubes Organized by Ultrathin Nanosheets as a Highly Efficient Electrocatalyst for Hydrogen Production.
- Authors
Ma, Fei ‐ Xiang; Wu, Hao Bin; Xia, Bao Yu; Xu, ChENg ‐ Yan; Lou, Xiong WEN (David)
- Abstract
Production of hydrogen by electrochemical water splitting has been hindered by the high cost of precious metal catalysts, such as Pt, for the hydrogen evolution reaction (HER). In this work, novel hierarchical β-Mo2C nanotubes constructed from porous nanosheets have been fabricated and investigated as a high-performance and low-cost electrocatalyst for HER. An unusual template-engaged strategy has been utilized to controllably synthesize Mo-polydopamine nanotubes, which are further converted into hierarchical β-Mo2C nanotubes by direct carburization at high temperature. Benefitting from several structural advantages including ultrafine primary nanocrystallites, large exposed surface, fast charge transfer, and unique tubular structure, the as-prepared hierarchical β-Mo2C nanotubes exhibit excellent electrocatalytic performance for HER with small overpotential in both acidic and basic conditions, as well as remarkable stability.
- Subjects
HYDROGEN production; MOLYBDENUM compounds; CARBON nanotubes; SHEET metal; ELECTROCATALYSTS; ELECTROCHEMISTRY; WATER electrolysis
- Publication
Angewandte Chemie, 2015, Vol 127, Issue 51, p15615
- ISSN
0044-8249
- Publication type
Article
- DOI
10.1002/ange.201508715