Advanced Functional Materials
Advanced Functional Materials
5 years ago

Structure Confined Porous Mo2C for Efficient Hydrogen Evolution

Structure Confined Porous Mo2C for Efficient Hydrogen Evolution
Liang Huang, Jiabin Wu, Jun Wan, Xiang Gao, Tianqi Li, Huimin Yu, Zhimi Hu
Molybdenum carbide (Mo2C) has been widely applied in energy conversion, electrocatalysis, and other electronic devices, but its nanostructure with certain morphology and porous structure is tough to control. In this work, 1D or 2D porous Mo2C nanostructures can be synthesized by carburizing cobalt-based zeolitic imidazolate framework (ZIF-67) cladding MoO3 nanowires or nanosheets hybrid structure under high temperature. The obtained 2D porous Mo2C shows a low onset overpotential (η = 25 and 36 mV) and a small Tafel slope (40 and 47 mV dec−1) in 0.1 m HClO4 and 0.1 m KOH as well as great stability. This work highlights a new strategy for the design and synthesis of porous nanostructure Mo2C electrocatalysts. In this work, 1D or 2D porous Mo2C nanostructures can be synthesized by carburizing cobalt-based ZIF (ZIF-67) cladding MoO3 nanowires or nanosheets hybrid structure under high temperature.

Publisher URL: http://onlinelibrary.wiley.com/resolve/doi

DOI: 10.1002/adfm.201703933

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