Porous molybdenum carbide nano-octahedrons synthesized via confined carburization in metal-organic frameworks for efficient hydrogen production

Nature Communications
Hao Bin WuXiong Wen David Lou

Abstract

Electrochemical water splitting has been considered as a promising approach to produce clean and sustainable hydrogen fuel. However, the lack of high-performance and low-cost electrocatalysts for hydrogen evolution reaction hinders the large-scale application. As a new class of porous materials with tunable structure and composition, metal-organic frameworks have been considered as promising candidates to synthesize various functional materials. Here we demonstrate a metal-organic frameworks-assisted strategy for synthesizing nanostructured transition metal carbides based on the confined carburization in metal-organic frameworks matrix. Starting from a compound consisting of copper-based metal-organic frameworks host and molybdenum-based polyoxometalates guest, mesoporous molybdenum carbide nano-octahedrons composed of ultrafine nanocrystallites are successfully prepared as a proof of concept, which exhibit remarkable electrocatalytic performance for hydrogen production from both acidic and basic solutions. The present study provides some guidelines for the design and synthesis of nanostructured electrocatalysts.

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Citations

Nov 12, 2015·Journal of the American Chemical Society·Zhong-Li WangXin-Bo Zhang
Apr 12, 2016·ACS Applied Materials & Interfaces·Jiayuan LiYongquan Qu
Jun 14, 2016·Accounts of Chemical Research·Wesley Luc, Feng Jiao
Jun 30, 2016·Journal of the American Chemical Society·Xue-Feng LuXiao-Ming Chen
Sep 30, 2016·ACS Applied Materials & Interfaces·Zhibin GengShouhua Feng
Oct 25, 2016·Journal of the American Chemical Society·Jie YinShouheng Sun
Nov 1, 2016·Journal of the American Chemical Society·Gong ZhangJinghong Li
Sep 9, 2016·Scientific Reports·Hui Pan
Nov 7, 2015·Scientific Reports·Bing-Joe HwangYu-Chuan Liu

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Methods Mentioned

BETA
scanning electron microscopy
X-ray
transmission electron microscopy
electron diffraction

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