| Literature DB >> 26435162 |
Yu-Jia Tang1, Min-Rui Gao2, Chun-Hui Liu1, Shun-Li Li1, Hai-Long Jiang2, Ya-Qian Lan3, Min Han1, Shu-Hong Yu4.
Abstract
We have synthesized a porous Mo-based composite obtained from a polyoxometalate-based metal-organic framework and graphene oxide (POMOFs/GO) using a simple one-pot method. The MoO2 @PC-RGO hybrid material derived from the POMOFs/GO composite is prepared at a relatively low carbonization temperature, which presents a superior activity for the hydrogen-evolution reaction (HER) in acidic media owing to the synergistic effects among highly dispersive MoO2 particles, phosphorus-doped porous carbon, and RGO substrates. MoO2 @PC-RGO exhibits a very positive onset potential close to that of 20 % Pt/C, low Tafel slope of 41 mV dec(-1) , high exchange current density of 4.8×10(-4) A cm(-2) , and remarkable long-term cycle stability. It is one of the best high-performance catalysts among the reported nonprecious metal catalysts for HER to date.Entities:
Keywords: Molybdenum; hydrogen-evolution reaction; metal-organic frameworks; phosphorus-doped porous carbon; reduced graphene oxide
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Year: 2015 PMID： 26435162 DOI： 10.1002/anie.201505691
Source DB: PubMed Journal: Angew Chem Int Ed Engl ISSN： 1433-7851 Impact factor: 15.336