Porous Molybdenum-Based Hybrid Catalysts for Highly Efficient Hydrogen Evolution

Yu-Jia Tang; Min-Rui Gao; Chun-Hui Liu; Shun-Li Li; Hai-Long Jiang; Ya-Qian Lan; Min Han; Shu-Hong Yu

doi:10.1002/anie.201505691

Porous Molybdenum-Based Hybrid Catalysts for Highly Efficient Hydrogen Evolution

Angew Chem Int Ed Engl. 2015 Oct 26;54(44):12928-32. doi: 10.1002/anie.201505691. Epub 2015 Oct 5.

Authors

Yu-Jia Tang¹, Min-Rui Gao², Chun-Hui Liu¹, Shun-Li Li¹, Hai-Long Jiang², Ya-Qian Lan³, Min Han¹, Shu-Hong Yu⁴

Affiliations

¹ School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023 (P.R. China).
² Division of Nanomaterials and Chemistry, Hefei National Laboratory for Physical Sciences at Microscale, Collaborative Innovation Center of Suzhou, Nano Science and Technology, Department of Chemistry, University of Science and Technology of China, Hefei 230026 (P.R. China).
³ School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023 (P.R. China). yqlan@njnu.edu.cn.
⁴ Division of Nanomaterials and Chemistry, Hefei National Laboratory for Physical Sciences at Microscale, Collaborative Innovation Center of Suzhou, Nano Science and Technology, Department of Chemistry, University of Science and Technology of China, Hefei 230026 (P.R. China). shyu@ustc.edu.cn.

PMID: 26435162
DOI: 10.1002/anie.201505691

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.

Keywords: Molybdenum; hydrogen-evolution reaction; metal-organic frameworks; phosphorus-doped porous carbon; reduced graphene oxide.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Catalysis
Hydrogen / chemistry*
Molybdenum / chemistry*
Organometallic Compounds / chemical synthesis
Organometallic Compounds / chemistry*
Particle Size
Porosity
Surface Properties

Substances

Organometallic Compounds
Hydrogen
Molybdenum