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- Title
Porous Molybdenum-Based Hybrid Catalysts for Highly Efficient Hydrogen Evolution.
- Authors
Tang, Yu‐Jia; Gao, Min‐Rui; Liu, Chun‐Hui; Li, Shun‐Li; Jiang, Hai‐Long; Lan, Ya‐Qian; Han, Min; Yu, Shu‐Hong
- 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.
- Subjects
POROUS materials synthesis; CARBONIZATION; HYDROGEN evolution reactions; METAL catalysts; METAL-organic frameworks; DOPED semiconductors; CURRENT density (Electromagnetism)
- Publication
Angewandte Chemie International Edition, 2015, Vol 54, Issue 44, p12928
- ISSN
1433-7851
- Publication type
Article
- DOI
10.1002/anie.201505691