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V4P6.98/VO(PO3)2 as an Efficient Non-Noble Metal Catalyst for Electrochemical Hydrogen Evolution in Alkaline Electrolyte

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Indexed by:期刊论文

Date of Publication:2019-03-01

Journal:ChemElectroChem

Included Journals:EI

Volume:6

Issue:5

Page Number:1329-1332

Key Words:Catalysis; Catalyst activity; Electrolytes; Energy utilization; Hydrogen production; Phosphorus compounds; Vanadium compounds, Alkaline electrolytes; High catalytic performance; High-purity products; Hydrogen evolution reactions; Low energy consumption; Metal phosphides; Non-noble metal catalysts; Water splitting, Precious metals

Abstract:Electrocatalytic water splitting for hydrogen production shows great potential for developing hydrogen as an energy source, owing to its low energy consumption and high-purity products. Developing non-noble metal hydrogen evolution reaction (HER) catalysts with a high activity for water splitting in alkaline media is urgent and challenging. Herein, we synthesized a flower-like V4P6.98/VO(PO3)2 catalyst on a nickel foam substrate as an efficient non-noble metal catalyst for electrochemical hydrogen evolution in alkaline electrolyte. The catalyst showed high catalytic performance for HER, requiring an overpotential of 159 mV to achieve 10 mA/cm2, and displayed long-term stability in alkaline medium. We report a low-cost and high-efficiency non-noble metal HER catalyst beyond the commonly used transition metals (Ni, Co, Mo, Cu, and Fe), which expands the scope of non-noble-metal phosphide catalysts for water splitting. © 2019 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim

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