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论文类型：期刊论文

发表时间：2019-03-01

发表刊物：ChemElectroChem

收录刊物：EI

卷号：6

期号：5

页面范围：1329-1332

关键字：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

摘要：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