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V 4 P 6.98 /VO(PO 3 ) 2 as an Efficient Non‐Noble Metal Catalyst for Electrochemical Hydrogen Evolution in Alkaline Electrolyte
Author(s) -
Zhang Linlin,
Cong Meiyu,
Wang Yong,
Ding Xin,
Liu Aihua,
Gao Yan
Publication year - 2019
Publication title -
chemelectrochem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.182
H-Index - 59
ISSN - 2196-0216
DOI - 10.1002/celc.201801637
Subject(s) - overpotential , catalysis , noble metal , water splitting , phosphide , electrolyte , electrochemistry , inorganic chemistry , hydrogen production , hydrogen , transition metal , platinum , materials science , nickel , chemistry , chemical engineering , metallurgy , electrode , biochemistry , organic chemistry , photocatalysis , engineering
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 V 4 P 6.98 /VO(PO 3 ) 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/cm 2 , 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.