Shuang Xia, Xiao Fu, Bin Wang, Yi Wang, Zhongqing Liu
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引用次数: 0
Abstract
Using cobalt sulfate and nickel sulfate as main electrolytes, ammonium sulfate as an auxiliary electrolyte and buffer agent, and cheap iron pieces (FP) as the substrates, nickel and/or cobalt phosphide/metal heterogeneous catalytic electrode (M2P/M/FP) was grown on the substrate in situ by electrodeposition followed by low temperature phosphating. M2P/M/FP functioned as a good bifunctional electrode for HER and OER in 1 mol/L KOH, where Co2P/Co/FP needed an overpotential of 52 and 288 mV, and (NC)2P/(NC)/FP required that of 75 mV and 293 mV to afford 10 mA/cm2. Previous similar studies often ignored the role of metal and only considered the water electrolysis catalysis of metal phosphide. In this research, it was clarified that for water electrolysis, the essence of high catalysis activity of the M2P/M/FP electrode was the electronic interaction between metal and metal phosphide.
期刊介绍:
The Journal of the Chinese Chemical Society was founded by The Chemical Society Located in Taipei in 1954, and is the oldest general chemistry journal in Taiwan. It is strictly peer-reviewed and welcomes review articles, full papers, notes and communications written in English. The scope of the Journal of the Chinese Chemical Society covers all major areas of chemistry: organic chemistry, inorganic chemistry, analytical chemistry, biochemistry, physical chemistry, and materials science.