Bottom-up Synthesis of Porous NiMo Alloy for Hydrogen Evolution Reaction
Bottom-up Synthesis of Porous NiMo Alloy for Hydrogen Evolution Reaction
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DOI：
10.3390/met8020083
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发表时间：
2018-01
期刊：
影响因子：
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通讯作者：
Kailong Hu;Samuel Jeong;M. Wakisaka;J. Fujita;Yoshikazu Ito
中科院分区：
文献类型：
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作者：
Kailong Hu;Samuel Jeong;M. Wakisaka;J. Fujita;Yoshikazu Ito
系统地研究了由 NiMoO4 纳米纤维还原的多孔 NiMo 合金的自下而上合成，以制备用于制氢的非贵金属多孔电极。 NiMoO4纳米纤维在氢气气氛下的不同退火温度表明，950℃退火温度是制备无氧化物相的双连续多孔NiMo合金的关键。多孔NiMo合金在电水分解中充当阴极，不仅在1.0 M KOH溶液中表现出与商用Pt/C几乎相同的催化活性，而且与可逆氢电极（RHE）相比，在-200 mV的电极电势下12天也具有优异的稳定性。
Bottom-up synthesis of porous NiMo alloy reduced by NiMoO4 nanofibers was systematically investigated to fabricate non-noble metal porous electrodes for hydrogen production. The different annealing temperatures of NiMoO4 nanofibers under hydrogen atmosphere reveal that the 950 °C annealing temperature is key for producing bicontinuous porous NiMo alloy without oxide phases. The porous NiMo alloy acts as a cathode in electrical water splitting, which demonstrates not only almost identical catalytic activity with commercial Pt/C in 1.0 M KOH solution, but also superb stability for 12 days at an electrode potential of −200 mV vs. reversible hydrogen electrode (RHE).