Nanostructured Nickel Phosphide as an Electrocatalyst for the Hydrogen Evolution Reaction
Nanostructured Nickel Phosphide as an Electrocatalyst for the Hydrogen Evolution Reaction
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DOI：
10.1021/ja403440e
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发表时间：
2013-06-26
影响因子：
15
通讯作者：
Schaak, Raymond E.
中科院分区：
文献类型：
--
作者：
Popczun, Eric J.;McKone, James R.;Schaak, Raymond E.
研究了纳米磷化镍(Ni2P)在酸性溶液中对析氢反应(HER)的电催化活性和稳定性。具有催化活性的Ni2P纳米颗粒是中空的和刻面的，暴露出高密度的Ni2P(001)表面，这是以前基于理论预测的活性HER催化剂。Ni2P纳米颗粒具有迄今为止报道的所有非贵金属电催化剂中最高的HER活性，以几乎定量的法拉第产率产生H-2(G)，同时在酸性介质中也提供了稳定性。
Nanoparticles of nickel phosphide (Ni2P) have been investigated for electrocatalytic activity and stability for the hydrogen evolution reaction (HER) in acidic solutions, under which proton exchange membrane-based electrolysis is operational. The catalytically active Ni2P nanoparticles were hollow and faceted to expose a high density of the Ni2P(001) surface, which has previously been predicted based on theory to be an active HER catalyst. The Ni2P nanoparticles had among the highest HER activity of any non-noble metal electrocatalyst reported to date, producing H-2(g) with nearly quantitative faradaic yield, while also affording stability in aqueous acidic media.