Developing earth-abundant and high-performance electrocatalysts toward the alkaline hydrogen evolution reaction (HER) is highly desired. In this communication, we report a Mn-doped Ni₂P nanosheet array on nickel foam (Mn-Ni₂P/NF) as a high-efficiency electrocatalyst for the HER in alkaline solutions. This Mn-Ni₂P/NF can drive 20 mA cm⁻² at an overpotential of 103 mV in 1.0 M KOH, which is 82 mV less than that for Ni₂P/NF. In addition, it also demonstrates excellent long-term electrochemical durability for at least 25 h. This work offers us a promising catalyst material for water-splitting devices for large-scale production of hydrogen fuels.

中文翻译：

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Mn掺杂的Ni ₂ P纳米片阵列：碱性介质中高效持久的氢析出反应电催化剂

迫切需要开发出丰富的，高性能的碱性氢放出反应（HER）电催化剂。在此交流中，我们报告了在泡沫镍（Mn-Ni ₂ P / NF）上的Mn掺杂的Ni ₂ P纳米片阵列，作为HER在碱性溶液中的高效电催化剂。此的Mn-Ni系₂ P / NF可驱动20毫安厘米^-2中的1.0M KOH，这是82毫伏比用于更少的Ni在的超电势103毫伏的₂ P / NF。此外，它还表现出了至少25小时的优异长期电化学耐久性。这项工作为我们提供了一种有望用于大规模生产氢燃料的水分解装置的催化剂材料。