The development of highly active noble-metal-free catalysts for alkaline hydrogen evolution reaction (HER) can greatly lower the cost of hydrogen economy and boost the utilization of clean and renewable energy. Herein, we report an interface-engineered nanostructure (Ni(OH)₂–Ni₂P/Ti) as a highly efficient HER catalyst. Impressively, the newly generated hybrid catalyst exhibits superior catalytic activity when compared to that of pristine Ni₂P/Ti. It only requires overpotentials of 57 and 85 mV to afford current densities of 10 and 20 mA cm⁻² in 1.0 M KOH, respectively, with its catalytic activity being retained for 24 h.

中文翻译：

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在Ni ₂ P纳米片阵列上 电沉积超薄Ni（OH）₂非晶态膜：一种有效增强碱性氢释放反应的有效策略†

开发用于碱性氢释放反应（HER）的高活性，不含贵金属的催化剂可以大大降低氢经济成本，并促进清洁和可再生能源的利用。在本文中，我们报告了一种界面工程纳米结构（Ni（OH）₂ -Ni ₂ P / Ti）作为高效HER催化剂。令人印象深刻的是，与原始Ni ₂ P / Ti相比，新生成的杂化催化剂表现出优异的催化活性。它仅需要57和85 mV的超电势即可在1.0 M KOH中分别提供10和20 mA cm ^-2的电流密度，并且其催化活性保持24小时。