Electrodeposited Ni-P Alloy Nanoparticle Films for Efficiently Catalyzing Hydrogen- and Oxygen-Evolution Reactions
Electrodeposited Ni-P Alloy Nanoparticle Films for Efficiently Catalyzing Hydrogen- and Oxygen-Evolution Reactions
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DOI：
10.1002/cnma.201500163
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发表时间：
2015-12
期刊：
影响因子：
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通讯作者：
Chun Tang;Abdullah M. Asiri;Yonglan Luo;Xuping Sun
中科院分区：
文献类型：
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作者：
Chun Tang;Abdullah M. Asiri;Yonglan Luo;Xuping Sun
开发地球资源丰富的用于析氢反应（HER）和析氧反应（OER）的双功能电催化剂是非常理想的，但仍然是一个巨大的挑战。在这篇通讯中，我们证明了在泡沫镍（Ni-P/NF）上电沉积的镍磷合金纳米粒子薄膜可以作为一种高效的双功能水分解电催化剂，在碱性介质中具有很强的耐久性。该电极需要80和309 mV的过电位才能在1.0mKOH中分别驱动HER和OER的10 mA cm−2，其双电极水电解器需要1.67 V的电压才能达到10 mA cm−2。
Development of earth‐abundant bifunctional electrocatalysts for both the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) is highly desirable but still remains a great challenge. In this Communication, we demonstrate that a Ni‐P alloy nanoparticle film electrodeposited on Ni foam (Ni‐P/NF) acts as an efficient bifunctional water‐splitting electrocatalyst with strong durability in alkaline media. This electrode needs overpotentials of 80 and 309 mV to drive 10 mA cm−2for HER and OER, respectively, in 1.0mKOH, and its two‐electrode water electrolyzer requires voltage of 1.67 V to reach 10 mA cm−2.