Ni(OH)(2)-Fe2P hybrid nanoarray for alkaline hydrogen evolution reaction with superior activity
Ni(OH)(2)-Fe2P hybrid nanoarray for alkaline hydrogen evolution reaction with superior activity
复制标题
Ni(OH)(2)-Fe2P杂化纳米阵列用于碱性析氢反应，具有优异的活性
DOI：
10.1039/c7cc07342a
复制
发表时间：
2018
影响因子：
4.9
通讯作者：
Qu Fengli
中科院分区：
文献类型：
--
作者：
Zhang Xiaoping;Zhu Shuyun;Xia Lian;Si Chongdian;Qu Fei;Qu Fengli
在碱性条件下开发高效析氢反应（HER）电催化剂具有很强的吸引力。在本文中，我们报道了在Ti网（Ni(OH)2 - Fe2P/TM）上电沉积制备非晶Ni(OH)2修饰Fe2P纳米阵列的方法。作为析氢反应的三维电极，Ni(OH) 2-Fe2P /TM表现出优异的催化活性。此外，制备的电催化剂只需要76 mV的过电位就可以驱动10 mA cm−2的电流密度，比Fe2P/TM的电流密度小94 mV。它还表现出较强的长期电化学耐久性，其催化活性可保持至少20小时。
It is highly attractive to develop efficient hydrogen evolution reaction (HER) electrocatalysts under alkaline conditions. In this communication, we report the preparation of amorphous Ni(OH)2 decorated Fe2P nanoarray on Ti mesh (Ni(OH)2–Fe2P/TM) via electrodeposition. As a 3D electrode for the hydrogen evolution reaction, such Ni(OH)2–Fe2P/TM demonstrates superior catalytic activity. Moreover, the as-prepares electrocatalyst requires an overpotential of only 76 mV to drive a current density of 10 mA cm−2, which is 94 mV less than that for Fe2P/TM. It also shows strong long-term electrochemical durability with its catalytic activity being maintained for at least 20 h.