Hua Wei, Liu Huanyan, Wang Jian-Gan, Wei Bingqing
State Key Laboratory of Solidification Processing, Center for Nano Energy Materials, School of Materials Science and Engineering, Northwestern Polytechnical University and Shaanxi Joint Lab of Graphene (NPU), Xi'an 710072, China.
Department of Mechanical Engineering, University of Delaware, Newark, DE 19716, USA.
Nanomaterials (Basel). 2017 Dec 6;7(12):433. doi: 10.3390/nano7120433.
Earth-abundant and low-cost catalysts with excellent electrocatalytic hydrogen evolution reaction (HER) activity in alkaline solution play an important role in the sustainable production of hydrogen energy. In this work, a catalyst of Ni(P, O)·MoO nanowire array on nickel foam has been prepared via a facile route for efficient alkaline HER. Benefiting from the collaborative advantages of Ni(P, O) and amorphous MoO, as well as three-dimensional porous conductive nickel scaffold, the hybrid electrocatalyst shows high catalytic activity in 1 M KOH aqueous solution, including a small overpotential of 59 mV at 10 mA cm, a low Tafel slope of 54 mV dec, and excellent cycling stability.
在碱性溶液中具有优异电催化析氢反应（HER）活性的地球丰富且低成本的催化剂在氢能的可持续生产中起着重要作用。在这项工作中，通过一种简便的路线制备了一种泡沫镍上的Ni(P, O)·MoO纳米线阵列催化剂，用于高效碱性析氢反应。受益于Ni(P, O)和非晶态MoO的协同优势以及三维多孔导电镍支架，这种混合电催化剂在1 M KOH水溶液中表现出高催化活性，包括在10 mA cm时59 mV的小过电位、54 mV dec的低塔菲尔斜率以及优异的循环稳定性。
