摘要
寻找高效廉价的析氢催化剂是"氢经济"中关键一步。通过溶剂热法合成以还原氧化石墨烯(RGO)为载体的Ni_2P纳米颗粒和MoS_2复合材料。在酸性条件下,该复合材料对析氢反应表现出较高的催化活性和稳定性,当电流密度为10 m A·cm^(-2)时过电位为160 mV,塔菲尔斜率为35.9 mV·dec^(-1)。Ni_2P和MoS_2之间的协同效应用氢溢流理论进行了解释。
Finding low-cost and efficient electrocatalysts towards hydrogen evolution reaction （HER） is a crucial step towards a sustainable ＂hydrogen economy＂. In this paper, MoS2-Ni2P/reduced graphene oxide （RGO） has been prepared by a solvothermal reaction. The MoS2-NiaP/RGO composite exhibits high HER activity in the acidic media, with overpotentials of 160 mV at the current density of 10 mA·cm-2 and a low Tafel slope of 35.9 mV·dec-1. The synergistic effect of the combination of Ni2P and MoS2is attributed to hydrogen spillover from Ni2P to MoS2.
作者
秦瑞杰
张占男
王宇新
Qin Ruijie Zhang Zhannan Wang Yuxin(School of Chemical Engineering and Technology, State Key Laboratory of Chemical Engineering, Tianjln University, Tianjin 300072, Chin)
出处
《化学工业与工程》
CAS
CSCD
2017年第2期21-26,共6页
Chemical Industry and Engineering
关键词
二硫化钼
磷化镍
析氢反应
电催化剂
molybdenum disulfide
nickel phosphide
hydrogen evolution reaction
electrocatalyst
