文献类型：期刊文献

英文题名：Nitrogen-doped RuS2 nanoparticles containing in situ reduced Ru as an efficient electrocatalyst for hydrogen evolution

作者：Xu, Yan[1];Gao, Xiaoping[2];Zhang, Jingyan[3];Gao, Daqiang[3]

第一作者：徐彦

通讯作者：Gao, XP[1]

机构：[1]Xinxiang Univ, Phys & Elect Engn Dept, Xinxiang 453003, Henan, Peoples R China;[2]Gansu Acad Sci, Key Lab Sensor & Sensing Technol, Lanzhou 730000, Gansu, Peoples R China;[3]Lanzhou Univ, Key Lab Magnetism & Magnet Mat MOE, Key Lab Special Funct Mat & Struct Design MOE, Lanzhou 730000, Peoples R China

第一机构：新乡学院物理与电子工程学院

通讯机构：[1]corresponding author), Gansu Acad Sci, Key Lab Sensor & Sensing Technol, Lanzhou 730000, Gansu, Peoples R China.

年份：2020

卷号：10

期号：30

起止页码：17862-17868

外文期刊名：RSC ADVANCES

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000534282700057)】；

基金：This work is supported by the Science Fund of Educational Department of Henan Province of China and the Ninth Group of Key Disciplines in Henan Province (grant no. 2018119). It is also supported by the Application Research and Development Plan of Gansu Academy of Sciences (2018JK-16), Key Research and Development Plan of Gansu Province (No. 18YF1GA088) and Innovative Team Construction Project of Gansu Academy of Science (2020CX005-01).

语种：英文

外文关键词：Ammonia - Charge transfer - Doping (additives) - Electrocatalysts - Electrolytes - Hydrogen economy - Hydrogen evolution reaction - Hydrogen production - Nanoparticles - Nitrogen - Ruthenium - Slope stability

摘要：The production of hydrogen via water electrolysis brings hope for the realization of hydrogen economy, but there is still a lack of highly efficient and appropriate electrocatalysts for the generation of hydrogen in practical applications. In particular, reasonable construction and feasible preparation strategies are the essential requirements for excellent electrocatalysts. Herein, the heterostructures of N-RuS2/Ru nanoparticles were designed by annealing the RuS2 nanoparticles in ammonia. By introducing a nitrogen dopant and single-phase Ru metal simultaneously, high-efficiency electrocatalytic performance for hydrogen evolution reaction (HER) was implemented, where the electrocatalyst of N-RuS2/Ru exhibited a low onset overpotential of 76 mV and small overpotential of 120 mV at 10 mA cm(-2) in an acidic electrolyte. Besides, it displayed a low Tafel slope of 53 mV dec(-1), a small interface charge transfer resistance, and long-time stability and durability, suggesting its remarkable properties as a promising HER electrocatalyst candidate.