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, Xiaoping

机构：[1] Physics and Electronic Engineering Department, Xinxiang University, Xinxiang, 453003, China; [2] Key Laboratory of Sensor and Sensing Technology, Gansu Academy of Sciences, Lanzhou Gansu, 730000, China; [3] Key Laboratory for Magnetism and Magnetic Materials of MOE, Key Laboratory of Special Function Materials and Structure Design of MOE, Lanzhou University, Lanzhou, 730000, China

第一机构：新乡学院物理与电子工程学院

通讯机构：[2]Key Laboratory of Sensor and Sensing Technology, Gansu Academy of Sciences, Lanzhou Gansu, 730000, 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：EI(收录号：20202408808467);Scopus(收录号：2-s2.0-85086031680)

语种：英文

外文关键词：Nitrogen - Electrolysis - Electrolytes - Charge transfer - Ammonia - Doping (additives) - Slope stability - Hydrogen production - Ruthenium compounds - Ruthenium - Nanoparticles

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. This journal is ? The Royal Society of Chemistry.