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Issue 30, 2020, Issue in Progress
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Nitrogen-doped RuS2 nanoparticles containing in situ reduced Ru as an efficient electrocatalyst for hydrogen evolution

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Abstract

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.

Graphical abstract: Nitrogen-doped RuS2 nanoparticles containing in situ reduced Ru as an efficient electrocatalyst for hydrogen evolution

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Supplementary files

Article information


Submitted
19 Mar 2020
Accepted
22 Apr 2020
First published
07 May 2020

This article is Open Access

RSC Adv., 2020,10, 17862-17868
Article type
Paper

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

Y. Xu, X. Gao, J. Zhang and D. Gao, RSC Adv., 2020, 10, 17862
DOI: 10.1039/D0RA02530E

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    [Original citation] - Published by The Royal Society of Chemistry.

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