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Ru nanoparticles encapsulated in ZIFs-derived porous N-doped hierarchical carbon nanofibers for enhanced hydrogen evolution reaction

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Abstract

Ruthenium (Ru)-based materials have been proven to be highly efficient hydrogen evolution reaction (HER) electrocatalysts and have become the most promising candidates for replacing platinum (Pt)-based electrocatalysts. Herein, we report an easily scalable electrospinning strategy to construct nitrogen-doped carbon nanofibers with porous hierarchical structures and uniformly dispersed Ru nanoparticles (abbreviated as ES-Ru-ZIF-900). Benefiting from the porous fibrous nanoarchitecture caused by the pyrolysis of the zeolitic imidazolate framework-8, the abundant firmly immobilized Ru NPs, and the high conductivity of the N-doped carbon matrix, the resultant ES-Ru-ZIF-900 electrocatalyst exhibits an extraordinary HER performance. ES-Ru-ZIF-900 only needs an overpotential of 21 mV to drive the current density of 10 mA cm−2, and possesses long durability for over 14 h in 1.0 M KOH, superior to Pt/C and most of the non-Pt based electrocatalysts. This work offers a universal and efficient synthetic strategy for preparing metal-based nitrogen-doped carbon hybrid catalysts with enhanced HER activity.

Graphical abstract: Ru nanoparticles encapsulated in ZIFs-derived porous N-doped hierarchical carbon nanofibers for enhanced hydrogen evolution reaction

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Article information


Submitted
19 Jun 2020
Accepted
03 Sep 2020
First published
07 Sep 2020

Catal. Sci. Technol., 2020, Advance Article
Article type
Paper

Ru nanoparticles encapsulated in ZIFs-derived porous N-doped hierarchical carbon nanofibers for enhanced hydrogen evolution reaction

L. Fan, T. Meng, Q. Li, D. Wang, Z. Xing, E. Wang and X. Yang, Catal. Sci. Technol., 2020, Advance Article , DOI: 10.1039/D0CY01232G

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