Jump to main content
Jump to site search

Issue 21, 2020
Previous Article Next Article

Mo-Doped ultrafine VC nanoparticles confined in few-layer graphitic nanocarbon for improved electrocatalytic hydrogen evolution

Author affiliations

Abstract

Developing highly efficient, durable electrocatalysts based on cheap, non-precious metals for the hydrogen evolution reaction (HER) is still the key issue in the field of hydrogen economy. Herein, we report Mo-doped ultrafine VC nanoparticles confined in few-layer graphitic nanocarbon (Mo-VC@GC) by a facile one-step pyrolysis method. The as-prepared Mo-VC@GC exhibits enhanced electrocatalytic activity compared with the VC@GC counterpart, with a lower overpotential of 198 mV (VC@GC: 324 mV) to achieve a current density of 10 mA cm−2, a smaller Tafel slope of 169 mV dec−1 (VC@GC: 209 mV dec−1), along with outstanding long-term durability for at least 80 h, and ∼100% HER yield in 1 M KOH solution. The remarkable electrocatalytic performance of Mo-VC@GC can be attributed to the desirable electronic structures and crystallinity regulated by Mo-doping, the unique ultrafine VC nanostructures with abundant exposed active sites, and atomically thin graphitic nanocarbon with high conductivity as a support.

Graphical abstract: Mo-Doped ultrafine VC nanoparticles confined in few-layer graphitic nanocarbon for improved electrocatalytic hydrogen evolution

Back to tab navigation

Supplementary files

Article information


Submitted
25 Dec 2019
Accepted
26 Aug 2020
First published
11 Sep 2020

Inorg. Chem. Front., 2020,7, 4142-4149
Article type
Research Article

Mo-Doped ultrafine VC nanoparticles confined in few-layer graphitic nanocarbon for improved electrocatalytic hydrogen evolution

L. Cao, N. Zhang, L. Feng, D. He, K. Kajiyoshi, X. Li, Q. Huang, L. Feng, J. Huang and R. Li, Inorg. Chem. Front., 2020, 7, 4142
DOI: 10.1039/C9QI01679A

Social activity

Search articles by author

Spotlight

Advertisements