Jump to main content
Jump to site search


Well-dispersed ultrasmall VC nanoparticles embedded in N-doped carbon nanotubes as highly efficient electrocatalysts for hydrogen evolution reaction

Author affiliations

Abstract

The rational design and synthesis of ultrasmall metal-based electrocatalysts using earth-abundant elements for the hydrogen evolution reaction (HER) have been widely considered as a promising route for achieving improved catalytic properties. Herein, a metal-triggered confinement strategy to prepare well-dispersed ultrasmall VC nanoparticles (∼3 nm) embedded within N-doped carbon nanotubes (VC@NCNT) by using Co metal as the crystallization promoter is reported. When used as a HER electrocatalyst for water splitting, the resultant VC@NCNT catalyst exhibits low overpotentials (acid medium: 161 mV; alkaline medium: 159 mV; neutral medium: 266 mV) for driving a current density of 10 mA cm−2, remarkable durability at least for 100 h, and ∼100% faradaic yield in both acid and alkaline media. Such excellent electrocatalytic HER performance is ascribed to the synergistic contribution of high pyridinic N-doping, outstanding conductivity of carbon nanotubes, and exposed abundant catalytic active sites of ultrasmall VC nanoparticles.

Graphical abstract: Well-dispersed ultrasmall VC nanoparticles embedded in N-doped carbon nanotubes as highly efficient electrocatalysts for hydrogen evolution reaction

Back to tab navigation

Supplementary files

Publication details

The article was received on 15 May 2018, accepted on 03 Jul 2018 and first published on 03 Jul 2018


Article type: Paper
DOI: 10.1039/C8NR03930E
Citation: Nanoscale, 2018, Advance Article
  •   Request permissions

    Well-dispersed ultrasmall VC nanoparticles embedded in N-doped carbon nanotubes as highly efficient electrocatalysts for hydrogen evolution reaction

    L. Cao, N. Zhang, L. Feng, J. Huang, Y. Feng, W. Li, D. Yang and Q. Liu, Nanoscale, 2018, Advance Article , DOI: 10.1039/C8NR03930E

Search articles by author

Spotlight

Advertisements