Fabrication of N, P-codoped Mo2C/Carbon Nanofibers via Electrospinning as Electrocatalyst for Hydrogen Evolution Reaction
Abstract
Stable and efficient noble-metal-free electrocatalysts are imperative substitute of Pt-based electrocatalysts for hydrogen evolution reaction. In this study, N,P-codoped Mo2C/carbon nanofibers prepared via electrospinning and one step heat treatment, exhibited a high dispersion of Mo2C and existence of N and P, which benefit for the electrocatalytic performance of hydrogen evolution reaction. Solving ammonium phosphomolybdate hydrate (PMoHN) in precursor solution, Mo, N and P were introduced in carbon nanofibers, and dosage of PMoHN on electrocatalytic performance was investigated. Subsequently electrochemical tests reveal that 4% (wt. V-1) PMoHN shows the best catalytic performance. The overpotential under acidic (0.5 M H2SO4) and alkaline (1.0 M KOH) conditions are 196 and 107 mV to achieve the current density of 10 mA cm-2, and Tafel slopes are 81.3 and 67.5 mV dec-1 respectively. Moreover, N, P-codoped Mo2C/carbon nanofibers exhibits excellent stability under acidic and alkaline conditions.
Publication details
Received: 29 Nov 2019
Revised: 19 Dec 2019
Accepted: 08 Jan 2020
Published online: 10 Jan 2020
Article type:
Communication
DOI:
10.30919/esmm5f618
Volume:
7
Page:
34-39
Citation:
ES Materials & Manufacturing, 2020, 7, 34-39
Permissions:
Copyright
Number of downloads:
3609
Citation Information:
17
Description:
N, P-codoped Mo2C/carbon nanofibers prepared via electrospinning and one step heat treatment, exhibi....
N, P-codoped Mo2C/carbon nanofibers prepared via electrospinning and one step heat treatment, exhibited excellent electrocatalysis and stability for hydrogen evolution reaction.
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