Issue 21, 2014

Nanoporous molybdenum carbide wires as an active electrocatalyst towards the oxygen reduction reaction

Abstract

A non-precious metal electrocatalyst has been developed for the oxygen reduction reaction based on nanoporous molybdenum carbide (nano-Mo2C) wires through a facile calcination of sub-nanometer periodic organic–inorganic hybrid nanowires. The highly dispersed Mo2C wires were composed of 10–15 nm nanocrystals with a mesopore size of 3.3 nm. The properties of nano-Mo2C wires were characterized using scanning electron microscopy, transmission electron microscopy, X-ray diffraction and N2 adsorption/desorption porosimetry. The highly active surface area and enriched nanoporosity for nano-Mo2C wires are unique features that make them a high-performance electrocatalyst for oxygen reduction in an alkaline medium. The electrocatalysis and reaction kinetics results show that nano-Mo2C-based materials can be developed as new catalysts with high activity at low cost for electrochemical energy conversion applications.

Graphical abstract: Nanoporous molybdenum carbide wires as an active electrocatalyst towards the oxygen reduction reaction

Article information

Article type
Paper
Submitted
10 noy 2013
Accepted
29 yan 2014
First published
12 fev 2014

Phys. Chem. Chem. Phys., 2014,16, 10088-10094

Author version available

Nanoporous molybdenum carbide wires as an active electrocatalyst towards the oxygen reduction reaction

L. Liao, X. Bian, J. Xiao, B. Liu, M. D. Scanlon and H. H. Girault, Phys. Chem. Chem. Phys., 2014, 16, 10088 DOI: 10.1039/C3CP54754J

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