Journal
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
Volume 16, Issue 21, Pages 10088-10094Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3cp54754j
Keywords
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Funding
- NSFC [20925517]
- SKLEAC [201101]
- Swiss Science Foundation [200 021-134 745]
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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 N-2 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 nanoMo(2)C-based materials can be developed as new catalysts with high activity at low cost for electrochemical energy conversion applications.
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