Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7719358 | International Journal of Hydrogen Energy | 2014 | 7 Pages |
Abstract
We demonstrate Pd nanoparticles on well-defined mesoporous tungsten carbide (Pd/meso-WC) for methanol electrooxidation in alkaline solution. The meso-WC exhibits mesoporous structure with â¼8.5Â nm in average pore size and â¼47Â m2Â gâ1 in specific surface area. The Pd nanoparticles with size of â¼3.3Â nm are highly dispersed on the meso-WC. The electron transfer from W to Pd due to the difference of electronegativity is confirmed by X-ray photoelectron spectroscopy. The improved electrocatalytic activity and stability for methanol electrooxidation of Pd/meso-WC is likely to be mainly attributed to a strong interaction between Pd nanoparticles and mesoporous tungsten carbide structure.
Keywords
Related Topics
Physical Sciences and Engineering
Chemistry
Electrochemistry
Authors
Je-Suk Moon, Young-Woo Lee, Sang-Beom Han, Kyung-Won Park,