Abstract
The electrocatalytic activity of bimetallic BiPd catalysts supported on Sibunit carbon towards hydrogen oxidation/evolution reactions (HOR/HER) was studied in a gas diffusion electrode (GDE) setup. Catalysts were synthesized by deposition of Pd on the carbon support, followed by impregnation of Pd/C precursor with Bi(NO3)3 solution and reduction in hydrogen. Transmission electron microscopy and local EDX elemental analysis revealed that BiPd/C catalysts contain bimetallic particles with narrow size distribution with maxima at 3.2-4.1 nm. X-ray diffraction evidenced that bimetallic particles are constituted by Pd-Bi solid solution. It was shown that modification of Pd/C by bismuth increases the specific activity of palladium towards HOR/HER by a factor of 3.
Original language | English |
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Pages (from-to) | 1490-1492 |
Number of pages | 3 |
Journal | Electrochemistry Communications |
Volume | 12 |
Issue number | 11 |
DOIs | |
Publication status | Published - Nov 2010 |
Externally published | Yes |
Keywords
- Bismuth
- HOR/HER
- Nanoparticle
- Palladium
- PEMFC
- Sibunit carbon