Bismuth modified Pd/C as catalysts for hydrogen related reactions

Odysseas Paschos, Alexander N. Simonov, Alesya N. Bobrovskaya, Moritz Hantel, Matthias Rzepka, Petra Dotzauer, Anton N. Popov, Pavel A. Simonov, Valentin N. Parmon, Ulrich Stimming

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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 languageEnglish
Pages (from-to)1490-1492
Number of pages3
JournalElectrochemistry Communications
Issue number11
Publication statusPublished - Nov 2010
Externally publishedYes


  • Bismuth
  • Nanoparticle
  • Palladium
  • Sibunit carbon

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