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

Research output: Contribution to journalArticleResearchpeer-review

12 Citations (Scopus)

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 languageEnglish
Pages (from-to)1490-1492
Number of pages3
JournalElectrochemistry Communications
Volume12
Issue number11
DOIs
Publication statusPublished - Nov 2010
Externally publishedYes

Keywords

  • Bismuth
  • HOR/HER
  • Nanoparticle
  • Palladium
  • PEMFC
  • Sibunit carbon

Cite this