Abstract

Thermal decomposition of complex salts [M(NH3)4]A (M = Pt, Pd; A = CrO4, Cr2O7) in oxygen atmosphere goes through the stage of formation of the phase MCrO2 with delafossite structure and it’s further decomposition and formation of the chromium oxide(III) and monometallic platinum or palladium. Thermal decomposition of complex salts [M(NH3)4]A (M = Pt, Pd; A = CrO4, Cr2O7) in hydrogen atmosphere proceeds with partial reduction of chromium to an metallic state and the formation of a metal solid solution MxCr1-x (M = Pt, Pd) with a chromium content up to 22 at.% and a chromium oxide(III). Catalytic properties of bimetallic Pt-Cr2O3 and Pd-Cr2O3 composites obtained by thermal decomposition in hydrogen atmosphere at the temperature 500 °C differs a lot from monometallic Pt and Pd in CO TOX and PROX processes. Addition of Cr2O3 boosted oxidative activity of metals probably due to appearance of metal-oxide interface, which is of crucial importance in catalysis.

Original languageEnglish
Title of host publicationNANOCON 2019 - Conference Proceedings, 11th International Conference on Nanomaterials - Research and Application
PublisherTANGER LTD
Pages180-185
Number of pages6
ISBN (Electronic)9788087294956
DOIs
Publication statusPublished - 2020
Event11th International Conference on Nanomaterials - Research and Application, NANOCON 2019 - Brno, Czech Republic
Duration: 16 Oct 201918 Oct 2019

Publication series

NameNANOCON Conference Proceedings - International Conference on Nanomaterials
Volume2020-October
ISSN (Print)2694-930X

Conference

Conference11th International Conference on Nanomaterials - Research and Application, NANOCON 2019
CountryCzech Republic
CityBrno
Period16.10.201918.10.2019

Keywords

  • Catalysis
  • Chromium
  • Palladium
  • Platinum
  • Thermal decomposition

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