Reduction chemistry of platinum group metal perovskites

John B. Wiley, Kenneth R Poeppelmeier

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

The reduction chemistry of the perovskite and perovskite-related compounds, CaRuO3, SrRuO3, BaRuO3, SrIrO3, and BaIrO3, was examined. Samples were reduced at low temperatures (≤ 600°C) by direct reduction with hydrogen gas and by a method that utilized zirconium metal as an oxygen getter. No evidence for oxygen deficient perovskites was observed. In almost all cases, the mixed metal oxide was reduced to form the zero valent platinum group metal and the binary oxide or hydroxide (AO or A(OH)2). One exception was seen in the reduction of SrIrO3 via the getter method where the intermediate Sr4IrO6 was found.

Original languageEnglish
Pages (from-to)1201-1210
Number of pages10
JournalMaterials Research Bulletin
Volume26
Issue number11
DOIs
Publication statusPublished - 1991

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perovskites
Platinum
platinum
Metals
Perovskite
Oxides
mixed oxides
oxygen
metals
Oxygen
hydroxides
metal oxides
Zirconium
oxides
Hydrogen
hydrogen
Gases
gases
Temperature
perovskite

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry

Cite this

Reduction chemistry of platinum group metal perovskites. / Wiley, John B.; Poeppelmeier, Kenneth R.

In: Materials Research Bulletin, Vol. 26, No. 11, 1991, p. 1201-1210.

Research output: Contribution to journalArticle

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