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 language | English |
|---|---|
| Pages (from-to) | 1201-1210 |
| Number of pages | 10 |
| Journal | Materials Research Bulletin |
| Volume | 26 |
| Issue number | 11 |
| DOIs | |
| Publication status | Published - 1991 |
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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 journal › Article
}
TY - JOUR
T1 - Reduction chemistry of platinum group metal perovskites
AU - Wiley, John B.
AU - Poeppelmeier, Kenneth R
PY - 1991
Y1 - 1991
N2 - 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.
AB - 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.
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UR - http://www.scopus.com/inward/citedby.url?scp=0026253725&partnerID=8YFLogxK
U2 - 10.1016/0025-5408(91)90127-8
DO - 10.1016/0025-5408(91)90127-8
M3 - Article
VL - 26
SP - 1201
EP - 1210
JO - Materials Research Bulletin
JF - Materials Research Bulletin
SN - 0025-5408
IS - 11
ER -