TY - JOUR
T1 - Reduction chemistry of platinum group metal perovskites
AU - Wiley, John B.
AU - Poeppelmeier, Kenneth R.
N1 - Funding Information:
This work was supported by the National Science Foundation, Solid State Chemistry Grant DMR 8610659 (J.B.W.), the Science and Technology Center for Superconductivity, Grant DMR 8809854, and the Northwestern University Materials Research Center through support of the X-ray diffraction facility, Grant DMR 8520280 .
PY - 1991/11
Y1 - 1991/11
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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U2 - 10.1016/0025-5408(91)90127-8
DO - 10.1016/0025-5408(91)90127-8
M3 - Article
AN - SCOPUS:0026253725
VL - 26
SP - 1201
EP - 1210
JO - Materials Research Bulletin
JF - Materials Research Bulletin
SN - 0025-5408
IS - 11
ER -