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Ti 0.99 Pd 0.01 O 2−δ : A New Pt‐free Catalyst for High Rates of H 2 +O 2 Recombination with High CO Tolerant Capacity
Author(s) -
Sharma Sudhanshu,
Hegde Manjanath S.
Publication year - 2009
Publication title -
chemphyschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.016
H-Index - 140
eISSN - 1439-7641
pISSN - 1439-4235
DOI - 10.1002/cphc.200800768
Subject(s) - catalysis , platinum , recombination , ion , vacancy defect , inorganic chemistry , adsorption , oxide , chemistry , materials science , crystallography , biochemistry , organic chemistry , gene
A platinum‐free H 2 /O 2 recombination catalyst , Ti 0.99 Pd 0.01 O 2− δ , is synthesized by a solution combustion method where Pd 2+ ions adsorb protonic H 2 δ+ ion and oxygen on the oxide ion vacancy sites (see picture). The rate of H 2 +O 2 recombination at 50 °C is 15 μmoles g −1 s −1 , which is much higher than that of Pt‐containing catalysts.