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Treatment of Volatile Organic Compounds with a Pt/Co 3 O 4 ‐CeO 2 Catalyst
Author(s) -
Inoue Kenichiro,
Somekawa Shoichi
Publication year - 2019
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.201800245
Subject(s) - chloroplatinic acid , platinum , catalysis , toluene , isopropyl alcohol , benzene , chemistry , ethyl acetate , dispersant , inorganic chemistry , nuclear chemistry , organic chemistry , dispersion (optics) , physics , optics
For emission control of volatile organic compounds (VOC), e.g., in the painting and printing industries, conventional Pt/Al 2 O 3 and Co 3 O 4 ‐CeO 2 catalysts are used. On the Pt/Al 2 O 3 catalyst, aromatic hydrocarbons containing a benzene ring such as toluene can be oxidized at a lower complete oxidation temperature than on Co 3 O 4 ‐CeO 2 , under typical treatment conditions. However, ethyl acetate and isopropyl alcohol can be oxidized at a lower complete oxidation temperature on Co 3 O 4 ‐CeO 2 than on Pt/Al 2 O 3 . In this study, platinum was directly supported on Co 3 O 4 ‐CeO 2 . Using chloroplatinic acid, the platinum cohered and the catalytic activity did not improve. But when the platinum was supported using platinum colloid coated with dispersant, high‐dispersion support of the platinum on the Co 3 O 4 ‐CeO 2 surface was achieved, and toluene, ethyl acetate, and isopropyl alcohol could be oxidized at less than 250 °C.