Remarkable catalytic activity of cobalt tetraphenylporphyrin modified on a titania for the oxidation of carbon monoxide below room temperature
Journal Article
·
· J. Phys. Chem.; (United States)
CoTPP on TiO/sub 2/-120s modified at 250 /sup 0/C under vacuum catalytically oxidized carbon monoxide rapidly with oxygen even at -79/sup 0/C. Its catalytic activity was incomparably higher than that of commercial Hopcalite. Comparison of its catalytic performance with those of the same catalyst or different TiO/sub 2/ supporting catalyst both evacuated at 200 /sup 0/C revealed unique features of the present catalyst in terms of its oxygen adsorption, the poisoning of adsorbed oxygen, and the insolubility of the complex in benzene. Both significant structural modification of the complex and its strong interaction with properly dehydrated TiO/sub 2/-120s brought about by evacuation at 250 /sup 0/C may induce such extraordinary activity. 14 references, 4 figures, 5 tables.
- Research Organization:
- Kyushu Univ., Fukuoka, Japan
- OSTI ID:
- 5827743
- Journal Information:
- J. Phys. Chem.; (United States), Journal Name: J. Phys. Chem.; (United States) Vol. 89:25; ISSN JPCHA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
33 ADVANCED PROPULSION SYSTEMS
330702 -- Emission Control-- Carbon Monoxide
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CARBOXYLIC ACIDS
CATALYSTS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL REACTIONS
COBALT COMPLEXES
COMPLEXES
DATA
EXPERIMENTAL DATA
HETEROCYCLIC ACIDS
HETEROCYCLIC COMPOUNDS
INFORMATION
LOW TEMPERATURE
MEDIUM TEMPERATURE
NITRIC OXIDE
NITROGEN COMPOUNDS
NITROGEN OXIDES
NUMERICAL DATA
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANOMETALLIC COMPOUNDS
OXIDATION
OXIDES
OXYGEN COMPOUNDS
PORPHYRINS
TITANIUM COMPOUNDS
TITANIUM OXIDES
TRANSITION ELEMENT COMPLEXES
TRANSITION ELEMENT COMPOUNDS
330702 -- Emission Control-- Carbon Monoxide
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CARBOXYLIC ACIDS
CATALYSTS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL REACTIONS
COBALT COMPLEXES
COMPLEXES
DATA
EXPERIMENTAL DATA
HETEROCYCLIC ACIDS
HETEROCYCLIC COMPOUNDS
INFORMATION
LOW TEMPERATURE
MEDIUM TEMPERATURE
NITRIC OXIDE
NITROGEN COMPOUNDS
NITROGEN OXIDES
NUMERICAL DATA
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANOMETALLIC COMPOUNDS
OXIDATION
OXIDES
OXYGEN COMPOUNDS
PORPHYRINS
TITANIUM COMPOUNDS
TITANIUM OXIDES
TRANSITION ELEMENT COMPLEXES
TRANSITION ELEMENT COMPOUNDS