Oxidation of carbon black over various Pt/MOx/SiC catalysts
- 1. Atmospheric Environmental Protection Department, National Institute for Resources and Environment, 16-3 Onogawa, 305-8569 Tsukuba (Japan)
Description
Catalytic activities of various Pt/MOx/SiC systems for carbon oxidation under simulated diesel exhaust gas were investigated in temperature-programmed reactions. When Pt/MOx (MOx=TiO2, ZrO2, Al2O3) was loaded onto silicon carbide (SiC), the oxidation activities became higher than those of Pt/MOx alone or other Pt/MOx/SiC systems (MOx=Ta2O5, WO3, Nb2O5, SnO2, SiO2, CeO2, MoO3, V2O5). Among them, Pt/TiO2/SiC exhibited the highest activity. We discuss the activity of MOx=TiO2, ZrO2, and Al2O3 in connection with NO oxidation activity, adsorption of sulfate onto the support, Pt dispersion, and specific surface area of the catalyst. Furthermore, we investigated the catalytic performance of Pt/TiO2/SiC in more detail under isothermal conditions and in a staged arrangement
Additional details
Publishing Information
- Journal Title
- Applied Catalysis. B, Environmental
- Journal Volume
- 32
- Journal Issue
- 4
- Journal Page Range
- p. 257-268
- ISSN
- 0926-3373
- CODEN
- ACBEE3
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- Netherlands
- INIS RN
- 32045858
- Subject category
- S02: PETROLEUM; S54: ENVIRONMENTAL SCIENCES;
- Descriptors DEI
- CARBON BLACK; CATALYSTS; CERIUM OXIDES; DIESEL ENGINES; ENVIRONMENTAL IMPACTS; ENVIRONMENTAL QUALITY; EXHAUST GASES; MOLYBDENUM OXIDES; NIOBIUM OXIDES; NITRIC OXIDE; OXIDATION; PLATINUM; SILICON CARBIDES; SILICON OXIDES; SPECIFIC SURFACE AREA; TANTALUM OXIDES; THERMODYNAMIC ACTIVITY; ZIRCONIUM OXIDES
- Descriptors DEC
- CARBIDES; CARBON; CARBON COMPOUNDS; CERIUM COMPOUNDS; CHALCOGENIDES; CHEMICAL REACTIONS; ELEMENTS; ENGINES; FLUIDS; GASEOUS WASTES; GASES; HEAT ENGINES; INTERNAL COMBUSTION ENGINES; METALS; MOLYBDENUM COMPOUNDS; NIOBIUM COMPOUNDS; NITROGEN COMPOUNDS; NITROGEN OXIDES; NONMETALS; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; PLATINUM METALS; RARE EARTH COMPOUNDS; REFRACTORY METAL COMPOUNDS; SILICON COMPOUNDS; TANTALUM COMPOUNDS; TRANSITION ELEMENT COMPOUNDS; TRANSITION ELEMENTS; WASTES; ZIRCONIUM COMPOUNDS