Effects of dopants on performance of metal crystallites 3. Influence on kinetic parameters in CO/H sub 2 and CO/O sub 2 reactions

Journal Article · Sat Apr 01 00:00:00 EST 1989 · Journal of Catalysis; (USA)

DOI:https://doi.org/10.1016/0021-9517(89)90124-3· OSTI ID:6223766

Akubuiro, E C ^[1]; Verykios, X E ^[2]

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1. Drexel Univ., Philadelphia, PA (USA)
2. Univ. of Patras (Greece)

It has often been demonstrated in the literature that chemisorptive and catalytic properties of supported metal crystallites can be influenced by the nature of the carrier employed in catalyst formulation. Early work attributed the origin of certain types of metal-support interactions to the electronic state of the carrier. During the last decade, the concept of SMSI has dominated the literature in this field. The origin of the SMSI phenomenon has been attributed to migration of TiO{sub x} species to the surface of metal crystallites and to an electronic factor operating concomitantly. The effects of altervalent cation doping of TiO{sub 2} carriers on the chemisorptive properties of Pt crystallites were discussed in previous publications. In the present communication, the effects of altervalent cation doping of TiO{sub 2} carriers on the catalytic doping of TiO{sub 2} carriers on the catalytic performance of Pt and Rh crystallites are presented. Carbon monoxide hydrogenation and oxidation are used as probe reactions.

• OSTI ID: 6223766
• Journal Information: Journal of Catalysis; (USA), Vol. 116:2; ISSN 0021-9517
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
33 ADVANCED PROPULSION SYSTEMS
CARBON MONOXIDE
METHANATION
OXIDATION
PLATINUM
CATALYTIC EFFECTS
RHODIUM
CATALYST SUPPORTS
CHEMICAL PREPARATION
DOPED MATERIALS
GAS CHROMATOGRAPHY
HYDROGEN
HYDROGENATION
IMPREGNATION
REDUCTION
RHODIUM CHLORIDES
TITANIUM OXIDES
CARBON COMPOUNDS
CARBON OXIDES
CHALCOGENIDES
CHEMICAL REACTIONS
CHLORIDES
CHLORINE COMPOUNDS
CHROMATOGRAPHY
ELEMENTS
HALIDES
HALOGEN COMPOUNDS
MATERIALS
METALS
NONMETALS
OXIDES
OXYGEN COMPOUNDS
PLATINUM METALS
REFRACTORY METAL COMPOUNDS
RHODIUM COMPOUNDS
SEPARATION PROCESSES
SYNTHESIS
TITANIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
010408* - Coal
Lignite
& Peat- C1 Processes- (1987-)
330702 - Emission Control- Carbon Monoxide