Transformation of carbon compounds on graphimet catalysts: III. Structure and catalytic investigation of Pt graphimet

Journal Article · Wed Apr 01 04:00:00 EST 1992 · Journal of Catalysis; (United States)

DOI:https://doi.org/10.1016/0021-9517(92)90346-J· OSTI ID:6939003

Notheisz, F; Mastalir, A; Bartok, M ^[1]

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1. Jozsef Attila Univ., Szeged (Hungary)

The hydrogenation of cyclohexane was studied over Pt-graphimet catalysts pretreated at 298 K. The platinum atoms are situated partly on the external surface of the graphite and partly in the interlayer space. The interlayer atoms are readily accessible for hydrogen, the mass transfer resistance is greater for oxygen, and the cyclohexene cannot diffuse into the interlayer space at all. Thus, the hydrogenation of cyclohexene takes place only on the exposed atoms on the external surface of Pt graphimet, and the atoms in the interlayer space are inactive in this reaction.

• OSTI ID: 6939003
• Journal Information: Journal of Catalysis; (United States), Journal Name: Journal of Catalysis; (United States) Vol. 134:2; ISSN 0021-9517; ISSN JCTLA5
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020400* -- Petroleum-- Processing
ALKENES
CARBON
CATALYTIC EFFECTS
CHEMICAL REACTIONS
CRYSTAL STRUCTURE
CYCLOALKENES
DIFFUSION
ELEMENTAL MINERALS
ELEMENTS
GRAPHITE
HYDROCARBONS
HYDROGENATION
METALS
MICROSTRUCTURE
MINERALS
NONMETALS
ORGANIC COMPOUNDS
PLATINUM
PLATINUM METALS
POROSITY
SURFACE PROPERTIES
TRANSITION ELEMENTS