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Mechanism of hydrogen spillover in metal-zeolite catalysts. I. Influence of CO chemisorption on hydrogen spillover in Pt-containing catalysts

Journal Article · · Kinetics and Catalysis (English Translation); (USA)
OSTI ID:5523845
; ; ;  [1]
  1. N.D. Zelinskii Institute of Organic Chemistry, Moscow (USSR)
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The influence of chemisorbed CO on the hydrogen spillover in Pt-containing pentasil of the type ZVM was investigated by heterophasic isotope exchange between D{sub 2} and the OH groups of the zeolite. It was found that to both the isotopic exchange and the hydrogen spillover are slowed down by CO chemisorption. Activated hydrogen inhibits a strong adsorption of CO. During thermal desorption of CO into the gas phase, CO{sub 2} was detected besides CO.
OSTI ID:
5523845
Journal Information:
Kinetics and Catalysis (English Translation); (USA), Journal Name: Kinetics and Catalysis (English Translation); (USA) Vol. 29:1; ISSN 0023-1584; ISSN KICAA
Country of Publication:
United States
Language:
English

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Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201 -- Chemical & Physicochemical Properties
400202* -- Isotope Effects
Isotope Exchange
& Isotope Separation
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON MONOXIDE
CARBON OXIDES
CATALYST SUPPORTS
CATALYSTS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL ACTIVATION
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
CHEMISORPTION
DESORPTION
DEUTERATION
DEUTERIUM
DIFFUSION
ELEMENTS
HYDROGEN
HYDROGEN COMPOUNDS
HYDROGEN ISOTOPES
HYDROXIDES
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
ISOTOPES
ISOTOPIC EXCHANGE
KINETICS
LIGHT NUCLEI
MASS SPECTRA
MATERIALS
MINERALS
NONMETALS
NUCLEI
ODD-ODD NUCLEI
OXIDES
OXYGEN COMPOUNDS
PLATINUM COMPOUNDS
REACTION KINETICS
SEPARATION PROCESSES
SORPTION
SPECTRA
STABLE ISOTOPES
TIME DEPENDENCE
TRANSITION ELEMENT COMPOUNDS
ZEOLITES