RADIATION INDUCED CHEMISORPTION OF OXYGEN ON CHROMIA

Journal Article · Tue Aug 01 04:00:00 EDT 1961 · Phys. and Chem. Solids

DOI:https://doi.org/10.1016/0022-3697(61)90018-X· OSTI ID:4840838

Nachman, M; Maxim, I; Braun, T

The effect of nuclear radiation on the chemisorption of oxygen on Cr/sub 2/O/sub 3/, Cr/sub 2/O/sub 3/--Al/sub 2/O/sub 3/ and Cr/sub 2/O/sub 3/-- SnO/sub 2/ >i catalysts was studied. An iodometric method was used to measure the amount of chemisorbed oxygen; simultaneously the increase in the catalytic activity of the catalyst in the decomposition of H/sub 2/O/sub 2/ was determined. It was found that the radiation present within a nuclear reactor promotes the chemisorption of oxygen on chromia (either pure or supported on Al/sub 2/O/sub 3/ or SnO/sub 2/) at temperatures at which such a chemisorption does not normally occur. The radiochemisorption of oxygen on chromia increases with the degree of dispersion of chromia on Al/sub 2/O/sub 3/ or SnO/sub 2/ and is accompanied by an increased catalytic activity of this catalyst in the decomposition reaction of H/ sub 2/O/sub 2/. It seems that the radiochemisorption is largely due to the action of gamma rays and fast neutrons on the gas. (auth)

• Research Organization: Inst. of Atomic Physics, Bucharest
• NSA Number: NSA-15-029256
• OSTI ID: 4840838
• Journal Information: Phys. and Chem. Solids, Journal Name: Phys. and Chem. Solids Vol. Vol: 20
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ADSORPTION
ALUMINUM OXIDES
CATALYSIS
CHEMISTRY
CHROMIUM OXIDES
DECOMPOSITION
DISPERSIONS
FAST NEUTRONS
GAMMA RADIATION
GASES
HYDROGEN PEROXIDES
INDUCTION
IODINE
MEASURED VALUES
OXYGEN
QUALITATIVE ANALYSIS
RADIATION EFFECTS
RADIATIONS
RADIOCHEMISTRY
RESEARCH REACTORS
TIN OXIDES