Published February 1991 | Version v1
Miscellaneous Metadata-only

The effect of gamma radiation on the physico-chemical and catalytic properties of Lasub(0.6)Srsub(0.4)CoO3 (Preprint no. RC-32)

Creators

  • 1. Indian Inst. of Tech., Madras (India). Dept. of Chemistry

Description

The effect of 60Co gamma radiation on the catalytic activity of Lasub(0.6)Srsub(0.4)CoO3 for the decomposition of hydrogen peroxide has been studied using various physico-chemical techniques. Irradiation of the catalyst with gamma rays alters the bulk concentrations of Co4+, Co3+ and Co2+ ions, the average oxidation number of Co and oxygen non-stoichiometry of the sample. The electrical conductivity of the sample decreases and the intensity of ESR signal increases with increasing radiation dose. An explanation of the catalytic activity of irradiated catalysts is proposed. (author). 4 refs., 2 tabs

Availability note (English)

MF available from INIS under the Report Number.

Additional details

Publishing Information

Publisher
Department of Atomic Energy.
Imprint Place
Bombay (India)
Imprint Pagination
3 p.
Report number
INIS-mf--13025

Conference

Title
International symposium on radiochemistry and radiation chemistry (Plutonium - 50 years).
Dates
4-7 Feb 1991.
Place
Bombay (India).

INIS

Country of Publication
India
Country of Input or Organization
India
INIS RN
23021292
Subject category
S38: RADIATION CHEMISTRY, RADIOCHEMISTRY AND NUCLEAR CHEMISTRY; S36: MATERIALS SCIENCE;
Resource subtype / Literary indicator
Conference
Descriptors DEI
ACTIVATION ENERGY; CATALYSTS; CHEMICAL RADIATION EFFECTS; CHEMICAL REACTION KINETICS; COBALT OXIDES; COBALT 60; DECOMPOSITION; DOSE-RESPONSE RELATIONSHIPS; ELECTRIC CONDUCTIVITY; ELECTRON SPIN RESONANCE; GAMMA RADIATION; HYDROGEN PEROXIDE; LANTHANUM OXIDES; OXIDATION; PHYSICAL RADIATION EFFECTS; RADIATION DOSES; REDUCTION; STRONTIUM OXIDES; VALENCE
Descriptors DEC
ALKALINE EARTH METAL COMPOUNDS; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; CHALCOGENIDES; CHEMICAL REACTIONS; COBALT COMPOUNDS; COBALT ISOTOPES; ELECTRICAL PROPERTIES; ELECTROMAGNETIC RADIATION; ENERGY; HYDROGEN COMPOUNDS; INTERMEDIATE MASS NUCLEI; INTERNAL CONVERSION RADIOISOTO; IONIZING RADIATIONS; ISOMERIC TRANSITION ISOTOPES; ISOTOPES; KINETICS; LANTHANUM COMPOUNDS; MAGNETIC RESONANCE; MINUTES LIVING RADIOISOTOPES; NUCLEI; ODD-ODD NUCLEI; OXIDES; OXYGEN COMPOUNDS; PEROXIDES; PHYSICAL PROPERTIES; RADIATION EFFECTS; RADIATIONS; RADIOISOTOPES; RARE EARTH COMPOUNDS; REACTION KINETICS; RESONANCE; STRONTIUM COMPOUNDS; TRANSITION ELEMENT COMPOUNDS; YEARS LIVING RADIOISOTOPES