γ-ray-induced chemisorption of oxygen on titania

M. Spivack; W. H. Cropper; J. S. Dranoff

doi:10.1016/0020-708X(67)90095-6

γ-ray-induced chemisorption of oxygen on titania

M. Spivack^*, W. H. Cropper, J. S. Dranoff

^*Corresponding author for this work

Chemical and Biological Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

Static systems comprised of degassed anatase and oxygen at initial pressures ranging from 38 to 610 μ were irradiated with cobalt-60 γ-rays and the pressure was measured simultaneously. A distinct increase in the rate of chemisorption at the commencement of irradiation was observed; after prolonged irradiation a nearly steady-state pressure was reached. The data were found to fit an Elovich-type rate equation, with the parameters showing reasonable behavior with variation in the initil pressure. The effect was found to be sensitive to the temperature used for degassing the anatase and to the run temperature. The observed effect did not seem to be related to factors which altered the rate of diffusion.

Original language	English (US)
Pages (from-to)	145-152
Number of pages	8
Journal	The International Journal Of Applied Radiation And Isotopes
Volume	18
Issue number	3
DOIs	https://doi.org/10.1016/0020-708X(67)90095-6
State	Published - Mar 1967

ASJC Scopus subject areas

Radiation
Nuclear Energy and Engineering
Radiology Nuclear Medicine and imaging

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title = "γ-ray-induced chemisorption of oxygen on titania",

abstract = "Static systems comprised of degassed anatase and oxygen at initial pressures ranging from 38 to 610 μ were irradiated with cobalt-60 γ-rays and the pressure was measured simultaneously. A distinct increase in the rate of chemisorption at the commencement of irradiation was observed; after prolonged irradiation a nearly steady-state pressure was reached. The data were found to fit an Elovich-type rate equation, with the parameters showing reasonable behavior with variation in the initil pressure. The effect was found to be sensitive to the temperature used for degassing the anatase and to the run temperature. The observed effect did not seem to be related to factors which altered the rate of diffusion.",

author = "M. Spivack and Cropper, {W. H.} and Dranoff, {J. S.}",

year = "1967",

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AU - Spivack, M.

AU - Cropper, W. H.

AU - Dranoff, J. S.

PY - 1967/3

Y1 - 1967/3

N2 - Static systems comprised of degassed anatase and oxygen at initial pressures ranging from 38 to 610 μ were irradiated with cobalt-60 γ-rays and the pressure was measured simultaneously. A distinct increase in the rate of chemisorption at the commencement of irradiation was observed; after prolonged irradiation a nearly steady-state pressure was reached. The data were found to fit an Elovich-type rate equation, with the parameters showing reasonable behavior with variation in the initil pressure. The effect was found to be sensitive to the temperature used for degassing the anatase and to the run temperature. The observed effect did not seem to be related to factors which altered the rate of diffusion.

AB - Static systems comprised of degassed anatase and oxygen at initial pressures ranging from 38 to 610 μ were irradiated with cobalt-60 γ-rays and the pressure was measured simultaneously. A distinct increase in the rate of chemisorption at the commencement of irradiation was observed; after prolonged irradiation a nearly steady-state pressure was reached. The data were found to fit an Elovich-type rate equation, with the parameters showing reasonable behavior with variation in the initil pressure. The effect was found to be sensitive to the temperature used for degassing the anatase and to the run temperature. The observed effect did not seem to be related to factors which altered the rate of diffusion.

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γ-ray-induced chemisorption of oxygen on titania

Abstract

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