THE INFLUENCE OF TEMPERATURE ON THE KINETICS OF CHEMISORPTION OF HYDROGEN ON ZINC OXIDE
- 1 November 1959
- journal article
- Published by Canadian Science Publishing in Canadian Journal of Chemistry
- Vol. 37 (11) , 1916-1922
- https://doi.org/10.1139/v59-280
Abstract
The kinetics of hydrogen adsorption by ZnO have been measured at constant pressures of 403 mm Hg over temperatures from 0 °C to 257 °C. Two distinct consecutive kinetic stages occur at all temperatures, each stage being precisely expressed by the Elovich equation. The rates and extents of adsorption increase in the temperature ranges 0–80 °C and 110–200 °C and decrease in the range 80–110 °C. The change with temperature of the constants a and 1/α of the Elovich equation parallels changes in the amount adsorbed with temperature.Keywords
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