Kinetics of the reduction of orthorhombic and tetragonal lead oxides to lead with hydrogen
Autor: | Yu. A. Teplyakov, I. I. Ivanov, V. V. Ul’yanov, V. M. Shelemet’ev |
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Rok vydání: | 2015 |
Předmět: | |
Zdroj: | Kinetics and Catalysis. 56:304-307 |
ISSN: | 1608-3210 0023-1584 |
DOI: | 10.1134/s0023158415030076 |
Popis: | The kinetics of the reduction of orthorhombic and tetragonal lead oxides to lead with hydrogen has been investigated in the temperature range from 450 to 525°C. The degree of reduction of lead in the orthorhombic oxide as a function of the reaction time is described by the Erofeev equation in which the exponent n is unity. No significant difference in reactivity toward hydrogen between orthorhombic and tetragonal lead oxides has been revealed. The activation energy of the lead oxide reduction reaction is 85.8 ± 8.3 kJ/mol for the orthorhombic phase and 93.1 ± 5.0 kJ/mol for the tetragonal phase, so these values are equal within the activation energy determination error. |
Databáze: | OpenAIRE |
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