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
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