Calorimetric Study of Oxygen Bond Strength in the Surface Layer of Manganese Dioxide Full article
Journal |
Reaction Kinetics and Catalysis Letters
ISSN: 0133-1736 , E-ISSN: 1588-2837 |
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Output data | Year: 1977, Volume: 7, Number: 2, Pages: 133-138 Pages count : 5 DOI: 10.1007/BF02061828 | ||||
Tags | Oxygen; Dioxide; Enthalpy; Manganese; Catalysis | ||||
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Abstract:
The heat of oxygen removal from the MnO2 surface (q′s) during its reduction by carbon monoxide and the heat of reoxidation of the reduced surface by gaseous oxygen (qs) have been determined by a calorimetric method at 100 and 200°C. At 200°C both q′s and qs are close to the enthalpy of MnO2 transformation to Mn2O3. At 100°C the reduction of MnO2 takes place without any distinct formation of a phase of the lower oxide, however, it leads to significant changes in both the surface and the subsurface layer of the oxide.
Калориметрическим методом при 100° и 200°C определены теплоты отрыва кислорода от поверхности MnO2 (q′s) в процессе ее восстановления окисью углерода и теплоты реокисления восстановленной поверхности газообразным кислородом (qs). При 200°C как q′s, так и qs близки (с точностью до знака) к энтальпии перехода MnO2 в Mn2O3. При 100°C восстановление MnO2 протекает без изменение состояния не только самой поверхности, но и всего приповерхностного слоя окисла.
Cite:
Pankratiev Y.D.
, Turkov V.M.
, Forissier M.
, Portefaix J.L.
Calorimetric Study of Oxygen Bond Strength in the Surface Layer of Manganese Dioxide
Reaction Kinetics and Catalysis Letters. 1977. V.7. N2. P.133-138. DOI: 10.1007/BF02061828 WOS Scopus РИНЦ
Calorimetric Study of Oxygen Bond Strength in the Surface Layer of Manganese Dioxide
Reaction Kinetics and Catalysis Letters. 1977. V.7. N2. P.133-138. DOI: 10.1007/BF02061828 WOS Scopus РИНЦ
Dates:
Submitted: | Nov 18, 1976 |
Accepted: | Jan 25, 1977 |
Published print: | Jun 1, 1977 |
Identifiers:
Web of science | WOS:A1977DW14600003 |
Scopus | 2-s2.0-34250291534 |
Elibrary | 30992303 |
Chemical Abstracts | 1977:541810 |
Chemical Abstracts (print) | 87:141810 |
OpenAlex | W2025531190 |
Citing:
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