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Oxidation‐Reduction Kinetics in MnO
Author(s) -
BRANSKY I.,
TALLAN N. M.,
WIMMER J. M.,
GVISHI M.
Publication year - 1971
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1971.tb12161.x
Subject(s) - kinetics , gravimetric analysis , inert gas , dilution , thermodynamics , redox , materials science , electrical resistivity and conductivity , reduction (mathematics) , inert , chemical kinetics , chemistry , analytical chemistry (journal) , mineralogy , composite material , metallurgy , chromatography , physics , geometry , mathematics , organic chemistry , quantum mechanics , electrical engineering , engineering
The oxidation‐reduction kinetics of MnO in CO/CO 2 atmospheres at 1230°C were measured by gravimetric and electrical conductivity techniques. The dependence of the kinetics on time, inert gas dilution, total pressure, and specimen thickness indicates that the kinetics are controlled by a slow surface reaction step. Attempts to analyze the data quantitatively using equations for linear heat flow in a solid with a radiation boundary condition were unsuccessful.