INVESTIGADORES
CANEIRO Alberto
artículos
Título:
Electrocatalytic Properties and Nonstoichiometry of the High Temperature Air Electrode Lal-xSrxMn03
Autor/es:
A. HAMMOUCHE; E. SIEBERT; A. HAMMOU; M. KLEITZ; A. CANEIRO
Revista:
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
Editorial:
ELECTROCHEMICAL SOC INC
Referencias:
Año: 1991 vol. 138 p. 1212 - 1216
ISSN:
0013-4651
Resumen:
Two electrochemical techniques have been applied to characterize the electrocatalytic properties of Lal_=Sr=MnO~ forthe high-temperature reduction of oxygen. The results are correlated with accurate thermogravimetric measurements.The electrocatalytic behavior is ascribed to mobile oxide vacancies generated by the cathodic polarization. The electrodepotential at which this process becomes efficient varies significantly with the strontium dopant concentration.
