Arulraj, I. and Chandrasekaran, R. and Venkatesan, V.K. (1987) The lanthanum barium manganate, la(l-4)Ba2MnO3 - A possible electrocatalyst for oxygen evolution reaction in alkaline medium. Bulletin of Electrochemistry , 3 (5). pp. 443-449. ISSN 0256-1654

PDF - Published Version
Download (446Kb) | Preview


Three different non-stoichiometric compositions of lanthanum barium manganate (LBM) have been synthesized and investigated for its possible application as anode catalyst in alkaline water electrolysis. The results of these investigations have shown that LBM is a good electrocatalyst for the oxygen evolution reaction. Of the three oxides examined, La2., Ba2Mn03 has been found to be the best. The above oxide electrodes have been scaled up from 1 cdt o 10 cdi n apparent area. The electrochemical stability over an operation duration of 500 hrs and the resulting time variation effect on the anode potential have been brought out at normal alkaline water electrolysis conditions of 3 KA.m-2 and 80% when a reduction of 0.1 V - 0.15 V in oxygen overpotential has been observed on these catalysts as compared to that of smooth nickel electrodes under identical conditions. The electrocatalytic activity of the oxides has been discussed from the point of view of structural distortion and means for further improvement have been suggested.

Item Type: Article
Uncontrolled Keywords: Electrocatalysis; perovskite type oxide; oxygen evolution
Subjects: Electrochemical Power Sources
Depositing User: ttbdar CECRI
Date Deposited: 23 Mar 2012 13:54
Last Modified: 23 Mar 2012 13:54

Actions (login required)

View Item View Item