Perovskite-type oxides, oxygen evolution

An increasing amount of attention is being given to oxides as possible anodes for oxygen evolution because of the importance of this reaction in water electrolysis. In this connection, numerous studies have been carried out on noble metal oxides, spinel and perovskite type oxides, and other oxides such as lead and manganese dioxide. Kinetic parameters for the oxygen evolution reaction at a variety of single oxides and mixed oxides are shown in Table 3. 

Jain AN, Tiwari SK, Singh RN, Chartier P (1995) Low-temperature synthesis of perovskite-type oxides of Lanthanum and Cobalt and their electrocatalytic properties for oxygen evolution in alkaline-solutions. J Chem Soc Faraday Trans 91 1871-1875... 

In addition to the mechanisms of oxygen evolution at nickel anodes [44], the surface properties of C03O4 electrodes have also been investigated [45]. Another possibility is the use of mixed oxides of a spinel or perovskite type for anode oxygen evolution examples are Lao.sSro.sCoOs, NiCo204-PTFE, and C03O4 [46]. Representative results of electrochemical measurements in an alkahne electrolyzer are given in Table 8.5. 

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