THE DISSOLUTION PROCESS OF THE NIO CATHODES FOR MOLTEN-CARBONATE FUEL-CELLS - STATE-OF-THE-ART

In this review article the analysis of the main problems related to th e use of NiO as material for cathodes in Molten Carbonate Fuel Cells ( MCFC) is reported. Thus, the most significant evidences of the mechani sm of NiO dissolution have been reported as well as its correlation wi th the basicity of the carbonate melt, composition of the reactants ga ses and temperature. Some hypotheses described here have been also ver ified experimentally and the results of this validation are reported. In the final section, we have described the most promising alternative solutions to this problem and the advantages and shortcomings of thes e alternatives. (C) 1998 John Wiley & Sons, Ltd.