Behaviour of Ni, NiO and LixNi1−xO in molten alkali carbonates

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Ni, NiO and LixNi1−xO are the cathodic materials commonly used in molten carbonate fuel cells (MCFCs). Since the instability of the cathode is recognized as a major hindrance to MCFC development, in this report the behaviour of these nickel species in molten alkali carbonates is reviewed, analyzing step by step the processes of lithiation, dissolution and sinterization at cell operating temperatures.

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