['This', 'could', 'then', 'cause', 'an', 'increase', 'in', 'the', 'activity', 'of', 'oxide', 'ions', 'existing', 'within', 'the', 'melt', 'and', 'hence', 'inhibit', 'the', 'electrochemical', 'reduction', '–', 'exploration', 'of', 'the', 'microstructure', 'of', 'working', 'electrodes', 'will', 'be', 'the', 'focus', 'of', 'future', 'work', '.']