Fig. 3From: Electrochemical study of TiO2 in aqueous AlCl3 electrolyte via vacuum impregnation for superior high-rate electrode performanceCV responses from TiO2 at 10 mV s− 1. a shows the 5th, 18th and 25th cycles when scanned between potential limits of 0 V to − 1.3 V vs SCE. b shows the 5th, 25th and 80th scan of a separate electrode with potential limits of 0 V to − 1.0 V vs SCEBack to article page