“…Large number of methods have been developed for the preparation of ZTO, such as thermal evaporation [23,24], high temperature calcination [12,25], solgel synthesis [26,27], mechanical grinding [28] and hydrothermal reaction [6,10,11,18,[29][30][31]. Among these methods, the electrochemical method has aroused a considerable interest in the synthesis of nanosized metal metal-oxide powder and films because of its simplicity, low temperature operation process and viability of commercial production.…”