“…Metal oxides and mixed metal oxides (MMOs) are of significant interest as electrode materials in a broad range of device applications, including Li-ion batteries, 1−3 electrochemical capacitors, 2,4,5 fuel cells, 6,7 gas sensors, 8,9 thin film transistors 10−12 and electrochemical water oxidation catalysts. 13−16 Many synthetic methods have been reported for the production of high-purity MMOs, including the mechanical mixing of metal precursors, 17−19 spray pyrolysis, 20,21 sol−gel decomposition, 11,22−24 hydrothermal processing, 24−27 polymerbased processes, 28,29 and solution-phase thermal decomposition of metal−organic precursors.…”