Metal oxides have attracted growing interest due to their large scale properties and application
in various fields. These oxides have exhibited remarkable electrochemical properties. They are
not only cheap, friendly to use, easy to synthesize but also are presenting better energy storage efficiency
in response to the existing pure metal oxide materials. In this review, we shall try to focus on
the importance of energy storage devices, their importance in the current circumstances. This review
also includes an introduction about mixed metal oxides and their synthesis using various techniques.
Moreover, a simple comparison also has been given. Similarly, an effort also has been made to explain
which technique is more beneficial and cost effective presently and similarly ensure green synthesis.
Finally, an effort has been made to highlight the applications of these mixed metal oxides in the modern
energy storage devices.
Keywords: Mixed metal oxides, electrodes, batteries, capacitors, supercapacitors, conventional methods, microwave methods
and energy storage.
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