Facile synthesis of nanoporous sea sponge architecture in a binary metal oxide

A novel galvanostatic electrochemical technique has been employed to synthesize cobalt-nickel mixed oxide via a two-step route involving electrodeposition followed by calcination to form a binary metal oxide. A diaphragm cell was used for the electro-deposition of the binary hydroxide at room temperature, utilizing an electrolyte comprising nitrate and/or sulfate bath of the corresponding metal ions at pH 4. The electrodeposited product was calcined at 300 °C to obtain the desired oxide material. The formation of the binary metal oxide has been confirmed through various characterization techniques. This research demonstrates a feasible method for creating nanoporous structures while providing insights into electrochemical performance, which is critical for applications in energy storage and conversion devices.