Influence of Synthesis Temperature on the Growth and Surface Morphology of Co3O4 Nanocubes for Supercapacitor Applications
Rashmirekha Samal,
Barsha Dash,
Chinmaya Kumar Sarangi,
Kali Sanjay,
Tondepu Subbaiah,
Gamini Senanayake,
Manickam Minakshi
Affiliations
Rashmirekha Samal
Academy of Scientific and Innovative Research (AcSIR), CSIR-Institute of Minerals and Materials Technology (CSIR-IMMT) Campus, Bhubaneswar 751013, India
Barsha Dash
Academy of Scientific and Innovative Research (AcSIR), CSIR-Institute of Minerals and Materials Technology (CSIR-IMMT) Campus, Bhubaneswar 751013, India
Chinmaya Kumar Sarangi
CSIR-Institute of Minerals and Materials Technology, Bhubaneswar 751013, India
Kali Sanjay
Academy of Scientific and Innovative Research (AcSIR), CSIR-Institute of Minerals and Materials Technology (CSIR-IMMT) Campus, Bhubaneswar 751013, India
Tondepu Subbaiah
Office of the R&D, K. L. University, Vaddeswaram 522502, Guntur, India
Gamini Senanayake
School of Engineering and Information Technology, Murdoch University, Murdoch, WA 6150, Australia
Manickam Minakshi
School of Engineering and Information Technology, Murdoch University, Murdoch, WA 6150, Australia
A facile hydrothermal route to control the crystal growth on the synthesis of Co3O4 nanostructures with cube-like morphologies has been reported and tested its suitability for supercapacitor applications. The chemical composition and morphologies of the as-prepared Co3O4 nanoparticles were extensively characterized using X-ray diffraction (XRD) and transmission electron microscopy (TEM). Varying the temperature caused considerable changes in the morphology, the electrochemical performance increased with rising temperature, and the redox reactions become more reversible. The results showed that the Co3O4 synthesized at a higher temperature (180 °C) demonstrated a high specific capacitance of 833 F/g. This is attributed to the optimal temperature and the controlled growth of nanocubes.
