Efficient electrochemical performance of hydrothermally synthesized mixed transition metal oxide nanostructures

Mixed transition metal oxides (MOs) have emerged as highly proficient electrode specimens owing to their outstanding capacitance values, thus, producing remarkable electrochemical outputs. In this context, hydrothermal method was used to synthesize MnCo2O4 nanostructures mediated via Ni substitution for better insight of optimized electrochemical features. The inverse spinel structure was observed throughout the as-synthesized series, while scanning electron microscope images exposed an increase in particle size by Ni substitution. Elemental mapping displays the exact pictorial visualization of doped compositions. An electrochemical window of 0.20-0.57 V along with varying scan rates of 0.009-0.08 Vs(-1) was set for cyclic voltammetry (CV) measurements which manifested pseudo-capacitive behavior of compositions. The perceived Nyquist plot displayed less charge transfer resistance. All the obtained results along with keen analysis of micrographic images had given a firm assurance that the synthesized Mn0.1Ni0.9Co2O4 composition is extraordinarily advantageous nanostructure to be a potential candidate as electrode materials.

Automated summary

This study synthesized MnCo2O4 nanostructures mediated via Ni substitution using the hydrothermal method, and the analysis of the obtained results demonstrated the exceptional electrochemical characteristics of the synthesized material, suggesting its potential as an electrode material.