Preparation and electrochemical performance of novel MWCNT incorporated layered Cu₂MnSnS₄ as an electrode for supercapacitor

In this report, we have synthesized MWCNT incorporated quaternary chalcogenide Cu₂MnSnS₄ (MCMTS) nanoplates by one step hydrothermal method using oxalic acid as directing agent for energy storage application. The structure and microstructure of the chalcogenide have been characterized by analyzing X-ray diffraction patterns, FESEM images HRTEM images. Optical properties are evaluated by UV-visible and PL spectroscopy. FESEM and Tem images confirms layer like structure of the sample. The electrochemical performances of (MCMTS) material have been investigated by cyclic voltammetry, galvanostatic charge-discharge measurement technique and EIS spectroscopy. The as-prepared chalcogenide material demonstrated a high specific capacitance of 450 F g⁻¹ at a current density of .2 A g^-1. However, to the best of our knowledge, the construction of Cu₂MnSnS₄ (MCMTS) with layer like morphology having superior electrochemical performance has been reported for the first time. So this low cost earth-abundant material can be easily used for large scale sustainable energy storage systems. (author)