A report on hybrid CTAB stabilized Mn doped CuS dendrites nanocomposite as active electrode material for electrochemical pseudocapacitors

The structural, chemistry, morphology and electrochemical behavior of a CuS and Mn-doped CuS nanostructures by hydrothermal method were evaluated. We report on the characterization of a CuS and Mn doped CuS by XRD, XPS, SEM/EDS, FESEM, TEM/SAED, BET and electrochemical methods. The scanning electron microscopy and transmission electron microscopy images demonstrate sheet like nanostructures with each nanosheet diameter around 10 nm. Then the synthesized samples were utilized for electrochemical performance to modify the glassy carbon electrode (GCE). The electrochemical performance of the as-synthesized CTAB/CuS and CTAB/Mn (0.15 mM) doped CuS material was studied by cyclic voltammetry and electrical impedance spectroscopy. The BET surface area of (0.15 mM) Mn -CuS nanostructure was found to be 28.63 m2/g, pore volume is 0.083 cm3/g and pore size is 21.67 nm. These results demonstrate that CTAB/Mn doped CuS electrode delivered a high specific capacitance of 660 Fg  1 in a 2 M KOH aqueous electrolyte at 5mAcm-2at 2000 cycle and indicating their potential application as promising electrode materials for supercapacitors.