Self-assembled samarium selenide nanorods as a new electrode material for reliable supercapacitors

V.S. Kumbhar, A.C. Lokhande, N.R. Chodankar, N.S. Gaikwad, C.D. Lokhande

Index: 10.1016/j.matlet.2018.04.016

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Abstract

For the first time, cross-linked nanorods of samarium selenide (Sm2Se3) were self-assembled using the chemical route for reliable supercapacitors. The X-ray diffraction and X-ray photoelectron spectroscopy techniques confirmed the formation of crystalline Sm2Se3. The formation of Sm2Se3 across-linked nanorods was confirmed by field emission scanning electron microscopy technique. The cyclic voltammetry, charge-discharge, and electrochemical impedance spectroscopy were used to study the supercapacitive properties of the electrode. The highly porous network of the electrode resulted from this assembly exhibited excellent capacitive behavior with a maximum specific capacitance (316 F g-1) and cycling stability (87%) for 1000 charge-discharge cycles.