Title: Effect of annealing temperature on supercapacitive behaviour of hydrothermally synthesised ZnO nano-platelets

Authors: Arya Das; Rakesh Kumar Sahoo; Saroj Kumar Singh

Addresses: Department of Advanced Materials Technology, CSIR-Institute of Minerals and Materials Technology, Bhubaneswar 751013, Odisha, India ' Department of Advanced Materials Technology, CSIR-Institute of Minerals and Materials Technology, Bhubaneswar 751013, Odisha, India ' Department of Advanced Materials Technology, CSIR-Institute of Minerals and Materials Technology, Bhubaneswar 751013, Odisha, India

Abstract: ZnO nano-platelets have been prepared using a high pressure reactor via hydrothermal route and calcinated at different temperatures. The structure and morphology of the grown zinc oxide (ZnO) nano-platelets (NP) at different temperatures has thus been reported. Raman spectroscopy and X-ray diffraction (XRD) confirmed ZnO formation. The nano-platelets morphology was confirmed by scanning electron microscopy (SEM). The change in morphology and its adverse effect on the capacitive behaviour of the as-synthesised nano-platelets with change in calcinations temperature has also been discussed. The potential of these nano-platelets for possible applications in energy storing devices has been established.

Keywords: ZnO nano-platelets; cyclic voltammetry; supercapacitor.

DOI: 10.1504/IJNBM.2018.094241

International Journal of Nano and Biomaterials, 2018 Vol.7 No.3, pp.176 - 182

Received: 25 Apr 2017
Accepted: 26 Nov 2017
Published online: 23 Aug 2018 *

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