Chemical synthesis of flower-like hybrid Cu(OH) 2 /CuO electrode: Application of polyvinyl alcohol and triton X-100 to enhance supercapacitor performance.

Autor: Shinde SK; Department of Biological and Environmental Science, College of Life Science and Biotechnology, Dongguk University-Seoul, Ilsandong-gu, 10326, Goyang-si, Gyeonggi-do, South of Korea., Fulari VJ; Holography and Materials Research Laboratory, Department of Physics, Shivaji University, Kolhapur, Maharashtra, 416 004, India., Kim DY; Department of Biological and Environmental Science, College of Life Science and Biotechnology, Dongguk University-Seoul, Ilsandong-gu, 10326, Goyang-si, Gyeonggi-do, South of Korea., Maile NC; Holography and Materials Research Laboratory, Department of Physics, Shivaji University, Kolhapur, Maharashtra, 416 004, India., Koli RR; Holography and Materials Research Laboratory, Department of Physics, Shivaji University, Kolhapur, Maharashtra, 416 004, India., Dhaygude HD; Department of Biological and Environmental Science, College of Life Science and Biotechnology, Dongguk University-Seoul, Ilsandong-gu, 10326, Goyang-si, Gyeonggi-do, South of Korea; Holography and Materials Research Laboratory, Department of Physics, Shivaji University, Kolhapur, Maharashtra, 416 004, India., Ghodake GS; Department of Biological and Environmental Science, College of Life Science and Biotechnology, Dongguk University-Seoul, Ilsandong-gu, 10326, Goyang-si, Gyeonggi-do, South of Korea. Electronic address: ghodakegs@gmail.com.
Jazyk: angličtina
Zdroj: Colloids and surfaces. B, Biointerfaces [Colloids Surf B Biointerfaces] 2017 Aug 01; Vol. 156, pp. 165-174. Date of Electronic Publication: 2017 May 09.
DOI: 10.1016/j.colsurfb.2017.05.018
Abstrakt: In this research article, we report hybrid nanomaterials of copper hydroxide/copper oxide (Cu(OH) 2 /CuO). A thin films were prepared by using a facile and cost-effective successive ionic layer adsorption and reaction (SILAR) method. As-synthesized and hybrid Cu(OH) 2 /CuO with two different surfactants polyvinyl alcohol (PVA) and triton-X 100 (TRX-100) was prepared having distinct morphological, structural, and supercapacitor properties. The surface of the thin film samples were examined by scanning electron microscopy (SEM). A nanoflower-like morphology of the Cu(OH) 2 /CuO nanostructures arranged vertically was evidenced on the stainless steel substrate. The surface was well covered by nanoflake-like morphology and formed a uniform Cu(OH) 2 /CuO nanostructures after treating with surfactants. X-ray diffraction patterns were used to confirm the hybrid phase of Cu(OH) 2 /CuO materials. The electrochemical properties of the pristine Cu(OH) 2 /CuO, PVA:Cu(OH) 2 /CuO, TRX-100:Cu(OH) 2 /CuO films were observed by cyclic voltammetry, galvanostatic charge/discharge, and electrochemical impedance spectroscopy technique. The electrochemical examination reveals that the Cu(OH) 2 /CuO electrode has excellent specific capacitance, 292, 533, and 443Fg -1 with pristine, PVA, and TRX-100, respectively in 1M Na 2 SO 4 electrolyte solution. The cyclic voltammograms (CV) of Cu(OH) 2 /CuO electrode shows positive role of the PVA and TRX-100 to enhance supercapacitor performance.
(Copyright © 2017 Elsevier B.V. All rights reserved.)
Databáze: MEDLINE
Externí odkaz: