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Title: Simple route for the synthesis of supercapacitive Co-Ni mixed hydroxide thin films

Abstract

Highlights: Black-Right-Pointing-Pointer Novel method for deposition of Co-Ni mixed hydroxide. Black-Right-Pointing-Pointer Nanoparticle network of Co-Ni hydroxide. Black-Right-Pointing-Pointer High specific capacitance of 672 F g{sup -1}. Black-Right-Pointing-Pointer High discharge/charge rates. -- Abstract: Facile synthesis of Co-Ni mixed hydroxides films with interconnected nanoparticles networks through two step route is successfully established. These films have been characterized by X-ray diffraction (XRD), Fourier transform infrared technique (FTIR), scanning electron microscopy (SEM) and wettability test. Co-Ni film formation is confirmed from XRD and FTIR study. SEM shows that the surface of Co-Ni films is composed of interconnected nanoparticles. Contact angle measurement revealed the hydrophilic nature of films which is feasible for the supercapacitor. The electrochemical performance of the film is evaluated by cyclic voltammetry, and constant-current charge/discharge cycling techniques. Specific capacitance of the Co-Ni mixed hydroxide electrode achieved 672 F g{sup -1}. Impedance analysis shows that Co-Ni mixed hydroxide electrode provides less resistance for the intercalation and de-intercalation of ions. The Co-Ni mixed electrode exhibited good charge/discharge rate at different current densities. The results demonstrated that Co-Ni mixed hydroxide composite is very promising for the next generation high performance electrochemical supercapacitors.

Authors:
 [1]; ;  [1]
  1. Thin Film Physics Laboratory, Department of Physics, Shivaji University, Kolhapur 416004 (M.S.) (India)
Publication Date:
OSTI Identifier:
22212518
Resource Type:
Journal Article
Journal Name:
Materials Research Bulletin
Additional Journal Information:
Journal Volume: 47; Journal Issue: 5; Other Information: Copyright (c) 2012 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0025-5408
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 77 NANOSCIENCE AND NANOTECHNOLOGY; CAPACITANCE; CURRENT DENSITY; DEPOSITION; FOURIER TRANSFORMATION; HYDROXIDES; INFRARED SPECTRA; NANOSTRUCTURES; SCANNING ELECTRON MICROSCOPY; SYNTHESIS; THIN FILMS; X-RAY DIFFRACTION

Citation Formats

Dubal, D. P., Department of Materials Science and Engineering, Gwangju Institute of Science and Technology, 261 Cheomdan-gwagiro, Buk-gu, Gwangju 500-712, Jagadale, A. D., Patil, S. V., and Lokhande, C.D., E-mail: l_chandrakant@yahoo.com. Simple route for the synthesis of supercapacitive Co-Ni mixed hydroxide thin films. United States: N. p., 2012. Web. doi:10.1016/J.MATERRESBULL.2012.01.026.
Dubal, D. P., Department of Materials Science and Engineering, Gwangju Institute of Science and Technology, 261 Cheomdan-gwagiro, Buk-gu, Gwangju 500-712, Jagadale, A. D., Patil, S. V., & Lokhande, C.D., E-mail: l_chandrakant@yahoo.com. Simple route for the synthesis of supercapacitive Co-Ni mixed hydroxide thin films. United States. https://doi.org/10.1016/J.MATERRESBULL.2012.01.026
Dubal, D. P., Department of Materials Science and Engineering, Gwangju Institute of Science and Technology, 261 Cheomdan-gwagiro, Buk-gu, Gwangju 500-712, Jagadale, A. D., Patil, S. V., and Lokhande, C.D., E-mail: l_chandrakant@yahoo.com. Tue . "Simple route for the synthesis of supercapacitive Co-Ni mixed hydroxide thin films". United States. https://doi.org/10.1016/J.MATERRESBULL.2012.01.026.
@article{osti_22212518,
title = {Simple route for the synthesis of supercapacitive Co-Ni mixed hydroxide thin films},
author = {Dubal, D. P. and Department of Materials Science and Engineering, Gwangju Institute of Science and Technology, 261 Cheomdan-gwagiro, Buk-gu, Gwangju 500-712 and Jagadale, A. D. and Patil, S. V. and Lokhande, C.D., E-mail: l_chandrakant@yahoo.com},
abstractNote = {Highlights: Black-Right-Pointing-Pointer Novel method for deposition of Co-Ni mixed hydroxide. Black-Right-Pointing-Pointer Nanoparticle network of Co-Ni hydroxide. Black-Right-Pointing-Pointer High specific capacitance of 672 F g{sup -1}. Black-Right-Pointing-Pointer High discharge/charge rates. -- Abstract: Facile synthesis of Co-Ni mixed hydroxides films with interconnected nanoparticles networks through two step route is successfully established. These films have been characterized by X-ray diffraction (XRD), Fourier transform infrared technique (FTIR), scanning electron microscopy (SEM) and wettability test. Co-Ni film formation is confirmed from XRD and FTIR study. SEM shows that the surface of Co-Ni films is composed of interconnected nanoparticles. Contact angle measurement revealed the hydrophilic nature of films which is feasible for the supercapacitor. The electrochemical performance of the film is evaluated by cyclic voltammetry, and constant-current charge/discharge cycling techniques. Specific capacitance of the Co-Ni mixed hydroxide electrode achieved 672 F g{sup -1}. Impedance analysis shows that Co-Ni mixed hydroxide electrode provides less resistance for the intercalation and de-intercalation of ions. The Co-Ni mixed electrode exhibited good charge/discharge rate at different current densities. The results demonstrated that Co-Ni mixed hydroxide composite is very promising for the next generation high performance electrochemical supercapacitors.},
doi = {10.1016/J.MATERRESBULL.2012.01.026},
url = {https://www.osti.gov/biblio/22212518}, journal = {Materials Research Bulletin},
issn = {0025-5408},
number = 5,
volume = 47,
place = {United States},
year = {2012},
month = {5}
}