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Title: Growth, characterization and electrochemical properties of hierarchical CuO nanostructures for supercapacitor applications

Abstract

Graphical abstract: - Highlights: • Hierarchical CuO nanostructures were grown on Cu foil. • Monoclinic phase of CuO was grown. • XPS analysis revealed the presence of Cu(2p{sub 3/2}) and Cu(2p{sub 1/2}) on the surfaces. • Specific capacitance of 94 F/g was achieved for the CuO using cyclic voltammetry. • Impedance spectra show their pseudo capacitor applications. - Abstract: In this paper, we have investigated the electrochemical properties of hierarchical CuO nanostructures for pseudo-supercapacitor device applications. Moreover, the CuO nanostructures were formed on Cu substrate by in situ crystallization process. The as-grown CuO nanostructures were characterized using X-ray diffraction (XRD), Fourier transform-infra red spectroscopy (FT-IR), X-ray photoelectron spectroscopy and field emission-scanning electron microscope (FE-SEM) analysis. The XRD and FT-IR analysis confirm the formation of monoclinic CuO nanostructures. FE-SEM analysis shows the formation of leave like hierarchical structures of CuO with high uniformity and controlled density. The electrochemical analysis such as cyclic voltammetry and electrochemical impedance spectroscopy studies confirms the pseudo-capacitive behavior of the CuO nanostructures. Our experimental results suggest that CuO nanostructures will create promising applications of CuO toward pseudo-supercapacitors.

Authors:
 [1];  [1]
  1. Nanomaterials and System Laboratory, Department of Mechanical Engineering, Jeju National University, Jeju 690 756 (Korea, Republic of)
Publication Date:
OSTI Identifier:
22341758
Resource Type:
Journal Article
Journal Name:
Materials Research Bulletin
Additional Journal Information:
Journal Volume: 48; Journal Issue: 9; Other Information: Copyright (c) 2013 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; 37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; 77 NANOSCIENCE AND NANOTECHNOLOGY; COPPER OXIDES; CRYSTALLIZATION; FIELD EMISSION; FOURIER TRANSFORMATION; INFRARED SPECTRA; MONOCLINIC LATTICES; NANOSTRUCTURES; SCANNING ELECTRON MICROSCOPY; SUBSTRATES; VOLTAMETRY; X-RAY DIFFRACTION; X-RAY PHOTOELECTRON SPECTROSCOPY

Citation Formats

Krishnamoorthy, Karthikeyan, Kim, Sang-Jae, and Department of Mechatronics Engineering, Jeju National University, Jeju 690 756. Growth, characterization and electrochemical properties of hierarchical CuO nanostructures for supercapacitor applications. United States: N. p., 2013. Web. doi:10.1016/J.MATERRESBULL.2013.04.082.
Krishnamoorthy, Karthikeyan, Kim, Sang-Jae, & Department of Mechatronics Engineering, Jeju National University, Jeju 690 756. Growth, characterization and electrochemical properties of hierarchical CuO nanostructures for supercapacitor applications. United States. https://doi.org/10.1016/J.MATERRESBULL.2013.04.082
Krishnamoorthy, Karthikeyan, Kim, Sang-Jae, and Department of Mechatronics Engineering, Jeju National University, Jeju 690 756. 2013. "Growth, characterization and electrochemical properties of hierarchical CuO nanostructures for supercapacitor applications". United States. https://doi.org/10.1016/J.MATERRESBULL.2013.04.082.
@article{osti_22341758,
title = {Growth, characterization and electrochemical properties of hierarchical CuO nanostructures for supercapacitor applications},
author = {Krishnamoorthy, Karthikeyan and Kim, Sang-Jae and Department of Mechatronics Engineering, Jeju National University, Jeju 690 756},
abstractNote = {Graphical abstract: - Highlights: • Hierarchical CuO nanostructures were grown on Cu foil. • Monoclinic phase of CuO was grown. • XPS analysis revealed the presence of Cu(2p{sub 3/2}) and Cu(2p{sub 1/2}) on the surfaces. • Specific capacitance of 94 F/g was achieved for the CuO using cyclic voltammetry. • Impedance spectra show their pseudo capacitor applications. - Abstract: In this paper, we have investigated the electrochemical properties of hierarchical CuO nanostructures for pseudo-supercapacitor device applications. Moreover, the CuO nanostructures were formed on Cu substrate by in situ crystallization process. The as-grown CuO nanostructures were characterized using X-ray diffraction (XRD), Fourier transform-infra red spectroscopy (FT-IR), X-ray photoelectron spectroscopy and field emission-scanning electron microscope (FE-SEM) analysis. The XRD and FT-IR analysis confirm the formation of monoclinic CuO nanostructures. FE-SEM analysis shows the formation of leave like hierarchical structures of CuO with high uniformity and controlled density. The electrochemical analysis such as cyclic voltammetry and electrochemical impedance spectroscopy studies confirms the pseudo-capacitive behavior of the CuO nanostructures. Our experimental results suggest that CuO nanostructures will create promising applications of CuO toward pseudo-supercapacitors.},
doi = {10.1016/J.MATERRESBULL.2013.04.082},
url = {https://www.osti.gov/biblio/22341758}, journal = {Materials Research Bulletin},
issn = {0025-5408},
number = 9,
volume = 48,
place = {United States},
year = {Sun Sep 01 00:00:00 EDT 2013},
month = {Sun Sep 01 00:00:00 EDT 2013}
}