Porous CuO nanosheet clusters prepared by a surfactant assisted hydrothermal method for high performance supercapacitors

Girish S. Gund, Deepak P. Dubal, Dattatray Dhawale, Sujata S. Shinde, Chandrakant D. Lokhande

Research output: Contribution to journalArticle

47 Citations (Scopus)

Abstract

This investigation demonstrates the surfactant assisted fabrication of nanosheet clusters of caddice clew, yarn ball and cabbage slash-like microstructures of copper oxide (CuO) in thin film form directly grown onto a stainless steel substrate using a binder free hydrothermal approach. The impact of organic surfactants such as Triton X-100 (TRX) and polyvinyl alcohol (PVA) on the structural, morphological, surface area and electrochemical properties of CuO is investigated. The X-ray diffraction study reveals the structure-directing ability of the organic surfactants and confirms the nanocrystalline nature of the CuO thin films. Additionally, these CuO microstructures show excellent surface properties like uniform surface morphology, good surface area and a uniform pore size distribution. The electrochemical tests manifest a high specific capacitance of 535 F g-1 at a scan rate of 5 mV s -1 with 90% capacitive retention after 1000 cycles and low dissolution and charge transfer resistance of the yarn ball-like structured CuO thin film. This approach renders a plain picture of the process-structure- property relationship in thin film synthesis and provides significant schemes to boost the performance of supercapacitor electrodes.

Original languageEnglish
Pages (from-to)24099-24107
Number of pages9
JournalRSC Advances
Volume3
Issue number46
DOIs
Publication statusPublished - 14 Dec 2013
Externally publishedYes

Fingerprint

Nanosheets
Surface-Active Agents
Surface active agents
Thin films
Yarn
Polyvinyl Alcohol
Microstructure
Copper oxides
Polyvinyl alcohols
Stainless Steel
Octoxynol
Electrochemical properties
Pore size
Surface properties
Binders
Surface morphology
Charge transfer
Dissolution
Capacitance
Stainless steel

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Chemistry(all)

Cite this

Porous CuO nanosheet clusters prepared by a surfactant assisted hydrothermal method for high performance supercapacitors. / Gund, Girish S.; Dubal, Deepak P.; Dhawale, Dattatray; Shinde, Sujata S.; Lokhande, Chandrakant D.

In: RSC Advances, Vol. 3, No. 46, 14.12.2013, p. 24099-24107.

Research output: Contribution to journalArticle

Gund, Girish S. ; Dubal, Deepak P. ; Dhawale, Dattatray ; Shinde, Sujata S. ; Lokhande, Chandrakant D. / Porous CuO nanosheet clusters prepared by a surfactant assisted hydrothermal method for high performance supercapacitors. In: RSC Advances. 2013 ; Vol. 3, No. 46. pp. 24099-24107.
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