A novel chemical synthesis and characterization of Mn3O4 thin films for supercapacitor application

D. P. Dubal, Dattatray Dhawale, R. R. Salunkhe, S. M. Pawar, C. D. Lokhande

Research output: Contribution to journalArticle

119 Citations (Scopus)

Abstract

Mn3O4 thin films have been prepared by novel chemical successive ionic layer adsorption and reaction (SILAR) method. Further these films were characterized for their structural, morphological and optical properties by means of X-ray diffraction (XRD), Fourier transform infrared spectrum (FTIR), field emission scanning electron microscopy (FESEM), wettability test and optical absorption studies. The XRD pattern showed that the Mn3O4 films exhibit tetragonal hausmannite structure. Formation of manganese oxide compound was confirmed from FTIR studies. The optical absorption showed existence of direct optical band gap of energy 2.30 eV. Mn3O4 film surface showed hydrophilic nature with water contact angle of 55°. The supercapacitive properties of Mn3O4 thin film investigated in 1 M Na2SO4 electrolyte showed maximum supercapacitance of 314 F g-1 at scan rate 5 mV s-1.

Original languageEnglish
Pages (from-to)4411-4416
Number of pages6
JournalApplied Surface Science
Volume256
Issue number14
DOIs
Publication statusPublished - 1 May 2010
Externally publishedYes

Fingerprint

Thin films
Light absorption
Fourier transforms
Infrared radiation
X ray diffraction
Manganese oxide
Optical band gaps
Field emission
Diffraction patterns
Contact angle
Wetting
Structural properties
Optical properties
Electrolytes
Adsorption
Scanning electron microscopy
Supercapacitor
manganese oxide
Water

Keywords

  • MnO thin films
  • SILAR
  • Supercapacitor
  • Surface morphology

ASJC Scopus subject areas

  • Surfaces, Coatings and Films

Cite this

A novel chemical synthesis and characterization of Mn3O4 thin films for supercapacitor application. / Dubal, D. P.; Dhawale, Dattatray; Salunkhe, R. R.; Pawar, S. M.; Lokhande, C. D.

In: Applied Surface Science, Vol. 256, No. 14, 01.05.2010, p. 4411-4416.

Research output: Contribution to journalArticle

Dubal, D. P. ; Dhawale, Dattatray ; Salunkhe, R. R. ; Pawar, S. M. ; Lokhande, C. D. / A novel chemical synthesis and characterization of Mn3O4 thin films for supercapacitor application. In: Applied Surface Science. 2010 ; Vol. 256, No. 14. pp. 4411-4416.
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