A novel chemical synthesis of interlocked cubes of hausmannite Mn3O4 thin films for supercapacitor application

D. P. Dubal, D. S. Dhawale, R. R. Salunkhe, S. M. Pawar, V. J. Fulari, C. D. Lokhande

Research output: Contribution to journalArticle

72 Citations (Scopus)

Abstract

The interlocked cubes of hausmannite Mn3O4 thin films were synthesized by simple, inexpensive, and low temperature chemical route from urea containing bath. These films were characterized by using X-ray diffraction (XRD), field emission scanning electron microscope (FE-SEM), Fourier transform infrared spectra (FT-IR), optical absorption and wettability test. From the XRD patterns, polycrystalline nature of the hausmannite Mn3O4 films has been confirmed. Scanning electron micrographs revealed the development of three dimensional growths of interlocked cubes of Mn3O4 material. FT-IR spectrum bands confirmed the formation of Mn3O4 compound. The Mn3O4 film showed a direct optical band gap with energy 2.5 eV and hydrophilicity with water contact angle of 60°. Mn3O4 film when used in supercapacitor exhibited specific capacitance of 193 F g-1 in 1 M Na2SO4 electrolyte.

Original languageEnglish
Pages (from-to)218-221
Number of pages4
JournalJournal of Alloys and Compounds
Volume484
Issue number1-2
DOIs
Publication statusPublished - 18 Sep 2009
Externally publishedYes

Fingerprint

Thin films
Fourier transforms
Infrared radiation
Scanning
X ray diffraction
Optical band gaps
Hydrophilicity
Urea
Field emission
Light absorption
Diffraction patterns
Contact angle
Wetting
Capacitance
Electron microscopes
Electrolytes
Supercapacitor
manganese oxide
Electrons
Water

Keywords

  • Chemical deposition
  • Hausmannite MnO
  • Optical properties
  • Supercapacitor
  • Thin films

ASJC Scopus subject areas

  • Mechanical Engineering
  • Mechanics of Materials
  • Materials Chemistry
  • Metals and Alloys

Cite this

A novel chemical synthesis of interlocked cubes of hausmannite Mn3O4 thin films for supercapacitor application. / Dubal, D. P.; Dhawale, D. S.; Salunkhe, R. R.; Pawar, S. M.; Fulari, V. J.; Lokhande, C. D.

In: Journal of Alloys and Compounds, Vol. 484, No. 1-2, 18.09.2009, p. 218-221.

Research output: Contribution to journalArticle

Dubal, D. P. ; Dhawale, D. S. ; Salunkhe, R. R. ; Pawar, S. M. ; Fulari, V. J. ; Lokhande, C. D. / A novel chemical synthesis of interlocked cubes of hausmannite Mn3O4 thin films for supercapacitor application. In: Journal of Alloys and Compounds. 2009 ; Vol. 484, No. 1-2. pp. 218-221.
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