Journal of Solid State Electrochemistry

, Volume 12, Issue 2, pp 207–211

Surfactant stabilized nanopetals morphology of α-MnO2 prepared by microemulsion method

Short Communication

DOI: 10.1007/s10008-007-0364-7

Cite this article as:
Devaraj, S. & Munichandraiah, N. J Solid State Electrochem (2008) 12: 207. doi:10.1007/s10008-007-0364-7


α-Manganese dioxide is synthesized in a microemulsion medium by a redox reaction between KMnO4 and MnSO4 in presence of sodium dodecyl sulphate as a surface active agent. The morphology of MnO2 resembles nanopetals, which are spread parallel to the field. The material is further characterized by powder X-ray diffraction, energy dispersive analysis of X-ray, and Brunauer–Emmett–Teller surface area. Supercapacitance property of α-MnO2 nanopetals is studied by cyclic voltammetry and galvanostatic charge–discharge cycling. High values of specific capacitance are obtained.


Manganese dioxide Microemulsion Nanopetals Supercapacitor Cyclic voltammetry 

Copyright information

© Springer-Verlag 2007

Authors and Affiliations

  1. 1.Department of Inorganic and Physical ChemistryIndian Institute of ScienceBangaloreIndia

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