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Effect of reaction time on the synthesis and electrochemical properties of Mn3O4 nanoparticles by microwave assisted reflux method

IR@CECRI: CSIR-Central Electrochemical Research Institute, Karaikudi

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Title Effect of reaction time on the synthesis and electrochemical properties of Mn3O4 nanoparticles by microwave assisted reflux method
 
Creator Vijayasankar, K.
Senthil, S.T.
Berchmans, L.J.
Sanjeeviraja, C.
Kalaiselvan, R.
 
Subject Nanotechnology
Electrochemical Materials Science
 
Description Spherical Mn3O4 nanoparticles were synthesized by microwave assisted reflux method at different reaction times (1, 5, 10, 15, and 20 min). The single phase formation of Mn3O4 nanoparticles was identified through XRD analysis. The FT-IR and Raman spectra revealed the presence of functional groups of Mn3O4 and further support the XRD results. The spherical morphology of Mn3O4 was identified via SEM analysis. The cyclic voltammetry analysis implies that 15 min synthesized Mn3O4 (MN-15) shows the higher specific capacitance of 135 F g−1 among all the prepared Mn3O4 electrodes. The EIS spectra of MN-15 substantiate the less charge-transfer resistance (Rct) of 0.553 �, when compared with the other samples. The discharge capacitance of MN-15 was 103 F g−1 at 0.5 mA cm−2 in 1 M NaNO3 solution. The cycling stability curve over 100 cycles implies that the discharge capacitance is increased from 47 to 68 F g−1 at 5 mA cm−2. This capacitance enhancement during cycling is due to the influence of phase or morphological variation of Mn3O4 electrodes
 
Publisher Elsevier
 
Date 2012
 
Type Article
PeerReviewed
 
Format application/pdf
 
Identifier http://cecri.csircentral.net/3022/1/001-2012.pdf
Vijayasankar, K. and Senthil, S.T. and Berchmans, L.J. and Sanjeeviraja, C. and Kalaiselvan, R. (2012) Effect of reaction time on the synthesis and electrochemical properties of Mn3O4 nanoparticles by microwave assisted reflux method. Applied Surface Science, 259. pp. 624-630. ISSN 0169-4332
 
Relation http://www.elsevier.com/locate/apsusc
http://cecri.csircentral.net/3022/