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Title: Supercapacitor behavior of α-MnMoO{sub 4} nanorods on different electrolytes

Abstract

Graphical abstract: SEM image of α-MnMoO{sub 4} nanorods on FTO substrate. Highlights: ► Synthesis of α-MnMoO{sub 4} nanorods by spin coating method. ► First study on the effect of electrolyte on the pseudocapacitance behavior. ► α-MnMoO{sub 4} nanorods exhibit maximum specific capacitance of 998 F/g. ► At higher scan rates p-TSA electrolyte exhibits superior capacitive behavior. -- Abstract: α-MnMoO{sub 4} nanorods were prepared on conducting glass substrate via sol–gel spin coating method at the optimum doping level. The effect of electrolyte on the pseudocapacitance behavior of the α-MnMoO{sub 4} nanorods was studied using para toluene sulfonic acid (p-TSA), sulfuric acid (H{sub 2}SO{sub 4}) and hydrochloric acid (HCl) as electrolytes. X-ray diffraction analysis reveals the formation of α-MnMoO{sub 4} in monoclinic phase. FTIR spectra contain vibrational bands associated with Mo=O, M–O and Mo–O–Mo bonds. SEM image reveals the formation of nanorods. Supercapacitor behavior has been studied using cyclic voltammetry (CV) analysis. α-MnMoO{sub 4} nanorods exhibit maximum specific capacitance of 998 F/g at a scan rate of 5 mV/s in H{sub 2}SO{sub 4} electrolyte while a specific capacitance of 784 F/g and 530 F/g have been obtained using p-TSA and HCl electrolytes, respectively. At higher scan rates p-TSA electrolyte exhibits superior capacitivemore » behavior than H{sub 2}SO{sub 4}.« less

Authors:
 [1];  [2];  [2]
  1. Department of Physics, TRP Engineering College (SRM Group), Irungalur, Trichy, Tamilnadu (India)
  2. Department of Physics, Gandhigram Rural Institute – Deemed University, Gandhigram, Tamilnadu (India)
Publication Date:
OSTI Identifier:
22215573
Resource Type:
Journal Article
Journal Name:
Materials Research Bulletin
Additional Journal Information:
Journal Volume: 47; Journal Issue: 11; Other Information: Copyright (c) 2012 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0025-5408
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 77 NANOSCIENCE AND NANOTECHNOLOGY; CAPACITANCE; ELECTROLYTES; FOURIER TRANSFORMATION; HYDROCHLORIC ACID; INFRARED SPECTRA; MONOCLINIC LATTICES; NANOSTRUCTURES; SCANNING ELECTRON MICROSCOPY; SUBSTRATES; SULFURIC ACID; X-RAY DIFFRACTION

Citation Formats

Purushothaman, K.K., E-mail: purushoth_gri@yahoo.co.in, Cuba, M., and Muralidharan, G., E-mail: muralg@rediffmail.com. Supercapacitor behavior of α-MnMoO{sub 4} nanorods on different electrolytes. United States: N. p., 2012. Web. doi:10.1016/J.MATERRESBULL.2012.07.027.
Purushothaman, K.K., E-mail: purushoth_gri@yahoo.co.in, Cuba, M., & Muralidharan, G., E-mail: muralg@rediffmail.com. Supercapacitor behavior of α-MnMoO{sub 4} nanorods on different electrolytes. United States. doi:10.1016/J.MATERRESBULL.2012.07.027.
Purushothaman, K.K., E-mail: purushoth_gri@yahoo.co.in, Cuba, M., and Muralidharan, G., E-mail: muralg@rediffmail.com. Thu . "Supercapacitor behavior of α-MnMoO{sub 4} nanorods on different electrolytes". United States. doi:10.1016/J.MATERRESBULL.2012.07.027.
@article{osti_22215573,
title = {Supercapacitor behavior of α-MnMoO{sub 4} nanorods on different electrolytes},
author = {Purushothaman, K.K., E-mail: purushoth_gri@yahoo.co.in and Cuba, M. and Muralidharan, G., E-mail: muralg@rediffmail.com},
abstractNote = {Graphical abstract: SEM image of α-MnMoO{sub 4} nanorods on FTO substrate. Highlights: ► Synthesis of α-MnMoO{sub 4} nanorods by spin coating method. ► First study on the effect of electrolyte on the pseudocapacitance behavior. ► α-MnMoO{sub 4} nanorods exhibit maximum specific capacitance of 998 F/g. ► At higher scan rates p-TSA electrolyte exhibits superior capacitive behavior. -- Abstract: α-MnMoO{sub 4} nanorods were prepared on conducting glass substrate via sol–gel spin coating method at the optimum doping level. The effect of electrolyte on the pseudocapacitance behavior of the α-MnMoO{sub 4} nanorods was studied using para toluene sulfonic acid (p-TSA), sulfuric acid (H{sub 2}SO{sub 4}) and hydrochloric acid (HCl) as electrolytes. X-ray diffraction analysis reveals the formation of α-MnMoO{sub 4} in monoclinic phase. FTIR spectra contain vibrational bands associated with Mo=O, M–O and Mo–O–Mo bonds. SEM image reveals the formation of nanorods. Supercapacitor behavior has been studied using cyclic voltammetry (CV) analysis. α-MnMoO{sub 4} nanorods exhibit maximum specific capacitance of 998 F/g at a scan rate of 5 mV/s in H{sub 2}SO{sub 4} electrolyte while a specific capacitance of 784 F/g and 530 F/g have been obtained using p-TSA and HCl electrolytes, respectively. At higher scan rates p-TSA electrolyte exhibits superior capacitive behavior than H{sub 2}SO{sub 4}.},
doi = {10.1016/J.MATERRESBULL.2012.07.027},
journal = {Materials Research Bulletin},
issn = {0025-5408},
number = 11,
volume = 47,
place = {United States},
year = {2012},
month = {11}
}