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Title: Electrochemical behavior of β-MnO{sub 2} and MnOOH nanorods in different electrolytes

A manganese dioxide (β-MnO{sub 2}) and MnOOH nanoparticles has been synthesized by hydrothermal method. As prepared samples are analyzed by X-ray Diffraction (XRD) and Field Emission Scanning Electron Microscopy (FESEM). FESEM showed rod morphology within the diameter of 50–200 and length of few nanometers. These nanorods are immobilized on a Glassy Carbon Electrode (GCE) by drop cast method. The comparative electrochemical behavior of β-MnO{sub 2} and MnOOH rod modified GCE electrodes are analyzed by cyclic Voltammetry (CV) method in different electrolytes of 0.1M KCl, 0.1M Na{sub 2}SO{sub 4}, 0.1M NaOH, 0.1M PBS, 0.1M H{sub 2}SO{sub 4}. From the cyclic Voltammetry analysis found that in all the electrolytes both β-MnO{sub 2} and MnOOH modified GCE electrodes exhibit electrochemical behavior and KCl shows well redox properties as compared with others. There is also an observable difference in reduction potential value of both crystalline nanostructurers and concluded that β-MnO{sub 2} has high catalytic ability as compared with MnOOH rods.
Authors:
 [1] ;  [2]
  1. Advanced Materials and Devices Laboratory (AMDL), Department of Physics, Bharathiar University, Coimbatore (India)
  2. Department of Nano Science and Technology, Bharathiar University, Coimbatore (India)
Publication Date:
OSTI Identifier:
22490256
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1665; Journal Issue: 1; Conference: 59. DAE solid state physics symposium 2014, Tamilnadu (India), 16-20 Dec 2014; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; CAST METHOD; COMPARATIVE EVALUATIONS; ELECTROCHEMISTRY; ELECTROLYTES; FIELD EMISSION; HYDROTHERMAL SYNTHESIS; LEAD SULFIDES; MANGANESE OXIDES; MORPHOLOGY; NANOPARTICLES; NANOSTRUCTURES; POTASSIUM CHLORIDES; REDUCTION; SCANNING ELECTRON MICROSCOPY; SODIUM HYDROXIDES; SODIUM SULFATES; SULFURIC ACID; VOLTAMETRY; X-RAY DIFFRACTION