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The pH effects on the capacitive behavior of nanostructured molybdenum oxide

Farsi, H ; Sharif University of Technology

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  1. Type of Document: Article
  2. DOI: 10.1007/s10008-009-0828-z
  3. Abstract:
  4. Nanostructured molybdenum oxide having a particle size in the range of 30-80 nm was prepared by potentiodynamic electrodeposition method, and the effects of H2SO4 concentration on its capacitive behavior were studied by cyclic voltammetry, galvanostatic discharge, and electrochemical impedance spectroscopy. Poor to fair capacitive behaviors were witnessed depending on the electrolyte concentration and conditions of charge/discharge. Increasing acid concentration to 0.02 M had favorable effect, while beyond that, the effect was detrimental. Capacitance around 600 F g-1 was recorded in the potential range of 0 to -0.55 V vs. Ag/AgCl
  5. Keywords:
  6. Molybdenum oxides ; Nanostructure ; Cyclic voltammetry ; Electrochemical impedance spectroscopy ; Nanostructures ; pH effects ; Spectroscopy ; Acid concentrations ; Capacitive behavior ; Electrodeposition methods ; Electrolyte concentration ; Galvanostatic discharge ; Impedance spectroscopy ; Potential range ; Potentiodynamics ; Molybdenum oxide
  7. Source: Journal of Solid State Electrochemistry ; Volume 14, Issue 4 , 2010 , Pages 681-686 ; 14328488 (ISSN)
  8. URL: http://link.springer.com/article/10.1007%2Fs10008-009-0828-z