Stability of Platinum in Sulfuric Acid Solution Studied by Electrochemical Quartz Crystal Microbalance

Authors

  • Amar Prasad Yadav Central Department of Chemistry, Tribhuvan University, Kirtipur, Kathmandu

Keywords:

Electrodeposited Pt, EQCM, PEFC, Dissolution

Abstract

The stability of electrodeposited platinum electrode in 0.5 M H2SO4 solution has been studied under potentiodynamic and potentiostatic conditions using electrochemical quartz crystal microbalance (EQCM). In potentiodynamic polarization, cyclic voltammetry (CV) was carried out from 0.0 to 1.4 V at the scan rate of 0.01 V s-1 while in potentiostatic polarization, potential was stepped from 0.45 V to higher anodic potential limits of 0.75V, 1.0V, 1.1V, 1.2V, 1.4V, and 1.5V and corresponding mass change resulting from the formation of PtO was measured by EQCM. The results of CV and EQCM revealed that the Pt surface was covered with PtO in 0.65 < E< 1.5 V. 

DOI: http://dx.doi.org/10.3126/jncs.v29i0.9233

Journal of Nepal Chemical Society

Vol. 29, 2012

Page: 24-27

Uploaded date : 12/3/2013

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Published

2013-12-03

How to Cite

Yadav, A. P. (2013). Stability of Platinum in Sulfuric Acid Solution Studied by Electrochemical Quartz Crystal Microbalance. Journal of Nepal Chemical Society, 29, 24-27. https://doi.org/10.3126/jncs.v29i0.9233

Issue

Vol. 29 (2012)

Section

Articles

License

© Journal of Nepal Chemical Society

How to Cite

Yadav, A. P. (2013). Stability of Platinum in Sulfuric Acid Solution Studied by Electrochemical Quartz Crystal Microbalance. Journal of Nepal Chemical Society, 29, 24-27. https://doi.org/10.3126/jncs.v29i0.9233