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

Amar Prasad Yadav
2013 Journal of Nepal Chemical Society  
The stability of electrodeposited platinum electrode in 0.5 M H 2 SO 4 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
more » ... nd 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:10.3126/jncs.v29i0.9233 fatcat:ris55e2qv5aa5aeuaen2q6fhcq