State of the pre-adsorbed sulfur on a rough platinum electrode in voltammetric conditions: Microgravimetric measurements with electrochemical quartz crystal microbalance

2013 ◽  
Vol 87 ◽  
pp. 186-193 ◽  
Author(s):  
R.V. Bucur
Keyword(s):  
Quartz Crystal Microbalance ◽  
Quartz Crystal ◽  
Platinum Electrode ◽  
Electrochemical Quartz Crystal Microbalance ◽  
Adsorbed Sulfur

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

2013 ◽  
Vol 29 ◽  
pp. 24-27
Author(s):  
Amar Prasad Yadav
Keyword(s):  
Cyclic Voltammetry ◽  
Quartz Crystal Microbalance ◽  
Quartz Crystal ◽  
Platinum Electrode ◽  
Electrochemical Quartz Crystal Microbalance ◽  
Polarization Potential ◽  
H2so4 Solution ◽  
Scan Rate ◽  
Potentiostatic Polarization ◽  
The Stability

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.v29i0.9233Journal of Nepal Chemical SocietyVol. 29, 2012Page: 24-27Uploaded date : 12/3/2013

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