Study of Platinum Dissolution Mechanism Using a Highly Sensitive Electrochemical Quartz Crystal Microbalance

  • Sakurai T
  • Shibata M
  • Horiuchi R
 et al. 
  • 5


    Mendeley users who have this article in their library.
  • N/A


    Citations of this article.


Platinum (Pt) dissolution during oxidation/reduction cycle in various potential cycle ranges and in various pHs of the oxygen-saturated and deaerated H2SO4 and HClO4 electrolyte solutions was monitored by the highly sensitive electrochemical quartz crystal microbalance (EQCM) system. It was found that the Pt mass reduction depended on the potential cycle range and pH of the electrolyte solution with dissolved oxygen. Based on these results, it can be suggested that the dissolution of Pt requires one proton per one Pt and that italso requires dissolved oxygen, and then we can conclude that the dissolution reaction of Pt isas followings; PtO + H+ + 1/2O2 + H2O¼Pt(OH)3+ and/or PtOH + H+ + 3/4O2 + 1/2H2O¼Pt(OH)3+.

Get free article suggestions today

Mendeley saves you time finding and organizing research

Sign up here
Already have an account ?Sign in

Find this document


  • Takara Sakurai

  • Masayo Shibata

  • Reiko Horiuchi

  • Ichizo Yagi

  • Toshihiro Kondo

Cite this document

Choose a citation style from the tabs below

Save time finding and organizing research with Mendeley

Sign up for free