Study of cupric hexacyanoferrate-modified platinum electrodes using probe beam deflection and electrochemical quartz crystal microbalance techniques

✍ Scribed by Changwei Liu; Ying Wang; Guoyi Zhu; Shaojun Dong

• Book ID: 104115050
• Publisher: Elsevier Science
• Year: 1997
• Tongue: English
• Weight: 534 KB
• Volume: 42
• Category: Article
• ISSN: 0013-4686
• DOI: 10.1016/s0013-4686(96)00379-9

✦ Synopsis

The ion exchange mechanism accompanying the oxidation/reduction processes of cupric hexacyanoferrate-modified platinum electrodes in different aqueous electrolyte solutions has been studied by means of in situ probe beam deflection and the electrochemical quartz crystal microbalance technique. The results demonstrate that the charge neutrality of the film during the reoxidation/reduction process is accomplished predominantly by the movement of cations, but anions and/or solvent are also participator(s). Moreover, in KHCrH404 (potassium biphthalate) solution, the EQCM data obtained from a chronoamperometry experiment are more complicated than those in KC1 and KzS04 solutions.