Electrochemical Formation of Prussian Blue in Natural Iron-Intercalated Clay and Cinder Matrixes

✍ Scribed by Jyh-Myng Zen; Annamalai Senthil Kumar; Huey-Wen Chen

• Publisher: John Wiley and Sons
• Year: 2000
• Tongue: English
• Weight: 181 KB
• Volume: 12
• Category: Article
• ISSN: 1040-0397
• DOI: 10.1002/(sici)1521-4109(200005)12:7<542::aid-elan542>3.0.co;2-5

✦ Synopsis

Natural iron-intercalated clays and waste cinder (from steel industry) were converted into an ef®cient catalyst by electrochemical formation of Prussian blue (PB) directly inside the matrix. The basic electrochemical features for the PB-modi®ed electrodes were investigated by means of cyclic voltammetry technique, in terms of E fwhm , surface charge (q), surface excess (G), site-site interaction model, and ®lm resistivity (R f ), etc. The iron intercalated PB electrodes show superior electrochemical activity and stability over the classical GCE/PB electrodes and were analyzed by the interaction parameter `r'. The more ef®cient electrocatalytic function of the iron intercalated PB electrodes than the GCE/PB was demonstrated with guanine oxidation reaction.