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|Type:||Artigo de periódico|
|Title:||Cyclic Voltammetric Study Of [fe(cn)6]3-/4- Immobilized On Silica Gel Surface Coated With Titanium(iv) Oxide|
|Abstract:||The complex [Fe(CN)6]3-/4- was immobilized onto a silica gel surface chemically modified with titanium(IV) oxide. The formal potential of the attached electroactive species was E0 = 175 mV vs. sce. The concentration and the nature of the supporting electrolyte had no influence on this potential, but solution pH < 2 shifted it towards higher values. An asymmetry of the current peaks (Ipc > pa, where Ipc and Ipa are the cathodic and anodic peak currents) was observed and explained as being due to a doped n-type semiconductor behaviour of the titanium oxide coated on the silica surface. © 1992.|
|Appears in Collections:||Unicamp - Artigos e Outros Documentos|
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