Electrochemistry in the presence of mesoporous TiO2 phytate nanofilms
UNSPECIFIED. (2004) Electrochemistry in the presence of mesoporous TiO2 phytate nanofilms. ELECTROANALYSIS, 16 (1-2). pp. 89-96. ISSN 1040-0397Full text not available from this repository.
Official URL: http://dx.doi.org/10.1002/elan.200302922
Thin composite organic - inorganic membranes are formed at electrode surfaces via a layer-by-layer deposition process employing TiO2 nanoparticles and phytic acid as molecular binder. The mesoporous membranes form uniformly across platinum and glass surfaces and are shown via conducting atomic force microscopy (C-AFM) to behave in dry state as electrically insulating films. Voltammetry at platinum electrodes of 1.5 mm, 100 mum, and 10 mum diameter is used to survey the effect of the composite membrane on electrochemical processes. The electrode diameter as well as concentration and nature of electrolyte have a considerable effect on the electrode process. For the one electron reduction of Ru(NH3)(6)(3+) in aqueous media adsorption effects, mobility effects, and accumulation or 'memory' effects are observed. Similarly, protons or cationic molecules such as dopamine can be accumulated and 'stored' in the membrane and then transferred to a clean electrolyte for analysis.
|Item Type:||Journal Article|
|Subjects:||Q Science > QD Chemistry|
|Journal or Publication Title:||ELECTROANALYSIS|
|Publisher:||WILEY-V C H VERLAG GMBH|
|Official Date:||January 2004|
|Number of Pages:||8|
|Page Range:||pp. 89-96|
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