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A study of [Os(bipy)(2)(PVP)(3.3)(PS)(6.7)Cl](+) polymer film modified electrodes using neutron reflectivity
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UNSPECIFIED (1999) A study of [Os(bipy)(2)(PVP)(3.3)(PS)(6.7)Cl](+) polymer film modified electrodes using neutron reflectivity. PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 1 (5). pp. 843-853. ISSN 1463-9076.
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Abstract
Neutron reflectivity was used to obtain spatial distributions within [Os(bipy)(2)(PVP)(3.3)(PS)(6.7)Cl](+) modified Au electrodes (where PVP represents poly(4-vinylpyridine) and PS represents polystyrene) in contact with increasing concentrations of two types of electrolyte, perchlorate and p-toluenesulfonate. Film swelling and corresponding solvent ingress were observed to be more pronounced in p-toluenesulfonate media than in perchlorate media, yet the effects were found to be of lesser magnitude than for the corresponding homopolymer system, [Os(bipy)(2)(PVP)(10)Cl](+). Film structural changes upon immersion in solvent and redox cycling in electrolyte were determined. A comparison with the him maintained in Os-II and Os-III oxidation states revealed further film swelling in the oxidized state.
Item Type: | Journal Article | ||||
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Subjects: | Q Science > QD Chemistry Q Science > QC Physics |
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Journal or Publication Title: | PHYSICAL CHEMISTRY CHEMICAL PHYSICS | ||||
Publisher: | ROYAL SOC CHEMISTRY | ||||
ISSN: | 1463-9076 | ||||
Official Date: | 1 March 1999 | ||||
Dates: |
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Volume: | 1 | ||||
Number: | 5 | ||||
Number of Pages: | 11 | ||||
Page Range: | pp. 843-853 | ||||
Publication Status: | Published |
Data sourced from Thomson Reuters' Web of Knowledge
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