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Two-component polymer films of palladium and fullerene with covalently linked crown ether voids: effect of cation binding on the redox behavior
Wysocka-Zolopa, Monika Winkler, Krzysztof Gadde, Suresh D'Souza, Francis
Wysocka-Zolopa, Monika
Winkler, Krzysztof
Gadde, Suresh
D'Souza, Francis
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D'Souza_2012a
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2012-01
Type
Article
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Keywords
Redox active fullerene polymers,Crown ethers,Electropolymerization,Cation binding,Quartz crystal microbalance
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Citation
Wysocka-Zolopa, Monika, Krzysztof Winkler, Suresh Gadde, and Francis D'Souza. 2012. "Two-component polymer films of palladium and fullerene with covalently linked crown ether voids: effect of cation binding on the redox behavior". Journal of Solid State Electrochemistry. 16 (1): 65-74.
Abstract
Redox active films have been generated via electrochemical reduction in a solution containing palladium(II) acetate and fulleropyrrolidine with covalently linked crown ethers, viz., benzo-15-crown-5 and benzo-18-crown-6. In these films, fullerene moieties are covalently bonded to palladium atoms to form a polymeric network. Films show ability to coordinate alkali metal cations from the solution. Therefore, in solutions containing salts of alkali metal cations, benzo-15-crown-5-C(60)/Pd and benzo-18-crown-6-C(60)/Pd films are doped with cations coordinated by crown ether moiety and anions of supporting electrolyte which enter the film to balance positive charge. These films are electrochemically active in the negative potential range due to the reduction of the fullerene moiety. Reduction of the polymer is accompanied by the transport of supporting electrolyte ions between solution and solid phase. In solution containing alkali metal salts, the process of film reduction is ac! companied by the transport of anions from the film to the solution. In the presence of tetra(alkyl)ammonium salts, transport of cations from the solution to the film takes place during the polymer reduction.
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Open access article accessible for free in SOAR.
Publisher
Springer
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Journal of Solid State Electrochemistry;2012:, v.16, no.1
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ISSN
1432-8488
1433-0768
1433-0768