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Langmuir-Schaefer films of Nafion with incorporated TiO2 nanoparticles
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UNSPECIFIED (2005) Langmuir-Schaefer films of Nafion with incorporated TiO2 nanoparticles. LANGMUIR, 21 (1). pp. 172-177. doi:10.1021/la048837l ISSN 0743-7463.
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Official URL: http://dx.doi.org/10.1021/la048837l
Abstract
An easy method of incorporating TiO2 nanoparticles into Nafion perfluorinated ionomer is proposed. Ultrathin films of Nafion were prepared by employing the Langmuir-Schaefer (LS) technique. The pressure-area isotherm study of a Langmuir monolayer of Nafion at the air-water interface on different concentrations of NaCl as the subphase allowed us to find the best experimental conditions for the deposition of stable Langmuir-Schaefer films. Incorporation of TiO2 nanoparticles was performed by dipping Nafion LS films in a solution of TiO2 nanoparticles. The uniformity of the TiO2 incorporation was detected by UV-visible spectroscopy. The morphology of the Nafion, Nafion/TiO2 nanoparticles thin films, and the changes due to the annealing procedure were investigated by atomic force microscopy. Interestingly, the AFM investigation showed that Nafion and Nafion/TiO2 LS films have thermal stability up to 600 degreesC.
Item Type: | Journal Article | ||||
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Subjects: | Q Science > QD Chemistry T Technology > TA Engineering (General). Civil engineering (General) |
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Journal or Publication Title: | LANGMUIR | ||||
Publisher: | AMER CHEMICAL SOC | ||||
ISSN: | 0743-7463 | ||||
Official Date: | 4 January 2005 | ||||
Dates: |
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Volume: | 21 | ||||
Number: | 1 | ||||
Number of Pages: | 6 | ||||
Page Range: | pp. 172-177 | ||||
DOI: | 10.1021/la048837l | ||||
Publication Status: | Published |
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