Sin, Sau Leng and Teo, Lay Lian and Tan, Kim Song and Chan, Chee Yan (2000) ESCA and TOF-SIMS study on oxidised and reduced polypyrrole-poly(4-styrenesulfonate) free-standing films synthesized on Ti electrodes. Electrochemistry Communications, 2 (10). pp. 685-691. ISSN 1388-2481, DOI https://doi.org/10.1016/S1388-2481(00)00090-4.
Full text not available from this repository.Abstract
Thin films of polypyrrole, composited with poly(4-styrenesulfonate), formed electrochemically on titanium plate electrodes could be peeled off readily as free standing films, before and after reduction in the aqueous forming solution. Both surfaces (electrolyte side and electrode side) of such free standing films had been investigated using electron spectroscopy for chemical analysis (ESCA) and time of flight secondary ion mass spectrometry (TOF-SIMS). The morphologies for the electrolyte sides of both oxidized and reduced forms of such polypyrrole composite films were clearly different from those of the electrode sides, but little difference in surface conductivity between the two sides of each form was detectable using the four-point probe technique. ESCA spectra showed high sodium ion presence on the surfaces of the reduced form but not detectable on the surfaces of the oxidized form. Secondary electron images and ion maps of sampled areas on the films from the TOF-SIMS study revealed some interesting surface features.
| Item Type: | Article |
|---|---|
| Funders: | University of Malaya, IRPA Grant from the Malaysian Government |
| Additional Information: | Sin, S.-L., Teo, L.-L., Tan, K.-S., Chan, C.-Y. Department of Chemistry, University of Malaya, 50603 Kuala Lumpur, Malaysia. |
| Uncontrolled Keywords: | ESCA; Ion mapping; Poly(4-styrene-sulfonate); Polypyrrole; Titanium electrodes; TOF-SIMS |
| Subjects: | Q Science > QD Chemistry |
| Divisions: | Faculty of Science > Department of Chemistry |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 02 Sep 2021 01:27 |
| Last Modified: | 02 Sep 2021 01:27 |
| URI: | http://eprints.um.edu.my/id/eprint/26009 |
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