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Polydiphenylamine/carbon nanotube composites for applications in rechargeable lithium batteries
- Source :
-
Materials Science & Engineering: B . Feb2011, Vol. 176 Issue 2, p110-120. 11p. - Publication Year :
- 2011
-
Abstract
- Abstract: Polydiphenylamine/single walled carbon nanotube (PDPA/SWNT) composites were synthesized electrochemically aiming at their application as active electrode materials for rechargeable lithium batteries. The electrochemical polymerization of diphenylamine (DPA) on a SWNT film immersed in a 1M HCl solution was studied by cyclic voltammetry. Comparing cyclic voltammograms recorded on a blank Pt electrode with those obtained for a SWNT film deposited on Pt electrode one observes in the latter case a decrease of the DPA reduction potential. To elucidate electrochemical polymerization mechanism, photoluminescence studies on DPA/SWNT and PDPA/SWNT systems were carried out. Additional information concerning the functionalization process of SWNT with PDPA was obtained by Raman and IR spectroscopy. Using the PDPA/SWNT composite as active material for the positive electrode of a rechargeable lithium cell (LiPF6 electrolyte), the charge–discharge tests show a specific discharge capacity of ca. 245mAhg−1, much higher than the 35mAhg−1 for pure PDPA. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 09215107
- Volume :
- 176
- Issue :
- 2
- Database :
- Academic Search Index
- Journal :
- Materials Science & Engineering: B
- Publication Type :
- Academic Journal
- Accession number :
- 57511644
- Full Text :
- https://doi.org/10.1016/j.mseb.2010.10.008