Layer-by-Layer Assembly of All Carbon Nanotube Ultrathin Films for Electrochemical Applications

Lee, Seung Woo and Kim, Byeong-Su and Chen, Shuo and Shao-Horn, Yang and Hammond, Paula T.. (2009) Layer-by-Layer Assembly of All Carbon Nanotube Ultrathin Films for Electrochemical Applications. Journal of the American Chemical Society, 131 (2). p. 671. ISSN 0002-7863

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Abstract

All multiwall carbon nanotube (MWNT) thin films are created by layer-by-layer (LBL) assembly of surface functionalized MWNTs. Negatively and positively charged MWNTs were prepared by surface functionalization, allowing the incorporation of MWNTs into highly tunable thin films via the LBL technique. The pH dependent surface charge on the MWNTs gives this system the unique characteristics of LBL assembly of weak polyelectrolytes, controlling thickness and morphology with assembly pH conditions. We demonstrate that these MWNT thin films have randomly oriented interpenetrating network structure with well developed nanopores using AFM and SEM, which is an ideal structure of functional materials for various applications. In particular, electrochemical measurements of these all-MWNT thin film electrodes show high electronic conductivity in comparison with polymer composites with single wall nanotubes, and high capacitive behavior with precise control of capacity.

Item Type: Article
Additional Information: Reprinted with permission from "Lee, Seung Woo, et al. 'Layer-by-Layer Assembly of All Carbon Nanotube Ultrathin Films for Electrochemical Applications.' J. Am. Chem. Soc. 131.2 (2009): 671–679." Copyright 2008 American Chemical Society.
InterNano Taxonomy: Nanoscale Objects and Nanostructured Materials > Nanocomposites > Thin films
Nanomanufacturing Processes > Assembly Techniques
Nanomanufacturing Characterization Techniques
Nanoscale Objects and Nanostructured Materials > Nanotubes > Carbon nanotubes
Collections: Nanomanufacturing Research Collection
Related URLs:
Depositing User: Rebecca Reznik-Zellen
Date Deposited: 05 Nov 2009 21:17
Last Modified: 05 Nov 2009 21:17
URI: http://eprints.internano.org/id/eprint/163

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