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Kim, Byeong-Su
Soft and Hybrid Nanomaterials Lab
Research Interests
  • Carbon materials, polymer, Layer-by-Layer (LbL) assembly, hyperbranched polymer, polyglycerol (PG), bio-applications

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

Cited 255 times inthomson ciCited 293 times inthomson ci
Title
Layer-by-Layer Assembly of All Carbon Nanotube Ultrathin Films for Electrochemical Applications
Author
Lee, Seung WooKim, Byeong-SuChen, ShuoShao-Horn, YangHammond, Paula T.
Keywords
AFM; Electrochemical applications; Electrochemical measurements; Electronic conductivity; Functionalized; High-capacitive; Interpenetrating networks; Layer-by-layer assemblies; Multi-wall carbon nanotubes; pH condition; PH-dependent; Polymer composite; Positively charged; Precise control; SEM; Single wall nanotubes; Surface Functionalization; Thin-film electrode; Tunable thin films; Weak polyelectrolytes
Issue Date
2009-01
Publisher
AMER CHEMICAL SOC
Citation
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, v.131, no.2, pp.671 - 679
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.
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DOI
10.1021/ja807059k
ISSN
0002-7863
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PHY_Journal Papers
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