Layer-by-layer assembled multiwall carbon nanotube electrodes for electrochemical energy storage and conversion devices

Seung Woo Lee, Byeong Su Kim, Junhyung Kim, Paula T. Hammond, Yang Shao-Horn

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Carbon nanotubes (CNT) are one of the most promising materials for the electrode of electrochemical devices (such as fuel cells, batteries and supercapacitors), due to their high electrical conductivity, chemical stability, and large surface area. Controlling the architecture of CNT electrodes at the nanometer and micrometer-scale is critical to tailoring electrode properties and functionality. Layer-by-layer (LbL) assembly is a versatile thin-film fabrication technique with complementary functionalized materials. In this work, we have demonstrated LbL assembled thin film electrodes made of multi-walled carbon nanotubes (MWNTs) as the energy storage materials and the matrix of energy conversion devices. Electrochemical measurements of these all-MWNT thin film electrodes show precise control of capacity as a function of electrode thickness up to -3 microns and high specific and volumetric capacitance for electrochemical capacitor applications. Furthermore, we demonstrated these LBL-MWNT electrodes are promising substrates for electrocatalysts for energy conversion devices.

Original languageEnglish
Title of host publicationAmerican Chemical Society - 238th National Meeting and Exposition, ACS 2009, Abstracts of Scientific Papers
Publication statusPublished - 2009
Event238th National Meeting and Exposition of the American Chemical Society, ACS 2009 - Washington, DC, United States
Duration: 2009 Aug 162009 Aug 20

Publication series

NameACS National Meeting Book of Abstracts
ISSN (Print)0065-7727

Other

Other238th National Meeting and Exposition of the American Chemical Society, ACS 2009
CountryUnited States
CityWashington, DC
Period09/8/1609/8/20

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)

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