Preparation and characterization of activated carbon nanofiber webs containing multiwalled carbon nanotubes by electrospinning

Soo Jin Park, Se Hyuk Im, John M. Rhee, Young Seak Lee

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Electrochemical double layer capacitors (EDLCs) are promising high power energy sources for 6422707different applications where high power density, high cycle efficiency and long cycle life are needed. However, because the energy density of EDLCs is small compared to that of rechargeable batteries one needs to increase the capacitance of EDLCs. The nanofiber diameters range from 50 nm to 400 nm, depending on the concentration of polymer solution types, tip-to-collector distance, applied voltage, and viscosity of the solution. The main advantage of the electrospinning process is that it is a simple means to prepare continuous fibers with unusually large surface to volume ratios and pore structure surfaces. So, feature of nanofiber webs are the high specific surface area developed by creating pores on the nanofiber surface. In this work, the multiwalled carbon nanotubes embedded polyacrylonitrile solutions in N,N-dimethylformamide (DMF) were electrospun to be webs consisting of 350 nm ultrafine nanofibers, which were used to produce a series of activated carbon nanofibers with developed mesoporosity and high electrical conductivity through stabilization, carbonization-activation processes.

Original languageEnglish
Title of host publicationNanocomposites and Nanoporous Materials
EditorsChang Kyu Rhee
PublisherTrans Tech Publications Ltd
Pages55-58
Number of pages4
ISBN (Print)9783908451273
DOIs
StatePublished - 2007
Event7th International Symposium on Nanocomposites and Nanoporous Materials, ISNAM 2006 - Gyeongju, Korea, Republic of
Duration: 15 Feb 200617 Feb 2006

Publication series

NameSolid State Phenomena
Volume119
ISSN (Print)1012-0394
ISSN (Electronic)1662-9779

Conference

Conference7th International Symposium on Nanocomposites and Nanoporous Materials, ISNAM 2006
Country/TerritoryKorea, Republic of
CityGyeongju
Period15/02/0617/02/06

Bibliographical note

Publisher Copyright:
© (2007) Trans Tech Publications, Switzerland.

Keywords

  • Electrochemical double layer capacitors
  • Multiwalled carbon nanotubes
  • N, N-dimethylformamide
  • Polyacrylonitrile

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