Title:
METHOD FOR PREPARING CARBON NANOTUBE-CARBON NANOFIBER COMPOSITE, AND CARBON NANOTUBE-CARBON NANOFIBER COMPOSITE PREPARED THEREBY
Document Type and Number:
WIPO Patent Application WO/2021/157756
Kind Code:
A1
Abstract:
The present invention relates to a method for preparing a carbon nanotube-carbon nanofiber composite, and a carbon nanotube-carbon nanofiber composite prepared thereby. The subject matters of the present invention are a method for preparing a carbon nanotube-carbon nanofiber composite, and a carbon nanotube-carbon nanofiber composite prepared thereby, the method comprising: a first step of dissolving an alkali metal precursor in a solvent to prepare an alkali metal precursor solution; a second step of dissolving a carbon-containing polymer in the alkali metal precursor solution to prepare a spinning solution; a third step of electrospinning the spinning solution to prepare carbon-containing polymer nanofibers having surfaces to which the alkali metal precursor is bound; a fourth step of heat-treating the carbon-containing polymer nanofibers to prepare carbon nanofibers having surfaces to which the alkali metal precursor is bound; and a fifth step of heat-treating the carbon nanofibers while a carbon source is supplied, so that the alkali metal precursor is activated as an alkali metal nanocatalyst, and the carbon source is bound to the surfaces of the carbon nanofibers by the nanocatalyst, and crystallizes and grows into carbon nanotubes, thereby preparing carbon nanofibers having surfaces to which the carbon nanotubes are bound.
Inventors:
KANG JUN (KR)
KO JUNG HYUK (KR)
KIM DAE YEONG (KR)
KO JUNG HYUK (KR)
KIM DAE YEONG (KR)
Application Number:
PCT/KR2020/001664
Publication Date:
August 12, 2021
Filing Date:
February 05, 2020
Export Citation:
Assignee:
KOREA MARITIME UNIV IND ACAD (KR)
International Classes:
D06M11/74; C01B32/16; D01D5/00; D01F9/12
Foreign References:
| KR20060133974A | 2006-12-27 | |||
| US20120213985A1 | 2012-08-23 |
Other References:
KSHETRI TOLENDRA, TRAN DUY THANH, SORAM BOBBY SINGH, NAM HOON KIM, JOONG HEE LEE: "Hierarchical material of carbon nanotubes grown on carbon nanofibers for high performance electrochemical capacitor", CHEMICAL ENGINEERING JOURNAL, vol. 345, 27 March 2018 (2018-03-27), pages 39 - 47, XP055832707, DOI: 10.1016/j.cej.2018.03.143
KARTHIKEYAN K.K.; BIJI P.: "A novel biphasic approach for direct fabrication of highly porous, flexible conducting carbon nanofiber mats from polyacrylonitrile (PAN)/NaHCO3nanocomposite", MICROPOROUS AND MESOPOROUS MATERIALS, ELSEVIER, AMSTERDAM ,NL, vol. 224, 1 January 1900 (1900-01-01), Amsterdam ,NL, pages 372 - 383, XP029438347, ISSN: 1387-1811, DOI: 10.1016/j.micromeso.2015.12.055
LIFENG ZHANG, ABOAGYE ALEX, KELKAR AJIT, LAI CHUILIN, FONG HAO: "A review: carbon nanofibers from electrospun polyacrylonitrile and their applications", JOURNAL OF MATERIALS SCIENCE, CHAPMAN & HALL, vol. 49, no. 2, pages 463 - 480, XP055094511, ISSN: 00222461, DOI: 10.1007/s10853-013-7705-y
KARTHIKEYAN K.K.; BIJI P.: "A novel biphasic approach for direct fabrication of highly porous, flexible conducting carbon nanofiber mats from polyacrylonitrile (PAN)/NaHCO3nanocomposite", MICROPOROUS AND MESOPOROUS MATERIALS, ELSEVIER, AMSTERDAM ,NL, vol. 224, 1 January 1900 (1900-01-01), Amsterdam ,NL, pages 372 - 383, XP029438347, ISSN: 1387-1811, DOI: 10.1016/j.micromeso.2015.12.055
LIFENG ZHANG, ABOAGYE ALEX, KELKAR AJIT, LAI CHUILIN, FONG HAO: "A review: carbon nanofibers from electrospun polyacrylonitrile and their applications", JOURNAL OF MATERIALS SCIENCE, CHAPMAN & HALL, vol. 49, no. 2, pages 463 - 480, XP055094511, ISSN: 00222461, DOI: 10.1007/s10853-013-7705-y
Attorney, Agent or Firm:
PUKYUNG INTERNATIONAL PATENT & LAW FIRM (KR)
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