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  Pyrolysis in the mesophase: A chemist's approach toward preparing carbon nano- and microparticles

Gherghel, L., Kübel, C., Lieser, G., Räder, H. J., & Müllen, K. (2002). Pyrolysis in the mesophase: A chemist's approach toward preparing carbon nano- and microparticles. Journal of the American Chemical Society, 124(44), 13130-13138. doi:10.1021/ja020363u.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-000F-64A4-5 Version Permalink: http://hdl.handle.net/21.11116/0000-0002-75AD-8
Genre: Journal Article

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 Creators:
Gherghel, L.1, Author              
Kübel, C.2, Author              
Lieser, Günter1, Author              
Räder, Hans Joachim1, Author              
Müllen, Klaus1, Author              
Affiliations:
1MPI for Polymer Research, Max Planck Society, ou_1309545              
2FEI Co, NL-5600 MD Eindhoven, Netherlands, ou_persistent22              

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 Abstract: A mild pyrolytic method is proposed for the generation of different carbon micro- and nanoparticles that are either unprecedented or have never been reported under the present experimental conditions. A hexa-alkyl-substituted hexa-peri- hexabenzocoronene serves as a graphite-like starting compound that melts into a discotic liquid crystalline phase prior to heat-induced cross-linking and dehydrogenation. An essential feature of the process is that the liquid crystalline order persists even above 400 degreesC, i.e., during alkyl chain cleavage. The present approach bears a resemblance to carbomesophase formation during graphitization starting from pitch. The pyrolysis products are characterized by matrix- assisted laser desorption/ionization time-of-flight (MALDI-TOF) mass spectrometry, optical microscopy, selected area electron diffraction (SAED), scanning electron microscopy (SEM), and high-resolution transmission electron microscopy (HRTEM).

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Language(s): eng - English
 Dates: 2002-11-06
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: No review
 Identifiers: eDoc: 28468
ISI: 000178966700042
Other: P-02-192
DOI: 10.1021/ja020363u
 Degree: -

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Title: Journal of the American Chemical Society
  Other : J. Am. Chem. Soc.
  Abbreviation : JACS
Source Genre: Journal
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Publ. Info: Washington, DC : American Chemical Society
Pages: - Volume / Issue: 124 (44) Sequence Number: - Start / End Page: 13130 - 13138 Identifier: ISSN: 0002-7863
CoNE: https://pure.mpg.de/cone/journals/resource/954925376870