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The effect of pulverization methods on the microstructure of stiff, ductile, and flexible carbon aerogels

Schwan, Marina and Schettler, Jessica and Badaczewski, Felix and Heinrich, Charlotte and Smarsly, Bernd and Milow, Barbara (2020) The effect of pulverization methods on the microstructure of stiff, ductile, and flexible carbon aerogels. Journal of Materials Science, 55, pp. 5861-5879. Springer. doi: 10.1007/s10853-020-04397-w. ISSN 0022-2461.

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Official URL: https://doi.org/10.1007/s10853-020-04397-w

Abstract

Carbon aerogels find application in many fields. In most of the applications, they are used as powders and thus need to be pulverized. However, the pulverization could induce various changes in the microstructure of carbon aerogels. The extent of changes depends not only on the dominant forces of used technique, but also on the mechanical and structural properties of initial monolithic samples. In the present work, we discuss the influence of grinding, milling in shaker cryo-mill, and planetary ball mill on stiff, ductile and flexible carbon aerogels. Scanning electron microscopy and transmission electron microscopy images, gas sorption techniques, wide-angle X-ray scattering, and Raman spectroscopy show a strong dependency of the introduced energy amount while pulverization on the structure modification. Results show that stiff carbon aerogels do not undergo noticeable changes. In contrast, ductile carbon aerogels are very sensitive to friction forces. Soft and flexible carbon aerogels undergo drastic changes in the microstructure.

Item URL in elib:https://elib.dlr.de/133808/
Document Type:Article
Title:The effect of pulverization methods on the microstructure of stiff, ductile, and flexible carbon aerogels
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Schwan, Marinamarina.schwan (at) dlr.dehttps://orcid.org/0000-0001-6329-8164
Schettler, JessicaJessica.Schettler (at) dlr.deUNSPECIFIED
Badaczewski, FelixFelix.M.Badaczewski (at) phys.Chemie.uni-giessen.deUNSPECIFIED
Heinrich, CharlotteCharlotte.Heinrich (at) dlr.dehttps://orcid.org/0000-0002-8970-9598
Smarsly, Berndbernd.smarsly (at) phys.chemie.uni-giessen.deUNSPECIFIED
Milow, BarbaraBarbara.Milow (at) dlr.dehttps://orcid.org/0000-0002-6350-7728
Date:January 2020
Journal or Publication Title:Journal of Materials Science
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:55
DOI :10.1007/s10853-020-04397-w
Page Range:pp. 5861-5879
Publisher:Springer
ISSN:0022-2461
Status:Published
Keywords:carbon aerogels, pulverization
HGF - Research field:Energy
HGF - Program:Energy Efficiency, Materials and Resources
HGF - Program Themes:Methods and Concepts for Materials Development
DLR - Research area:Energy
DLR - Program:E VS - Combustion Systems
DLR - Research theme (Project):E - Materials for Energy Technologies (old)
Location: Köln-Porz
Institutes and Institutions:Institute of Materials Research > Aerogels and Aerogel Composites
Deposited By: Schwan, Marina
Deposited On:19 Oct 2020 09:39
Last Modified:01 Feb 2022 03:00

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