Effect of planetary ball milling process parameters on the nitrogen adsorption properties of multiwall carbon nanotubes

Ibolya Zita Papp, Gábor Kozma, Róbert Puskás, Tímea Simon, Z. Kónya, Á. Kukovecz

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

The dependence of multiwall carbon nanotube (MWCNT) length distribution and some nitrogen derived morphological descriptors on various planetary ball milling process parameters was investigated. Ball milling was found to cut nanotubes into smaller pieces, narrow their length distribution and increase their specific surface area and surface fractal dimension. Typical length reduction was from 1300 to 200 nm, specific surface area increase from 160 to 340 m2g-1 and surface fractal dimension increase from 2.47 to 2.70. The pore size distribution of pristine MWCNTs exhibited a mesoporous character dominated by intertube channels. A sharp maximum appeared at d = 3.6 nm diameter when the milling power was increased. This increase was attributed to the opening of intratube voids. Processes involving graphitic platelet detachment, tube wall amorphization or carbonaceous debris accumulation appear to play only minor roles under the studied experimental conditions of planetary milling. Control over the morphology of the milled material is best achieved by varying the diameter and the mass ratio of the grinding balls as well as the classical process parameters like disk rotational speed, milling time and number of balls.

Original languageEnglish
Pages (from-to)687-694
Number of pages8
JournalAdsorption
Volume19
Issue number2-4
DOIs
Publication statusPublished - 2013

Fingerprint

Carbon Nanotubes
Ball milling
Fractal dimension
Specific surface area
balls
Carbon nanotubes
Nitrogen
carbon nanotubes
Adsorption
nitrogen
adsorption
Amorphization
Platelets
Debris
Nanotubes
Pore size
fractals
grinding
platelets
detachment

Keywords

  • Ball mill
  • Carbon nanotube
  • Fractal dimension
  • Nitrogen adsorption

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Surfaces and Interfaces
  • Chemistry(all)

Cite this

Effect of planetary ball milling process parameters on the nitrogen adsorption properties of multiwall carbon nanotubes. / Papp, Ibolya Zita; Kozma, Gábor; Puskás, Róbert; Simon, Tímea; Kónya, Z.; Kukovecz, Á.

In: Adsorption, Vol. 19, No. 2-4, 2013, p. 687-694.

Research output: Contribution to journalArticle

Papp, Ibolya Zita ; Kozma, Gábor ; Puskás, Róbert ; Simon, Tímea ; Kónya, Z. ; Kukovecz, Á. / Effect of planetary ball milling process parameters on the nitrogen adsorption properties of multiwall carbon nanotubes. In: Adsorption. 2013 ; Vol. 19, No. 2-4. pp. 687-694.
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