Compression and aggregation-resistant particles of crumpled soft sheets

Jiayan Luo, Hee Dong Jang, Tao Sun, Li Xiao, Zhen He, Alexandros P. Katsoulidis, Mercouri G Kanatzidis, J. Murray Gibson, Jiaxing Huang

Research output: Contribution to journalArticle

338 Citations (Scopus)

Abstract

Unlike flat sheets, crumpled paper balls have both high free volume and high compressive strength, and can tightly pack without significantly reducing the area of accessible surface. Such properties would be highly desirable for sheet-like materials such as graphene, since they tend to aggregate in solution and restack in the solid state, making their properties highly dependent on the material processing history. Here we report the synthesis of crumpled graphene balls by capillary compression in rapidly evaporating aerosol droplets. The crumpled particles are stabilized by locally folded, π-π stacked ridges as a result of plastic deformation, and do not unfold or collapse during common processing steps. In addition, they are remarkably aggregation-resistant in either solution or solid state, and remain largely intact and redispersible after chemical treatments, wet processing, annealing, and even pelletizing at high pressure. For example, upon compression at 55 MPa, the regular flat graphene sheets turn into nondispersible chunks with drastically reduced surface area by 84%, while the crumpled graphene particles can still maintain 45% of their original surface area and remain readily dispersible in common solvents. Therefore, crumpled particles could help to standardize graphene-based materials by delivering more stable properties such as high surface area and solution processability regardless of material processing history. This should greatly benefit applications using bulk quantities of graphene, such as in energy storage or conversion devices. As a proof of concept, we demonstrate that microbial fuel electrodes modified by the crumpled particles indeed outperform those modified with their flat counterparts.

Original languageEnglish
Pages (from-to)8943-8949
Number of pages7
JournalACS Nano
Volume5
Issue number11
DOIs
Publication statusPublished - Nov 22 2011

Fingerprint

Graphite
Graphene
graphene
Agglomeration
Processing
balls
histories
solid state
Pelletizing
compressive strength
Free volume
energy conversion
energy storage
Aerosols
Energy conversion
Energy storage
Particles (particulate matter)
Compressive strength
plastic deformation
ridges

Keywords

  • aerosol
  • aggregation-resistant particles
  • capillary compression
  • crumpling
  • graphene
  • graphene oxide
  • strain hardening

ASJC Scopus subject areas

  • Engineering(all)
  • Materials Science(all)
  • Physics and Astronomy(all)

Cite this

Luo, J., Jang, H. D., Sun, T., Xiao, L., He, Z., Katsoulidis, A. P., ... Huang, J. (2011). Compression and aggregation-resistant particles of crumpled soft sheets. ACS Nano, 5(11), 8943-8949. https://doi.org/10.1021/nn203115u

Compression and aggregation-resistant particles of crumpled soft sheets. / Luo, Jiayan; Jang, Hee Dong; Sun, Tao; Xiao, Li; He, Zhen; Katsoulidis, Alexandros P.; Kanatzidis, Mercouri G; Gibson, J. Murray; Huang, Jiaxing.

In: ACS Nano, Vol. 5, No. 11, 22.11.2011, p. 8943-8949.

Research output: Contribution to journalArticle

Luo, J, Jang, HD, Sun, T, Xiao, L, He, Z, Katsoulidis, AP, Kanatzidis, MG, Gibson, JM & Huang, J 2011, 'Compression and aggregation-resistant particles of crumpled soft sheets', ACS Nano, vol. 5, no. 11, pp. 8943-8949. https://doi.org/10.1021/nn203115u
Luo J, Jang HD, Sun T, Xiao L, He Z, Katsoulidis AP et al. Compression and aggregation-resistant particles of crumpled soft sheets. ACS Nano. 2011 Nov 22;5(11):8943-8949. https://doi.org/10.1021/nn203115u
Luo, Jiayan ; Jang, Hee Dong ; Sun, Tao ; Xiao, Li ; He, Zhen ; Katsoulidis, Alexandros P. ; Kanatzidis, Mercouri G ; Gibson, J. Murray ; Huang, Jiaxing. / Compression and aggregation-resistant particles of crumpled soft sheets. In: ACS Nano. 2011 ; Vol. 5, No. 11. pp. 8943-8949.
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