Glassy Behavior of a Tin Dioxide Nanoparticle Suspension

Atsumi Wakabayashi, Tatsuhiko Goto, Toshiaki Dobashi, Yasuyuki Maki

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

Dilute suspensions of charged colloidal particles with a short-range attraction and long-range repulsion can exhibit a variety of arrested states. In many applications using suspensions of charged nanoparticles, the optimization of the process requires the understanding of the mechanism underlying the stability and the rheological properties of the suspensions. In an attempt to clarify the solidification mechanism for dilute suspensions of tin dioxide (SnO2) nanoparticles, we present dynamic viscoelasticity, dynamic and static light scattering, and small-angle X-ray scattering experiments on a SnO2 nanoparticle suspension with a nanoparticle concentration of 25.0 wt % (volume fraction φ = 0.045). The behaviors of the observed dynamic and static structure factors reveal that the aging of SnO2 nanoparticles is Wigner glassy rather than gel-like.

Original languageEnglish
Pages (from-to)13022-13028
Number of pages7
JournalLangmuir
Volume31
Issue number47
DOIs
Publication statusPublished - Nov 5 2015
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Electrochemistry
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Materials Science(all)
  • Spectroscopy

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