10.1021/acs.langmuir.5b03310.s001
Atsumi Wakabayashi
Atsumi
Wakabayashi
Tatsuhiko Goto
Tatsuhiko
Goto
Toshiaki Dobashi
Toshiaki
Dobashi
Yasuyuki Maki
Yasuyuki
Maki
Glassy Behavior of a Tin Dioxide Nanoparticle Suspension
American Chemical Society
2015
rheological properties
Tin Dioxide Nanoparticle SuspensionDilute suspensions
SnO 2 nanoparticle suspension
SnO 2 nanoparticles
volume fraction φ
solidification mechanism
structure factors
Glassy Behavior
nanoparticle concentration
tin dioxide
2015-12-01 00:00:00
Journal contribution
https://acs.figshare.com/articles/journal_contribution/Glassy_Behavior_of_a_Tin_Dioxide_Nanoparticle_Suspension/2104627
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 (SnO<sub>2</sub>) nanoparticles,
we present dynamic viscoelasticity, dynamic and static light scattering,
and small-angle X-ray scattering experiments on a SnO<sub>2</sub> 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 SnO<sub>2</sub> nanoparticles
is Wigner glassy rather than gel-like.