Enhanced Electrorheological Properties of PMMA–Titanium Oxide Nanocomposites

2020 ◽  
Vol 2 (8) ◽  
pp. 3411-3421
Author(s):  
Miao Huo ◽  
Mingchao Ma ◽  
Yunlong Guo
Keyword(s):  
Titanium Oxide ◽  
Electrorheological Properties

Synthesis and electrorheological properties of oxalate group-modified amorphous titanium oxide nanoparticles

2010 ◽  
Vol 288 (18) ◽  
pp. 1739-1744 ◽  
Author(s):  
Fenghua Liu ◽  
Gaojie Xu ◽  
Jinghua Wu ◽  
Yuchuan Cheng ◽  
Jianjun Guo ◽  
...  
Keyword(s):  
Titanium Oxide ◽  
Oxide Nanoparticles ◽  
Titanium Oxide Nanoparticles ◽  
Oxalate Group ◽  
Electrorheological Properties

Synthesis and Enhanced Electrorheological Properties of TS-1/Titanium Oxide Core/Shell Nanocomposite

2020 ◽  
Vol 59 (3) ◽  
pp. 1168-1182
Author(s):  
Weijian Sun ◽  
Haojie Song ◽  
Zhenyu Xi ◽  
Jiabin Ma ◽  
Baoxiang Wang ◽  
...  
Keyword(s):  
Titanium Oxide ◽  
Core Shell ◽  
Electrorheological Properties

Electrorheological properties of suspensions of hollow globular titanium oxide/polypyrrole particles

2011 ◽  
Vol 290 (1) ◽  
pp. 41-48 ◽  
Author(s):  
M. Sedlačík ◽  
M. Mrlík ◽  
V. Pavlínek ◽  
P. Sáha ◽  
O. Quadrat
Keyword(s):  
Titanium Oxide ◽  
Electrorheological Properties

Electron Holographic Nano-Characterization of Gold Catalyst at Interface

2002 ◽  
Vol 727 ◽  
Author(s):  
S. Ichikawa ◽  
T. Akita ◽  
M. Okumura ◽  
M. Haruta ◽  
K. Tanaka
Keyword(s):  
Contact Angle ◽  
Titanium Oxide ◽  
Gold Catalyst ◽  
Three Dimensional ◽  
High Resolution Electron Microscopy ◽  
Electron Holography ◽  
Gold Particles ◽  
Oxide Support ◽  
The Mean ◽  
A Charge

AbstractThe catalytic properties of nanostructured gold catalyst are known to depend on the size of the gold particles and to be activated when the size decreases to a few nanometers. We investigated the size dependence of the three-dimensional nanostructure on the mean inner potential of gold catalysts supported on titanium oxide using electron holography and high-resolution electron microscopy (HREM). The contact angle of the gold particles on the titanium oxide tended to be over 90° for gold particles with a size of over 5 nm, and below 90° for a size of below 2 nm. This decreasing change in the contact angle (morphology) acts to increase the perimeter and hence the area of the interface between the gold and titanium oxide support, which is considered to be an active site for CO oxidation. The mean inner potential of the gold particles also changed as their size decreased. The value of the inner potential of gold, which is approximately 25 V in bulk state, rose to over 40 V when the size of the gold particles was less than 2 nm. This phenomenon indicates the existence of a charge transfer at the interface between gold and titanium oxide. The 3-D structure change and the inner potential change should be attributed to the specific electronic structure at the interface, owing to both the “nano size effect” and the “hetero-interface effect.”

Sign in / Sign up

Export Citation Format

Share Document