... 2008
Keywords:
Titania
Flower- like
Sphere
Nanosheets
Template-free
Hydrothermal
abstract
Monodispersed flower -like titanate superstructure was successfully prepared by simple hydrothermal
process ... AS
(d) Flower- like TiO
2
(calcined 500
o
C)
(c) Flower- like titanate
Fig. 6. Photocatalytic H
2
evolution from water splitting reaction over (a) ST-01
(anatase powder),...
... SnO
2
nanowires at low temperature for 15–20 min.
We investigated the synthesis of SnO
2
nanowires/nanoneedles
by a low- temperature (95–98
◦
C) hydrothermal method. The as-
grown SnO
2
nanowires ... reported a low-
temperature hydrothermal synthesis of SnO
2
nanorods at 160
◦
C,
but the process requires at least 12h. Vayssieres and Graetzel [15]
reported SnO
2
nanorods...
... Okawa
a
a
Graduate School of Science and Technology, Chiba University, Yayoicho 1-3 3, Inageku, Chiba 26 3-8 522, Japan
b
Faculty of Engineering, Chiba University, Yayoicho 1-3 3, Inageku, Chiba 26 3-8 522, Japan
Received ... etc.
Hydrothermal synthesis from Na
2
WO
4
in a low pH region is
one of the typical ways to prepare tungsten oxide hydrates.
Freedman [5] investigate...
... structures of alkali-metal titanates,
A
2
Ti
n
O
2n+1
are well-known. All of them have a
monoclinic structure with almost the same b value
[4,8]. Alkali-metal titanates with a high alkali-
metal ... Journal of Crystal Growth 275 (2005) e2371–e2376
Hydrothermal synthesis of Na
2
Ti
6
O
13
and TiO
2
whiskers
Dong-Seok Seo
a
, Hwan Kim
a
, Jong-Kook Lee
b,Ã
a
School of Materials Sc...
... solu bility of WO
3
is influenced
by the pH value of solution. In our experiments, the rod-
shaped WO
3
particles could decompose into primary nano-
particlesduetothechangeofpHvalueofthesolution
caused ... self- assemble to submicroscale spheres
with the proceeding of the reaction. Such self-assembly of
nanoparticles is favorable to decrease the surface energy of
the system.
Fig. 2...
... particle size and low- temperature, cost-effective,
and less-complicated techniques. Under hydrothermal conditions,
many starting materials can undergo quite unexpected reactions,
which are often accompanied ... al. [20]. The 1D nanostructure synthesis
using inorganic salt instead of surfactant and water-soluble high
molecule has strong points in non-pollution, low- cost, easy-
clean...
... Evaluation of sensor performance
Fig. 9 shows the responses of typical sensors pre-
pared with the compositions of (a) Pd and Pt /titanate
nanotubes (30 wt%) + ␥-Al
2
O
3
(70 wt%), (b) titanate nan-
otubes ... (2007) 320–325
Synthesis of Pd or Pt /titanate nanotube and its application
to catalytic type hydrogen gas sensor
Chi-Hwan Han
a
, Dae-Woong Hong
a
, Il-Jin Kim
a
, Jihye...
... extended durations of 24h
and 48h respectively. Cell survival after low
temperature exposure was assessed through the MTT
(Tetrazolium salt 3-( 4, 5-dimethylthiazol-2-yl )-2 , 5-
diphenyltetrazolium ...
expression of
TRA- 1-8 1 was
indicated by
red fluores-
cence under a
wavelength of
570 nm (Rhoda-
mine).
The hESC
colonies were
assigned into 3
grades [9] ac-
co...