Hierarchically porous titanium phosphate monoliths and their crystallization behavior in ethylene glycol

2016 ◽  
Vol 40 (5) ◽  
pp. 4153-4159 ◽  
Author(s):  
Yang Zhu ◽  
Koji Yoneda ◽  
Kazuyoshi Kanamori ◽  
Kazuyuki Takeda ◽  
Tsutomu Kiyomura ◽  
...  
Keyword(s):  
Ethylene Glycol ◽  
Crystallization Behavior ◽  
Sol Gel ◽  
Porous Titanium ◽  
Titanium Phosphate ◽  
Monolithic Material ◽  
Gel Method ◽  
Hierarchically Porous ◽  
Sol Gel Method

A new hierarchically porous titanium phosphate monolithic material is synthesized via a sol–gel method and its crystallization in ethylene glycol is observed.

scholarly journals Synthesis of Spherical Silica by Sol-Gel Method and Its Application as Catalyst Support

2011 ◽  
Vol 10 (2) ◽  
pp. 25
Author(s):  
Anirut Leksomboon ◽  
Bunjerd Jongsomjit
Keyword(s):  
Particle Size ◽  
Ethylene Glycol ◽  
Specific Surface ◽  
Surface Area ◽  
Specific Surface Area ◽  
Sol Gel ◽  
Weight Ratio ◽  
Gel Method ◽  
Sol Gel Method ◽  
Spherical Silica

In this present study, the spherical silica support was synthesized from tetraethyloxysilane (TEOS), water, sodium hydroxide, ethylene glycol and n-dodecyltrimethyl ammonium bromide (C12TMABr). The particle size was controlled by variation of the ethylene glycol co-solvent weight ratio of a sol-gel method preparation in the range of 0.10 to 0.50. In addition, the particle size apparently increases with high weight ratio of co-solvent, but the particle size distribution was broader. The standard deviation of particle diameter is large when the co-solvent weight ratio is more than 0.35 and less than 0.15. However, the specific surface area was similar for all weight ratios ranging from 1000 to 1300 m2/g. The synthesized silica was spherical and has high specific surface area. The cobalt was impregnated onto the obtained silica to produce the cobalt catalyst used for CO2 hydrogenation.</

Effects of Thermal Annealing on Formation of Micro Porous Titanium Oxide by the Sol?Gel Method

2006 ◽  
Vol 89 (11) ◽  
pp. 3536-3540 ◽  
Author(s):  
Hiroshi Koyama ◽  
Masayuki Fujimoto ◽  
Tomoya Ohno ◽  
Hisao Suzuki ◽  
Junzo Tanaka
Keyword(s):  
Titanium Oxide ◽  
Thermal Annealing ◽  
Sol Gel ◽  
Porous Titanium ◽  
Gel Method ◽  
Sol Gel Method ◽  
Porous Titanium Oxide

Silica Nanoparticles Synthesized from Maize Cob using Modified Sol-Gel Method

2020 ◽  
Vol 15 (2) ◽  
pp. 22-29
Author(s):  
Jeleel Adekunle Adebisi ◽  
Johnson Olumuyiwa Agunsoye ◽  
Sefiu Adekunle Bello ◽  
M. Haris ◽  
M. Senthilkumar ◽  
...  
Keyword(s):  
Ethylene Glycol ◽  
Silica Nanoparticles ◽  
Amorphous Silica ◽  
Sol Gel ◽  
Agricultural Wastes ◽  
Gel Method ◽  
Sol Gel Method ◽  
Maize Cob ◽  
Pre Treatment ◽  
Maize Cobs

Silica has found applications in many industries. Its production from agricultural wastes has been reported but with marked agglomeration of the final product. This work investigated production of silica nanoparticles from maize cob and effect of sol-gel modification with ethylene glycol on degree of agglomeration was also examined. This work also explored the effects of acid pre/post calcination treatments of the maize cob. Maize cob was treated with HCl prior to and after calcination. Using sol-gel method, silica was produced from both untreated and treated maize cobs. Ethylene glycol was also added to sodium silicate prior to precipitation of silica gel for modification of the conventional sol-gel procedure. The results showed that acid treatments affect the purity of silica nanoparticles. Ethylene glycol was observed to reduce degree of agglomeration in silica nanoparticles production from agricultural wastes. Silica nanoparticles of sizes between 5 and 50 nm were successfully synthesized. Keywords: Agricultural Wastes, Maize cob, Amorphous silica, Agglomeration, Sol-gel, Acid pre-treatment.

In situ preparation of hierarchically porous β-tricalcium phosphate bioceramic scaffolds by the sol-gel method combined with F127

2020 ◽  
Vol 46 (5) ◽  
pp. 6396-6405
Author(s):  
Jinran Zhang ◽  
Jian Zhou ◽  
Xiaoguang Huang ◽  
Lin Wang ◽  
Guizhen Liu ◽  
...  
Keyword(s):  
Tricalcium Phosphate ◽  
Sol Gel ◽  
Gel Method ◽  
Hierarchically Porous ◽  
Sol Gel Method ◽  
In Situ Preparation
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