A Simple and Low-Cost Method for the Preparation of Monodisperse Hollow Silica Spheres

2008 ◽  
Vol 112 (31) ◽  
pp. 11623-11629 ◽  
Author(s):  
Hua Zou ◽  
Shishan Wu ◽  
Qianping Ran ◽  
Jian Shen
Keyword(s):  
Low Cost ◽  
Silica Spheres ◽  
Hollow Silica ◽  
Hollow Silica Spheres

One-Pot Pathway: Fabricating Ordered Hollow Silica Spheres Using Sodium Silicate as the Precursor

2011 ◽  
Vol 64 (12) ◽  
pp. 1541 ◽  
Author(s):  
Weiwei Wu ◽  
Xinhua Yuan ◽  
Shunsheng Cao ◽  
Yi Ge ◽  
Songjun Li ◽  
...  
Keyword(s):  
Sodium Silicate ◽  
Low Cost ◽  
Reaction System ◽  
Silica Spheres ◽  
One Pot ◽  
Hollow Silica ◽  
Hollow Silica Spheres ◽  
Silica Source ◽  
Transmission Electron ◽  
Cationic Monomer

The preparation of hollow silica spheres via the sodium silicate route presents many advantages such as a low-cost silica source, and an environmentally friendly reaction system. Unfortunately, it is extremely hard to prepare the well-defined hollow silica spheres by using sodium silicate as the silica source owing to its rapid, disordered precipitation under the acid catalysis. As a result, we, in this paper, report a facile, economic, one-pot pathway for preparation of the ordered hollow silica spheres by employing a sodium silicate precursor. In this approach, the cationic polystyrene (CPS) templates can be first prepared via emulsifier-free emulsion polymerization by using the cationic monomer vinylbenzyltrimethylammonium chloride, then, the silica shells were attached on the surfaces of CPS particles via electrostatic interaction, finally CPS particles were in situ dissolved and removed by adding toluene to create ordered hollow silica spheres. Some modern techniques and instruments, including the transmission electron microscope, scanning electron microscopy, infrared spectroscopy, thermogravimetric analysis, and Brunauer-Emmett-Teller theory were employed to monitor and characterize the resulting hollow silica spheres.

One-Pot Preparation of Hollow Silica Spheres by Using Thermosensitive Poly(N-isopropylacrylamide) as a Reversible Template

Langmuir ◽  
2009 ◽  
Vol 25 (20) ◽  
pp. 12367-12373 ◽  
Author(s):  
Binyang Du ◽  
Zheng Cao ◽  
Zhenbing Li ◽  
Aixiong Mei ◽  
Xinghong Zhang ◽  
...  
Keyword(s):  
Silica Spheres ◽  
One Pot ◽  
Hollow Silica ◽  
Hollow Silica Spheres

Ultralow thermal conductivity in graphene–silica porous ceramics with a special saucer structure of graphene aerogels

2019 ◽  
Vol 7 (4) ◽  
pp. 1574-1584 ◽  
Author(s):  
Junmei Fan ◽  
Si Hui ◽  
Trevor P. Bailey ◽  
Alexander Page ◽  
Ctirad Uher ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Compressive Strength ◽  
Spark Plasma Sintering ◽  
Porous Ceramics ◽  
Silica Spheres ◽  
Hollow Silica ◽  
Graphene Aerogels ◽  
Hollow Silica Spheres ◽  
Plasma Sintering ◽  
Spark Plasma

Graphene aerogels grown on hollow silica spheres through spark plasma sintering lead to ultralow thermal conductivity and high compressive strength.

Fabrication of hollow silica spheres using droplet templates derived from a miniemulsion technique

2008 ◽  
Vol 321 (1) ◽  
pp. 67-73 ◽  
Author(s):  
Bo Peng ◽  
Min Chen ◽  
Shuxue Zhou ◽  
Limin Wu ◽  
Xiaohua Ma
Keyword(s):  
Silica Spheres ◽  
Hollow Silica ◽  
Hollow Silica Spheres

Preparation of porous hollow silica spheres via a layer-by-layer process and the chromatographic performance

2017 ◽  
Vol 11 (1) ◽  
pp. 33-41 ◽  
Author(s):  
Xiaobing Wei ◽  
Cairong Gong ◽  
Xujuan Chen ◽  
Guoliang Fan ◽  
Xinhua Xu
Keyword(s):  
Silica Spheres ◽  
Layer By Layer ◽  
Hollow Silica ◽  
Hollow Silica Spheres

Highly efficient and stable CsPbBr3 perovskite quantum dots by encapsulation in dual-shell hollow silica spheres for WLEDs

2020 ◽  
Vol 7 (10) ◽  
pp. 2060-2071 ◽  
Author(s):  
Lei Qiu ◽  
Hang Yang ◽  
Zhigao Dai ◽  
Fengxu Sun ◽  
Jiarui Hao ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Silica Spheres ◽  
Silica Nanospheres ◽  
Hollow Silica ◽  
Highly Efficient ◽  
Hollow Silica Spheres ◽  
Direct Exposure ◽  
Perovskite Quantum Dots ◽  
Hollow Silica Nanospheres

A highly stable and efficient CsPbBr3@SiO2 composite phosphor is achieved by protecting the CsPbBr3 QDs from direct exposure to the atmosphere by encapsulating CsPbBr3 into dual-shell hollow silica nanospheres.

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