Metal Nanoparticles Confined in the Nanospace of Double-Shelled Hollow Silica Spheres for Highly Efficient and Selective Catalysis

2016 ◽  
Vol 28 (16) ◽  
pp. 5596-5600 ◽  
Author(s):  
Shunsheng Cao ◽  
Jun Chang ◽  
Long Fang ◽  
Limin Wu
Keyword(s):  
Metal Nanoparticles ◽  
Silica Spheres ◽  
Hollow Silica ◽  
Highly Efficient ◽  
Hollow Silica Spheres ◽  
Selective Catalysis

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.

scholarly journals Spherical Polyelectrolyte Brushes as Templates to Prepare Hollow Silica Spheres Encapsulating Metal Nanoparticles

Nanomaterials ◽  
2020 ◽  
Vol 10 (4) ◽  
pp. 799 ◽  
Author(s):  
Qingsong Yang ◽  
Li Li ◽  
Fang Zhao ◽  
Yunwei Wang ◽  
Zhishuang Ye ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Metal Nanoparticles ◽  
Hollow Spheres ◽  
High Catalytic Activity ◽  
Silica Spheres ◽  
Hollow Silica ◽  
Polyelectrolyte Brushes ◽  
Hollow Silica Spheres ◽  
Potential Applications ◽  
Spherical Polyelectrolyte Brushes

Integrating hollow silica spheres with metal nanoparticles to fabricate multifunctional hybrid materials has attracted increasing attention in catalysis, detection, and drug delivery. Here, we report a simple and general method to prepare hollow silica spheres encapsulating silver nanoparticles (Ag@SiO2) based on spherical polyelectrolyte brushes (SPB), which consist of a polystyrene core and densely grafted poly (acrylic acid) (PAA) chains. SPB were firstly used as nanoreactors to generate silver nanoparticles in situ and then used as sacrificial templates to prepare hybrid hollow silica spheres. The resulted Ag@SiO2 composites exhibit high catalytic activity and good reusability for the reduction of 4-nitrophenol to 4-aminophenol by NaBH4. More importantly, this developed approach can be extended to the encapsulation of other metal nanoparticles such as gold nanoparticles into the hollow silica spheres. This work demonstrates that SPB are promising candidates for the preparation of hollow spheres with encapsulated metal nanoparticles and the resulted hybrid spheres show great potential applications in catalysis.

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
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