Platinum nanoparticles generated in spherical polyelectrolyte brushes and their high catalytic activity

2011 ◽  
Vol 7 (6) ◽  
pp. 886-891 ◽  
Author(s):  
Shuang Wu ◽  
Zhongming Zhu ◽  
Till Siepenkötter ◽  
Xuhong Guo
Keyword(s):  
Catalytic Activity ◽  
Platinum Nanoparticles ◽  
High Catalytic Activity ◽  
Polyelectrolyte Brushes ◽  
Spherical Polyelectrolyte Brushes

High Catalytic Activity of Platinum Nanoparticles Immobilized on Spherical Polyelectrolyte Brushes

Langmuir ◽  
2005 ◽  
Vol 21 (26) ◽  
pp. 12229-12234 ◽  
Author(s):  
Yu Mei ◽  
Geeta Sharma ◽  
Yan Lu ◽  
Matthias Ballauff ◽  
Markus Drechsler ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Platinum Nanoparticles ◽  
High Catalytic Activity ◽  
Polyelectrolyte Brushes ◽  
Spherical Polyelectrolyte Brushes

Heterogeneous Catalytic Activity of Platinum Nanoparticles Hosted in Mesoporous Silica Thin Films Modified with Polyelectrolyte Brushes

2013 ◽  
Vol 5 (18) ◽  
pp. 8833-8840 ◽  
Author(s):  
Matías Rafti ◽  
Annette Brunsen ◽  
M. Cecilia Fuertes ◽  
Omar Azzaroni ◽  
Galo J. A. A. Soler-Illia
Keyword(s):  
Thin Films ◽  
Catalytic Activity ◽  
Mesoporous Silica ◽  
Platinum Nanoparticles ◽  
Polyelectrolyte Brushes ◽  
Heterogeneous Catalytic ◽  
Silica Thin Films

Cooperative catalytic activity of cyclodextrin and Ag nanoparticles immobilized on spherical polyelectrolyte brushes

AIChE Journal ◽  
2014 ◽  
Vol 60 (6) ◽  
pp. 1977-1982 ◽  
Author(s):  
Jianjia Liu ◽  
Jie Wang ◽  
Zhongming Zhu ◽  
Li Li ◽  
Xuhong Guo ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Ag Nanoparticles ◽  
Polyelectrolyte Brushes ◽  
Spherical Polyelectrolyte Brushes

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.

Highly dispersed platinum nanoparticles generated in viologen micelles with high catalytic activity and stability

2013 ◽  
Vol 1 (39) ◽  
pp. 12206 ◽  
Author(s):  
Gui-Qi Gao ◽  
Ling Lin ◽  
Cong-Min Fan ◽  
Qing Zhu ◽  
Rui-Xia Wang ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Platinum Nanoparticles ◽  
High Catalytic Activity ◽  
Highly Dispersed

In situ synthesis of ultra-small platinum nanoparticles using a water soluble polyphenolic polymer with high catalytic activity

RSC Advances ◽  
2014 ◽  
Vol 4 (93) ◽  
pp. 51745-51753 ◽  
Author(s):  
Tanmoy Maji ◽  
Sanjib Banerjee ◽  
Mrinmoy Biswas ◽  
Tarun K. Mandal
Keyword(s):  
Catalytic Activity ◽  
Organic Solvent ◽  
Platinum Nanoparticles ◽  
In Situ Synthesis ◽  
Reduction Technique ◽  
Water Soluble ◽  
High Catalytic Activity

Ultra-small platinum nanoparticles are generated by in situ polymer reduction technique which shows high catalytic activity in water and in organic solvent.

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