Reactive polyaniline-supported sub-10 nm noble metal nanoparticles protected by a mesoporous silica shell: controllable synthesis and application as efficient recyclable catalysts

2012 ◽  
Vol 22 (13) ◽  
pp. 5932 ◽  
Author(s):  
Jie Han ◽  
Lu Wang ◽  
Rong Guo
2018 ◽  
Vol 47 (27) ◽  
pp. 9072-9078 ◽  
Author(s):  
Xue Wang ◽  
Yapeng He ◽  
Yali Ma ◽  
Junmin Liu ◽  
Yunling Liu ◽  
...  

We report the design and realization of yolk–shell structured nanospheres with periodic mesoporous organosilica (PMO) nanospheres or noble metal nanoparticles encapsulated in mesoporous silica shellsviaa selective etching method.


Catalysts ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 621
Author(s):  
Ali Zebardasti ◽  
Mohammad G. Dekamin ◽  
Esmail Doustkhah

Hybridisation of mesoporous organosilicas (MO) to reinforce the surface capability in adsorption and stabilisation of noble metal nanoparticles is of great attention in generating/supporting noble metal within their matrices and transforming them into efficient heterogeneous catalysts. Here, we used a unique hybrid of organic-inorganic mesoporous silica in which pore profile pattern was similar to the well-known mesoporous silica, SBA-15 for catalysis. This hybrid mesoporous organosilica was further engaged as a support in the synthesis and stabilisation of Pd nanoparticles on its surface, and then, the obtained Pd-supported MO was employed as a heterogeneous green catalyst in the conversion of aqueous p-nitrophenol (PNP) to p-aminophenol (PAP) at room temperature with efficient recyclability.


2018 ◽  
Vol 54 (51) ◽  
pp. 7030-7033 ◽  
Author(s):  
Bo Sun ◽  
Tingjun Fu ◽  
Hua Chun Zeng

Various noble metal nanoparticles smaller than 2 nm were immobilized into spherical mesoporous silica (30 nm) via a self-assembly method.


2021 ◽  
Author(s):  
Ali Zebardasti ◽  
Mohammad G. Dekamin ◽  
Esmail Doustkhah

Abstract Hybridization of mesoporous organosilica (MO) to reinforce the surface capability in adsorption and stabilization of noble metal nanoparticles are of great attention in generating noble metal-based catalysts. Here, we used a unique hybrid of organic-inorganic mesoporous silica which in pore profile pattern was similar to the well-known mesoporous silica, SBA-15. This hybrid mesoporous silica was further incorporated in the synthesis and stabilization of Pd nanoparticles on its surface and then, the obtained Pd supported MO, was employed as a heterogeneous green catalyst in the conversion of p-nitrophenol (PNP) to p-aminophenol (PAP) at room temperature with efficient recyclability.


RADIOISOTOPES ◽  
2020 ◽  
Vol 69 (5) ◽  
pp. 155-161
Author(s):  
Naoto Uegaki ◽  
Satoshi Seino ◽  
Shun Fujieda ◽  
Takashi Nakagawa ◽  
Junichiro Kugai ◽  
...  

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