Inclusion of size controlled gallium oxide nanoparticles into highly ordered 3D mesoporous silica with tunable pore diameters and their unusual catalytic performance

2010 ◽  
Vol 20 (45) ◽  
pp. 10120 ◽  
Author(s):  
H. Oveisi ◽  
C. Anand ◽  
A. Mano ◽  
Salem S. Al-Deyab ◽  
P. Kalita ◽  
...  
Keyword(s):  
Mesoporous Silica ◽  
Gallium Oxide ◽  
Catalytic Performance ◽  
Oxide Nanoparticles ◽  
Size Controlled

scholarly journals Exploiting the Potential of Biosilica from Rice Husk as Porous Support for Catalytically Active Iron Oxide Nanoparticles

Nanomaterials ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 1259
Author(s):  
Ana Franco ◽  
Rafael Luque ◽  
Carolina Carrillo-Carrión
Keyword(s):  
Iron Oxide ◽  
Iron Oxide Nanoparticles ◽  
Rice Husk ◽  
Heterogeneous Catalysts ◽  
Catalytic Performance ◽  
Added Value ◽  
Oxide Nanoparticles ◽  
Porous Support ◽  
Green Materials ◽  
Catalytically Active

Biomass-derived materials are put forward as eco-friendly alternatives to design heterogeneous catalysts. To contribute in this field, we explored the potential of mesoporous biogenic silica (RH-Silica) obtained from lignocellulosic waste, in particular from rice husk, as an inorganic support to prepare heterogenized iron oxide-based catalysts. Mechanochemistry, considered as a green and sustainable technique, was employed to synthetize iron oxide nanoparticles in pure hematite phase onto the biosilica (α-Fe2O3/RH-Silica), making this material a good candidate to perform catalyzed organic reactions. The obtained material was characterized by different techniques, and its catalytic activity was tested in the selective oxidation of styrene under microwave irradiation. α-Fe2O3/RH-Silica displayed a good catalytic performance, achieving a conversion of 45% under optimized conditions, and more importantly, with a total selectivity to benzaldehyde. Furthermore, a good reusability was achieved without decreasing its activity after multiple catalytic cycles. This work represents a good example of using sustainable approaches and green materials as alternatives to conventional methods in the production of high-added value products.

Comparative study on the magnetic properties of iron oxide nanoparticles loaded on mesoporous silica and carbon materials with different structure

2009 ◽  
Vol 121 (1-3) ◽  
pp. 178-184 ◽  
Author(s):  
Sher Alam ◽  
Chokkalingam Anand ◽  
Radhakrishnan Logudurai ◽  
Veerappan V. Balasubramanian ◽  
Katsuhiko Ariga ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Iron Oxide ◽  
Mesoporous Silica ◽  
Comparative Study ◽  
Iron Oxide Nanoparticles ◽  
Carbon Materials ◽  
Oxide Nanoparticles

Shape- and size-controlled synthesis of Cu nanoparticles wrapped on RGO nanosheet catalyst and their outstanding stability and catalytic performance in the hydrogenation reaction of dimethyl oxalate

2018 ◽  
Vol 6 (39) ◽  
pp. 19133-19142 ◽  
Author(s):  
Mohamed Abbas ◽  
Zheng Chen ◽  
Jiangang Chen
Keyword(s):  
Catalytic Performance ◽  
Hydrogenation Reaction ◽  
Controlled Synthesis ◽  
Cu Nanoparticles ◽  
Dimethyl Oxalate ◽  
Size Controlled ◽  
Shape And Size

A novel sonochemical approach was developed for the synthesis of morphology-controlled Cu NPs wrapped on RGO NSs catalysts and their superior stability and catalytic performance in dimethyl oxalate hydrogenation reaction.

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