scholarly journals Supported copper on a diamide–diacid-bridged PMO: an efficient hybrid catalyst for the cascade oxidation of benzyl alcohols/Knoevenagel condensation

RSC Advances ◽  
2022 ◽  
Vol 12 (1) ◽  
pp. 437-450
Author(s):  
Ehsan Valiey ◽  
Mohammad G. Dekamin
Keyword(s):  
Knoevenagel Condensation ◽  
Hybrid Catalyst ◽  
Periodic Mesoporous Organosilica ◽  
Benzyl Alcohols ◽  
Mesoporous Organosilica

In this study, a novel periodic mesoporous organosilica (PMO) containing diamide–diacid bridges was conveniently prepared using ethylenediaminetetraacetic dianhydride to support Cu(ii) species and affording Cu@EDTAD-PMO nanoparticles efficiently.

scholarly journals Palladium Comprising Dicationic Bipyridinium Supported Periodic Mesoporous Organosilica (PMO): Pd@Bipy–PMO as an Efficient Hybrid Catalyst for Suzuki–Miyaura Cross-Coupling Reaction in Water

Catalysts ◽  
2019 ◽  
Vol 9 (2) ◽  
pp. 140 ◽  
Author(s):  
Arefeh Ahadi ◽  
Sadegh Rostamnia ◽  
Paria Panahi ◽  
Lee Wilson ◽  
Qingshan Kong ◽  
...  
Keyword(s):  
Electron Microscope ◽  
Coupling Reaction ◽  
Catalytic Efficiency ◽  
Nitrogen Adsorption ◽  
Diffraction Field ◽  
Coupling Reactions ◽  
Hybrid Catalyst ◽  
Periodic Mesoporous Organosilica ◽  
Mesoporous Organosilica ◽  
Cross Coupling Reaction

In this study, we developed a novel catalysts consisting of periodic mesoporous organosilica functionalized with bipyridinium ionic liquid supported palladium. The physiochemical properties of the hybrid catalyst were investigated using Fourier transform infrared spectroscopy, small angle X–ray powder diffraction, field emission scanning electron microscope, transmission electron microscope, nitrogen adsorption–desorption analyses, and atomic absorption spectroscopy. The stabilized Pd species inside the mesochannels provided good catalytic efficiency for the Suzuki–Miyaura coupling reactions in water. The activity of the designed catalysts retained for several consecutive recycle runs. The stability, recoverability, and reusability of the designed heterogeneous catalyst were also studied under various reaction conditions.

Light-harvesting photocatalysis for H2 evolution by methylacridone-bridged periodic mesoporous organosilica

2021 ◽  
Vol 287 ◽  
pp. 119965
Author(s):  
Yasutomo Goto ◽  
Ken-ichi Yamanaka ◽  
Masataka Ohashi ◽  
Yoshifumi Maegawa ◽  
Shinji Inagaki
Keyword(s):  
Light Harvesting ◽  
H2 Evolution ◽  
Periodic Mesoporous Organosilica ◽  
Mesoporous Organosilica

Controlled PEGylation of periodic mesoporous organosilica nanospheres for improving their stability in physiological solutions

2019 ◽  
Vol 30 (4) ◽  
pp. 929-932 ◽  
Author(s):  
Xiaodan Su ◽  
Jun Tao ◽  
Qing Wang ◽  
Peng Xu ◽  
Wei Luo ◽  
...  
Keyword(s):  
Periodic Mesoporous Organosilica ◽  
Mesoporous Organosilica

Chemical sensors based on nano-sized lanthanide-grafted periodic mesoporous organosilica hybrid materials

2019 ◽  
Vol 7 (26) ◽  
pp. 8109-8119 ◽  
Author(s):  
Anna M. Kaczmarek ◽  
Pascal Van Der Voort
Keyword(s):  
Hybrid Materials ◽  
Chemical Sensors ◽  
Aprotic Solvent ◽  
Periodic Mesoporous Organosilica ◽  
Ion Sensing ◽  
Mesoporous Organosilica

Nano-sized PMOs grafted with lanthanides show selective ion sensing for Pb2+ and Cr3+ and strong solvatochromism allowing their use as protic and aprotic solvent sensors.

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