Green oxidation of alkylaromatics using molecular oxygen over mesoporous manganese silicate catalysts

2020 ◽  
Vol 49 (28) ◽  
pp. 9710-9718
Author(s):  
Manickam Selvaraj ◽  
Asim Bhaumik ◽  
Mohammed A. Assiri ◽  
Ch. Subrahmanyam ◽  
Chang-Sik Ha
Keyword(s):  
Catalytic Activity ◽  
Mesoporous Silica ◽  
Molecular Oxygen ◽  
Solvent Free ◽  
Manganese Silicate ◽  
Highly Active ◽  
Green Oxidation ◽  
Benzylic Oxidation

Highly active green mesoporous MnSBA-15(4) has unprecedented catalytic activity in solvent-free benzylic oxidation of alkylaromatics with molecular oxygen, among other Mn-containing mesoporous silica catalysts.

Ordered mesoporous silica cubic particles decorated with silver nanoparticles: a highly active and recyclable heterogeneous catalyst for the reduction of 4-nitrophenol

2019 ◽  
Vol 48 (8) ◽  
pp. 2692-2700 ◽  
Author(s):  
Hui-Tao Fan ◽  
Xue-Guo Liu ◽  
Xiao-Jing Xing ◽  
Bo Li ◽  
Kun Wang ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Catalytic Activity ◽  
Mesoporous Silica ◽  
Potential Application ◽  
High Surface ◽  
High Surface Area ◽  
Ordered Mesoporous Silica ◽  
Highly Active ◽  
Ordered Mesoporous ◽  
Recyclable Heterogeneous Catalyst

An Ag–OMS-C nanocomposite with a high surface area was proposed, and its potential application for catalytic activity was highlighted.

Highly active enzymes immobilized in large pore colloidal mesoporous silica nanoparticles

2019 ◽  
Vol 43 (4) ◽  
pp. 1671-1680 ◽  
Author(s):  
Dorothée Gößl ◽  
Helena Singer ◽  
Hsin-Yi Chiu ◽  
Alexandra Schmidt ◽  
Martina Lichtnecker ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Carbonic Anhydrase ◽  
Horseradish Peroxidase ◽  
Mesoporous Silica ◽  
Silica Nanoparticles ◽  
Mesoporous Silica Nanoparticles ◽  
Click Reactions ◽  
Highly Active ◽  
Large Pore ◽  
Colorimetric Assays

Carbonic anhydrase and horseradish peroxidase are immobilized inside the ordered material by click reactions. Colorimetric assays prove their catalytic activity.

Bismuth-Containing SBA-15 Mesoporous Silica Catalysts for Solvent-Free Liquid-Phase Oxidation of Cyclohexane by Molecular Oxygen

2007 ◽  
Vol 90 (9) ◽  
pp. 1837-1847 ◽  
Author(s):  
Huan-Ling Wang ◽  
Rong Li ◽  
Yun-Feng Zheng ◽  
Hang-Ning Chen ◽  
Jun Jin ◽  
...  
Keyword(s):  
Liquid Phase ◽  
Mesoporous Silica ◽  
Molecular Oxygen ◽  
Solvent Free ◽  
Liquid Phase Oxidation ◽  
Phase Oxidation

Solvent-free benzylic oxidation of aromatics over Cu(II)-containing propylsalicylaldimine anchored on the surface of mesoporous silica catalysts †

2021 ◽  
Author(s):  
Manickam Selvaraj ◽  
Mohammed A. Assiri ◽  
Samuel Lalthazuala Rokhum ◽  
Manjunatha Channegowda ◽  
Jimmy Nelson Appaturi ◽  
...  
Keyword(s):  
Mesoporous Silica ◽  
Solvent Free ◽  
Type Material ◽  
Santa Barbara ◽  
Aromatic Ketones ◽  
Benzylic Oxidation

A sustainable method were used to produce aromatic ketones by the solvent-free benzylic oxidation of aromatics over mesoporous Cu(II)-containing propylsalicylaldimine anchored on the surface of Santa Barbara Amorphous type material-15...

Selective oxidation of cyclohexane on a novel catalyst Mg–Cu/SBA-15 by molecular oxygen

2015 ◽  
Vol 44 (39) ◽  
pp. 17381-17388 ◽  
Author(s):  
Xiaogang Duan ◽  
Weimin Liu ◽  
Lumin Yue ◽  
Wei Fu ◽  
Minh Ngoc Ha ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Liquid Phase ◽  
Mesoporous Silica ◽  
Molecular Oxygen ◽  
Magnesium Oxide ◽  
Selective Oxidation ◽  
Liquid Phase Oxidation ◽  
Phase Oxidation ◽  
Novel Catalyst

Novel catalysts with copper and magnesium oxide co-supported on mesoporous silica exhibited a special catalytic activity and selectivity for the liquid-phase oxidation of cyclohexane by O2.

Deactivation of arenetitanium(II) bromoalane complexes in the cyclotrimerization of butadiene

1986 ◽  
Vol 51 (12) ◽  
pp. 2751-2759 ◽  
Author(s):  
Jindřich Poláček ◽  
Helena Antropiusová ◽  
Lidmila Petrusová ◽  
Karel Mach
Keyword(s):  
Catalytic Activity ◽  
Catalytic System ◽  
Model System ◽  
Highly Active ◽  
Catalytic Stability

The C6H6.Ti(II)(AlBr4)2 (Ib) catalyst deactivates during the butadiene cyclotrimerization to give a solid containing all titanium (mostly as TiBr3) and a mixture of AlBr3 and RAlBr2 compounds dissolved in benzene. The residual cationic catalytic activity of the deactivated Ib system is due to presence of AlBr3. In contrast to TiCl3, the deactivated Ib system and the model system TiBr3 + AlBr3 are not activated by the addition of EtAlCl2 in the presence of butadiene: the highly active benzenetitanium(II) system is re-constituted only after reduction of TiBr3 with Et3Al followed by the addition of EtAlCl2. The addition of Et2AlBr to Ib accelerates the deactivation of the system. Deactivation products of this system contain mainly Ti(II) species which forms benzenetitanium(II) catalytic system after addition of EtAlCl2. All the EtAlCl2 reactivated systems produce (Z, E, E)-1,5,9-cyclododecatriene with high catalytic stability and considerable selectivity (>90%). This behaviour points to the catalysis by benzenetitanium(II) chloroalane complexes containing only low amount of bromine atoms and ethyl groups.

Highly active zinc oxide-supported lithium oxide catalyst for solvent-free Knoevenagel condensation

2021 ◽  
Vol 133 (3) ◽  
Author(s):  
Prasad Sunkara ◽  
Keshavulu Masula ◽  
Veerasomaiah Puppala ◽  
Yadagiri Bhongiri ◽  
Vijay Kumar Pasala ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Oxide Catalyst ◽  
Knoevenagel Condensation ◽  
Solvent Free ◽  
Lithium Oxide ◽  
Highly Active
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