Au nanoparticles confined in hybrid shells of silica nanospheres for solvent-free aerobic cyclohexane oxidation

2017 ◽  
Vol 52 (12) ◽  
pp. 7186-7198 ◽  
Author(s):  
Lifang Chen ◽  
Yuanyuan Zhou ◽  
Zhenyou Gui ◽  
Hongye Cheng ◽  
Zhiwen Qi
Keyword(s):  
Au Nanoparticles ◽  
Solvent Free ◽  
Cyclohexane Oxidation ◽  
Silica Nanospheres

Defect-rich Ni–Ti layered double hydroxide as a highly efficient support for Au nanoparticles in base-free and solvent-free selective oxidation of benzyl alcohol

2018 ◽  
Vol 47 (15) ◽  
pp. 5226-5235 ◽  
Author(s):  
Mengran Liu ◽  
Guoli Fan ◽  
Jiaying Yu ◽  
Lan Yang ◽  
Feng Li
Keyword(s):  
Benzyl Alcohol ◽  
Selective Oxidation ◽  
Layered Double Hydroxide ◽  
Au Nanoparticles ◽  
Solvent Free ◽  
Highly Efficient ◽  
Oxidation Of Benzyl Alcohol ◽  
Enhanced Activity ◽  
Double Hydroxide

Defect-rich Ni–Ti layered double hydroxide supported Au nanoparticles exhibited greatly enhanced activity in the oxidation of benzyl alcohol.

scholarly journals Scorpionate complexes of vanadium(III or IV) as catalyst precursors for solvent-free cyclohexane oxidation with dioxygen

2009 ◽  
Vol 81 (7) ◽  
pp. 1217-1227 ◽  
Author(s):  
Gopal S. Mishra ◽  
Telma F. S. Silva ◽  
Luísa M. D. R. S. Martins ◽  
Armando J. L. Pombeiro
Keyword(s):  
High Selectivity ◽  
Main Product ◽  
Radical Reaction ◽  
Solvent Free ◽  
Cyclohexane Oxidation ◽  
Vanadium Complexes ◽  
Free Radical Reaction ◽  
Solvent Free Conditions ◽  
Pyrazinecarboxylic Acid ◽  
Radical Traps

The V-scorpionate vanadium complexes [VCl3{HC(pz)3}] (pz = pyrazolyl) and [VCl3{SO3C(pz)3}] catalyze cyclohexane oxidation with dioxygen, to cyclohexanol (the main product) and cyclohexanone, under solvent-free conditions. [VCl3{HC(pz)3}] provides the best activity (13 % conversion into the ketone and alcohol, with high selectivity, at the O2 pressure of 15 atm, at 140 ºC, 18 h reaction time). The reaction is further promoted (to 15 % conversion) by pyrazinecarboxylic acid (PCA). The use of C- or O-radical traps supports the involvement of a free-radical reaction mechanism. Several reaction parameters have been varied in a systematic study, directed toward optimization of the process.

An eco-friendly approach to the cyclohexane oxidation catalyzed by manganese porphyrins: Green and solvent-free systems

Polyhedron ◽  
2019 ◽  
Vol 163 ◽  
pp. 144-152 ◽  
Author(s):  
Adriano Silva Guimarães ◽  
Bernardo Schmitberger ◽  
Alexandre Moreira Meireles ◽  
Dayse Carvalho da Silva Martins ◽  
Gilson DeFreitas-Silva
Keyword(s):  
Solvent Free ◽  
Cyclohexane Oxidation ◽  
Manganese Porphyrins

Silver modified carbon quantum dots for solvent-free selective oxidation of cyclohexane

2015 ◽  
Vol 39 (4) ◽  
pp. 2815-2821 ◽  
Author(s):  
Yanmei Yang ◽  
Naiyun Liu ◽  
Shi Qiao ◽  
Ruihua Liu ◽  
Hui Huang ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Visible Light ◽  
Selective Oxidation ◽  
Carbon Quantum Dots ◽  
Solvent Free ◽  
Cyclohexane Oxidation

The silver modified carbon quantum dots (Ag–CQDs) exhibit excellent catalytic ability for cyclohexane oxidation under visible light.

scholarly journals Manganese porphyrins as efficient catalysts in solvent-free cyclohexane oxidation

2020 ◽  
Vol 13 (1) ◽  
pp. 1563-1574 ◽  
Author(s):  
Mariana Goes de Araujo Tôrres ◽  
Vinicius Santos da Silva ◽  
Ynara Marina Idemori ◽  
Gilson DeFreitas-Silva
Keyword(s):  
Solvent Free ◽  
Cyclohexane Oxidation ◽  
Manganese Porphyrins

scholarly journals Sinter-resistant gold nanoparticles encapsulated by zeolite nanoshell for oxidation of cyclohexane

RSC Advances ◽  
2016 ◽  
Vol 6 (10) ◽  
pp. 8015-8020 ◽  
Author(s):  
Shilpi Saxena ◽  
Rupesh Singh ◽  
Raj Ganesh S. Pala ◽  
Sri Sivakumar
Keyword(s):  
Gold Nanoparticles ◽  
Hydrothermal Synthesis ◽  
Gold Nanoparticle ◽  
Au Nanoparticles ◽  
Cyclohexane Oxidation

We report hydrothermal synthesis of sinter-resistant gold nanoparticle encapsulated by zeolite shells, which serve the role of stabilizing Au nanoparticles against sintering during cyclohexane oxidation.

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