K-10 montmorillonite: An efficient and reusable catalyst for the aerobic CC bond cleavage of α-substituted ketones

Younssi, Iman El; Rhadfi, Tarik; Atlamsani, Ahmed; Quisefit, J.P.; Herbst, Frédéric; Draoui, Khalid

doi:10.1016/j.molcata.2012.07.022

Cited by 19 publications

(6 citation statements)

References 41 publications

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“…[14,32]. It should be noted that for both samples, peaks corresponding to quartz were also unequivocally identified; this has already been shown by the previous studies [33][34][35]. The spectrum totally agrees with the previously reported literature for the montmorillonite and the modified clay [31,32,36].…”

Section: Ann Modelingsupporting

confidence: 90%

Photocatalytic degradation of ciprofloxacin by synthesized TiO2 nanoparticles on montmorillonite: Effect of operation parameters and artificial neural network modeling

Hassani

Khataee

Karaca

2015

Journal of Molecular Catalysis A: Chemical

194

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Section: Ann Modelingsupporting

confidence: 90%

Photocatalytic degradation of ciprofloxacin by synthesized TiO2 nanoparticles on montmorillonite: Effect of operation parameters and artificial neural network modeling

Hassani

Khataee

Karaca

2015

Journal of Molecular Catalysis A: Chemical

194

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“…Moreover, the higher acidity of the 15NiZr catalyst can favor C−C cleavage, producing ring-opening products. 44 The deactivation of this catalyst could be caused by the coke deposition on the active sites (determined by XPS and XRD characterization techniques) and/or by possible particle sintering (as observed from the data derived from XPS). Bimetallic Catalysts Impregnated in One Step.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

Ni–Cu Bimetallic Catalytic System for Producing 5-Hydroxymethylfurfural-Derived Value-Added Biofuels

Viar

Requies

Agirre

et al. 2020

ACS Sustainable Chem. Eng.

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Biomass is the only renewable carbon source capable of replacing conventional production of chemicals and fuels derived from nonrenewable resources. The cellulose monomers derived from lignocellulosic biomass can be transformed into 5-hydroxymethylfurfural (HMF), which can be further converted into 2,5-dimethylfuran (DMF) and 2,5-dimethyltetrahydrofuran (DMTHF). These products can be used as substitutes for standard gasoline or as additives. This study has shown that by using Ni–Cu catalysts supported on ZrO2, DMF can be obtained with a yield of 70% after 25 h on stream. Experiments were carried out in a continuous fixed-bed reactor, and complete HMF conversion was achieved by the formation of Ni–Cu species. The importance of Ni active sites in the hydrogenation of DMF to obtain DMTHF was shown, observing how the progressive Ni oxidation phenomenon during the reaction favors DMF production to the detriment of DMTHF. Catalyst evolution was corroborated by different characterization techniques after carrying out several experiments with different durations.

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“…Note that without solvent, a moderate activity (86% yield) is observed but higher than with water (44%) ( Table 2, Entries 1 and 2). It is an exciting outcome considering the environment, since pollutants elimination from an unselective preparation method is always desirable to subsequent treatment 21 .…”

Section: Effect Of Solventmentioning

confidence: 99%

“…We believe that the solvent effect could be explained by the fact that the solubility of dioxygen differs from one solvent to another. Probably, when the mole fraction of dioxygen increases, the catalytic activity increases 21,22 .…”

Section: Scheme 1 α-Positions Of Ethers Can Be Easily Attacked By Momentioning

confidence: 99%

Selective Catalytic Oxidation of Aldehydes by a Molybdenum System

Amrani

Atlamsani

2020

Mediterr.J.Chem.,

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The oxidation of aldehydes with molecular oxygen was investigated in the presence of MoO2(acac)2(Bis(acetylacetonato)dioxomolybdenum(VI)), and under mild condition (temperature and pressure). In the oxidation reaction system, the effect of the catalyst has been evaluated. In addition, the factor of solvents was deeply discussed. The process is particularly selective for linear and aromatic aldehydes. Finally, the use of environmentally-friendly oxidation system, including mild conditions and inexpensive oxidant, can make this process very attractive in the fine chemical synthesis.

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K-10 montmorillonite: An efficient and reusable catalyst for the aerobic CC bond cleavage of α-substituted ketones

Cited by 19 publications

References 41 publications

Photocatalytic degradation of ciprofloxacin by synthesized TiO2 nanoparticles on montmorillonite: Effect of operation parameters and artificial neural network modeling

Photocatalytic degradation of ciprofloxacin by synthesized TiO2 nanoparticles on montmorillonite: Effect of operation parameters and artificial neural network modeling

Ni–Cu Bimetallic Catalytic System for Producing 5-Hydroxymethylfurfural-Derived Value-Added Biofuels

Selective Catalytic Oxidation of Aldehydes by a Molybdenum System

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