Synergistic effect in the hydroxylation of phenol over CoNiAl ternary hydrotalcites

Rives, V.; Prieto, O.; Dubey, Amit; Srinivasan, Kannan

doi:10.1016/s0021-9517(03)00245-8

Cited by 91 publications

(29 citation statements)

References 25 publications

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“…The sharp band at 1388 cm À 1 is due to the antisymmetric mode of interlayer carbonate anions. The group of peaks in the region below 1200 cm À 1 are from the M À OH stretching and M À O À M' bending modes [16] wherein M and M' represent the metal elements such as Cu, Al and RE so on. From the XRD and IR spectra of samples, it can be concluded that microwave irradiation results in the formation of the copper-containing hydrotalcite-type materials (Cu-HTLcs) in a short crystallization time, and the doping of rare earth elements has no obvious influence on the formation of the hydrotalcite structure.…”

Section: Synthesis and Characterizationmentioning

confidence: 99%

Effect of Rare Earth Doping on the Catalytic Activity of Copper‐Containing Hydrotalcites in Phenol Hydroxylation

Chen¹,

Xu²,

Feng³

et al. 2005

Adv Synth Catal

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Section: Synthesis and Characterizationmentioning

confidence: 99%

Effect of Rare Earth Doping on the Catalytic Activity of Copper‐Containing Hydrotalcites in Phenol Hydroxylation

Chen¹,

Xu²,

Feng³

et al. 2005

Adv Synth Catal

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“…In addition, they find uses as auto-oxidation inhibitor, monomer polymerization inhibitor, oil anticoagulant, catalyst for ammonia, etc. [1][2][3]. The catalytic oxidation of phenol using hydrogen peroxide as an oxidant over catalyst ( Fig.…”

Section: Introductionmentioning

confidence: 99%

Determination of catalytic oxidation products of phenol by RP-HPLC

et al. 2011

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A reversed-phase high-performance liquid chromatography (RP-HPLC) with ultraviolet detection was established for the determination of phenol, catechol, hydroquinone, and p-benzoquinone in the reaction solution of catalytic oxidation of phenol using hydrogen peroxide as the oxidant and copper-doped FeSBA-15 zeolite as the catalyst. Separation was accomplished on a reversed-phase C 18 column, and the elution condition was optimized by changing the composition of the mobile phase. A good resolution of all of the relative components in the reaction solution was achieved when the mobile phase was methanol-water-1% acetic acid aqueous solution = 10:50:40 (v/v/v). The concentrations of phenol, catechol, hydroquinone, and p-benzoquinone were determined in 11 different reaction solutions by the external standard method. The proposed HPLC method was simple, accurate, reliable, and suitable for tracing the amount of target products during the catalytic oxidation reaction of phenol. The results can provide data support for evaluating the

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“…The sharp band at 1,457 cm -1 is due to the antisymmetric mode of interlayer carbonate anions. The group peaks in the region of below 1,000 cm -1 are from the M-OH stretching and M-O-M' bending modes, wherein M and M' represent the metal elements such as Sb, Al, Mg and so on [33]. These further prove that the synthesized Sb-HTL sample exhibits the structure of hydrotalcite-like compounds, indicating its preparation is successful.…”

Section: Characterization Of Sb-htlmentioning

confidence: 64%

The Catalytic Baeyer–Villiger Oxidation of Cyclohexanone to ε-Caprolactone over Stibium-containing Hydrotalcite

Chen

Peng

et al. 2009

Catal Lett

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A series of hydrotalcite-like compounds were prepared under microwave irradiation, which were used to catalyze the Baeyer-Villiger oxidation of cyclohexanone to e-caprolactone with hydrogen peroxide as oxidant. The results show that stibium-containing hydrotalcite (Sb-HTL) has good catalytic properties in the reaction. In the BaeyerVilliger oxidation of cyclohexanone to e-caprolactone with H 2 O 2 catalyzed by Sb-HTL, the effects of reaction time, reaction temperature, amount of catalyst and H 2 O 2 /cyclohexanone molar ratio are also investigated in details. It is shown the cyclohexanone conversion and e-caprolactone selectivity can reach 79.15 and 93.84%, respectively, under the optimum reaction conditions. Furthermore, Sb-HTL can be reused for six times without obvious loss of activity and selectivity. Therefore, Sb-HTL is reusable and would be a promising catalyst for the Baeyer-Villiger oxidation using green and cheap oxidants like hydrogen peroxide instead of peroxycarboxylic acids.

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Synergistic effect in the hydroxylation of phenol over CoNiAl ternary hydrotalcites

Cited by 91 publications

References 25 publications

Effect of Rare Earth Doping on the Catalytic Activity of Copper‐Containing Hydrotalcites in Phenol Hydroxylation

Effect of Rare Earth Doping on the Catalytic Activity of Copper‐Containing Hydrotalcites in Phenol Hydroxylation

Determination of catalytic oxidation products of phenol by RP-HPLC

The Catalytic Baeyer–Villiger Oxidation of Cyclohexanone to ε-Caprolactone over Stibium-containing Hydrotalcite

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