Venturello anion immobilized on the surface of porous activated carbon as heterogeneous catalyst for the epoxidation of olefins

Masteri‐Farahani, Majid; Alavijeh, Masoumeh Karimi; Hosseini, Mahdiyeh-Sadat

doi:10.1007/s11144-020-01764-1

Cited by 12 publications

(1 citation statement)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Therefore, the Venturello structure contains already active peroxo groups that can easily promote sulfur oxidation. In fact, the Venturello peroxotungstate, PW 4 , has been successfully used as a highly active catalyst in different oxidative reactions [15,[24][25][26][27][28][29]. However, most of these studies use the Venturello compound as a homogeneous catalyst, which is difficult to recover and reuse [30].…”

Section: Introductionmentioning

confidence: 99%

An Effective Hybrid Heterogeneous Catalyst to Desulfurize Diesel: Peroxotungstate@Metal–Organic Framework

et al. 2020

View full text Add to dashboard Cite

A peroxotungstate composite comprising the chromium terephthalate metal–organic framework MIL-101(Cr) and the Venturello peroxotungstate [PO4{WO(O2)2}4]3− (PW4) has been prepared by the impregnation method. The PW4@MIL-101(Cr) composite presents high catalytic efficiency for oxidative desulfurization of a multicomponent model diesel containing the most refractory sulfur compounds present in real fuels (2000 ppm of total S). The catalytic performance of this heterogeneous catalyst is similar to the corresponding homogeneous PW4 active center. Desulfurization efficiency of 99.7% was achieved after only 40 min at 70 °C using H2O2 as an oxidant and an ionic liquid as an extraction solvent ([BMIM]PF6, 2:1 model diesel/[BMIM]PF6). High recycling and reusing capacity was also found for PW4@MIL-101(Cr), maintaining its activity for consecutive oxidative desulfurization cycles. A comparison of the catalytic performance of this peroxotungstate composite with others previously reported tungstate@MIL-101(Cr) catalysts indicates that the presence of active oxygen atoms from the peroxo groups promotes a higher oxidative catalytic efficiency in a shorter reaction time.

show abstract

Section: Introductionmentioning

confidence: 99%

An Effective Hybrid Heterogeneous Catalyst to Desulfurize Diesel: Peroxotungstate@Metal–Organic Framework

et al. 2020

View full text Add to dashboard Cite

show abstract

Encapsulation of Molybdenum Schiff‐base Complex Inside the SBA‐16 Nanocages with ship‐in‐a–bottle Strategy for Selective Epoxidation of Alkenes

2021

View full text Add to dashboard Cite

A new heterogeneous catalyst with a unique design was successfully synthesized through a ship‐in‐a‐bottle strategy to incorporate a highly active molybdenum Schiff‐base complex within the nanocages of SBA‐16 for epoxidation reaction. For this aim, all the chemical precursors for preparation of this complex were mixed step by step in the presence of SBA‐16 and the entry of nanocages were finally tuned via silylation with long chain trimethoxyoctylsilane reagent in order to avoid the possible release of encapsulated complex. The final catalyst (named as PPh3‐Sal/Mo@SBA‐16) was characterized by FT‐IR and UV‐Vis spectroscopies, nitrogen adsorption‐desorption and X‐ray diffraction (XRD) analyses as well as scanning and transmission electron microscopies (SEM and TEM). All of these physicochemical techniques approved the incorporation of molybdenum Schiff‐base complex inside the SBA‐16 nanocages and maintenance of physical properties of SBA‐16 after encapsulation process. As predicted, epoxidation of some allylic alcohols and alkenes were proceeded selectively toward desired epoxides with high efficiency beyond 80 % over PPh3‐Sal/Mo@SBA‐16 catalyst. Eventually, the reusability experiment revealed the catalyst stability after five successive epoxidation reaction with only minor reduction of overall efficiency.

show abstract

Immediate epoxidation of cyclohexene at room temperature using mesoporous flower-like NiO nanoparticles

Abboud

2020

Reac Kinet Mech Cat

View full text Add to dashboard Cite

Venturello anion immobilized on the surface of porous activated carbon as heterogeneous catalyst for the epoxidation of olefins

Cited by 12 publications

References 33 publications

An Effective Hybrid Heterogeneous Catalyst to Desulfurize Diesel: Peroxotungstate@Metal–Organic Framework

An Effective Hybrid Heterogeneous Catalyst to Desulfurize Diesel: Peroxotungstate@Metal–Organic Framework

Encapsulation of Molybdenum Schiff‐base Complex Inside the SBA‐16 Nanocages with ship‐in‐a–bottle Strategy for Selective Epoxidation of Alkenes

Immediate epoxidation of cyclohexene at room temperature using mesoporous flower-like NiO nanoparticles

Contact Info

Product

Resources

About