Immobilization of transition metal (Fe2+, Co2+, VO2+ or Cu2+) Schiff base complexes onto graphene oxide as efficient and recyclable catalysts for epoxidation of styrene

Su, Hailiang; Li, Zhifang; Huo, Qisheng; Guan, Jingqi; Kan, Qiubin

doi:10.1039/c3ra47732k

Cited by 107 publications

(63 citation statements)

References 43 publications

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“…[VO(acac) 2 ] was thus immobilized onto CMK-3 [346] and GO [374] through a Schiff condensation between the aminosilane and the carbonyl group of the acac ligand (Table 17, (Table 17, entries 3-4) [376].…”

Section: ) 3 ][Bf 4 ] (mentioning

confidence: 99%

Coordination chemistry on carbon surfaces

Axet¹,

Dechy‐Cabaret²,

Durand³

et al. 2016

Coordination Chemistry Reviews

110

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Section: ) 3 ][Bf 4 ] (mentioning

confidence: 99%

Coordination chemistry on carbon surfaces

Axet¹,

Dechy‐Cabaret²,

Durand³

et al. 2016

Coordination Chemistry Reviews

110

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“…The interlayer distances of primary graphite and GO were 0.41 and 0.85 nm, respectively. The increased distance in GO is due to the existence of functional groups on the GO nanosheets . As can be seen in Figure c, thiol‐ene click reaction with Vinyl‐MNPs and incorporation of PW anions decreased the intensity of distinctive peak of GO.…”

Section: Resultsmentioning

confidence: 82%

Heterogenized peroxopolyoxotungstate catalyst on the surface of clicked magnetite‐graphene oxide nanocomposite: Magnetically recoverable epoxidation catalyst

Masteri‐Farahani

Modarres

2017

Applied Organom Chemis

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A new heterogeneous catalyst for the epoxidation of olefins was prepared by immobilization of peroxophosphotungstate anions on the surface of clicked magnetite‐graphene oxide as magnetically recoverable support. To prepare the heterogeneous catalyst, the clicked magnetite‐graphene oxide support was prepared by thiolene click reaction of thiol functionalized graphene oxide with vinyl modified magnetite nanoparticles. The tailored support was then modified with aminopropyl groups followed by electrostatic interaction with peroxophosphotungstate anions to achieve the desired heterogeneous catalyst. Characterization of the catalyst was performed by various physicochemical methods which confirmed the successful immobilization of peroxopolyoxotungstate species on the surface of clicked magnetite‐graphene oxide. Catalytic activity of the catalyst revealed its high catalytic activity and selectivity in the epoxidation of various olefins in the presence of H2O2 as green oxidant. This heterogeneous catalyst can be magnetically reused several times without significant loss of activity and selectivity.

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“…Specifically, GO is reacted with chloro‐ thiol‐ or aminopropyltrialkoxysilane to introduce a functional group that subsequently establishes a covalent C–N, C–S, C–O derivative (Scheme ). The second step is the covalent anchoring of the metal complex or organic moiety on GO modified with alkoxysilane.…”

Section: Covalent Functionalization Strategiesmentioning

confidence: 99%

Covalently Modified Graphenes in Catalysis, Electrocatalysis and Photoresponsive Materials

Navalón

Herance

Álvaro

et al. 2017

Chemistry A European J

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The ideal graphene is a one-atom thick single layer of carbon atoms having sp hybridation in hexagonal arrangement. Due to their large surface area and good dispersability in common solvents, graphenes are suitable platforms to anchor covalently units. The appended unit can introduce additional functionality to graphene. Although the field of covalently modified graphene is still starting compared to the development of other carbon nanoforms, there is already many examples describing the use of modified graphenes as recoverable photo-, electrocatalysts as well as in non-linear optics and to improve mechanical resistance and solubility of graphenes. In this Review, the state of the art of covalently modified graphenes for these applications is reviewed. After some general sections describing properties and characterization techniques of graphenes relevant to their use as supports and those general reactions and starting substrates to obtain the modified graphene conjugates, the main body of the review describes the preparation and properties of covalently modified graphene depending on their use as catalyst, photocatalyst, photoresponsive material, non-linear optics, electrocatalyst and other uses. The last section of the review summarizes the main achievements of the field and what should be according to our view the future developments.

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Immobilization of transition metal (Fe2+, Co2+, VO2+ or Cu2+) Schiff base complexes onto graphene oxide as efficient and recyclable catalysts for epoxidation of styrene

Cited by 107 publications

References 43 publications

Coordination chemistry on carbon surfaces

Coordination chemistry on carbon surfaces

Heterogenized peroxopolyoxotungstate catalyst on the surface of clicked magnetite‐graphene oxide nanocomposite: Magnetically recoverable epoxidation catalyst

Covalently Modified Graphenes in Catalysis, Electrocatalysis and Photoresponsive Materials

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