Oxidation/adsorption desulfurization of natural gas by bridged cyclodextrins dimer encapsulating polyoxometalate

Zou, Changjun; Zhao, Peng; Ge, Ju; Qin, Yibie; Luo, Pingya

doi:10.1016/j.fuel.2012.06.096

Cited by 56 publications

(37 citation statements)

References 25 publications

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“…The stability of POMs combined with their structural flexibility to incorporate various elements in their framework make them attractive catalysts. To date, POMs have proved to be among the best catalysts for ODS processes [6][7][8][20][21][22][23][24][25][31][32][33][34][35]. One of the main characteristics that limits the use of POMs as catalysts is their generally good solubility, which complicates their recovery and reuse.…”

Section: Introductionmentioning

confidence: 99%

Desulfurization of model diesel by extraction/oxidation using a zinc-substituted polyoxometalate as catalyst under homogeneous and heterogeneous (MIL-101(Cr) encapsulated) conditions

Julião

Gomes

Pillinger

et al. 2015

Fuel Processing Technology

129

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Section: Introductionmentioning

confidence: 99%

Desulfurization of model diesel by extraction/oxidation using a zinc-substituted polyoxometalate as catalyst under homogeneous and heterogeneous (MIL-101(Cr) encapsulated) conditions

Julião

Gomes

Pillinger

et al. 2015

Fuel Processing Technology

129

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“…An important distinction, though, is that the interior cavity of CDs is hydrophobic, while the exterior side is hydrophilic; due to this architectural conformation, they can incorporate organic and inorganic guest molecules of appropriate size. The main driving force in this case are dipole-dipole, electrostatic forces, hydrogen bonding and van der Waals interactions [46,47]. Very recently, Cadot et al reported the isolation of the 1:1, 1:2, 1:3 adducts, which are formed due to the attractive In a similar approach, cyclodextrins (CDs) are cyclic oligosacharides comprised of 6 to 8 glucose units exhibiting torus-shaped ring structure comparable to the CB moieties discussed above.…”

Section: Pom-based Clusters and Supramolecular Aggregatesmentioning

confidence: 96%

Section: Pom-based Clusters and Supramolecular Aggregatesmentioning

confidence: 99%

Self-Assembly in Polyoxometalate and Metal Coordination-Based Systems: Synthetic Approaches and Developments

et al. 2018

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Abstract:Utilizing new experimental approaches and gradual understanding of the underlying chemical processes has led to advances in the self-assembly of inorganic and metal-organic compounds at a very fast pace over the last decades. Exploitation of unveiled information originating from initial experimental observations has sparked the development of new families of compounds with unique structural characteristics and functionalities. The main source of inspiration for numerous research groups originated from the implementation of the design element along with the discovery of new chemical components which can self-assemble into complex structures with wide range of sizes, topologies and functionalities. Not only do self-assembled inorganic and metal-organic chemical systems belong to families of compounds with configurable structures, but also have a vast array of physical properties which reflect the chemical information stored in the various "modular" molecular subunits. The purpose of this short review article is not the exhaustive discussion of the broad field of inorganic and metal-organic chemical systems, but the discussion of some representative examples from each category which demonstrate the implementation of new synthetic approaches and design principles.

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“…[29][30][31] Cyclodextrins known as a typical kind of host compounds in molecular recognition, owing to the coexistence of hydrophobic cavity and hydrophilic surface in them, have showed good performance and already been widely used in drug delivery, 32,33 separation, 34,35 catalysis, 36 as well as desulfurization. [37][38][39] However, cyclodextrins have rather small binding constants with substrates, 40 and the binding abilities for them couldn't be improved effectively by functionalization and modication, 41 limitating the application of them in molecular recognition. Fortunately, these problems have been solved by the bridged cyclodextrin in some degree.…”

Section: -8mentioning

confidence: 99%

Molecular recognition with cyclodextrin polymer: a novel method for removing sulfides efficiently

Duan

Chen

et al. 2017

RSC Adv.

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A series of cyclodextrin polymers (CDPs) were synthesized and they were used for removing different sulfides by molecular recognition. Different CDPs showed a higher desulfurization efficiency for sulfides with an aromatic ring structure than those with an aliphatic chain structure. For different cyclodextrin polymers, b-CDP has a more suitable cavity size for removing DBT. Moreover, it has a good synergetic effect of adjacent cyclodextrin cavities and good electronic interactions with DBT.For these reasons, b-CDP showed the best desulfurization performance, in particular it has good performance for deep desulfurization by forming inclusion complexes and excellent selectivity for removing DBT. Meanwhile, the b-CDP showed good regeneration performance. Various characterization measurements were used to characterize the b-CDP before and after desulfurization of DBT, the results of which showed that it had advantages of wide application temperature range and good structure stability before and after desulfurization. Finally, a molecular recognition mechanism for removing sulfides efficiently was proposed.

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Oxidation/adsorption desulfurization of natural gas by bridged cyclodextrins dimer encapsulating polyoxometalate

Cited by 56 publications

References 25 publications

Desulfurization of model diesel by extraction/oxidation using a zinc-substituted polyoxometalate as catalyst under homogeneous and heterogeneous (MIL-101(Cr) encapsulated) conditions

Desulfurization of model diesel by extraction/oxidation using a zinc-substituted polyoxometalate as catalyst under homogeneous and heterogeneous (MIL-101(Cr) encapsulated) conditions

Self-Assembly in Polyoxometalate and Metal Coordination-Based Systems: Synthetic Approaches and Developments

Molecular recognition with cyclodextrin polymer: a novel method for removing sulfides efficiently

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