Ionic-liquid-like copolymer stabilized nanocatalysts in ionic liquids: II. Rhodium-catalyzed hydrogenation of arenes

Zhao, Chen; Wang, Han-Zhi; Yan, Ning; Xiao, Chaoxian; Mu, Xindong; Dyson, Paul J.; Kou, Yuan

doi:10.1016/j.jcat.2007.05.014

Cited by 92 publications

(53 citation statements)

References 39 publications

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“…Further studies showed that the reaction follows first order kinetics with respect to COD and is zero order with respect to H 2 gas. An example of arene reductions by Rh nanoparticles supported on an ionic liquid-like co-polymer was reported by Zhao et al [31] In this case most of the intermediate dienes were found to be soluble in [bmim] [BF 4 ] which was used as a solvent, hence hydrogenation did not stop at the diene and further hydrogenated products predominate. Dyson et al [32] have also performed reductions of benzene, exploiting solubility differences using K 2 PtCl 4 /[N-octyl-3-picolinium][AlCl 4 ].…”

Section: Fig 2 Monomolecular Mechanismmentioning

confidence: 92%

“…Rhodium nanoparticles were stabilised by an IL-like copolymer ( Figure 45) in [bmim] [BF 4 ] and demonstrated high activity for the hydrogenation of various arenes. [31] A record total turnover was obtained (20,000) for the hydrogenation of benzene using this system. Superior results were obtained when using the stabiliser in the IL with the nanoparticles.…”

Section: Rhodium Nanoparticlesmentioning

confidence: 99%

See 1 more Smart Citation

Hydrogenation in Ionic Liquids

Ghavre¹,

Morrissey²,

Gathergood³

2011

Ionic Liquids: Applications and Perspectives

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Section: Fig 2 Monomolecular Mechanismmentioning

confidence: 92%

Section: Rhodium Nanoparticlesmentioning

confidence: 99%

Hydrogenation in Ionic Liquids

Ghavre¹,

Morrissey²,

Gathergood³

2011

Ionic Liquids: Applications and Perspectives

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“…Figure 4 is a collection of the structures and abbreviations for the stabilizers that have been described in this article. Figure 4 for structures) [51]. The introduction of charged imidazolium moiety into the polymer chain makes the co-polymer compatible with ILs.…”

Section: Employment Of Additional Stabilizermentioning

confidence: 99%

Towards Rational Design of Nanoparticle Catalysis in Ionic Liquids

Zhang

Yan

2013

Catalysts

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This feature article introduces the strategies on the design of highly efficient nanoparticle (NP) catalytic systems in ionic liquids (ILs). The employment of functional ILs as the media for NP preparation and catalysis could prove advantageous in terms of enhancing both NP stability and catalytic activity. Hydroxyl group functionalized ILs, in particular, exhibited a remarkable promotion effect on a variety of reactions catalyzed by NPs, such as hydrogenation over Rh NPs, hydrodehalogenation over Pt NPs and Suzuki reaction over Pd NPs. In some cases, tailor-made stabilizer is used in addition to keep the NPs sufficiently stable. For example, a carboxylic group modified polyvinylpyrrolidone endows NPs three-fold stabilization, including steric, electrostatic and ligand stabilizations, which leads to excellent stability of the NPs. The catalytic activities of these NPs, on the other hand, are not compromised, as each of these stabilizations is not too strong. Following that, the article describes our recent work on the rational design of bimetallic NPs in ILs and the development of multifunctional systems involving NPs for a tandem reaction sequence that convert lignin-derived phenolic compounds into fuels.

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“…Stabilization with polyvinylpyrrolidone (PVP) is necessary to obtain stable mono-and bimetallic Pt/Au nanoparticles immobilized in [C 4 MIm + ][PF 6 -]. [97] Also, ionic liquid-like copolymers can be used to stabilize Rh [98] and Pt [99] nanoparticles, where [C 4 MIm + ][BF 4 -] itself can not stabilize the platinum nanoparticles sufficiently. [99] …”

Section: Stabilization By Ionic Liquidmentioning

confidence: 99%