Deposition of Gold Clusters on Porous Coordination Polymers by Solid Grinding and Their Catalytic Activity in Aerobic Oxidation of Alcohols

Ishida, Tamao; Nagaoka, Megumi Hamano; Akita, Tomoki; Haruta, Masatake

doi:10.1002/chem.200800980

Cited by 471 publications

(324 citation statements)

References 58 publications

Supporting

Mentioning

310

Contrasting

Unclassified

Order By: Relevance

“…It is suggested that the support may play a crucial role, either direct or indirect, in the determination of the activity of gold 2,60 . The influence of the support is also illustrated in the work of Ishida et al 61 in which large differences in alcohol conversions are observed for the Au@MOF-5, Au@Al-MIL-53 and Au@Cu 3 (BTC) 2 (entry 4 Table 2). Also in the work of Esken et al 21a (entry 5 Table 2), it was suggested that the Au nanoparticles may chemically interact with the functionalities on the organic linker.…”

Section: Oxidation Of Alcoholsmentioning

confidence: 75%

Metal-Organic Frameworks as Selective or Chiral Oxidation Catalysts

2014

View full text Add to dashboard Cite

Since the discovery of Metal Organic Frameworks (MOFs) in the early 1990, the amount of new structures has grown exponentially. A MOF typically consists of inorganic nodes that are connected by organic linkers to form crystalline, highly porous structures. MOFs have attracted a lot of attention lately, as the versatile design of such materials holds promises of interesting applications in various fields. In this review, we will focus on the use of MOFs as heterogeneous oxidation catalysts. MOFs are very promising candidates to replace homogeneous catalysts by sustainable and stable heterogeneous catalysts. The catalytic active function can be either the active metal sites of the MOF itself or can be introduced as an extra functionality in the linker, a dopant or a "ship-in-a-bottle" complex. As the pore size, pore shape and functionality of MOFs can be designed in numerous ways, shape selectivity and even chiral selectivity can be created. In this review, we will present an overview on the state of the art of the use of MOFs as a heterogeneous catalyst in liquid phase oxidation reactions.

show abstract

Section: Oxidation Of Alcoholsmentioning

confidence: 75%

Metal-Organic Frameworks as Selective or Chiral Oxidation Catalysts

2014

View full text Add to dashboard Cite

show abstract

“…Gold on PCPs were prepared by the solid grinding method (10). Support (300 mg) and Me 2 Au(acac) (10 mg, 2 wt% of Au loading) were ground in an agate mortar in air at room temperature for 20 min.…”

Section: Catalyst Preparationmentioning

confidence: 99%

“…Porous coordination polymers (PCPs) with highly ordered nanometer-sized porous structures have been attracting growing interests as supports for metal clusters smaller than 2 nm in diameter (7)(8)(9)(10)(11). It has been reported that Pd (7,8), Cu (7), Ru (9) clusters in the range of 1-3 nm could be deposited on or in PCPs by chemical vapor deposition (CVD) whereas Au clusters with diameters of smaller than 2 nm had been hardly obtained by CVD because of the weak interactions of Au with PCP frameworks (7).…”

Section: Introductionmentioning

confidence: 99%

“…It has been reported that Pd (7,8), Cu (7), Ru (9) clusters in the range of 1-3 nm could be deposited on or in PCPs by chemical vapor deposition (CVD) whereas Au clusters with diameters of smaller than 2 nm had been hardly obtained by CVD because of the weak interactions of Au with PCP frameworks (7). Recently, we have developed a new deposition technique that enables the deposition of Au as clusters on PCPs and have found that the supported Au clusters and Au NPs smaller than 5 nm are catalytically active for the aerobic oxidation of alcohols (10). However, the kinds of PCP support strongly affected the catalytic activity more significantly than the size of Au particles.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

One-potN-alkylation of primary amines to secondary amines by gold clusters supported on porous coordination polymers

et al. 2009

Self Cite

View full text Add to dashboard Cite

“…The incorporation of clusters on top of nanomaterials is a promising strategy for the development of new functionalities with fascinating potential for the development of novel applications in photonics, energy harvesting or catalysis. 39,40 RESULTS AND DISCUSSION Characterisation of the platelets Scanning electron microscopy (SEM) shows that the material is composed of platelet-like particles with a circular shape and diameters in the range of 0.5-2 μm (usually around 1 μm), which sometimes present a wrinkled or folded surface and conform to the topography of the substrate as a result of their high flexibility (Fig. 1a, b).…”

Section: Introductionmentioning

confidence: 99%

Synthesis of layered platelets by self-assembly of rhenium-based clusters directed by long-chain amines

et al. 2017

View full text Add to dashboard Cite

Self-assembly of nanomaterials by wet chemistry methods is a suitable approach for the preparation of engineered structures with novel functionalities. In this work, we study the ability of long-chain amines to direct the growth of a layered nanomaterial, using [Re x Se y Cl z ] clusters as building blocks. The amines link to the clusters as ligands during the synthesis, directing the self-assembly due to their amphiphilic properties, which produces a platelet-shaped 2D material with sizes up to several μm in diameter and thicknesses in the range of 60-80 nm. This is, to the best of our knowledge, the first report on a one-step mild chemistry method for the preparation of 2D structures composed of alternate layers of self-assembled amines and sub-nm clusters of a rhenium chalcogenide. Furthermore, these materials can be used as a suitable source of clusters which then, conveniently released by a simple acid/base reaction, have been successfully incorporated to the surface of graphene. The simple clusters deposition method developed here offers a promising route towards the preparation of hybrid clusters/2D materials with outstanding properties arising from quantum confinement effects combined with high surface areas and the enormous compositional variety of 2D materials and clusters. These hybrids are expected to play a key role in the development of active materials for applications ranging from highly efficient energy storage systems, more active catalysts and upper-sensitivity gas sensors.

show abstract

Deposition of Gold Clusters on Porous Coordination Polymers by Solid Grinding and Their Catalytic Activity in Aerobic Oxidation of Alcohols

Cited by 471 publications

References 58 publications

Metal-Organic Frameworks as Selective or Chiral Oxidation Catalysts

Metal-Organic Frameworks as Selective or Chiral Oxidation Catalysts

One-potN-alkylation of primary amines to secondary amines by gold clusters supported on porous coordination polymers

Synthesis of layered platelets by self-assembly of rhenium-based clusters directed by long-chain amines

Contact Info

Product

Resources

About