Zeolite Encapsulated Metal Complexes

Balkus, Kenneth J.; Gabrielov, Alexei G.

doi:10.1007/978-94-011-0119-6_6

Cited by 75 publications

(78 citation statements)

References 68 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…So far, moderately good catalysts have resulted in a few cases. Transport of reactants and products within the support, and space around the active site, are common limitations for "ship in a bottle" catalysts [86], which are more difficult to solve than for framework-substituted catalysts. Only quite low loadings can be tolerated, to ensure adequate mobility.…”

Section: Redox Metal Complexesmentioning

confidence: 99%

Cleaner industrial processes using hydrogen peroxide

Sanderson

2000

Pure and Applied Chemistry

158

View full text Add to dashboard Cite

Recent research progress in catalytic systems for potential use with hydrogen peroxide in industrial chemical synthesis is reviewed, with special focus on work published in the last five years. The main types of chemistry employed are critically appraised regarding their suitability for industrial exploitation. The most significant catalyst types are discussed in terms of the positive features identified to date, and the obstacles yet to be surmounted in order to become more widely adopted. It is believed that fully inorganic systems have more scope for commercialization than those containing organic ligands or supports, however robust. Critical targets are larger-pore analogs of titanium silicalite TS-1, more exploration of smectitebased materials, effective immobilization of activated metal peroxo systems, and improvements in design and manipulation of polyoxometallate compounds. Cooperation between branches of chemistry that have not traditionally worked closely together is advocated.

show abstract

Section: Redox Metal Complexesmentioning

confidence: 99%

Cleaner industrial processes using hydrogen peroxide

Sanderson

2000

Pure and Applied Chemistry

158

View full text Add to dashboard Cite

show abstract

“…Their high surface areas, accessible porosity, and tailorable surface functional groups have made them ideal for host-guest encapsulation of metal ions and radionuclides. Studies on the metal/radionuclide adsorption properties of these materials are governed mostly by siliceous frameworks [6][7][8][9][10][11][12], with only a handful at best by modified metal oxide matrices comprised of titanium, alumina, and zirconium [13][14][15]. Such hybrid mesoporous ion exchangers can be made by several routes including blending in situ polymerization and molecular self-assembly, with the latter being the most prominent synthesis route.…”

Section: Ion Exchange For Nuclear Applicationsmentioning

confidence: 99%

“…Of particular interest was the cracking of high molecular weight hydrocarbons. Other uses included (i) a separation tool for heavy metals and radionuclides, (ii) the encapsulation of complexes for drug delivery, and (iii) the introduction of nanometer-sized particles within zeolites for electronic and optical applications [12][13][14][15].…”

mentioning

confidence: 99%

Mesoporous Transition Metal Oxide Ceramics

Whittle

Majewski

2014

Handbook of Nanomaterials Properties

View full text Add to dashboard Cite

“…The significant reduction in surface area and pore volume as a result of encapsulation of complexes within the zeolite pores is due to the blocking of the pores by the formation of the metal complexes [19]. The decrease in surface area values suggests the formation of metal complexes inside the zeolite cages.…”

Section: Synthesis and Characterization Of Catalystsmentioning

confidence: 99%

Catalytic activity of supported solid catalysts for phenol hydroxylation

Nethravathi¹,

Reddy²,

Mahendra

2014

J Porous Mater

View full text Add to dashboard Cite

Cobalt(II), copper(II) and zinc(II) complexes of 2-phenylbenzimidazole (PhBzlH) encapsulated in the supercages of zeolite-Y and ZSM-5 have been synthesized and characterized by spectroscopic studies (IR, UV/visible, EPR), elemental analyses, thermal studies and X-ray diffraction patterns. The catalytic activity of encapsulated complexes was investigated for the hydroxylation of phenol using 30 % H 2 O 2 as an oxidant. Under optimized reaction conditions, the hydroxylation of phenol yielded catechol and hydroquinone as the major products. All catalysts show good selectivity for diphenol products. A maximum conversion of phenol was obtained with [Cu(PhBzlH)]-Y as the catalyst. The results showed that conversion of phenol varies in the order [ Zn(PhBzlH)]-ZSM-5 (41 %) after 6 h of reaction time. Test for the recyclability of the reaction was also carried out and the results indicate their recyclability.

show abstract

Zeolite Encapsulated Metal Complexes

Cited by 75 publications

References 68 publications

Cleaner industrial processes using hydrogen peroxide

Cleaner industrial processes using hydrogen peroxide

Mesoporous Transition Metal Oxide Ceramics

Catalytic activity of supported solid catalysts for phenol hydroxylation

Contact Info

Product

Resources

About