Designing a Heterogeneous Catalyst for the Production of Adipic Acid by Aerial Oxidation of Cyclohexane

Dugal, Markus; Sankar, Gopinathan; Raja, Robert; Thomas, John Meurig

doi:10.1002/1521-3773(20000703)39:13<2310::aid-anie2310>3.0.co;2-g

Cited by 190 publications

(144 citation statements)

References 11 publications

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“…Unfortunately, further investigations [10] revealed that unavoidable leaching of cobalt from the framework with the use of acetic acid contributed to the observed results. Thomas and co-workers [11,12] published interesting works using MeAPOs as effective catalysts for the selective cyclohexane oxidation. They found that the structure of molecular sieves influenced the metal valence in the calcined samples and caused different alkane oxidation activity.…”

Section: Introductioncontrasting

confidence: 63%

Characterization of metal-containing molecular sieves and their catalytic properties in the selective oxidation of cyclohexane

Tian

Liu

et al. 2004

Catalysis Today

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Section: Introductioncontrasting

confidence: 63%

Characterization of metal-containing molecular sieves and their catalytic properties in the selective oxidation of cyclohexane

Tian

Liu

et al. 2004

Catalysis Today

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“…[8,39] It has already been shown that the larger pore SAPO-5 species (AFI framework, 7.3 Å pore diameter) is catalytically inferior than the SAPO-34 species, [15] which was previously attributed to the difference in active sites. It is now clear that the precise framework architecture also plays a vital role, as the larger pores of SAPO-5 would not hinder diffusion to the same extent as SAPO-34, allowing a greater proportion of molecules to pass through the pores without reacting.…”

Section: Quasi-elastic Neutron Scattering Of Ethanol and Ethermentioning

confidence: 92%

Spectroscopic investigation into the design of solid–acid catalysts for the low temperature dehydration of ethanol

Potter

Aswegen

Gibson

et al. 2016

Phys. Chem. Chem. Phys.

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The increased demand for bulk hydrocarbons necessitates research into increasingly sustainable, energy-efficient catalytic processes. Owing to intricately designed structure-property correlations, SAPO-34 has become established as a promising material for the low temperature ethanol dehydration to produce ethylene. However, further optimization of this process requires a precise knowledge of the reaction mechanism at a molecular level. In order to achieve this a range of spectroscopic characterization techniques are required to probe both the interaction with the active site, and also the wider role of the framework. To this end we employ a combination of in situ infra-red and neutron scattering techniques to elucidate the influence of the surface ethoxy species in the activation of both diethyl ether and ethanol, towards the improved formation of ethylene at low temperatures. The combined conclusions of these studies is that the formation of ethylene is the rate determining step, which is of fundamental importance towards the development of this process and the introduction of bio-ethanol as a viable feedstock for ethylene production.

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“…To date, the lowest temperature for selective oxidation of the alkane C-H bond has been achieved by Thomas et al using transitional metal ions substituted molecular sieve catalysts at 100°C [11][12][13][14]. We therefore wished to investigate the activation of C-H bonds at temperatures below this, and in particular we have examined the use of supported gold catalysts and we have found that they can be effective at temperature as low as 70°C.…”

Section: Introductionmentioning

confidence: 99%

Selective conversion of cyclohexane to cyclohexanol and cyclohexanone using a gold catalyst under mild conditions

Landon

Enache

et al. 2005

Catal Lett

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The oxidation of cyclohexane to cyclohexanol and cyclohexanone are investigated using supported gold catalysts using mild conditions of temperature and pressure. These catalysts are found to show some limited activity at 70°C. However, the gold catalysts do not exhibit significantly different behaviour from supported Pt or Pd catalysts, and the selectivity observed is solely a function of conversion which in turn is a function of reaction time. It is clear that at very low conversions very high selectivities can be observed, but high selectivity under these mild reaction conditions cannot be maintained at higher conversions.

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Designing a Heterogeneous Catalyst for the Production of Adipic Acid by Aerial Oxidation of Cyclohexane

Cited by 190 publications

References 11 publications

Characterization of metal-containing molecular sieves and their catalytic properties in the selective oxidation of cyclohexane

Characterization of metal-containing molecular sieves and their catalytic properties in the selective oxidation of cyclohexane

Spectroscopic investigation into the design of solid–acid catalysts for the low temperature dehydration of ethanol

Selective conversion of cyclohexane to cyclohexanol and cyclohexanone using a gold catalyst under mild conditions

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