Zobrazeno 1 - 10 of 25 pro vyhledávání: '"Richard D. Oldroyd"'
1
Preparation, Characterisation and Performance of Encapsulated Copper-Ruthenium Bimetallic Catalysts Derived from Molecular Cluster Carbonyl Precursors
Autor: Dogan Ozkaya, Richard D. Oldroyd, Thomas Maschmeyer, Gopinathan Sankar, Robert G. Bell, Robert Raja, John Meurig Thomas, Brian F. G. Johnson, Douglas S. Shephard
Publikováno v: Chemistry - A European Journal. 4:1214-1224
High-performance, bimetallic nanoparticle catalysts (M1+M2) were obtained by gentle thermolysis of their precursor metal-cluster carbonylates physisorbed inside the mesoporous channels of silica (the hexagons in the figure). The Cu–Ru catalyst anch
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::92bbb03e033d884e0c8f9b1588a4df8d
https://doi.org/10.1002/(sici)1521-3765(19980710)4:7<1214::aid-chem1214>3.0.co
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2
Enhancing the Performance of a Supported Titanium Epoxidation Catalyst by Modifying the Active Center
Autor: Richard D. Oldroyd, John Meurig Thomas, Dogan Ozkaya, Gopinathan Sankar
Publikováno v: The Journal of Physical Chemistry B. 102:1849-1855
Significant effects on catalytic activity in the epoxidation of cyclohexene with alkyl hydroperoxides are observed when the surface of mesoporous silica (MCM-41) is modified with either Ge(IV) or Sn(IV) prior to the grafting of tetracoordinated Ti(IV
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d09db9031d6448cd58d4e499faffcc75
https://doi.org/10.1021/jp971645x
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3
Metallocene-derived, isolated MoVI active centres on mesoporous silica for the catalytic dehydrogenation of methanol
Autor: Richard D. Oldroyd, He´lène Pernot, Ian J. Shannon, Gopinathan Sankar, John Meurig Thomas, Jean-Patrick Balikdjian, Michel Che, Thomas Maschmeyer
Publikováno v: Journal of the Chemical Society, Faraday Transactions. 94:1495-1499
Isolated MoVI active sites have been grafted onto the inner surfaces of MCM-41 mesoporous silica via a molybdocene dichloride precursor, to generate a catalyst which has been tested for the oxidative dehydrogenation of methanol. Mo K-edge X-ray absor
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::366b6d474849bffb2e3055507511fae8
https://doi.org/10.1039/a800054i
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4
Creation, characterisation and performance of vanadyl active sites in microporous and mesoporous silica-based catalysts for the selective oxidation of hydrocarbons
Autor: John Meurig Thomas, Wilhelm Friedrich Maier, Matthias Hunnius, Richard D. Oldroyd, Gopinathan Sankar
Publikováno v: Journal of the Chemical Society, Faraday Transactions. 94:3177-3182
We here describe how to design vanadium-centred active sites at the inner surfaces of both well defined microporous and well defined mesoporous siliceous hosts. Each type of vanadia–silica catalyst has been extensively characterised (in regard to s
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b05b4c1b23c437572132a28ad293f9e2
https://doi.org/10.1039/a804429e
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8
[Untitled]
Autor: Andrew M. Waller, John Meurig Thomas, Thomas Maschmeyer, Ian J. Shannon, D. Madill, R.P. Townsend, Gopinathan Sankar, Richard D. Oldroyd, M. Sheehy
Publikováno v: Catalysis Letters. 44:23-27
A new experimental reaction cell which enables the recording of combined EXAFS/XRD data over a wide range of temperatures of a solid that catalyses liquid reactions in the liquid state has been designed and constructed. The cell is particularly suita
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::30c415db815402af928fb57245645c5e
https://doi.org/10.1023/a:1018956520929
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9
[Untitled]
Autor: Keith U. Ingold, John Meurig Thomas, Darren W. Snelgrove, P.A. MacFaul, Richard D. Oldroyd
Publikováno v: Catalysis Letters. 48:21-24
The epoxidation of cyclohexene in acetonitrile under argon at room temperature on a titanium(IV)-containing MCM41 silica catalyst is faster and gives a greater final yield of cyclohexene oxide when the oxygen atom donor is 2-methyl-1- phenyl-2-propyl
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3c96fd617ce7d4a6110d5fedc5084a4d
https://doi.org/10.1023/a:1019074920329
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