Search Results - "Dummer, N."

Influence of Milling Media on the Physicochemicals and Catalytic Properties of Mechanochemical Treated Vanadium Phosphate Catalysts by Taufiq-Yap, Y. H, Goh, C. K, Hutchings, G. J, Dummer, N, Bartley, J. K

“…VOHPO₄·0.5H₂O synthesized via the alcohol reduction of VOPO₄·2H₂O was mechanochemical treated for 30 min in three different media, i.e. cyclohexane, ethanol…”
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Dependence of n-Butane Activation on Active Site of Vanadium Phosphate Catalysts by Taufiq-Yap, Y. H, Goh, C. K, Hutchings, G. J, Dummer, N, Bartley, J

“…The nature and the role of oxygen species and vanadium oxidation states on the activation of n-butane for selective oxidation to maleic anhydride were…”
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Effects of mechanochemical treatment to the vanadium phosphate catalysts derived from VOPO4·2H2O by TAUFIQ-YAP, Y. H, GOH, C. K, HUTCHINGS, G. J, DUMMER, N, BARTLEY, J. K

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Influence of Bi–Fe additive on properties of vanadium phosphate catalysts for n-butane oxidation to maleic anhydride by Goh, C.K., Taufiq-Yap, Y.H., Hutchings, G.J., Dummer, N., Bartley, J.

“…The physico-chemical and catalytic properties of three ways of modified catalysts were studied, i.e. (i) the addition of both Bi and Fe (nitrate form) during…”
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Synthesis of vanadium phosphate catalysts by hydrothermal method for selective oxidation of n-butane to maleic anhydride by TAUFIQ-YAP, Y. H, HASBI, A. R. Mohd, HUSSEIN, M. Z, HUTCHINGS, G. J, BARTLEY, J, DUMMER, N

“…Two vanadium phosphate catalysts (VPH1 and VPH2) prepared via hydrothermal method are described and discussed. Both catalysts exhibited only highly crystalline…”
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The Effect of Cr, Ni, Fe, and Mn Dopants on the Performance of Hydrothermal Synthesized Vanadium Phosphate Catalysts for n-Butane Oxidation by Taufiq-Yap, Y. H., Theam, K. L., Hutchings, G. J., Dummer, N., Bartley, J. K.

“…Vanadium phosphorus oxide (VPO) catalysts synthesized via hydrothermal method were introduced with some different dopants, Cr, Ni, Fe, and Mn during the…”
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Effect of tellurium promoter on vanadium phosphate catalyst for partial oxidation of n-butane by Taufiq-Yap, Y.H., Asrina, S. Nor, Hutchings, G.J., Dummer, N.F., Bartley, J.K.

“…Te-promoted （1%） vanadium phosphate catalyst （VPDTe） was prepared via VOPO4·2H2O by calcining its precursor VOHPO4·0.5H2O in a flow of n-butane/air.VPDTe…”
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Vanadium Phosphate Materials as Selective Oxidation Catalysts by Dummer, N.F., Bartley, J.K., Hutchings, G.J.

“…Vanadium phosphates have been established as selective hydrocarbon oxidation catalysts for more than 40 years. Their primary use commercially has been in the…”
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Effects of mechanochemical treatment to the vanadium phosphate catalysts derived from VOPO 4·2H 2O by Taufiq-Yap, Y.H., Goh, C.K., Hutchings, G.J., Dummer, N., Bartley, J.K.

“…Mechanochemically treated vanadium phosphate catalysts. ▪ Modification by using mechanochemical treatment of vanadium phosphate catalysts on the…”
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Inversion of enantioselectivity for the hydrogenation of ethyl pyruvate in the gas-phase over Pt/SiO2 modified with derivatives of hydroquinidine by DUMMER, Nicholas F, JENKINS, Robert, XIABAO LI, BAWAKED, Salem M, MCMORN, Paul, BURROWS, Andrew, KIELY, Christopher J, WELLS, Richard P. K, WILLOCK, David J, HUTCHINGS, Graham J

“…Ethyl pyruvate was hydrogenated as a gas-phase reactant over 2.5% Pt/SiO2 premodified with hydroquinidine 4-chlorobenzoate at two concentrations (0.85 and 8.5…”
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Enantioselective hydrogenation using cinchona-modified Pt/γ-Al2O3 catalysts: comparison of the reaction of ethyl pyruvate and buta-2,3-dione by XIABAO LI, DUMMER, Nicholas, JENKINS, Robert, WELLS, Richard P. K, WELLS, Peter B, WILLOCK, David J, TAYLOR, Stuart H, JOHNSTON, Peter, HUTCHINGS, Graham J

“…The enantioselective hydrogenation of buta-2,3-dione to 3-hydroxy-buta-2-one and ethyl pyruvate to ethyl lactate are compared using cinchona-modified…”
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Text Summaries or Concept Maps: Which Better Represent Reading Text Conceptualization? by Johnson, Tristan E, Pirnay-Dummer, Pablo N, Ifenthaler, Dirk, Medenhall, Anne, Karaman, Selçuk, Tenenbaum, Gershon

“…Capturing students' mental models has been proposed as a viable means to measure students' understanding and conceptualization of given learning materials…”
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