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are dehydrogenation to give α-methyl styrene over Lewis acid sites and dealkylation to give benzene, ethylbenzene and propene over Brønsted acid sites [ 10 ]. In this article, we report new solid acid catalysts prepared by incorporating tungsten oxide

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improve [ 18 ], [ 20 ]. According to the literature there is no research that examined the effect of using Tungsten oxide WO 3 /Syltherm 800 nanofluid as a heating fluid flow inside the receiver of PTC. So this article aimed at examining the ability of

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Nanopages
Authors: E. Horváth, P. L. Neumann, A. L. Tóth, É. Vázsonyi, A. A. Koós, Z. E. Horváth, P. Fürjes, C. Dücső, and L. P. Biró

The deposition of nanowires for interconnects in nanoelectronic devices werestudied morphologically by scanning electron microscopy (SEM), atomic force microscopy (AFM) and by in-situ resistance measurements. The deposition and basic characterization of nanometer size tungsten wires by gas injection (GIS) and focused ion beams (FIB) was carried out in-situ in a LEO 1540 XB workstation. The I(V) measurement showed that the deposited W wires have ohmic characteristic. The variation of the resistance during an ex-situ heating was linear with a low thermal coefficient (4% of the pure metallic W).

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Abstract  

Nano Ni–W catalysts with different tungsten contents prepared by mixing alkaline nickel carbonate with ammonium tungstate show high activity and good sulfur tolerance for hydrogenation of thiophene-containing ethylbenzene. The catalysts were characterized by XRD, TPR, SEM, Raman and BET. The results show that the activity of the catalysts for ethylbenzene hydrogenation is affected profoundly by W loading and the best result was obtained on catalyst with W/Ni ratio equal to 0.16. The increase of activity of the catalyst can be attributed to the interaction between Ni and W doped and the increase of the surface area of the catalyst.

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tungsten oxide. Sensors and Actuators B: Chemical, 76, 624–628. Chen Y.C. Study on the temperature effect, hysteresis and drift of pH-ISFET devices based on amorphous tungsten oxide

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samples depends on the type of tungsten precursor (WCl 6 > (NH 4 ) 6 H 2 W 12 O 40 > H 2 WO 4 ) [ 18 ]. Here we present the photocatalytic degradation of Malachite Green (MG) with composite thin films TiO 2 /WO 3 . Since 1933 [ 19 ], the MG dye

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Acta Alimentaria
Authors: M. Anke, M. Seifert, W. Arnhold, S. Anke, and U. Schäfer

Brill, W.J., Ela, S.W. & Breznak, J.A. (1987): Termite killing by molybdenum and tungsten compounds. Naturwiss. , 74 , 494–495. Breznak J.A. Termite killing by molybdenum

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Reaction Kinetics, Mechanisms and Catalysis
Authors: Kenichiro Inoue, Kiyomi Okabe, Megumu Inaba, Isao Takahara, and Kazuhisa Murata

established. However, there are few reports on a direct conversion of bio-ethanol into propylene. The authors [ 6 ] reported that lanthanum and tungsten modified H-ZSM-5 reduced aromatization and olefin hydrogenation and, as a result, the propylene

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Reaction Kinetics, Mechanisms and Catalysis
Authors: Susana Pinto-Castilla, Santiago Marrero, Yraida Díaz, Joaquín L. Brito, Pedro Silva, and Paulino Betancourt

, Boudart , M 1985 Compounds of molybdenum and tungsten with high specific surface area: II. Carbides . J Solid State Chem 59 : 348 – 356 10.1016/0022-4596(85)90302-0 . 13. Zhao , Z , Liu

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for reusing. So it is necessary to study the stability of the heteropolyanion on zirconia as well as the leaching of HPA from the support in order to reuse the catalyst. HPA can be quantitatively characterized by the heteropoly blue (Tungsten blue

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