By a News Reporter-Staff News Editor at Science Letter -- New research on Applied Catalysis Research is the subject of a report. According to news reporting originating from Nakorn Panom, Thailand, by NewsRx correspondents, research stated, "Monometallic Au/TiO2 and Pd/TiO2 and bimetallic Au-Pd/TiO2 nanoparticles were synthesized by flame spray pyrolysis (FSP) in a single step using palladium acetylacetonate, gold chloride trihydrate, and titanium butoxide as precursors dissolved in a xylene/acetonitrile mixture (70/30 vol%). For comparison purposes, bimetallic Au-Pd/TiO2 catalysts were also prepared by co-impregnation (IMP) and deposition-precipitation (DP) of Au and Pd on the FSP-derived TiO2."
Our news editors obtained a quote from the research from Silpakorn University, "Based on the characterization results from X-ray diffraction (XRD), transmission electron spectroscopy-energy dispersive X-ray spectroscopy (TEM-EDX), X-ray photoelectron spectroscopy (XPS), N-2 physisorption, and CO pulse chemisorption, Au-Pd alloy particles on the FSP-made AuPd/TiO2 were more uniform and smaller than those obtained by either DP or IMP methods. Both Au and Pd species (Au-Pd alloy particles) were presented on the surface of FSP-made catalysts. Smaller Pd/PdO particles with some pore blockages and formation of new pore structure of the TiO2 were seen on the catalysts prepared by DP and IMP. The rate of the liquid-phase hydrogenation of 1-heptyne depended on the Pd dispersion and the location of Pd particles."
According to the news editors, the research concluded: "However, the selectivity to 1-heptene was greatly modified by the presence of Au-Pd alloy."
For more information on this research see: Mono- and bi-metallic Au-Pd/TiO2 catalysts synthesized by one-step flame spray pyrolysis for liquid-phase hydrogenation of 1-heptyne. Applied Catalysis A-General, 2013;467():132-141. Applied Catalysis A-General can be contacted at: Elsevier Science Bv, PO Box 211, 1000 Ae Amsterdam, Netherlands (see also Applied Catalysis Research).
The news editors report that additional information may be obtained by contacting B. Pongthawornsakun, Silpakorn University, Fac Engn & Ind Technol, Dept. of Chem Engn, Nakhon Pathom 73000, Thailand. Additional authors for this research include S. Fujita, M. Arai, O. Mekasuwandumrong and J. Panpranot.
Keywords for this news article include: Asia, Thailand, Nakorn Panom, Applied Catalysis Research
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