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New Findings from Council of Scientific and Industrial Research (CSIR) Describe Advances in Chalcogens (Selective Oxidation of Propylene to Propylene...

August 19, 2014



New Findings from Council of Scientific and Industrial Research (CSIR) Describe Advances in Chalcogens (Selective Oxidation of Propylene to Propylene Oxide over Silver-Supported Tungsten Oxide Nanostructure with Molecular Oxygen)

By a News Reporter-Staff News Editor at Life Science Weekly -- Fresh data on Chalcogens are presented in a new report. According to news reporting originating in Uttar Pradesh, India, by NewsRx journalists, research stated, "Propylene oxide (PO) is a versatile chemical intermediate, and by volume it is among the top SO chemicals produced in the world. The catalytic conversion of propylene to PO by molecular oxygen with minimum waste production is of high significance from an academic as well as an industrial point of view."

The news reporters obtained a quote from the research from the Council of Scientific and Industrial Research (CSIR), "We have developed a new synthesis strategy to prepare 2-5 nm metallic silver nanoparticles (AgNPs) supported on tungsten oxide (WO3) nanorods with diameters between 30 and 40 nm, in the presence of cationic surfactant (cetyltrimethylammonium bromide: CTAB), capping agent (polyvinylpyrrolidone: PVP), and hydrazine. The synergy between the surface AgNPs and WO3 nanorods facilitates the dissociation of molecular oxygen on the metallic Ag surface to produce silver oxide, which then transfers its oxygen to the propylene to form PO selectively."

According to the news reporters, the research concluded: "The catalyst exhibits a PO production rate of 6.1 X 10(-2) mol gcat(-1) h(-1), which is almost comparable with the industrial ethylene-to-ethylene oxide production rate."

For more information on this research see: Selective Oxidation of Propylene to Propylene Oxide over Silver-Supported Tungsten Oxide Nanostructure with Molecular Oxygen. ACS Catalysis, 2014;4(7):2169-2174. ACS Catalysis can be contacted at: Amer Chemical Soc, 1155 16TH St, NW, Washington, DC 20036, USA. (American Chemical Society - www.acs.org; ACS Catalysis - www.pubs.acs.org/journal/accacs)

Our news correspondents report that additional information may be obtained by contacting S. Ghosh, Indian Inst Petr, CSIR, Catalyt Convers & Proc Div, Dehra Dun 248005, Uttar Pradesh, India. Additional authors for this research include S.S. Acharyya, R. Tiwari, B. Sarkar, R.K. Singha, C. Pendem, T. Sasaki and R. Bal (see also Chalcogens).

Keywords for this news article include: Asia, India, Nanorod, Tungsten, Chalcogens, Uttar Pradesh, Nanotechnology, Transition Elements, Emerging Technologies

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC


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Source: Life Science Weekly


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