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Researchers from University of Ferhat Abbas Describe Findings in Applied Catalysis Research

June 13, 2014



By a News Reporter-Staff News Editor at Science Letter -- Research findings on Applied Catalysis Research are discussed in a new report. According to news reporting originating in Setif, Algeria, by NewsRx journalists, research stated, "A series of catalysts containing Au supported on Ni-based hydrotalcites (HT) Ni-Mg-Al varying in Ni content, but with a constant Mg2+/Al3+ ratio of 2, was prepared. Au nanoparticles were successfully formed and tested in the CO oxidation reaction."

The news reporters obtained a quote from the research from the University of Ferhat Abbas, "The effects of nickel content, HAuCI4 concentration, reduction pre-treatment and Au loadings were studied. The catalysts were characterized by XRD, BET, TPR, XPS and TEM. Au/Ni-Mg-Al hydrotalcites led to strongly enhanced activities for the CO reaction when compared with the bare support. Reduction of the catalyst increased the catalytic performance, contributing to an improved dispersion of gold as revealed by TEM. A significant difference in CO oxidation activity was observed which proved dependent on the HT precursor composition; the highest activity was found for the catalysts containing the lowest nickel content which correlated with the formation of Au particles of smaller size."

According to the news reporters, the research concluded: "The optimization of the preparation parameters (initial concentration of gold, gold loading, pre-treatment) allowed the successful deposition of 4 nm Au particles (Au/Ni0.06Mg0.94),very active for CO oxidation."

For more information on this research see: Characteristics of gold supported on nickel-containing hydrotalcite catalysts in CO oxidation. Applied Catalysis A-General, 2014;475():446-460. Applied Catalysis A-General can be contacted at: Elsevier Science Bv, PO Box 211, 1000 Ae Amsterdam, Netherlands (see also Applied Catalysis Research).

Our news correspondents report that additional information may be obtained by contacting L. Arab, Univ Ferhat Abbas, Fac Technol, Dept. of Genie Proc, LGPCLab Genie Proc Chim, Setif 19000, Algeria. Additional authors for this research include M. Boutahala, B. Djellouli, T. Dintzer and V. Pitchon.

Keywords for this news article include: Setif, Africa, Nickel, Algeria, Transition Elements, Applied Catalysis Research

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


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Source: Science Letter


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