caa a22 4500 463253000 CHVBK 20180405153346.0 cr unu---uuuuu 170326e20070601xx s 000 0 eng 10.1007/s10562-007-9119-4 doi (NATIONALLICENCE)springer-10.1007/s10562-007-9119-4 MgO-supported cluster catalysts with Pt-Ru interactions prepared from Pt3Ru6(CO)21(μ3-H)(μ-H)3 [Elektronische Daten] [Saowapa Chotisuwan, Jatuporn Wittayakun, Rodrigo Lobo-Lapidus, Bruce Gates] Bimetallic MgO-supported catalysts were prepared by adsorption of Pt3Ru6(CO)21(μ3-H)(μ-H)3 on porous MgO. Characterization of the supported clusters by infrared (IR) spectroscopy showed that the adsorbed species were still in the form of metal carbonyls. The supported clusters were decarbonylated by treatment in flowing helium at 300°C, as shown by IR and extended X-ray absorption fine structure (EXAFS) data, and the resulting supported PtRu clusters were shown by EXAFS spectroscopy to have metal frames that retained Pt-Ru bonds but were slightly restructured relative to those of the precursor; the average cluster size was almost unchanged as a result of the decarbonylation. These are among the smallest reported bimetallic clusters of group-8 metals. The decarbonylated sample catalyzed ethylene hydrogenation with an activity similar to that reported previously for γ-Al2O3-supported clusters prepared in nearly the same way and having nearly the same structure. Both samples were also active for n-butane hydrogenolysis, with the MgO-supported catalyst being more active than the γ-Al2O3-supported catalyst. Springer Science+Business Media, LLC, 2007 bimetallic catalyst nationallicence PtRu clusters nationallicence magnesia nationallicence MgO nationallicence ethylene hydrogenation nationallicence n -butane hydrogenolysis nationallicence EXAFS spectroscopy nationallicence Chotisuwan Saowapa Department of Chemical Engineering and Materials Science, University of California, Davis, CA, USA aut Wittayakun Jatuporn School of Chemistry, Suranaree University of Technology, Nakhon Ratchasima, Thailand aut Lobo-Lapidus Rodrigo Department of Chemical Engineering and Materials Science, University of California, Davis, CA, USA aut Gates Bruce Department of Chemical Engineering and Materials Science, University of California, Davis, CA, USA aut Catalysis Letters Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 115/3-4(2007-06-01), 99-107 1011-372X 115:3-4<99 2007 115 10562 https://doi.org/10.1007/s10562-007-9119-4 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10562-007-9119-4 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Chotisuwan Saowapa Department of Chemical Engineering and Materials Science, University of California, Davis, CA, USA aut NATIONALLICENCE 700 1- Wittayakun Jatuporn School of Chemistry, Suranaree University of Technology, Nakhon Ratchasima, Thailand aut NATIONALLICENCE 700 1- Lobo-Lapidus Rodrigo Department of Chemical Engineering and Materials Science, University of California, Davis, CA, USA aut NATIONALLICENCE 700 1- Gates Bruce Department of Chemical Engineering and Materials Science, University of California, Davis, CA, USA aut NATIONALLICENCE 773 0- Catalysis Letters Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 115/3-4(2007-06-01), 99-107 1011-372X 115:3-4<99 2007 115 10562 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer