01843nas a2200229   4500008004100000022001400041245008100055210006900136260007500205300001200280490000700292520101700299653001901316653001601335653002901351653003901380100001601419700002401435700002201459700001801481856011401499       2008                        eng d  a1571-101300aPeriodic mesoporous silicas and organosilicas: an overview towards catalysis0 aPeriodic mesoporous silicas and organosilicas an overview toward  a233 SPRING ST, NEW YORK, NY 10013 USAbSPRINGER/PLENUM PUBLISHERScDEC  a266-2820 v123 a<p>Micelle-templated mesoporous and organic-inorganic hybrid mesoporous materials are important in many fields of material research, especially for hosting catalysts in confined space. Among this class, the recent discovery of periodic mesoporous organosilicas (PMOs) represent an exciting new group of organic-inorganic nanocomposites targeted for a broad range of applications ranging from catalysis to microelectronics. Compared to the earlier generation of organic-inorganic hybrid mesoporous samples, obtained by the cocondensation reaction or by the grafting reaction, PMOs represent the right combination of organic and inorganic groups in the frame wall positions. This article reviews the current state of art in organic-inorganic hybrid mesoporous material research with special emphasis over periodic mesoporous organosilica materials having various redox centers (Ti, V, Cr) suitable for oxidation reactions as well as acidic sites (Al, -SO(3)H) for the organic transformation of bulky molecules.</p>10aAcid catalysis10aepoxidation10aMesoporous organosilicas10aOrganic-inorganic hybrid materials1 aShylesh, S.1 aSamuel, Prinson, P.1 aSisodiya, Sheetal1 aSingh, A., P.  uhttps://library.ncl.res.in/content/periodic-mesoporous-silicas-and-organosilicas-overview-towards-catalysis-002523nas a2200157   4500008004100000022001400041245014800055210006900203260011000272300001400382490000600396520179500402100001802197700001802215856013202233       2014                        eng d  a2044-475300aPhosphine free SBA-15-EDTA-Pd highly active recyclable catalyst: synthesis characterization and application for suzuki and sonogashira reaction0 aPhosphine free SBA15EDTAPd highly active recyclable catalyst syn  aTHOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLANDbROYAL SOC CHEMISTRYcAUG  a2978-29890 v43 a<p>Phosphine obstructed highly efficient and reusable SBA-15-EDTA-Pd(11) has been synthesized by anchoring a Pd-EDTA complex over the surface of organo-functionalized SBA-15. The physiochemical properties of the organo-functionalized catalyst were analyzed by elemental analysis, ICP-OES, XRD, N-2 sorption measurement isotherms, TGA and DTA, solid state C-13, Si-29 NMR spectroscopy FT-IR, XPS DRS UV-visible, SEM and TEM. The XRD and N-2 sorption analyses of the synthesized catalyst confirm that the ordered mesoporous channel structure was retained even after the multistep synthetic procedures. The (100), (110) and (200) reflections in SBA-15 provide a good structural stability, an the existence of a long range order and high pore wall thickness. The TGA-DTA results reveal that the thermal stability of the synthesized catalyst SBA-15-EDTA-Pd(11) was maintained at higher temperature. The organic moieties anchored over the surface of the SBA-15 and inside the pore wall were demonstrated by solid state C-13 NMR and FT-IR spectroscopy. Further, solid state Si-29 NMR spectroscopy provides information about the degree of functionalization of the surface silanol groups, of the SBA-15 with organic moieties. The electronic environment and oxidation state of the Pd metal in the SBA-15-EDTA-Pd(11) were monitored by XPS, and DRS UV-visible techniques. Moreover, the morphologies and topographic information of the synthesized catalyst were confirmed by SEM and TEM spectroscopy. The synthesized catalyst SBA-15-EDTA-Pd(11) was screened for the Suzuki and Sonogashira coupling reactions and shows a higher catalytic activity with higher TON (turn over number). The anchored solid catalyst can be recycled efficiently and reused five times, without a major loss in the reactivity.</p>1 aSharma, Priti1 aSingh, A., P.  uhttps://library.ncl.res.in/content/phosphine-free-sba-15-edta-pd-highly-active-recyclable-catalyst-synthesis-characterization-001197nas a2200193   4500008004100000022001400041245011300055210006900168260011000237300001200347490000600359520041800365100001900783700001700802700001800819700001800837700001800855856013000873       2016                        eng d  a2044-475300aPhenylacetylene hydrogenation on Au@Ni bimetallic core-shell nanoparticles synthesized under mild conditions0 aPhenylacetylene hydrogenation on AuNi bimetallic coreshell nanop  aTHOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLANDbROYAL SOC CHEMISTRYcJAN  a708-7120 v63 a<p>The synthesis of Au@Ni bimetallic core-shell nanoparticles through an energy efficient (lower temperature) route in oleylamine following a sequential reduction strategy is reported. The method is found to be useful for the synthesis of a very thin nickel shell (2 nm) over a gold core (15 nm). Synergistic effects are observed in catalyzing phenylacetylene hydrogenation under different solvent conditions.</p>1 aVysakh, A., B.1 aLazar, Anish1 aYadukiran, V.1 aSingh, A., P.1 aVinod, C., P.  uhttps://library.ncl.res.in/content/phenylacetylene-hydrogenation-auni-bimetallic-core-shell-nanoparticles-synthesized-under-0