01274nas a2200181   4500008004100000245007400041210006900115260000800184300002700192490000600219520064600225100001800871700002000889700002700909700003000936700002000966856010600986       2017                        eng d00aFacile synthesis of Al2O3-Pt nanocomposite and its catalytic activity0 aFacile synthesis of Al2O3Pt nanocomposite and its catalytic acti  cNOV  aArticle Number: 1150020 v43 aPt nanoparticles were synthesized on gamma-alumina support in presence of oleic acid which was found to prevent clustering of Pt nanoparticles on the support. Various percentage of Pt loading on the alumina changed the catalytic activity for preferential oxidation of CO at relatively low temperature in H-2 rich stream. Pt nanoparticles when synthesized in absence of oleic acid, were all clustered and did not have any catalytic activity. The presence of oleic acid promoted stability preventing agglomeration of Pt nanoparticles. The catalyst thus prepared was characterized thoroughly and their catalytic activity was studied in details.1 aDas, Subhasis1 aBordoloi, Ankur1 aGhosalya, Manoj, Kumar1 aGopinath, Chinnakonda, S.1 aBala, Tanushree  uhttps://library.ncl.res.in/content/facile-synthesis-al2o3-pt-nanocomposite-and-its-catalytic-activity01448nas a2200181   4500008004100000245007700041210006900118260000800187300002700195490000600222520081200228100002201040700001801062700002701080700003001107700002001137856010901157       2017                        eng d00aFacile synthesis of ZnO-Ag nanocomposite and its photocatalytic activity0 aFacile synthesis of ZnOAg nanocomposite and its photocatalytic a  cMAY  aArticle Number: 0550110 v43 a<p>The evolution of photoactive hybrid materials (e.g. noble metal-semiconductor) has resulted in heterogeneous photocatalysis. We report a facile route for the synthesis of ZnO-Ag nanocomposites with varying percentage of loading of the noble metal, expecting a great boost in the photocatalytic behavior of ZnO. The as prepared material was thoroughly characterized by UV-Vis, FTIR, TEM, FESEM, XRD, XPS analyses. The photocatalytic activities of the nanocomposites have been assessed from the ability to degrade methylene blue dye in aqueous solution. The results suggest that incorporation of Ag nanoparticles on the surface of ZnO particles can enhance catalytic activity in comparison to pure ZnO particles under visible light by minimizing the recombination of photogenerated electron-hole pairs.</p>1 aSardar, Debasmita1 aMaity, Jayeta1 aGhosalya, Manoj, Kumar1 aGopinath, Chinnakonda, S.1 aBala, Tanushree  uhttps://library.ncl.res.in/content/facile-synthesis-zno-ag-nanocomposite-and-its-photocatalytic-activity