01597nas a2200193   4500008004100000022001400041245011300055210006900168260000900237300001400246490000800260520089100268100001701159700003001176700002101206700002901227700001801256856012901274       2017                        eng d  a1932-744700aConvenient route for Au@Ti-SiO2 nanocatalyst synthesis and its application for room temperature CO oxidation0 aConvenient route for AuTiSiO2 nanocatalyst synthesis and its app  cMAR   a4946-49570 v1213 a<p>Small gold nanoparticles.of size less than 5 nm encapsulated inside titanium modified silica shell have been reported. Here, a modified sol-gel method, which is a one-step process, produces Au@Ti-SiO2 nanocatalyst with a good control of titanium loading. With a titanium loading of 0.9 and 2.2 wt % in silica, unprecedented low temperature activity (full conversion) is observed for this catalyst for CO oxidation reaction compared to Au@SiO2 catalyst. A combination of optimum sized gold nanoparticles with a large amount of oxygen vacancies created due to Ti incorporation in silica matrix is considered to be the reason for this enhanced catalytic activity. The size of.gold nanoparticles is maintained even after high temperature pretreatments, which show the benefit of encapsulation. The effect of the various pretreatments on the catalytic activity has also been reported.</p>1 aSoni, Yogita1 aKumar, Anumol, Erumpukuth1 aNayak, Chandrani1 aDeepak, Francis, Leonard1 aVinod, C., P.  uhttps://library.ncl.res.in/content/convenient-route-auti-sio2-nanocatalyst-synthesis-and-its-application-room-temperature-co