01293nas a2200169   4500008004100000022001400041245015000055210006900205260011000274300001400384490000600398520053700404100001700941700002200958700001800980856012500998       2014                        eng d  a2040-336400aStructure sensitive chemical reactivity by palladium concave nanocubes and nanoflowers synthesised by a seed mediated procedure in aqueous medium0 aStructure sensitive chemical reactivity by palladium concave nan  aTHOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLANDbROYAL SOC CHEMISTRYcJUN  a7496-75020 v63 a<p>Palladium nanocubes and their transformation to concave nanocubes and nanoflowers are realised by a seed mediated procedure in aqueous medium and at room temperature using cationic surfactants. The concave nanocubes and nanoflowers were found to be enclosed by high index facets. The under coordinated atoms present on the high index facets make these nanostructures chemically more active towards Suzuki coupling and Heck coupling reactions compared to the conventional nanocubes and spherical nanoparticles of similar size.</p>1 aSreedhal, S.1 aSudheeshkumar, V.1 aVinod, C., P.  uhttps://library.ncl.res.in/content/structure-sensitive-chemical-reactivity-palladium-concave-nanocubes-and-nanoflowers-001404nas a2200229   4500008004100000022001400041245008300055210006900138260007300207300001200280490000800292520061500300653001700915653001200932653001900944653002200963653002000985100001801005700002201023700001801045856011101063       2015                        eng d  a0920-586100aOxidation catalysis by large trisoctahedral gold nanoparticles: Mind the step!0 aOxidation catalysis by large trisoctahedral gold nanoparticles M  aPO BOX 211, 1000 AE AMSTERDAM, NETHERLANDSbELSEVIER SCIENCE BVcAPR  a177-1830 v2443 a<p>To understand the origin of catalysis by gold and to probe the role of defects and interfaces, benchmark reactions namely CO oxidation and benzyl alcohol oxidation were carried out on supported trisoctahedral gold nanoparticles and on the inverse catalyst system. The sizes of these particles which are between 45 nm and 110 nm, are well beyond the quantum size regime and well above the optimum size range where gold is considered to be catalytically active. The periodic steps sites in contact with oxide support interface were able to promote the reaction. (C) 2014 Elsevier B.V. All rights reserved.</p>10aCO oxidation10aDefects10aGold catalysis10aInverse catalysta10aSteps and kinks1 aSreedhala, S.1 aSudheeshkumar, V.1 aVinod, C., P.  uhttps://library.ncl.res.in/content/oxidation-catalysis-large-trisoctahedral-gold-nanoparticles-mind-step-001584nas a2200217   4500008004100000022001400041245006300055210006200118260009500180300001200275490000800287520083200295653001701127653002201144653002101166653002601187100001801213700002201231700001801253856009501271       2016                        eng d  a0021-951700aCO oxidation on large high-index faceted Pd nanostructures0 aCO oxidation on large highindex faceted Pd nanostructures  a525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USAbACADEMIC PRESS INC ELSEVIER SCIENCEcMAY  a138-1440 v3373 a<p>The structure sensitivity of CO oxidation has been investigated on oxide-supported palladium nanoparticles of different morphologies. The reactivity of concave nanocubes and nanoflowers that expose {3 1 0} and {3 1 1} high-index facets showed a lower onset temperature for CO oxidation than Pd nanospheres of size around 6 nm. These concave nanocubes and nanoflowers were also found to catalyze the CO oxidation reaction more efficiently than simple cubes and spheres of similar size that exposed low-index facets. The enhanced activity of these nanoparticles compared with other morphologies are attributed to the presence of sites of under-coordination on the exposed high-index facets. The larger nanoparticles were also found to be more stable in the reaction environment. (C) 2016 Elsevier Inc. All rights reserved.</p>10aCO oxidation10aHigh-index facets10aPd nanoparticles10astructure sensitivity1 aSreedhala, S.1 aSudheeshkumar, V.1 aVinod, C., P.  uhttps://library.ncl.res.in/content/co-oxidation-large-high-index-faceted-pd-nanostructures