02041nas a2200157   4500008004100000022001400041245007300055210006900128260011000197300001400307490000700321520139300328100002501721700003001746856010701776       2008                        eng d  a0959-942800aShape-dependent electrocatalytic activity of platinum nanostructures0 aShapedependent electrocatalytic activity of platinum nanostructu  aTHOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLANDbROYAL SOC CHEMISTRYcSEP  a5858-58700 v183 a<p>Since many metallic nanostructures with different shapes exhibit unique chemical and physical properties, a systematic attempt to synthesize these shape-controlled structures for property-shape correlation remains an important challenge in contemporary materials chemistry. Main difficulties like poor shape selectivity, low yield, presence of impurity phases, difficulty of separation, etc., are exacerbated since metallic structures have high surface energies which favour lower surface areas, and consequently many synthesis strategies, including the use of hard and soft templates and external nucleating agents, are being employed along with theoretical guidelines from density functional calculations on simpler systems. One of the important application areas where these structures have gained profound attention is in electrocatalysis, where the kinetics of many structure-sensitive reactions of technological relevance have been experimentally observed to show drastic changes with shape especially in the nanosize domain, at least in one dimension. Considering their scientific and technological importance, this feature article provides an overview of the recent progress on the shape-controlled synthesis of metallic nanostructures with special emphasis on platinum, and their crucial role in the electrocatalysis of anodic reactions for polymer electrolyte fuel cells.</p>1 aSubhramannia, Mahima1 aPillai, Vijayamohanan, K.  uhttps://library.ncl.res.in/content/shape-dependent-electrocatalytic-activity-platinum-nanostructures-0