Synthesis of Platinum Nanostructures Using Seeding Method

초록

We report Pt Hexapod nanoparticles with 6.4 similar to 9.7 nm in size by a polyol process in the presence of PVP as a stabilizer and additive its a kinetic controller. The structure and morphology of Pt nanostructures are confirmed by field-emission transmission electron microscopy. The morphological control over platinum nanoparticles is achieved by varying file amount of seeds in the polyol process, where platinum precursor is reduced by ethylene glycol to form Pt nanoparticle at 150 degrees C. As volume ratio between precursor-solution and seed-solution is increased from 10 to 50, the shape of Pt nanostructures is evolved from small seeds to tripod and hexapod. In addition, the size-controlled platinum hexapod nanostructures are successfully obtained using seeding method.

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