- Shape Control of Platinum Nanoparticles Using a Metal Salt
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Seoung Yeul Kwak, Jin Ho Lee, Jin Woo Kim, Taek Kyun Jung, Young Do Kim
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J Korean Powder Metall Inst. 2012;19(6):393-397.
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DOI: https://doi.org/10.4150/KPMI.2012.19.6.393
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 Abstract
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- AgNO_3 has the characteristic is controlling the inhibition or promotion of particle growth by adsorbing onto specific facets of platinum nanoparticles. Therefore, in this study, AgNO_3 was added to control the shape of platinum nanoparticles during the liquid phase reduction process. Consequently, platinum cubes were synthesized when AgNO_3 of 1.1 mol% (with respect to the Pt concentration) was added into the solution. Platinum octahedrons were synthesized when 32 mol% (with respect to the Pt concentration) was added into the solution. These results demonstrate that the metal salt AgNO_3, effectively controlled the relative growth rates of each facet of Pt nano particles.
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