Effect of Solvent on Average Size and Size Distribution of Platinum Nanoparticles
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Synthesis process engineering to alter size of nanoparticles has been a subject of constant exploration. Effect of reaction solvent on nanoparticle size evolution in wet chemistry based techniques has however been scarcely explored. This report illustrates interesting dependence of average size and size distribution of Pt nanoparticles on synergistic variations in reaction solvent type, precursor-to-surfactant molar ratio and reaction mixture heating rate. It is illustrated that using a suitable combination of above reaction variables Pt nanoparticles with average sizes from 3 to 21 nm and with a variety of size distribution characteristics can be synthesized.
KeywordsNanoparticles Electron microscopy Solvent Platinum Heating rate Surfactant
Authors acknowledge the electron microscopy facilities in the Advanced Centre for Microscopy and Microanalysis, Indian Institute of Science, Bangalore. Funding received from the Nano-mission grant by Department of Science and Technology, Govt. of India is also acknowledged.
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