کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1792462 | 1023645 | 2011 | 7 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Synthesis and growth mechanism of gold nanoplates with novel shapes Synthesis and growth mechanism of gold nanoplates with novel shapes](/preview/png/1792462.png)
Well-defined Au nanoplates have been mass-synthesized through a chemical method at high and low temperatures. A time-saving method for the fabrication of hexagonal Au nanoplates has been developed by modifying polyol process with the presence of binary surfactants. In general methods, most Au nanoplates are in regular shapes of triangle and hexagon. While Au nanoplates with novel shapes, involving star-like and shield-like and other novel polygonal, are found with introduction of obvious temperature variation in the early crystal growth stage. Structural studies demonstrate that the obtained Au nanoplates are single-crystalline with (1 1 1) planes as two basal surfaces. The formation of these new and well-defined Au nanoplates can be understood from the growth of (1 1 1) plane along 〈1 1 0〉, 〈2 1 1〉 and other high-index directions. The ability to control the shape of Au nanoplates provides a great opportunity to systematically investigate the anisotropic growth of noble nanostructures.
Journal: Journal of Crystal Growth - Volume 321, Issue 1, 15 April 2011, Pages 124–130