Article ID Journal Published Year Pages File Type
5370181 Applied Surface Science 2006 5 Pages PDF
Abstract

The shape transformation of platinum (Pt) nanosheets with a uniform thickness of as thin as 3.5 ± 1 nm supported on graphite was investigated by in situ atomic force microscopy (AFM). The AFM observations revealed the shape transformation and the coalescence in preferred directions for the Pt nanosheets at room temperature (25 °C), which is much lower than the melting point of bulk metallic platinum (1769 °C). The behavior may be attributed to the high surface energy for the edge parts of Pt nanosheets with the small curvature of the nanometer scale.

Related Topics
Physical Sciences and Engineering Chemistry Physical and Theoretical Chemistry
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