Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5370181 | Applied Surface Science | 2006 | 5 Pages |
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
Authors
Hideya Kawasaki, Go Sakai, Tsuyoshi Kijima,