雷登弗罗斯特效应
纳米尺度
材料科学
碳纳米管
纳米颗粒
透射电子显微镜
纳米技术
电子显微镜
化学物理
光学
热力学
传热
物理
核沸腾
传热系数
作者
Shota Ohba,Hideo Kohno
标识
DOI:10.7566/jpsj.91.123601
摘要
When heated in a transmission electron microscope at a large ramp rate, Au nanoparticles actively move on a flattened multi-walled carbon nanotube. The active motions were not observed when the temperature was raised gradually: Au nanoparticles simply shrank and disappeared while remaining at their initial positions. In addition, Au nanoparticles lived longer when heated at the large ramp rate. These observations suggest that the observed active motions of Au nanoparticles on the surface of the nanotubes during heating are activated via the Leidenfrost effect at the nanoscale.
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