In situ high temperature TEM observation of interaction between multi-walled carbon nanotube and in situ deposited gold nano-particles |
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Authors: | Kamino Takeo Yaguchi Toshie Konno Mitsuru Hashimoto Takahito |
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Affiliation: | Hitachi High-Technologies Corporation, Hitachinaka, Ibaraki, Japan. kamino-takeo@naka.hitachi-hitec.com |
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Abstract: | Interaction between multi-walled carbon nanotubes (MWNTs) and deposited gold nano-particles has been dynamically observed in a 200 kV transmission electron microscope (TEM) using a specimen heating holder. Gold particles with diameters of several tens of microns were mixed with MWNTs to mount on the heating element of a specimen heating holder. The gold particles were instantaneously heated to 1373 K to deposit gold nano-particles on the MWNTs from a very short distance. The MWNTs were then heated to 1073 K to observe interaction between the deposited gold nano-particles and MWNTs. Some gold nano-particles drilled through the wall of the MWNT and entered the capillary space of the MWNTs. To characterize the mechanism of the transition of the gold nano-particles into the capillary space of the MWNT, high resolution TEM observation of the deformed wall of MWNT was also carried out. |
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