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Published on Jan 18, 2011
In situ growth of Carbon nanotubes observed at high resolution in a transmission electron microscope. The decomposition of acetylene is operated at low partial pressure in a dedicated 'Environnemental Transmission Electron Microscope' at 500°C on Cobalt nano-particles supported on a mesoporous silica substrate. The first part of the video is accelerated about 3 times, while the second part at higher magnification is at the real growth speed. During the nanotube growth, graphitic lattice fringes within the 'walls' (0.33 nm spacing) are easily resolved during this in situ heating experiment.