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A method to grow multi-wall carbon nanotube bundles in a high yield (weighing over 15 times the catalyst) is developed and a plausible explanation for the formation and high yield of the bundles is suggested. The Co-Mo-Mg-O catalyst used in the experiment is prepared by a sol-gel technique, molybdenum being doped into the catalyst through oxidation and diffusion at 750 o C. Small changes to...
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