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Well-aligned carbon nanotubes films were synthesized by a pyrolytic method with aluminum and silicon as substrates. The substrate was coated with a thin film of Fe(NO 3 ) 3 . This film was transformed by subsequent heating into Fe 2 O clusters with a diameter of a few nanometers. Nanotubes were synthesized from acetylene at a temperature between 630 o C and 750 ...
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