Growth of bridging carbon nanofibers in cracks formed by heat-treating iron oxide thin sheets in acetylene gas

Growth of bridging carbon nanofibers in cracks formed by heat-treating iron oxide thin sheets in acetylene gas

We produced novel carbon nanofibers (CNFs) by oxidizing high-purity iron foil and then carburizing it in acetylene gas flow. This formed cracks in the heat-treated iron foil with CNFs bridging the two walls of each crack. The CNFs were drawn out from the walls as the crack opened during heat treatme...

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Veröffentlicht in:AIP advances 2013-04, Vol.3 (4), p.042127-042127
Hauptverfasser: Hikata, Takeshi, Okubo, Soichiro, Higashi, Yugo, Matsuba, Teruaki, Utsunomiya, Risa, Tsurekawa, Sadahiro, Murakami, Katsuhisa, Fujita, Jun-ichi
Format: Artikel
Sprache:eng
Schlagworte:
Bridging
Carbon fibers
Cracks
Foils
Heat treatment
Iron oxides
Nanostructure
Walls
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Beschreibung
Zusammenfassung:We produced novel carbon nanofibers (CNFs) by oxidizing high-purity iron foil and then carburizing it in acetylene gas flow. This formed cracks in the heat-treated iron foil with CNFs bridging the two walls of each crack. The CNFs were drawn out from the walls as the crack opened during heat treatment. This will be a new method to grow and arrange carbon nanotubes and nanosheets without using metal nanoparticles or template substrates.
ISSN:2158-3226
2158-3226
DOI:10.1063/1.4802966