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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Bibliographic Details
Main Authors: Takeshi Hikata, Soichiro Okubo, Yugo Higashi, Teruaki Matsuba, Risa Utsunomiya, Sadahiro Tsurekawa, Katsuhisa Murakami, Jun-ichi Fujita
Format: Article
Language:English
Published: AIP Publishing LLC 2013-04-01
Series:AIP Advances
Online Access:http://link.aip.org/link/doi/10.1063/1.4802966
Description
Summary: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