Research Update: Nickel filling in nanofeatures using supercritical fluid and its application to fabricating a novel catalyst structure for continuous growth of nanocarbon fibers | Zendy

Mitsuhiro Watanabe | Zendy; Kazuma Osada | Zendy; Eiichi Kondoh | Zendy; Soichiro Okubo | Zendy; Takeshi Hikata | Zendy; Akira Nakayama | Zendy

Open Access

Research Update: Nickel filling in nanofeatures using supercritical fluid and its application to fabricating a novel catalyst structure for continuous growth of nanocarbon fibers

Author(s) -

Mitsuhiro Watanabe,

Kazuma Osada,

Eiichi Kondoh,

Soichiro Okubo,

Takeshi Hikata,

Akira Nakayama

Publication year - 2014

Publication title -

apl materials

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.571

H-Index - 60

ISSN - 2166-532X

DOI - 10.1063/1.4897962

Subject(s) - materials science , catalysis , supercritical fluid , carbon nanofiber , nanofiber , chemical engineering , membrane , nanotechnology , carbon fibers , nickel , composite material , carbon nanotube , metallurgy , organic chemistry , composite number , chemistry , biochemistry , engineering

A novel catalyst structure for continuous growth of nanocarbon fibers is proposed. In this structure, catalyst nanofibers are embedded in a membrane that separates the growth ambient into carbon-supplying and carbon-precipitating environments. The catalyst nanofibers pierce through the membrane so that carbon source gas is supplied only to one end of the catalyst fibers and nanocarbon fibers grow continuously at the other end. To realize this structure, self-supporting anodized alumina was used as a membrane, and its nano-through-holes were filled with catalyst Ni in supercritical CO2 fluid. Direct carbon growth from the Ni nanofibers was confirmed using this catalyst structure

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