Chemically driven microstructure evolution in cobalt-fullerene mixed system

V. Lavrentiev; H. Naramoto; H. Abe; S. Yamamoto; K. Narumi; S. Sakai

doi:10.1081/FST-120027216

Chemically driven microstructure evolution in cobalt-fullerene mixed system

V. Lavrentiev, H. Naramoto, H. Abe, S. Yamamoto, K. Narumi, S. Sakai

Materials Design Division

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

We report on the formation of Co-C₆₀ nano-composite prepared by simultaneous deposition of cobalt and C₆₀ fullerene on sapphire or NaCl at room temperature. The composite includes fcc-Co single-crystals with size of order 10 nm separated by C₆₀-based matrix. Detailed characterization of the composite by electron diffraction and Raman spectrometry revealed the existence of small amount of diamond and cobalt carbides (orthorhombic Co₂C and Co₃C) in the composite matrix. According to electron diffraction analysis diamond nucleates epitaxialy on facets of fcc-Co crystals. The proposed model shows the role of chemical interaction in Co-C₆₀ mixture in the nano-composite structure formation.

Original language	English
Pages (from-to)	519-528
Number of pages	10
Journal	Fullerenes Nanotubes and Carbon Nanostructures
Volume	12
Issue number	1-2
DOIs	https://doi.org/10.1081/FST-120027216
Publication status	Published - 2005 Jan 2

Keywords

Co-C nano-composite
Cobalt-fullerene mixed system
Orth-CoC and Orth-CoC
Transmission electron microscopy

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
Materials Science(all)
Physical and Theoretical Chemistry
Organic Chemistry

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10.1081/FST-120027216

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title = "Chemically driven microstructure evolution in cobalt-fullerene mixed system",

abstract = "We report on the formation of Co-C60 nano-composite prepared by simultaneous deposition of cobalt and C60 fullerene on sapphire or NaCl at room temperature. The composite includes fcc-Co single-crystals with size of order 10 nm separated by C60-based matrix. Detailed characterization of the composite by electron diffraction and Raman spectrometry revealed the existence of small amount of diamond and cobalt carbides (orthorhombic Co2C and Co3C) in the composite matrix. According to electron diffraction analysis diamond nucleates epitaxialy on facets of fcc-Co crystals. The proposed model shows the role of chemical interaction in Co-C60 mixture in the nano-composite structure formation.",

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T1 - Chemically driven microstructure evolution in cobalt-fullerene mixed system

AU - Lavrentiev, V.

AU - Naramoto, H.

AU - Abe, H.

AU - Yamamoto, S.

AU - Narumi, K.

AU - Sakai, S.

PY - 2005/1/2

Y1 - 2005/1/2

N2 - We report on the formation of Co-C60 nano-composite prepared by simultaneous deposition of cobalt and C60 fullerene on sapphire or NaCl at room temperature. The composite includes fcc-Co single-crystals with size of order 10 nm separated by C60-based matrix. Detailed characterization of the composite by electron diffraction and Raman spectrometry revealed the existence of small amount of diamond and cobalt carbides (orthorhombic Co2C and Co3C) in the composite matrix. According to electron diffraction analysis diamond nucleates epitaxialy on facets of fcc-Co crystals. The proposed model shows the role of chemical interaction in Co-C60 mixture in the nano-composite structure formation.

AB - We report on the formation of Co-C60 nano-composite prepared by simultaneous deposition of cobalt and C60 fullerene on sapphire or NaCl at room temperature. The composite includes fcc-Co single-crystals with size of order 10 nm separated by C60-based matrix. Detailed characterization of the composite by electron diffraction and Raman spectrometry revealed the existence of small amount of diamond and cobalt carbides (orthorhombic Co2C and Co3C) in the composite matrix. According to electron diffraction analysis diamond nucleates epitaxialy on facets of fcc-Co crystals. The proposed model shows the role of chemical interaction in Co-C60 mixture in the nano-composite structure formation.

KW - Co-C nano-composite

KW - Cobalt-fullerene mixed system

KW - Orth-CoC and Orth-CoC

KW - Transmission electron microscopy

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Chemically driven microstructure evolution in cobalt-fullerene mixed system

Abstract

Keywords

ASJC Scopus subject areas

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