The purity and thermal stability in air of metal-encapsulating carbon nanocapsules (MECNCs)

Motohiro Uo; Hanako Kachi; Tsukasa Akasaka; Fumio Watari; Yoshinori Sato; Kenichi Motomiya; Kazuyuki Tohji

doi:10.1080/15363830701423773

The purity and thermal stability in air of metal-encapsulating carbon nanocapsules (MECNCs)

Motohiro Uo, Hanako Kachi, Tsukasa Akasaka, Fumio Watari, Yoshinori Sato, Kenichi Motomiya, Kazuyuki Tohji

ENV - Environmental Studies for Advanced Society

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

3 Citations (Scopus)

Abstract

Rare earth elements (Y, La, Ce, Nd, Gd and Dy) encapsulated by carbon nanocapsules (CNCs) were synthesized and their purity and air oxidation stability were estimated. The purity was estimated as the rare earth carbide content. Gd- and Dy-encapsulating CNCs had higher than 30 wt% and others 15 to 20 wt%. Encapsulated rare earth carbide was oxidized by heating in air at 400C or higher. This suggested oxidation damage to the graphene capsules of CNCs.

Original language	English
Pages (from-to)	303-309
Number of pages	7
Journal	Fullerenes Nanotubes and Carbon Nanostructures
Volume	15
Issue number	4
DOIs	https://doi.org/10.1080/15363830701423773
Publication status	Published - 2007 Jul

Keywords

Carbide
Metal encapsulating carbon nanocapsules
Purity
Rare earth
Thermal stability

ASJC Scopus subject areas

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

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10.1080/15363830701423773

Cite this

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title = "The purity and thermal stability in air of metal-encapsulating carbon nanocapsules (MECNCs)",

abstract = "Rare earth elements (Y, La, Ce, Nd, Gd and Dy) encapsulated by carbon nanocapsules (CNCs) were synthesized and their purity and air oxidation stability were estimated. The purity was estimated as the rare earth carbide content. Gd- and Dy-encapsulating CNCs had higher than 30 wt% and others 15 to 20 wt%. Encapsulated rare earth carbide was oxidized by heating in air at 400C or higher. This suggested oxidation damage to the graphene capsules of CNCs.",

keywords = "Carbide, Metal encapsulating carbon nanocapsules, Purity, Rare earth, Thermal stability",

author = "Motohiro Uo and Hanako Kachi and Tsukasa Akasaka and Fumio Watari and Yoshinori Sato and Kenichi Motomiya and Kazuyuki Tohji",

note = "Funding Information: This work was supported by Research on Advanced Medical Technology in Health and Labour Sciences Research Grants from the Ministry of Health, Labour and Welfare of Japan. A part of this study was also supported by Grant-in-Aid for Scientific Research (B) No.18390509 from the Ministry of Education, Culture, Sports, Science and Technology, Japan.",

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language = "English",

volume = "15",

pages = "303--309",

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T1 - The purity and thermal stability in air of metal-encapsulating carbon nanocapsules (MECNCs)

AU - Uo, Motohiro

AU - Kachi, Hanako

AU - Akasaka, Tsukasa

AU - Watari, Fumio

AU - Sato, Yoshinori

AU - Motomiya, Kenichi

AU - Tohji, Kazuyuki

N1 - Funding Information: This work was supported by Research on Advanced Medical Technology in Health and Labour Sciences Research Grants from the Ministry of Health, Labour and Welfare of Japan. A part of this study was also supported by Grant-in-Aid for Scientific Research (B) No.18390509 from the Ministry of Education, Culture, Sports, Science and Technology, Japan.

PY - 2007/7

Y1 - 2007/7

N2 - Rare earth elements (Y, La, Ce, Nd, Gd and Dy) encapsulated by carbon nanocapsules (CNCs) were synthesized and their purity and air oxidation stability were estimated. The purity was estimated as the rare earth carbide content. Gd- and Dy-encapsulating CNCs had higher than 30 wt% and others 15 to 20 wt%. Encapsulated rare earth carbide was oxidized by heating in air at 400C or higher. This suggested oxidation damage to the graphene capsules of CNCs.

AB - Rare earth elements (Y, La, Ce, Nd, Gd and Dy) encapsulated by carbon nanocapsules (CNCs) were synthesized and their purity and air oxidation stability were estimated. The purity was estimated as the rare earth carbide content. Gd- and Dy-encapsulating CNCs had higher than 30 wt% and others 15 to 20 wt%. Encapsulated rare earth carbide was oxidized by heating in air at 400C or higher. This suggested oxidation damage to the graphene capsules of CNCs.

KW - Carbide

KW - Metal encapsulating carbon nanocapsules

KW - Purity

KW - Rare earth

KW - Thermal stability

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JO - Fullerenes Nanotubes and Carbon Nanostructures

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ER -

The purity and thermal stability in air of metal-encapsulating carbon nanocapsules (MECNCs)

Abstract

Keywords

ASJC Scopus subject areas

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