Low-temperature synthesis of multiwalled carbon nanotubes by graphite antenna CVD in a hydrogen-free atmosphere

Daisuke Yokoyama; Takayuki Iwasaki; Kentaro Ishimaru; Shintaro Sato; Mizuhisa Nihei; Yuji Awano; Hiroshi Kawarada

doi:10.1016/j.carbon.2009.10.035

Low-temperature synthesis of multiwalled carbon nanotubes by graphite antenna CVD in a hydrogen-free atmosphere

Daisuke Yokoyama, Takayuki Iwasaki, Kentaro Ishimaru, Shintaro Sato, Mizuhisa Nihei, Yuji Awano, Hiroshi Kawarada^*

^*この研究の対応する著者

基幹理工学部

研究成果: Article › 査読

14 被引用数 (Scopus)

抄録

Multiwalled carbon nanotubes (MWCNTs) were synthesized at 390 °C in a hydrogen-free atmosphere by graphite antenna chemical vapor deposition, which provides carbon radicals by the etching of the antenna itself in a He- or Ar-based noble gas plasma. An increase in the number of defects in the graphite layers of the CNTs was observed with increasing hydrogen partial pressure. The results of X-ray photoelectron spectroscopy analysis suggested that these defects were caused by the transformation from an sp² to an sp³ structure in the graphite layers of CNTs due to hydrogen radicals.

本文言語	English
ページ（範囲）	825-831
ページ数	7
ジャーナル	Carbon
巻	48
号	3
DOI	https://doi.org/10.1016/j.carbon.2009.10.035
出版ステータス	Published - 2010 3月

ASJC Scopus subject areas

化学 (全般)
材料科学（全般）

文献へのアクセス

10.1016/j.carbon.2009.10.035

他のファイルとリンク

引用スタイル

@article{8c25e871f8eb466685d98feb643577c3,

title = "Low-temperature synthesis of multiwalled carbon nanotubes by graphite antenna CVD in a hydrogen-free atmosphere",

abstract = "Multiwalled carbon nanotubes (MWCNTs) were synthesized at 390 °C in a hydrogen-free atmosphere by graphite antenna chemical vapor deposition, which provides carbon radicals by the etching of the antenna itself in a He- or Ar-based noble gas plasma. An increase in the number of defects in the graphite layers of the CNTs was observed with increasing hydrogen partial pressure. The results of X-ray photoelectron spectroscopy analysis suggested that these defects were caused by the transformation from an sp2 to an sp3 structure in the graphite layers of CNTs due to hydrogen radicals.",

author = "Daisuke Yokoyama and Takayuki Iwasaki and Kentaro Ishimaru and Shintaro Sato and Mizuhisa Nihei and Yuji Awano and Hiroshi Kawarada",

note = "Funding Information: This work was completed as part of the MIRAI Project supported by NEDO. TEM observation was supported by Mineichi Fujiwara at Kagami Memorial Laboratory for Materials Science and Technology, Waseda University.",

year = "2010",

month = mar,

doi = "10.1016/j.carbon.2009.10.035",

language = "English",

volume = "48",

pages = "825--831",

journal = "Carbon",

issn = "0008-6223",

publisher = "Elsevier Limited",

number = "3",

}

TY - JOUR

T1 - Low-temperature synthesis of multiwalled carbon nanotubes by graphite antenna CVD in a hydrogen-free atmosphere

AU - Yokoyama, Daisuke

AU - Iwasaki, Takayuki

AU - Ishimaru, Kentaro

AU - Sato, Shintaro

AU - Nihei, Mizuhisa

AU - Awano, Yuji

AU - Kawarada, Hiroshi

N1 - Funding Information: This work was completed as part of the MIRAI Project supported by NEDO. TEM observation was supported by Mineichi Fujiwara at Kagami Memorial Laboratory for Materials Science and Technology, Waseda University.

PY - 2010/3

Y1 - 2010/3

N2 - Multiwalled carbon nanotubes (MWCNTs) were synthesized at 390 °C in a hydrogen-free atmosphere by graphite antenna chemical vapor deposition, which provides carbon radicals by the etching of the antenna itself in a He- or Ar-based noble gas plasma. An increase in the number of defects in the graphite layers of the CNTs was observed with increasing hydrogen partial pressure. The results of X-ray photoelectron spectroscopy analysis suggested that these defects were caused by the transformation from an sp2 to an sp3 structure in the graphite layers of CNTs due to hydrogen radicals.

AB - Multiwalled carbon nanotubes (MWCNTs) were synthesized at 390 °C in a hydrogen-free atmosphere by graphite antenna chemical vapor deposition, which provides carbon radicals by the etching of the antenna itself in a He- or Ar-based noble gas plasma. An increase in the number of defects in the graphite layers of the CNTs was observed with increasing hydrogen partial pressure. The results of X-ray photoelectron spectroscopy analysis suggested that these defects were caused by the transformation from an sp2 to an sp3 structure in the graphite layers of CNTs due to hydrogen radicals.

UR - http://www.scopus.com/inward/record.url?scp=71649092223&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=71649092223&partnerID=8YFLogxK

U2 - 10.1016/j.carbon.2009.10.035

DO - 10.1016/j.carbon.2009.10.035

M3 - Article

AN - SCOPUS:71649092223

SN - 0008-6223

VL - 48

SP - 825

EP - 831

JO - Carbon

JF - Carbon

IS - 3

ER -

Low-temperature synthesis of multiwalled carbon nanotubes by graphite antenna CVD in a hydrogen-free atmosphere

抄録

ASJC Scopus subject areas

文献へのアクセス

他のファイルとリンク

フィンガープリント

引用スタイル