Highly chiral-selective growth of single-walled carbon nanotubes with a simple 
monometallic Co catalyst

Fouquet, Martin; Bayer, Bernhard C.; Esconjauregui, Santiago; Blume, Raoul; Warner, J. H.; Hofmann, Stephan; Schlögl, Robert; Thomsen, C.; Robertson, John

doi:10.1103/PhysRevB.85.235411

アイテム詳細

登録内容を編集ファイル形式で保存

一時保存へ追加

タグ情報を表示リリース履歴を表示詳細要約

公開

学術論文

Highly chiral-selective growth of single-walled carbon nanotubes with a simple monometallic Co catalyst

MPS-Authors

/persons/resource/persons22071

Schlögl, Robert
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

External Resource

There are no locators available

Fulltext (restricted access)

There are currently no full texts shared for your IP range.

フルテキスト (公開)

e235411.pdf
(出版社版), 2MB

付随資料 (公開)

There is no public supplementary material available

引用

Fouquet, M., Bayer, B. C., Esconjauregui, S., Blume, R., Warner, J. H., Hofmann, S., Schlögl, R., Thomsen, C., & Robertson, J. (2012). Highly chiral-selective growth of single-walled carbon nanotubes with a simple monometallic Co catalyst. Physical Review B, 85(23):. doi:10.1103/PhysRevB.85.235411.

引用: https://hdl.handle.net/11858/00-001M-0000-000F-D2C0-B

要旨

We report on the growth of single-walled carbon nanotubes from a monometallic Co catalyst on an oxidized Si wafer support by the most simple growth recipe (vacuum annealing, growth by undiluted C2H2). Nevertheless,
multiwavelength Raman spectroscopy and transmission electron spectroscopy show a remarkable selectivity for chiral indices and thus, e.g., high abundance with a single chirality representing 58% of all semiconducting tubes. In situ x-ray photoelectron spectroscopy monitors the catalyst chemistry during carbon nanotube growth and shows interfacial Co-Si interactions that may help to stabilize the nanoparticle/nanotube diameter. We outline a two-mechanism model explaining the selective growth.