Details

Autor(en) / Beteiligte

• Chen, Zhihong
• Du, Xu
• Du, Mao-Hua
• Rancken, C. Daniel
• Cheng, Hai-Ping
• Rinzler, Andrew G

Titel

Bulk Separative Enrichment in Metallic or Semiconducting Single-Walled Carbon Nanotubes

Ist Teil von

• Nano letters, 2003-09, Vol.3 (9), p.1245-1249

Ort / Verlag

Washington, DC: American Chemical Society

Erscheinungsjahr

2003

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• A postsynthesis method of separating metallic from semiconducting single-walled carbon nanotubes and a method based on absorption spectroscopy for assay of the separation efficiency are described. The separation method relies on chemical discrimination in the charge-transfer complex formation between bromine and the metallic versus semiconducting nanotubes and takes advantage of the resulting density difference to effect a centrifugation-based separation. Calculations support the proposed separation mechanism.