Partial separation of fullerenes by gradient sublimation

Chahan Yeretzian, John B. Wiley, Károly Holczer, Tim Su, Song Nguyen, Richard B. Kaner, Robert L. Whetten

Research output: Contribution to journalArticlepeer-review

42 Scopus citations

Abstract

An experimental technique is investigated to separate/enrich fullerenes or metallofullerenes, exploiting differences in sublimation temperatures without the use of solvents. Fullerenes are sublimed out of the soot and deposited on a quartz rod along a temperature gradient (gradient sublimation). In a position-sensitive experiment the composition of the deposit on the rod is monitored by laser-desorption mass spectrometry. Strongly enriched regions containing specific fullerene molecules (i.e., C84 or La@C82) are observed. Furthermore, C74, which could not be extracted from the soot by organic solvents, sublimes out of the soot.

Original languageEnglish (US)
Pages (from-to)10097-10101
Number of pages5
JournalJournal of physical chemistry
Volume97
Issue number39
DOIs
StatePublished - 1993
Externally publishedYes

ASJC Scopus subject areas

  • Engineering(all)
  • Physical and Theoretical Chemistry

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