Carbon structure and resulting graphitizability upon oxygen evolution

Joseph P. Abrahamson, Abhishek Jain, Adri Van Duin, Randy Lee Vander Wal

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Model compounds: anthracene, sucrose, anthanthrone, anthrone and fluorene were carbonized at 500 °C and subsequently heat treated at 2600 °C. The majority of initial oxygen content was lost during low temperature carbonization. The intermediate species formed after oxygen evolution dictated the resulting carbon skeleton and thus the graphitizability. Anthracene and sucrose were selected as model graphitizing and non-graphitizing compounds based on historical precedence. Carbonization of anthanthrone resulted in a graphitizable coke, whereas anthrone yielded a non-graphitizable char. It is proposed that CO loss from anthanthrone results in the formation of perylene, where CO loss from anthrone produces fluorene. An obvious resemblance was observed in structure between heat treated sucrose and anthrone char as compared to heated treated char embedded with 5 membered rings via carbonization of fluorene. Thus, providing evidence that 5 membered rings are present in the virgin chars and are the cause of non-graphitizability. Polarized light microscopy was employed to measure the extent of mesophase development after carbonization. Transmission electron microscopy, X-ray diffraction, energy dispersive X-ray spectroscopy and electron energy loss spectroscopy were used to characterize the material before and after annealing.

Original languageEnglish (US)
Pages (from-to)171-179
Number of pages9
JournalCarbon
Volume135
DOIs
StatePublished - Aug 1 2018

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Carbonization
Sugar (sucrose)
Carbon
Oxygen
Sucrose
Anthracene
Carbon Monoxide
Perylene
Electron energy loss spectroscopy
Light polarization
Coke
Optical microscopy
Annealing
Transmission electron microscopy
X ray diffraction
anthrone
fluorene
Temperature
anthracene
Hot Temperature

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Science(all)

Cite this

Abrahamson, Joseph P. ; Jain, Abhishek ; Van Duin, Adri ; Vander Wal, Randy Lee. / Carbon structure and resulting graphitizability upon oxygen evolution. In: Carbon. 2018 ; Vol. 135. pp. 171-179.
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Carbon structure and resulting graphitizability upon oxygen evolution. / Abrahamson, Joseph P.; Jain, Abhishek; Van Duin, Adri; Vander Wal, Randy Lee.

In: Carbon, Vol. 135, 01.08.2018, p. 171-179.

Research output: Contribution to journalArticle

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