High-modulus, polyacrylonitrile-derived carbon fibres were heated in situ, in the analysis chamber of an XPS spectrometer, from 25° C to 300° C, 600° C, and 800° C, and then cooled at 25° C. The fibre status at each temperature step was monitored by analyzing the Cls, Ols, C-KVV, and VB regions. The decrease in concentration of oxygen-containing surface functional groups was pre sumably responsible for most of the changes in the examined spectral regions. The analysis of the results did not give evidence of any change in the carbon sp2 bonding, and allowed a reasonably accurate lineshape of the Cls region of “oxygen-free” carbon fibres to be obtained.

XPS/XAES study of carbon fibres during thermal annealing under UHV conditions / E. Desimoni, G.I. Casella, A.M. Salvi. - In: CARBON. - ISSN 0008-6223. - 30:4(1992), pp. 521-526.

XPS/XAES study of carbon fibres during thermal annealing under UHV conditions

E. Desimoni;
1992

Abstract

High-modulus, polyacrylonitrile-derived carbon fibres were heated in situ, in the analysis chamber of an XPS spectrometer, from 25° C to 300° C, 600° C, and 800° C, and then cooled at 25° C. The fibre status at each temperature step was monitored by analyzing the Cls, Ols, C-KVV, and VB regions. The decrease in concentration of oxygen-containing surface functional groups was pre sumably responsible for most of the changes in the examined spectral regions. The analysis of the results did not give evidence of any change in the carbon sp2 bonding, and allowed a reasonably accurate lineshape of the Cls region of “oxygen-free” carbon fibres to be obtained.
XPS ; carbon KVV Auger spectra ; carbon fibres ; high-temperature annealing ; carbon surface oxides
Settore CHIM/01 - Chimica Analitica
CARBON
Article (author)
File in questo prodotto:
Non ci sono file associati a questo prodotto.
Pubblicazioni consigliate

Caricamento pubblicazioni consigliate

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2434/176639
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 129
  • ???jsp.display-item.citation.isi??? 124
social impact