Effects of surface treatment on the bulk chemistry and structure of vapor grown carbon fibers

H. Darmstadt, L. Sümmchen, J. M. Ting, U. Roland, S. Kaliaguine, C. Roy

研究成果: Article同行評審

103 引文 斯高帕斯(Scopus)

摘要

Various surface treatments were performed previously to modify the surface condition of vapor grown carbon fibers (VGCF). However, by these surface treatments, in addition to the surface chemistry, the bulk chemistry and structure of the VGCF was influenced as well. Raman spectroscopy and nitrogen adsorption were used to study the changes in bulk chemistry and structure, and surface morphology, respectively, for surface treated VGCF. The bulk chemistry was compared with the surface chemistry obtained in an earlier study. In contrast to other types of carbon fibers, as-grown VGCF contain carbon atoms in an aliphatic environment in the bulk and have only a small pore volume. However, pores could be created in VGCF by surface oxidation. Furthermore, surface oxidation also decreased the order of the graphitic structures and the concentration of aliphatic structures in the bulk.

原文English
頁(從 - 到)1581-1585
頁數5
期刊Carbon
35
發行號10-11
DOIs
出版狀態Published - 1997

All Science Journal Classification (ASJC) codes

  • 化學 (全部)
  • 材料科學(全部)

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