Comparison of surface properties of carbons gasified in nitrous oxide and in oxygen

H. Teng, H. C. Lin

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9 Citations (Scopus)


Surface structures and reactivities of carbons gasified in N2O and in O2 are compared in this study. The carbon employed was derived from pyrolysis of phenol-formaldehyde resins. It was found that greater surface area and pore volume are created for the carbon gasified in O2 than that in N2O. At high extents of burn-off the carbon gasified in N2O shows a larger mesopore volume than that in O2. The reactivity per unit surface area of the carbon in N2O decreases with the extent of burn-off, while that in O2 remains relatively constant at various extents of burn-off. Surfaces in carbon micropores do not appear to be fully utilized in the N2O-carbon reaction. It is confirmed that standard N2 or CO2 surface area is not a proper characterization of the reactive surface area of carbon gasified in N2O.

Original languageEnglish
Pages (from-to)1811-1817
Number of pages7
Issue number12
Publication statusPublished - 1997 Jan 1

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Science(all)

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