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Surface Studies on Graphite: Acidic Surface Oxides,
ROYAL MILITARY COLL OF CANADA KINGSTON (ONTARIO) DEPT OF CHEMISTRY AND CHEMICAL ENGINEERING
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The extent of chemically detectable acidic surface oxides on graphite has been compared to the total coverage of the surface with oxide. Evolved gas analysis techniques using a mass spectrometer have been used to determine the composition of the gases evolved CO, CO2, and H2O on thermal decomposition of the surface species. The thermal stability of the acidic oxides neutralized by sodium hydroxide has been related to the oxide which on thermal decomposition yields CO2. It appears that a large fraction of the oxide surface, probably composed of carbonyl groups yielding CO on thermal decomposition, is neutral in character. Author
APPROVED FOR PUBLIC RELEASE