Accession Number:

AD0754715

Title:

Surface Studies on Graphite: Acidic Surface Oxides,

Descriptive Note:

Corporate Author:

ROYAL MILITARY COLL OF CANADA KINGSTON (ONTARIO) DEPT OF CHEMISTRY AND CHEMICAL ENGINEERING

Personal Author(s):

• Barton,S. S.
• Boulton,G. L.
• Harrison,B. H.

Report Date:

1971-07-27

Pagination or Media Count:

7.0

Abstract:

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

Descriptors:

• (*GRAPHITE
• *SURFACE PROPERTIES)
• OXIDES
• MASS SPECTROSCOPY
• DECOMPOSITION
• THERMAL STABILITY
• CARBON DIOXIDE
• CARBON MONOXIDE
• CANADA
• CHEMICAL BONDS

Subject Categories:

• Atomic and Molecular Physics and Spectroscopy

Distribution Statement:

APPROVED FOR PUBLIC RELEASE