Infrared Spectroscopy of Hydrogen and Water on Diamond (100)
RICE UNIV HOUSTON TX DEPT OF CHEMISTRY
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The absorption of deuterium and water on diamond 100 has been investigated by infrared multiple-internal-reflection spectroscopy using a natural type IIa diamond internal reflection element. Evidence was seen for both monohydride surface species CD deformation mode at 901cm and dihydride species CD2 deformation mode at 1125cm. Following exposure to water at elevated temperature, infrared modes were detected at 1280, 1200, 1125, 1080, and 720cm, and are assigned to ether C-O-C, hydroxyl -OH, and carbonyl CO modes. The substantial observed reactivity of diamond with water indicates a potentially important role for surface hydroxyl and oxide species in diamond growth.
- Inorganic Chemistry
- Physical Chemistry
- Atomic and Molecular Physics and Spectroscopy