Characterization of Newly Synthesized Novel Graphite Films.

摘要

Reactions of C sub 6 H sub 6 and BCl sub 3 at 800/degree/C yield a metallic graphite-like material of composition BC/sub x/(3.0 less than or equal to x less than or equal to 4.00) while reactions of BCl sub 3 , NH sub 3 and C sub 2 H sub 2 produces a B/C/N graphitic semiconductor of approximate stoichiometry B sub 2 CN sub 2 . Both materials were shown to be homogeneous using Auger electron spectroscopy and extensively characterized by electron energy-loss spectroscopy. Single loss profiles of the EELS data were obtained using the fourier-log deconvolution method. Compositions were determined using hydrogenic cross-sections. A careful study of the plasmon resonance energies and the fine structures of the core-loss edges of these materials has been invaluable in demonstrating that the boron, carbon and nitrogen atoms are all sp sup 2 hybridized. Therefore, these new materials are in-sheet graphite hybrids and not intercalations. 6 refs., 2 figs., 1 tab. (ERA citation 14:004763)