J. Phys. IV France 07 (1997) C1-681-C1-682
Synthesis and Characterization of Carbon-Bearing Ni(II) Ferrite (CBNF)T. Sano, H. Hasegawa, M. Kojima, M. Tsuji and Y. Tamaura
Research Center for Carbon Recycling & Utilization, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152, Japan
Carbon-bearing Ni(II)-ferrite (CBNF) was prepared by repeated decomposition of CO2 on H2-reduced Ni(II)-ferrite. The material was also characterized by Mössbauer spectra. XRD and chemical analysis. A peculiar amorphous surface layer composed of carbon, divalent transition metals and oxide ions (CIO layer) was found to be synthesized on the surface of the CBNF. Deposited carbon on the CBNF was characterized using X-ray photoelectron spectroscopy. About 70% of deposited carbon was assigned to graphite.
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