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In this paper we report the development of self-standing tubular geometry of aligned carbon nanotubes with very high surface area (∼90 m 2 /g). The synthesis involves spray pyrolysis of ferrocene-benzene solution in nitrogen atmosphere. The effects of temperature, ferrocene concentration, flow rate of nitrogen gas and the pumping rate of the liquid precursor were studied. The products were...
Ferrous carbonate was precipitated from the reaction of ferrous sulfate and sodium carbonate in an aqueous medium. The precipitate was calcined at different eating rates (2, 5 and 10 o C/min, respectively) up to 500 o C and the iron oxides produced were found to be magnetic. X-ray diffraction studies indicated the presence of gamma ferric oxide as a major phase in all the cases. It...
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