期刊
CHEMICAL PHYSICS LETTERS
卷 426, 期 4-6, 页码 345-350出版社
ELSEVIER
DOI: 10.1016/j.cplett.2006.05.026
关键词
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Decomposition of methane into carbon nanotubes over Coo catalysts supported on various catalyst supports at 550 degrees C and 700 degrees C was investigated. The effect of catalyst promoters on the supported Coo catalysts at 700 degrees C was also examined. Electron microscope observations showed that among the various catalyst supports tested, alumina was found to be the most appropriate for Coo that CoO/Al2O3 catalyst grew carbon nanotubes with significant hollow cores. Experimental results further revealed that introducing FeO into CoO/Al2O3 catalyst resulted in the formation of carbon nanotubes with thin wall structure. Introducing MoO into CoO/Al2O3 catalyst increased the carbon capacity and the selectivity of CoO/Al2O3 catalyst in growing better quality carbon nanotubes. (c) 2006 Elsevier B.V. All rights reserved.
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