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|標題:||Influence of Catalysts on the Preparation of Carbon Nanotubes for Toluene Oxidation|
|期刊/報告no：:||Industrial & Engineering Chemistry Research, Volume 48, Issue 9, Page(s) 4202-4209.|
|摘要:||This study aims to investigate the effect of catalysts on the preparation of carbon nanotubes (CNTs) and the catalytic properties of Co/CNT for toluene oxidation between 175 and 250 degrees C. A different ratio of Co to Mo supported on Al(2)O(3) was used in the chemical vapor deposition method to synthesize the carbon nanotubes. Moreover, the catalytic activities of Al(2)O(3)-supported catalysts for toluene oxidation were also measured, and the results were compared with the catalytic activities of Co/CNT catalysts. To confirm the characterization of CNT and Co/CNT, the composition and morphology of various catalysts were analyzed by using field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), Raman spectra, BET, and X-ray photoelectron spectroscopy (XPS). The results indicated that the catalytic activity of Co/CNT catalysts was higher than that of the Al(2)O(3)-supported catalysts. Furthermore, the catalytic activity of Co/CNT prepared by using 2.4% Co-0.6% Mo/Al(2)O(3) for toluene oxidation was 100% at 225 degrees C. The results demonstrated that the removal efficiency of toluene depends on the species of catalysts synthesized on the carbon nanotubes.|
|Appears in Collections:||環境工程學系所|
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