and Ming Y. Wey * †, Chi Y. Lu §Department of Environmental Engineering, National Chung Hsing University, Taichung 402, Taiwan, R.O.C., Department of Safety Health and Environmental Engineering, Ming-Chi University of Technology, Taishan Township, Taipei County 243, Taiwan, R.O.C., and Department of Public Health, Chung Shan Medical University, Taichung 402, Taiwan, R.O.C.Kui H. Chuang †, Zhen S. Liu ‡
刊名
Industrial and Engineering Chemistry Research
年份
2009
卷号
Vol.48 No.9
页码
4202-4209
摘要
This study aims to investigate the effect of catalysts on the preparation of carbon nanotubes and the catalytic properties of Co/CNT for toluene oxidation between 175 and 250 °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/C...更多
This study aims to investigate the effect of catalysts on the preparation of carbon nanotubes and the catalytic properties of Co/CNT for toluene oxidation between 175 and 250 °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 , transmission electron microscopy , Raman spectra, BET, and X-ray photoelectron spectroscopy . 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 °C. The results demonstrated that the removal efficiency of toluene depends on the species of catalysts synthesized on the carbon nanotubes.收起
