| Titre : | Influence of catalysts on the preparation of carbon nanotubes for toluene oxidation (2009) |
| Auteurs : | Kui H. Chuang, Auteur ; Zhen S. Liu, Auteur ; Chi Y. Lu, Auteur |
| Type de document : | Article : texte imprimé |
| Dans : | Industrial & engineering chemistry research (Vol. 48 N° 9, Mai 2009) |
| Article en page(s) : | pp. 4202–4209 |
| Note générale : | Chemical engineering |
| Langues : | Anglais |
| Tags : | Catalysts Carbon nanotubes Toluene oxidation Chemical vapor deposition method |
| Résumé : | 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 °C. A different ratio of Co to Mo supported on Al2O3 was used in the chemical vapor deposition method to synthesize the carbon nanotubes. Moreover, the catalytic activities of Al2O3-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 Al2O3-supported catalysts. Furthermore, the catalytic activity of Co/CNT prepared by using 2.4% Co−0.6% Mo/Al2O3 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. |
| En ligne : | http://pubs.acs.org/doi/abs/10.1021/ie801692g |
