Influence of catalysts on the preparation of carbon nanotubes for toluene oxidation / Kui H. Chuang in Industrial & engineering chemistry research, Vol. 48 N° 9 (Mai 2009)  

Public ISBD [article]  inIndustrial & engineering chemistry research > Vol. 48 N° 9 (Mai 2009) . - pp. 4202–4209 Titre : Influence of catalysts on the preparation of carbon nanotubes for toluene oxidation Type de document : texte imprimé Auteurs : Kui H. Chuang, Auteur ; Zhen S. Liu, Auteur ; Chi Y. Lu, Auteur Année de publication : 2009 Article en page(s) : pp. 4202–4209 Note générale : Chemical engineering Langues : Anglais (eng) Mots-clés : 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 [article] Influence of catalysts on the preparation of carbon nanotubes for toluene oxidation [texte imprimé] / Kui H. Chuang, Auteur ; Zhen S. Liu, Auteur ; Chi Y. Lu, Auteur . - 2009 . - pp. 4202–4209. Chemical engineering Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 48 N° 9 (Mai 2009) . - pp. 4202–4209 Mots-clés : 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

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