TiO2 nanotubes supported V2O5 for the selective oxidation of methanol to dimethoxymethane
作者： Jingwei Liu , Yuchuan Fu , Qing Sun , Jianyi Shen
DOI: 10.1016/J.MICROMESO.2008.05.032
关键词: Catalysis 、 Adsorption 、 X-ray photoelectron spectroscopy 、 Methanol 、 Fourier transform infrared spectroscopy 、 Dimethoxymethane 、 Chemistry 、 Mesoporous material 、 Inorganic chemistry 、 Infrared spectroscopy
摘要: Abstract Chlorine free mesoporous TiO2 nanotubes (TNT) with high surface areas were prepared and used to support V2O5. The addition of V2O5 increased the acidity TNT, which was further enhanced by Ti(SO4)2. materials characterized X-ray diffraction (XRD), laser Raman spectroscopy (LRS), transmission electron microscopy (TEM), N2 O2 adsorption, photoelectron (XPS), temperature-programmed reduction (H2-TPR), microcalorimetry infrared (FTIR) for adsorption NH3. catalytic behavior selective oxidation methanol dimethoxymethane (DMM) evaluated. It found that highly dispersed on TNT loading lower than 20 wt%. 6% SO 4 2 − /20%V2O5/TNT displayed strong acidic redox characters exhibited excellent performance DMM. conversion reached 64% 90% selectivity DMM over at 403 K.
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sci-hub.se 参考文章(54)
Mohit Badlani, Israel E. Wachs, Methanol: A “Smart” Chemical Probe Molecule Catalysis Letters. ,vol. 75, pp. 137- 149 ,(2001) , 10.1023/A:1016715520904
E. Zhao, Yu. Isaev, A. Sklyarov, J.J. Fripiat, Acid centers in sulfated, phosphated and/or aluminated zirconias Catalysis Letters. ,vol. 60, pp. 173- 181 ,(1999) , 10.1023/A:1019027628585
A. Auroux, Acidity characterization by microcalorimetry and relationship with reactivity Topics in Catalysis. ,vol. 4, pp. 71- 89 ,(1997) , 10.1023/A:1019127919907
Di Wu, Yanfeng Chen, Ji Liu, Xiaoning Zhao, Aidong Li, Naiben Ming, Co-doped titanate nanotubes Applied Physics Letters. ,vol. 87, pp. 112501- ,(2005) , 10.1063/1.2043254
Wang Yong-gang, Zhang Xiao-gang, Preparation and electrochemical capacitance of RuO2/TiO2 nanotubes composites Electrochimica Acta. ,vol. 49, pp. 1957- 1962 ,(2004) , 10.1016/J.ELECTACTA.2003.12.023
Mehri Sanati, Arne Andersson, Ammoxtoation of toluene over TiO2(B)-supported vanadium oxide catalysts Journal of Molecular Catalysis. ,vol. 59, pp. 233- 255 ,(1990) , 10.1016/0304-5102(90)85055-M
F ROOZEBOOM, Vanadium oxide monolayer catalysts The vapor-phase oxidation of methanol Journal of Catalysis. ,vol. 68, pp. 464- 472 ,(1981) , 10.1016/0021-9517(81)90116-0
L. Baraket, A. Ghorbel, P. Grange, Selective catalytic reduction of NO by ammonia on V2O5-SO42-/TiO2 catalysts prepared by the sol-gel method Applied Catalysis B-environmental. ,vol. 72, pp. 37- 43 ,(2007) , 10.1016/J.APCATB.2006.10.001
Dmitry V. Bavykin, Alexei A. Lapkin, Pawel K. Plucinski, Laura Torrente-Murciano, Jens M. Friedrich, Frank C. Walsh, Deposition of Pt, Pd, Ru and Au on the surfaces of titanate nanotubes Topics in Catalysis. ,vol. 39, pp. 151- 160 ,(2006) , 10.1007/S11244-006-0051-4
L TORRENTEMURCIANO, A LAPKIN, D BAVYKIN, F WALSH, K WILSON, Highly selective Pd/titanate nanotube catalysts for the double-bond migration reaction Journal of Catalysis. ,vol. 245, pp. 272- 278 ,(2007) , 10.1016/J.JCAT.2006.10.015