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考察了MoBiTeO/SiO2催化剂对丙烷选择氧化制丙烯醛的催化性能,并采用原位拉曼、 X射线衍射和X光电子能谱等技术研究了催化剂在反应过程中的结构重组及其对催化性能的影响. 实验结果表明,反应前, MoBiTeO/SiO2催化剂主要由Te多钼酸盐物种组成;在570 ℃和C3H8/O2/N2=1.2/1/4的反应条件下, MoBiTeO/SiO2催化剂中的部分Te组分被深度还原为金属Te而流失,使部分Te多钼酸盐物种进行了结构重组形成了MoO3物种. Te多钼酸盐和MoO3之间的协同作用使催化剂的催化性能提高.

参考文献

[1] Bettahar M M;Costentin G;Savary L;Lavalley J C .[J].Applied Catalysis A:General,1996,145(1-2):1.
[2] Abon M.;Tuel A.;Delichere P.;Bere KE. .EVOLUTION OF A VPO CATALYST IN N-BUTANE OXIDATION REACTION DURING THE ACTIVATION TIME[J].Journal of Catalysis,1995(1):28-36.
[3] Volta J C .[J].Catalysis Today,1996,32(01):29.
[4] Abdelouahab F B;Olier R;Guilhaume N;Lefebvre F Volta J C .[J].Journal of Catalysis,1992,134(01):151.
[5] Pantazidis A.;Kiely CJ.;Mirodatos C.;Burrows A. .Direct evidence of active surface reconstruction during oxidative dehydrogenation of propane over VMgO catalyst[J].Journal of Catalysis,1998(2):325-334.
[6] 张昕,伊晓东,毕盈,翁维正,万惠霖.丙烷选择氧化反应中钼基催化剂动态结构的研究[J].催化学报,2002(02):191-194.
[7] 廖远琰 .[J].光散射学报,1998,10(3-4):135.
[8] Spevack P A;McIntyre N S .[J].Journal of Physical Chemistry,1993,97(42):11020.
[9] Champarnaud-Mesiard J C;Blanchandin S;Thomas P;Mirgorodsky A Merle-Mejean T Frit B .[J].Journal of Physics and Chemistry of Solids,2000,61(09):1499.
[10] Arena F;Parmaliana A .[J].Journal of Physical Chemistry,1996,100(51):19994.
[11] Ueda W;Moro-oka Y;Ikawa T .[J].Journal of Catalysis,1981,70(02):409.
[12] Ueda W;Moro-oka Y;Ikawa T.[J].Chemistry Letters,1982(04):483.
[13] Barrault J;Batiot C;Magaud L;Ganne M .[J].Studies in Surface Science and Catalysis,1997,110:375.
[14] Gaigneaux E M;Naud J;Ruiz P;Delmon B .[J].Studies in Surface Science and Catalysis,1997,110:185.
[15] Gaigneaux E M;Dieterie M;Ruiz P;Mestl G Delmon B .[J].Journal of Physical Chemistry B,1998,102(51):10542.
[16] Gaigneaux E M;Ruiz P;Wolf E E;Delmon B .[J].Applied Sueface Science,1997,121:552.
[17] Gaigneaux E M;Ruiz P;Delmon B .[J].Catalysis Today,1996,32(1-4):37.
[18] Gaigneaux E M;Tsiakaras P E;Herla D;Ghenne L Ruiz P Delmon B .[J].Catalysis Today,1997,33(1-3):151.
[19] Meunier F C;Yasmeen A;Ross J R H .[J].Catalysis Today,1997,37(01):33.
[20] Abello MC.;Ferretti O.;Gomez MF. .Mo/gamma-Al2O3 catalysts for the oxidative dehydrogenation of propane. Effect of Mo loading[J].Applied Catalysis, A. General: An International Journal Devoted to Catalytic Science and Its Applications,2001(1/2):421-431.
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