Influence of the incorporated metal on template removal from MCM-41 type mesoporous materials
作者： Luiz KC de Souza , Juliana JR Pardauil , José R Zamian , Geraldo N da Rocha Filho , Carlos EF da Costa
DOI: 10.1007/S10973-011-1295-1
关键词: Pulmonary surfactant 、 Chemical engineering 、 Degradation (geology) 、 Mass transfer 、 MCM-41 、 Mineralogy 、 Mesoporous material 、 Materials science 、 Thermal stability 、 Phase (matter) 、 Metal
摘要: Al-modified MCM-41, La-modified and Ce-modified MCM-41 mesoporous materials were prepared with different molar ratios (Si/M = 10; 25; 50; 100 200) at room temperature. The characterized using XRD, BET–BJH, TG–DTA. XRD showed four peaks, due to the ordered hexagonal array of parallel silica tubes, which could be indexed as (100), (110), (200), (210), assuming a unit cell. surface area decreased concentration metal incorporated in material increased. thermal stability was around 650 °C. CeO2 phase made mass transfer process more difficult, hindering Hofmann degradation favoring oxidation.
springer.com
sci-hub.se 参考文章(20)
X. Chen, L. Huang, G. Ding, Q. Li, Characterization and catalytic performance of mesoporous molecular sieves Al-MCM-41 materials Catalysis Letters. ,vol. 44, pp. 123- 128 ,(1997) , 10.1023/A:1018968823654
Sandra G. Casuscelli, Griselda A. Eimer, Analia Canepa, Angelica C. Heredia, Carlos E. Poncio, Mónica E. Crivello, Celso F. Perez, Alfredo Aguilar, Eduardo R. Herrero, Ti-MCM-41 as catalyst for α-pinene oxidation: Study of the effect of Ti content and H2O2 addition on activity and selectivity Catalysis Today. ,vol. 133, pp. 678- 683 ,(2008) , 10.1016/J.CATTOD.2007.12.104
Parasuraman Selvam, Suresh K. Bhatia, Chandrashekar G. Sonwane, Recent advances in processing and characterization of periodic mesoporous MCM-41 silicate molecular sieves Industrial & Engineering Chemistry Research. ,vol. 40, pp. 3237- 3261 ,(2001) , 10.1021/IE0010666
Sulene A. Araújo, Antonio S. Araujo, Nedja S. Fernandes, Valter J. Fernandes, Massao Ionashiro, Effect of the catalyst MCM-41 on the kinetic of the thermal decomposition of poly(ethylene terephthalate) Journal of Thermal Analysis and Calorimetry. ,vol. 99, pp. 465- 469 ,(2010) , 10.1007/S10973-009-0490-9
Gerd Grubert, Jirı́ Rathouský, Günter Schulz-Ekloff, Michael Wark, Arnošt Zukal, Reducibility of vanadium oxide species in MCM-41 Microporous and Mesoporous Materials. ,vol. 22, pp. 225- 236 ,(1998) , 10.1016/S1387-1811(98)00088-2
Freddy Kleitz, Wolfgang Schmidt, Ferdi Schüth, Evolution of mesoporous materials during the calcination process: structural and chemical behavior Microporous and Mesoporous Materials. ,vol. 44-45, pp. 95- 109 ,(2001) , 10.1016/S1387-1811(01)00173-1
J. Ryczkowski, J. Goworek, W. Gac, S. Pasieczna, T. Borowiecki, Temperature removal of templating agent from MCM-41 silica materials Thermochimica Acta. ,vol. 434, pp. 2- 8 ,(2005) , 10.1016/J.TCA.2004.12.020
J. Goworek, Agnieszka Kierys, W. Gac, Anna Borówka, R. Kusak, Thermal degradation of CTAB in as-synthesized MCM-41 Journal of Thermal Analysis and Calorimetry. ,vol. 96, pp. 375- 382 ,(2009) , 10.1007/S10973-008-9055-6
R. Kusak, Template transformations in preparation of MCM-41 silica Journal of Thermal Analysis and Calorimetry. ,vol. 79, pp. 555- 560 ,(2005) , 10.1007/S10973-005-0578-9
Qian Zhao, Yehai Xu, Yanhui Li, Tingshun Jiang, Changsheng Li, Hengbo Yin, None, Effect of the Si/Ce molar ratio on the textural properties of rare earth element cerium incorporated mesoporous molecular sieves obtained room temperature Applied Surface Science. ,vol. 255, pp. 9425- 9429 ,(2009) , 10.1016/J.APSUSC.2009.07.046