Mesoporous aluminosilicates with ordered hexagonal structure, strong acidity, and extraordinary hydrothermal stability at high temperatures
文献类型：期刊论文
| 作者 | Zhang, ZT ; Han, Y ; Xiao, FS ; Qiu, SL ; Zhu, L ; Wang, RW ; Yu, Y ; Zhang, Z ; Zou, BS ; Wang, YQ ; Sun, HP ; Zhao, DY ; Wei, Y |
| 刊名 | JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
 |
| 出版日期 | 2001 |
| 卷号 | 123期号:21页码:5014 |
| 关键词 | MOLECULAR-SIEVE MCM-41 ZEOLITE SILICA FRAMEWORK RAMAN AL SPECTROSCOPY IMPROVEMENT NUCLEATION |
| ISSN号 | 0002-7863 |
| 通讯作者 | Xiao, FS: Jilin Univ, Dept Chem, Changchun 130023, Peoples R China. |
| 中文摘要 | Highly ordered hexagonal mesoporous aluminosilicates (MAS-5) with uniform pore sizes have been successfully synthesized from assembly of preformed aluminosilcate precursors with cetyltrimethylammonium bromide (CTAB) surfactant. The aluminosilicate precursors were obtained by heating, at 100-140 degreesC for 2-10 h. aluminasilica gels at the Al2O3/SiO2/TEAOH/H2O molar ratios of 1.0/7.0-350/10.0-33.0/500-2000. Mesoporous MAS-5 shows extraordinary stability both in boiling water (over 300 h) and in steam (800 degreesC for 2 h). Temperature-programmed desorption of ammonia shows that the acidic strength of MAS-5 is much higher than that of MCM-41 and is comparable to that of microporous Beta zeolite. In catalytic cracking of 1,3,5-triisopropylbenzene and alkylation of isobutane with butene. MAS-5 exhibits greater catalytic activity and selectivity, as compared with MCM-41 and HZSM-5. The MAS-5 samples were characterized with infrared, UV-Raman, and NMR spectroscopy and numerous other techniques. The results suggest that MAS-5 consists of both mesopores and micropores and that the pore walls of MAS-5 contain primary and secondary structural building units, similar to those of microporous zeolites. Such unique structural features might be responsible for the observed strong acidity and high thermal stability of the mesoporous aluminosilicates with well-ordered hexagonal symmetry. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-18 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/41905]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Zhang, ZT,Han, Y,Xiao, FS,et al. Mesoporous aluminosilicates with ordered hexagonal structure, strong acidity, and extraordinary hydrothermal stability at high temperatures[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,2001,123(21):5014. |
| APA | Zhang, ZT.,Han, Y.,Xiao, FS.,Qiu, SL.,Zhu, L.,...&Wei, Y.(2001).Mesoporous aluminosilicates with ordered hexagonal structure, strong acidity, and extraordinary hydrothermal stability at high temperatures.JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,123(21),5014. |
| MLA | Zhang, ZT,et al."Mesoporous aluminosilicates with ordered hexagonal structure, strong acidity, and extraordinary hydrothermal stability at high temperatures".JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 123.21(2001):5014. |
入库方式： OAI收割
来源：物理研究所
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