| Preparation and Charactrization of Fibrous Crystals of Boron-containing MTW-type Zeolite |
| |
| 作者姓名： | 宋茂莹 周伟正 龙英才 |
| |
| 作者单位： | ShanghaiKeyLaboratoryofMolecularCatalysisandInnovativeMaterials,DepartmentofChemistry,FudanUniversity,Shanghai200433,China |
| |
| 基金项目： | Project supported by the National Natural Science Foundation of China (No. 20073010) and The Nano-Materials Foundation of Shanghai (No. 0213NM042). |
| |
| 摘 要： | Fibrous crystals of boron-containing MTW-type zeolite have been hydrothermally synthesized in B2O3-SiO2-HF-H2O gel system at 170℃ in 20 to 28d by using 1,4-diazabicyclo2,2,2]octane (DABCO) and methylamine as the co-template, and characterized with XRD, SEM, TEM, HRTEM and SAED. The results of characterizations show that B atoms are incorporated into the zeolite framework as tetrahedron of B(OSi)4. The fibrous single crystals of 5-50μm in length and 100-500nm in width inter-grow along the c-axis of the zeolite, and the one dimension 12 oxygen ring channels are perpendicular to the fibber axis.
|
| 关 键 词： | 纤维结晶 硼 MTW 硅酸盐 合成 定位 |
Preparation and Charactrization of Fibrous Crystals of Boron-containing MTW-type Zeolite |
| |
| SONG,Mao-Ying ZHOU,Wei-Zheng LONG,Ying-CaiShanghai Key Laboratory of Molecular Catalysis and Innovative Materials.Preparation and Charactrization of Fibrous Crystals of Boron-containing MTW-type Zeolite[J].Chinese Journal of Chemistry,2004,22(2):119-121. |
| |
| Authors: | SONG Mao-Ying ZHOU Wei-Zheng LONG Ying-CaiShanghai Key Laboratory of Molecular Catalysis and Innovative Materials |
| |
| Institution: | SONG,Mao-Ying ZHOU,Wei-Zheng LONG,Ying-Cai*Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials,Department of Chemistry,Fudan University,Shanghai 200433,China |
| |
| Abstract: | Fibrous crystals of boron‐containing MTW‐type zeolite have been hydrothermally synthesized in B2O3‐SiO2‐HF‐H2O gel system at 170 °C in 20 to 28 d by using 1, 4‐diazabicyclo2.2, 2]octane (DABCO) and methylamine as the co‐template, and characterized with XRD, SEM, TEM, HRTEM and SAED. The results of characterizations show that B atoms are incorporated into the zeolite framework as tetrahedron of B(OSi)4. The fibrous single crystals of 5–50 μm in length and 100–500 nm in width inter‐grow along the c‐axis of the zeolite, and the one dimension 12 oxygen ring channels are perpendicular to the fibber axis. |
| |
| Keywords: | MTW zeolite B-ZSM-12 fibrous crystal orientation |
| 本文献已被 CNKI 维普 等数据库收录！ |
|
