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Synthesis of ultrafine zeolites by dry-gel conversion without any organic additive
Hu, D.1,2; Xia, Q. -H.1,2; Lu, X. -H.1,2; Luo, X. -B.1,2; Liu, Z. -M.3
关键词Inorganic Compounds Microporous Materials Nanostructures Chemical Synthesis Crystal Growth
刊名MATERIALS RESEARCH BULLETIN
2008-12-01
DOI10.1016/j.materresbull.2008.01.008
43期:12页:3553-3561
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Technology
类目[WOS]Materials Science, Multidisciplinary
研究领域[WOS]Materials Science
关键词[WOS]NUCLEATION PERIOD ; CRYSTALLIZATION ; TPA-SILICALITE-1 ; NANOCRYSTALS ; CRYSTALS
英文摘要ZSM-5, mordenite, cancrinite and Y zeolites were successfully crystallized by the dry-gel conversion (DGC) without any organic additive (or template), in which the crystal Particles of ZSM-5. mordenite and Y zeolite were well controlled in the range of Ultrafine size. With a molar ratio of SiO(2)/Al(2)O(3) <= 40, the pure ZSM-5 zeolite was obtained at 170 degrees C at the Na(2)O/SiCi(2) molar ratio <0.2, but the pure mordenite wits formed at 150 degrees C at the Na(2)O/SiO(2) molar ratio >0.25. When the dry-gel with a composition of 5.0Na(2)O:Al(2)O(3):5.0SiO(2) was crystallized at 140 degrees C for 24 h, pure cancrinite phase was obtained, TEM images showed that thus-crystallized zeolites consisted of ultrafine particles ranging 35-150 nm for ZSM-5, 50-200 nm for mordenite and 120-200 nm for zeolite Y, respectively. Different from ZSM-5. mordenite and cancrinite zeolites, the DGC synthesis of Y zeolite required more water in the dry-gel before crystallization. (C) 2008 Elsevier Ltd. All rights reserved.
语种英语
WOS记录号WOS:000261361900045
引用统计
被引频次:24[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/140806
专题中国科学院大连化学物理研究所
作者单位1.Hubei Univ, Minist Educ, Key Lab Synth & Applicat Organ Funct Mol, Wuhan 430062, Peoples R China
2.Hubei Univ, Sch Chem & Chem Engn, Wuhan 430062, Peoples R China
3.Chinese Acad Sci, Dalian Inst Chem Phys, Grp 803, Dalian 116023, Peoples R China
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Hu, D.,Xia, Q. -H.,Lu, X. -H.,et al. Synthesis of ultrafine zeolites by dry-gel conversion without any organic additive[J]. MATERIALS RESEARCH BULLETIN,2008,43(12):3553-3561.
APA Hu, D.,Xia, Q. -H.,Lu, X. -H.,Luo, X. -B.,&Liu, Z. -M..(2008).Synthesis of ultrafine zeolites by dry-gel conversion without any organic additive.MATERIALS RESEARCH BULLETIN,43(12),3553-3561.
MLA Hu, D.,et al."Synthesis of ultrafine zeolites by dry-gel conversion without any organic additive".MATERIALS RESEARCH BULLETIN 43.12(2008):3553-3561.
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