Rational synthesis of Beta zeolite with improved quality by decreasing crystallization temperature in organotemplate-free route

	Rational synthesis of Beta zeolite with improved quality by decreasing crystallization temperature in organotemplate-free route
	Zhang, Haiyan 2; Xie, Bin 2; Meng, Xiangju 1; Mueller, Ulrich 3; Yilmaz, Bilge 4; Feyen, Mathias 3; Maurer, Stefan 3; Gies, Hermann 5; Tatsumi, Takashi 6; Bao, Xinhe 7
刊名	microporous and mesoporous materials
	2013-11-01
卷号	180 页码:123-129
关键词	Beta zeolite Organotemplate-free synthesis Seeds-directed synthesis High crystallinity Framework defects
通讯作者	feng-shou xiao
产权排序	待补充
合作状况	英
英文摘要	beta zeolite as efficient catalyst has been widely used in industrial processes, and its synthesis is normally performed in the presence of tetraethylammonium hydroxide as organic template. recent works show successful organotemplate-free and seed-directed synthesis of beta zeolite (beta-sds) in the presence of beta seeds at 140 degrees c, providing a novel route for synthesizing low-cost zeolite catalysts. notably, in the case for synthesizing beta-sds at 140 degrees c (beta-sds140), the use of seeds is still very high (8-10% in silica source) and impurity of mor zeolite easily appears due to the fast crystallization rate. we demonstrate here a rational synthesis of beta-sds at 120 degrees c (beta-sds120) with pure bea structure and improved zeolite quality in the presence of a very small amount of beta seeds (as low as 1.4%) by decreasing zeolite crystallization rate. x-ray diffraction patterns show that calcination at 550 degrees c for 4 h results in the loss of crystallinity at 8.0% and 15.8% for beta-sds120 and beta-sds140, respectively, suggesting that beta-sds120 has higher thermal stability than beta-sds140. n-2 adsorption isotherms show that beta-sds120 has much higher surface area (655 m(2)/g) and micropore volume (0.25 cm(3)/g) than beta-sds140 (450 m(2)/g, 0.18 cm(3)/g). these phenomena are reasonably assigned to that beta-sds120 samples have much less framework defects such as terminal si-oh groups than beta-sds140. the beta-sds120 samples with good crystallinity, high thermal stability, large surface area and pore volume offer a good opportunity for their industrial applications as efficient and low-cost catalytic and adsorptive materials. (c) 2013 elsevier inc. all rights reserved.
学科主题	物理化学
WOS标题词	science & technology ; physical sciences ; technology
类目[WOS]	chemistry, applied ; chemistry, physical ; nanoscience & nanotechnology ; materials science, multidisciplinary
研究领域[WOS]	chemistry ; science & technology - other topics ; materials science
关键词[WOS]	template-free synthesis ; mas nmr ; tschernichite ; alkylation ; resolution ; catalysts ; topology ; systems ; analog ; ecr-1
收录类别	SCI
资助信息	7，10
原文出处	129
语种	英语
WOS记录号	WOS:000324659200017
公开日期	2014-09-11
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/119248]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
作者单位	1.Zhejiang Univ, Dept Chem, Key Lab Appl Chem Zhejiang Prov, Hangzhou 310028, Zhejiang, Peoples R China 2.Jilin Univ, Coll Chem, Changchun 130012, Peoples R China 3.BASF SE, Chem Res & Engn, D-67056 Ludwigshafen, Germany 4.BASF Corp, Chem Res & Engn, Iselin, NJ 08830 USA 5.Ruhr Univ Bochum, Inst Geol Mineral & Geophys, D-44780 Bochum, Germany 6.Tokyo Inst Technol, Chem Resources Lab, Yokohama, Kanagawa 227, Japan 7.Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian, Peoples R China 8.Dalian Univ Technol, State Key Lab Fine Chem, Dalian, Peoples R China 9.Katholieke Univ Leuven, Ctr Surface Chem & Catalysis, Louvain, Belgium
推荐引用方式 GB/T 7714	Zhang, Haiyan,Xie, Bin,Meng, Xiangju,et al. Rational synthesis of Beta zeolite with improved quality by decreasing crystallization temperature in organotemplate-free route[J]. microporous and mesoporous materials,2013,180:123-129.
APA	Zhang, Haiyan.,Xie, Bin.,Meng, Xiangju.,Mueller, Ulrich.,Yilmaz, Bilge.,...&Xiao, Feng-Shou.(2013).Rational synthesis of Beta zeolite with improved quality by decreasing crystallization temperature in organotemplate-free route.microporous and mesoporous materials,180,123-129.
MLA	Zhang, Haiyan,et al."Rational synthesis of Beta zeolite with improved quality by decreasing crystallization temperature in organotemplate-free route".microporous and mesoporous materials 180(2013):123-129.