Single isomerization selectivity of glucose in methanol over Sn-BEC zeolite of homogenous Sn distribution

doi:10.1016/j.micromeso.2017.03.052

	Single isomerization selectivity of glucose in methanol over Sn-BEC zeolite of homogenous Sn distribution
	Zhang, Guanqun 3,4; Feng, Pei 1,3; Zhang, Weiping 2; Liu, Hao 4; Wang, Congxin 4; Ma, Huaijun 4; Wang, Donge 4; Tian, Zhijian 4
刊名	MICROPOROUS AND MESOPOROUS MATERIALS
	2017-07-15
卷号	247 页码:158-165
关键词	Sn-zeolite Germanosilicate F-19 Mas Nmr Homogenous Distribution Glucose Isomerization
DOI	10.1016/j.micromeso.2017.03.052
英文摘要	Sn-zeolites are important solid Lewis acid catalysts with wide applications to the conversions of various biomass-derived carbohydrates. As the catalytic center, framework Sn of Sn-zeolites can catalyze glucose isomerization to fructose and epimerization to mannose. In practical use, the main obstacle to the application of Sn-zeolites is the lengthy crystallization. In present work, we developed a rapid synthesis route to Sn-zeolites by incorporating Sn into the germanosilicate framework of BEC zeolite via direct hydrothermal procedure. The synthesis time required by Sn-BEC is tenfold shortened than that by the traditional Sn-zeolites like Sn-Beta. The locations of framework Sn atoms of Sn-BEC were investigated by F-19 MAS NMR and computational modeling, which indicates that the framework Sn sites of Sn-BEC adopt a uniquely homogenous distribution at the T-1 sites. Sn-BEC exhibits high reaction activity and single isomerization selectivity in the glucose conversion in methanol, while Sn-Beta shows both isomerization and epimerization selectivity. The single isomerization selectivity of Sn-BEC suggests the presence of single catalytic center, which is probably caused by the homogenous distribution of framework Sn sites. (C) 2017 Elsevier Inc. All rights reserved.
语种	英语
WOS记录号	WOS:000402947000019
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/152195]
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.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Peoples R China 2.Dalian Univ Technol, State Key Lab Fine Chem, 2 Linggong Rd, Dalian 116024, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Guanqun,Feng, Pei,Zhang, Weiping,et al. Single isomerization selectivity of glucose in methanol over Sn-BEC zeolite of homogenous Sn distribution[J]. MICROPOROUS AND MESOPOROUS MATERIALS,2017,247:158-165.
APA	Zhang, Guanqun.,Feng, Pei.,Zhang, Weiping.,Liu, Hao.,Wang, Congxin.,...&Tian, Zhijian.(2017).Single isomerization selectivity of glucose in methanol over Sn-BEC zeolite of homogenous Sn distribution.MICROPOROUS AND MESOPOROUS MATERIALS,247,158-165.
MLA	Zhang, Guanqun,et al."Single isomerization selectivity of glucose in methanol over Sn-BEC zeolite of homogenous Sn distribution".MICROPOROUS AND MESOPOROUS MATERIALS 247(2017):158-165.