Piperazine as a versatile organic structure-directing agent for zeolite synthesis: effect of SiO2/Al2O3 ratio on phase selectivity
文献类型：期刊论文
| 作者 | Bai, Luyi1,2; Xiong, Zhiping1,3; Li, Shuang2; Zhan, Ensheng1; Shen, Wenjie1 |
| 刊名 | JOURNAL OF MATERIALS SCIENCE
 |
| 出版日期 | 2019-05-01 |
| 卷号 | 54期号:10页码:7589-7602 |
| ISSN号 | 0022-2461 |
| DOI | 10.1007/s10853-019-03433-8 |
| 通讯作者 | Zhan, Ensheng(eszhan@dicp.ac.cn) ; Li, Shuang(shuangli722@126.com) |
| 英文摘要 | The synthesis of aluminosilicate zeolites by using piperazine as the organic structure-directing agent was studied. Under optimized conditions, zeolites ZSM-4 (MAZ), mordenite (MOR), ZSM-35 (FER), ZSM-5 (MFI) and ZSM-12 (MTW) were obtained in pure phase. The effect of SiO2/Al2O3 ratio in the initial gel on zeolite phase selectivity was systematically investigated. The SiO2/Al2O3 ratio ranges for the formation of each zeolite had been established. At low SiO2/Al2O3 ratios, ZSM-4 (SiO2/Al2O3 = 9) and mordenite (SiO2/Al2O3 = 12.8) could be obtained, while ZSM-35 (14.3 <= SiO2/Al2O3 <= 29.3), ZSM-5 (SiO2/Al2O3 = 58.7) and ZSM-12 (SiO2/Al2O3 = 117.2) gradually evolved as the SiO2/Al2O3 ratio increased. Piperazine was considered to have a charge-compensatory role when the amine group was protonated; its overall effectiveness depended on the zeolite structure. Piperazine fitted best with the FER structure, and the obtained FER zeolite had a hierarchical house of card texture which was assembled by the primary plate-shaped crystals. The ZSM-4, mordenite and ZSM-35 zeolites (in acidic form) were tested for the dimethyl ether carbonylation reaction; the essential role of 12-member ring (12MR) pore in mordenite for molecule transportation to the 8MR pore was proved by comparing to ZSM-4 that lacks interconnectivity between 12MR and 8MR pores. |
| WOS关键词 | MAGADIITE CONVERSION METHOD ; HIGH-SILICA MORDENITE ; HYDROTHERMAL SYNTHESIS ; DIMETHYL ETHER ; METHYL ACETATE ; SMALL AMINES ; CRYSTALLIZATION ; CRYSTALS ; TETRAMETHYLAMMONIUM ; ALUMINOPHOSPHATES |
| 资助项目 | Natural Science Foundation of China[21773229] ; Natural Science Foundation of China[21878244] |
| WOS研究方向 | Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000460069500015 |
| 出版者 | SPRINGER |
| 资助机构 | Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/165808]  |
| 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 |
| 通讯作者 | Li, Shuang; Zhan, Ensheng |
| 作者单位 | 1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China 2.Northwest Univ, Sch Chem Engn, Xian 710069, Shaanxi, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Bai, Luyi,Xiong, Zhiping,Li, Shuang,et al. Piperazine as a versatile organic structure-directing agent for zeolite synthesis: effect of SiO2/Al2O3 ratio on phase selectivity[J]. JOURNAL OF MATERIALS SCIENCE,2019,54(10):7589-7602. |
| APA | Bai, Luyi,Xiong, Zhiping,Li, Shuang,Zhan, Ensheng,&Shen, Wenjie.(2019).Piperazine as a versatile organic structure-directing agent for zeolite synthesis: effect of SiO2/Al2O3 ratio on phase selectivity.JOURNAL OF MATERIALS SCIENCE,54(10),7589-7602. |
| MLA | Bai, Luyi,et al."Piperazine as a versatile organic structure-directing agent for zeolite synthesis: effect of SiO2/Al2O3 ratio on phase selectivity".JOURNAL OF MATERIALS SCIENCE 54.10(2019):7589-7602. |
入库方式： OAI收割
来源：大连化学物理研究所
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