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, Zhiping2,3; Zhan, Ensheng2; Li, Shuang1; Shen, Wenjie2 |
| 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 |
| WOS研究方向 | Materials Science |
| WOS类目 | Materials Science, Multidisciplinary |
| 语种 | 英语 |
| WOS记录号 | WOS:000460069500015 |
| 出版者 | SPRINGER |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2372676 |
| 专题 | 大连化学物理研究所 |
| 通讯作者 | Zhan, Ensheng; Li, Shuang |
| 作者单位 | 1.Northwest Univ, Sch Chem Engn, Xian 710069, Shaanxi, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, 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,Zhan, Ensheng,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,Zhan, Ensheng,Li, Shuang,&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. |
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来源：大连化学物理研究所
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