Confined-space synthesis of hierarchical MgAPO-11 molecular sieves with good hydroisomerization performance
文献类型：期刊论文
| 作者 | Xu, Renshun2; Tao, Shuo1,2; Li, Xiaolei1,2; Gong, Huimin2; Jiang, Qike2; Yu, Wenguang2; Ma, Huaijun2; Tian, Zhijian2 |
| 刊名 | MICROPOROUS AND MESOPOROUS MATERIALS
 |
| 出版日期 | 2018-05-15 |
| 卷号 | 262页码:182-190 |
| ISSN号 | 1387-1811 |
| 关键词 | Molecular Sieve Mgapo-11 Dry-gel Conversion Reversed Crystal Growth Hydroisomerization |
| DOI | 10.1016/j.micromeso.2017.11.041 |
| 文献子类 | Article |
| 英文摘要 | Hierarchical MgAPO-11 molecular sieves with large BET surface areas and high pore volumes have been synthesized via dry-gel conversion of the magnesioaluminophosphate-carbon (MAP-C) composites. The carbon film coated on the mesopores of amorphous magnesioaluminophosphate (MAP) provides a confined-space to restrict the overgrowth of the crystals. The products were well characterized using XRD, SEM, TEM, N-2 adsorption desorption, infrared spectroscopy of pyridine adsorption (Py-IR) and solid-state NMR techniques. The results show that highly mesoporous MgAPO-11 with good crystallinity can be obtained at an appropriate carbon loading amount. The time-dependent study indicates that the formation process of hierarchical MgAPO-11 obeys a reversed crystal growth route: crystallization started on the outer surface of the amorphous precursor, then extended to inward, and finally hierarchical molecular sieves assembled by nanosized crystals with a size of about 50 nm were obtained. The catalyst based on hierarchical MgAPO-11 exhibits a significant higher activity and selectivity than the conventional Pt/MgAPO-11 catalyst in the hydroisomerization of n-dodecane, attributing to its higher acidity and excellent diffusion properties resulting from the hierarchical pore architecture. |
| WOS关键词 | SURFACTANT-DIRECTED SYNTHESIS ; CATALYTIC PERFORMANCE ; IONOTHERMAL SYNTHESIS ; EUTECTIC MIXTURE ; FACILE SYNTHESIS ; SAPO-11 ZEOLITE ; N-DODECANE ; CRYSTALLIZATION ; CONVERSION ; CRYSTALS |
| WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Materials Science |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCIENCE BV |
| WOS记录号 | WOS:000429395200020 |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/169098]  |
| 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, Xiaolei |
| 作者单位 | 1.Liaocheng Univ, Sch Chem & Chem Engn, Shandong Prov Key Lab Chem Energy Storage & Novel, Liaocheng 252059, Shandong, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Dalian 116023, Liaoning, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xu, Renshun,Tao, Shuo,Li, Xiaolei,et al. Confined-space synthesis of hierarchical MgAPO-11 molecular sieves with good hydroisomerization performance[J]. MICROPOROUS AND MESOPOROUS MATERIALS,2018,262:182-190. |
| APA | Xu, Renshun.,Tao, Shuo.,Li, Xiaolei.,Gong, Huimin.,Jiang, Qike.,...&Tian, Zhijian.(2018).Confined-space synthesis of hierarchical MgAPO-11 molecular sieves with good hydroisomerization performance.MICROPOROUS AND MESOPOROUS MATERIALS,262,182-190. |
| MLA | Xu, Renshun,et al."Confined-space synthesis of hierarchical MgAPO-11 molecular sieves with good hydroisomerization performance".MICROPOROUS AND MESOPOROUS MATERIALS 262(2018):182-190. |
入库方式： OAI收割
来源：大连化学物理研究所
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