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Organophosphorous surfactant-assistant synthesis of SAPO-34 molecular sieve with special morphology and improved MTO performance

文献类型：期刊论文

作者Wang, Chan1,2,3; Yang, Miao1,2; Zhang, Wenna1,2,3; Su, Xiong1,2,3; Xu, Shutao1,2; Tian, Peng1,2; Liu, Zhongmin1,2
刊名RSC ADVANCES
出版日期2016
卷号6期号:53页码:47864-47872
ISSN号2046-2069
DOI10.1039/c6ra06428k
文献子类Article
英文摘要With the aid of self-designed organophosphorous surfactant [2-(diethoxylphosphono)propyl] hexadecyldimethylammonium bromide (DPHAB), SAPO-34s with various special morphologies have been hydrothermally synthesized by using tetraethylammonium hydroxide (TEAOH), diethylamine (DEA) and triethylamine (TEA) as templates, respectively. The synthesized SAPO-34s were well characterized by XRD, XRF, SEM, N-2 adsorption-desorption, solid state NMR and NH3-TPD measurements. The status of DPHAB was also investigated by using FT-IR, C-13 NMR, TG-DTA and P-31 NMR measurements as well as density functional theory calculations. It is found that the addition of DPHAB changes the crystal morphology dramatically and the aggregation degree of the crystals increases with the rising DPHAB/H3PO4 ratio. Moreover, microporous templates play an important role in the synthesis of mesoporous SAPO-34. TEAOH, which has the strongest interaction energy with the CHA framework among the investigated templates, shows the best cooperating ability with an organophosphorous surfactant to direct the formation of nanosized and mesoporous SAPO-34. The prepared SAPO-34s showed improved catalytic properties in the methanol-to-olefins (MTO) reaction.
WOS关键词CATALYTIC PERFORMANCE ; TEMPLATED SYNTHESIS ; ZEOLITE NANOSHEETS ; DIRECTED SYNTHESIS ; OLEFINS REACTION ; METHANOL ; CONVERSION ; SELECTIVITY ; ISOMERIZATION ; NANOCRYSTALS
WOS研究方向Chemistry
语种英语
WOS记录号WOS:000377253400078
出版者ROYAL SOC CHEMISTRY
源URL[http://cas-ir.dicp.ac.cn/handle/321008/170618]  
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Tian, Peng; Liu, Zhongmin
作者单位1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Dalian, Peoples R China
2.Chinese Acad Sci, Natl Engn Lab Methanol Olefins, Dalian Inst Chem Phys, Dalian, Peoples R China
3.Univ Chinese Acad Sci, Beijing, Peoples R China
推荐引用方式
GB/T 7714		 Wang, Chan,Yang, Miao,Zhang, Wenna,et al. Organophosphorous surfactant-assistant synthesis of SAPO-34 molecular sieve with special morphology and improved MTO performance[J]. RSC ADVANCES,2016,6(53):47864-47872.
APA Wang, Chan.,Yang, Miao.,Zhang, Wenna.,Su, Xiong.,Xu, Shutao.,...&Liu, Zhongmin.(2016).Organophosphorous surfactant-assistant synthesis of SAPO-34 molecular sieve with special morphology and improved MTO performance.RSC ADVANCES,6(53),47864-47872.
MLA Wang, Chan,et al."Organophosphorous surfactant-assistant synthesis of SAPO-34 molecular sieve with special morphology and improved MTO performance".RSC ADVANCES 6.53(2016):47864-47872.

入库方式： OAI收割

来源：大连化学物理研究所

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