干旱区生态环境知识资源中心(Arid): Desert Rose MCM-22 microsphere: Synthesis, formation mechanism and alkylation performance

Arid

DOI	10.1016/j.micromeso.2021.110910
	Desert Rose MCM-22 microsphere: Synthesis, formation mechanism and alkylation performance
	Cao, Shiwei; Shang, Yunshan; Liu, Yasheng; Wang, Jie; Sun, Yu; Gong, Yanjun; Mo, Guang; Li, Zhihong; Liu, Ping
通讯作者	Gong, YJ (corresponding author), China Univ Petr, State Key Lab Heavy Oil Proc, Key Lab Catalysis CNPC, Beijing, Peoples R China. ; Li, ZH (corresponding author), Chinese Acad Sci, Inst High Energy Phys, Beijing Synchrotron Radiat Lab, Beijing, Peoples R China.
来源期刊	MICROPOROUS AND MESOPOROUS MATERIALS
ISSN	1387-1811
EISSN	1873-3093
出版年	2021
卷号	315
英文摘要	A Desert Rose MCM-22 microsphere is achieved by combination of a gemini quaternary ammonium (C-1(8-)6-(6) or C6-6-6) surfactant in HMI growth mixture. This specific MCM-22 microsphere appears about 2 mu m in diameter, which is vortically assembled by hexagonal nanosheets with 200 nm long and 5-20 nm thick. The synergistic effect between C6-6-6/C18-6-6 and HMI is significant for controlling the flakelet crystal growth and forming the desert rose-like shaped morphology. This work focuses on fundamental nucleation and crystallization of zeolites, especially, the effect of C18-6-6/C6-6-6 on the structural morphology and properties. Typically, C-6-6-6 preferentially interacts with aluminosilicate species, allowing slow depolymerization of silicon species and crystal nucleation, and promoting exfoliation of the interlayer by connecting with Al site on the surface. This rose-like shaped MCM-22 zeolite exhibits high benzene conversion (30-32%) and ethylbenzene selectivity (similar to 90%) in the reaction of benzene and ethylene, which should be attributed to its lamellar structure with large surface area and mesoporous property, exposing more accessible acid sites than conventional MCM-22. Above all, our findings demonstrate a facile and effective route to directly synthesize thinner MWW-type materials, which may prove to be more broadly applicable to other layered zeolites.
英文关键词	MWW zeolite Dual-template Desert rose-shaped morphology SAXS Alkylation of benzene with ethylene
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000620267600001
WOS类目	Chemistry, Applied ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/351148
作者单位	[Cao, Shiwei; Shang, Yunshan; Liu, Yasheng; Wang, Jie; Sun, Yu; Gong, Yanjun] China Univ Petr, State Key Lab Heavy Oil Proc, Key Lab Catalysis CNPC, Beijing, Peoples R China; [Mo, Guang; Li, Zhihong] Chinese Acad Sci, Inst High Energy Phys, Beijing Synchrotron Radiat Lab, Beijing, Peoples R China; [Liu, Ping] Chinese Acad Sci, Inst Coal Chem, State Key Lab Coal Convers, Taiyuan, Peoples R China
推荐引用方式 GB/T 7714	Cao, Shiwei,Shang, Yunshan,Liu, Yasheng,et al. Desert Rose MCM-22 microsphere: Synthesis, formation mechanism and alkylation performance[J],2021,315.
APA	Cao, Shiwei.,Shang, Yunshan.,Liu, Yasheng.,Wang, Jie.,Sun, Yu.,...&Liu, Ping.(2021).Desert Rose MCM-22 microsphere: Synthesis, formation mechanism and alkylation performance.MICROPOROUS AND MESOPOROUS MATERIALS,315.
MLA	Cao, Shiwei,et al."Desert Rose MCM-22 microsphere: Synthesis, formation mechanism and alkylation performance".MICROPOROUS AND MESOPOROUS MATERIALS 315(2021).