Synthesis of strong acidic mesoporous materials by ultrasonic sol-gel method

	Synthesis of strong acidic mesoporous materials by ultrasonic sol-gel method
	Xiong, GX ; Yao, N ; Han, W ; Sheng, SS ; Yang, WS
刊名	chinese journal of catalysis
	2005-09-01
卷号	26 期号:9 页码:759-764
关键词	sol-gel method mesoporous material platinum strong acidity 1-hexene hydrolsomerization
英文摘要	mesoporous materials with large pore size are much in demand for the reactions involving large molecules. however, their applications are limited by the weak acidity as compared with that of microporous zeolites. in this paper, a novel method was developed to synthesize strong acidic mesoporous materials. cheap inorganic salts were used to synthesize zr- and ti-modified silica-alumina mesoporous materials and supported pt electron-acid bifunctional mesoporous materials by ultrasonic sol-gel method without any types of templates or pore-regulating agents. the samples were characterized by pyridine adsorption and desorption, ir spectroscopy, xps and h-2-tpr. their catalytic performance was evaluated by using hydroisomerization reaction of 1-hexene. pyridine adsorption-desorption and ir spectroscopy indicate that these samples have strong surface acidity. the xps and h-2-tpr results suggest that the interactions between platinum and the supports exist in the samples. hydroisomerization reaction of 1-hexene shows that the samples have high catalytic activity. it is concluded that their strong surface acidity results from the interactions between metal and the supports.
WOS标题词	science & technology ; physical sciences ; technology
类目[WOS]	chemistry, applied ; chemistry, physical ; engineering, chemical
研究领域[WOS]	chemistry ; engineering
关键词[WOS]	metal-oxides ; alumina ; stability ; templates ; catalysts ; 1-hexene ; titania
收录类别	SCI
语种	英语
WOS记录号	WOS:000232474800009
公开日期	2015-11-10
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/139738]
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
作者单位	1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China 2.Hong Kong Univ Sci & Technol, Dept Chem Engn, Kowloon, Hong Kong, Peoples R China 3.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Xiong, GX,Yao, N,Han, W,et al. Synthesis of strong acidic mesoporous materials by ultrasonic sol-gel method[J]. chinese journal of catalysis,2005,26(9):759-764.
APA	Xiong, GX,Yao, N,Han, W,Sheng, SS,&Yang, WS.(2005).Synthesis of strong acidic mesoporous materials by ultrasonic sol-gel method.chinese journal of catalysis,26(9),759-764.
MLA	Xiong, GX,et al."Synthesis of strong acidic mesoporous materials by ultrasonic sol-gel method".chinese journal of catalysis 26.9(2005):759-764.