Filter and buffer-pot confinement effect of hollow sphere catalyst for promoted activity and enhanced selectivity

	Filter and buffer-pot confinement effect of hollow sphere catalyst for promoted activity and enhanced selectivity
	Sun, Jian 1; Xing, Chuang 1; Xu, Hengyong 2; Meng, Fanqiong 2; Yoneyama, Yoshiharu 1; Tsubaki, Noritatsu 1
刊名	journal of materials chemistry a
	2013
卷号	1 期号:18 页码:5670-5678
通讯作者	noritatsutsubaki
产权排序	2,3
英文摘要	to efficiently utilize the catalyst active sites and simultaneously enhance target hydrocarbon selectivity in fischer-tropsch synthesis (fts), herein, we demonstrate a promising co-al2o3 hollow-sphere catalyst prepared by a two-pot route including hydrothermal carbonization and wet impregnation. benefiting by plentiful mesopores on the shell, reactants could access the cavity inside and the active sites on the inner surface for further fts reaction. compared with conventional solid catalyst, the hollow structure provided a "buffer-pot" effect, where feed gas and preliminary product from the shell could mix completely at a low flow rate. heavy hydrocarbons were further confined, leading to enhanced formation of lighter c-5-c-11 components, which more readily escaped out through the mesoporous shell, which thus played a "filter" role. additionally, increased acidity on the shell generated more iso-paraffins and olefins in the final product. this concept displayed a great superiority in improving active metal activity and selective production from multiple products compared with conventional supported catalysts.
学科主题	物理化学
WOS标题词	science & technology ; physical sciences ; technology
类目[WOS]	chemistry, physical ; energy & fuels ; materials science, multidisciplinary
研究领域[WOS]	chemistry ; energy & fuels ; materials science
关键词[WOS]	fischer-tropsch synthesis ; mesoporous gamma-alumina ; facile synthesis ; cobalt oxide ; nanoparticles ; stability ; size ; al
收录类别	SCI
语种	英语
WOS记录号	WOS:000317584700027
公开日期	2013-10-11
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/117671]
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.Toyama Univ, Sch Engn, Dept Appl Chem, Toyama 930, Japan 2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian, Peoples R China
推荐引用方式 GB/T 7714	Sun, Jian,Xing, Chuang,Xu, Hengyong,et al. Filter and buffer-pot confinement effect of hollow sphere catalyst for promoted activity and enhanced selectivity[J]. journal of materials chemistry a,2013,1(18):5670-5678.
APA	Sun, Jian,Xing, Chuang,Xu, Hengyong,Meng, Fanqiong,Yoneyama, Yoshiharu,&Tsubaki, Noritatsu.(2013).Filter and buffer-pot confinement effect of hollow sphere catalyst for promoted activity and enhanced selectivity.journal of materials chemistry a,1(18),5670-5678.
MLA	Sun, Jian,et al."Filter and buffer-pot confinement effect of hollow sphere catalyst for promoted activity and enhanced selectivity".journal of materials chemistry a 1.18(2013):5670-5678.