Highly hydrothermally stable FePO4-SBA-15 synthesized using a novel one-pot hydrothermal method

	Highly hydrothermally stable FePO4-SBA-15 synthesized using a novel one-pot hydrothermal method
	Wang, Runqin 1,3; Lin, Ronghe 1; Ding, Yunjie 1,2; Liu, Jia 1,3; Luo, Wenting 1,3; Du, Hong 1,3; Lu, Yuan 1
刊名	chinese journal of catalysis
	2015-03-01
卷号	36 期号:3 页码:446-453
关键词	Iron phosphate SBA-15 Mesoporous material Hydrothermal stability Steam Metal loading
英文摘要	the hydrothermal stability of fepo4-sba-15 synthesized using a novel one-pot hydrothermal method (op) was systematically investigated using two methods: treatment with pure steam at 800 degrees c or with boiling water at 100 degrees c. the structural changes in the samples were monitored using small angle x-ray diffraction and n-2-physisorption methods. it was found that the hydrothermal stabilities of op samples remained high and showed little difference over the fepo4-doping range 5-40 wt%. these results differ from previous reports that the loading of heterogeneous metal atoms significantly influences the hydrothermal stability of the host ordered mesoporous material. for comparison, the hydrothermal stabilities of fepo4-sba-15 synthesized using an impregnation method (imp) and commercially obtained sba-15 were also studied. the order of the sample hydrothermal stabilities was op > imp >> sba-15. the formed fepo4 protective layers helped to prevent mesostructure degradation during hydrothermal treatment, therefore modified samples showed superior hydrothermal stabilities compared with pure sba-15. the superior performance of op samples over imp samples is mainly attributed to the formation of stable si-o-fe bonds and more micropores in op samples. (c) 2015, dalian institute of chemical physics, chinese academy of sciences. published by elsevier b.v. all rights reserved.
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]	mesoporous materials ; temperature synthesis ; catalytic-activity ; oxy-bromination ; silica sba-15 ; stability ; mcm-41 ; methane ; improvement
收录类别	SCI
语种	英语
WOS记录号	WOS:000351029200026
公开日期	2016-05-09
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/146085]
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, Dalian Natl Lab Clean Energy, Dalian 116023, Liaoning, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Liaoning, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Wang, Runqin,Lin, Ronghe,Ding, Yunjie,et al. Highly hydrothermally stable FePO4-SBA-15 synthesized using a novel one-pot hydrothermal method[J]. chinese journal of catalysis,2015,36(3):446-453.
APA	Wang, Runqin.,Lin, Ronghe.,Ding, Yunjie.,Liu, Jia.,Luo, Wenting.,...&Lu, Yuan.(2015).Highly hydrothermally stable FePO4-SBA-15 synthesized using a novel one-pot hydrothermal method.chinese journal of catalysis,36(3),446-453.
MLA	Wang, Runqin,et al."Highly hydrothermally stable FePO4-SBA-15 synthesized using a novel one-pot hydrothermal method".chinese journal of catalysis 36.3(2015):446-453.