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Highly hydrothermally stable FePO4-SBA-15 synthesized using a novel one-pot hydrothermal method
Wang, Runqin1,3; Lin, Ronghe1; Ding, Yunjie1,2; Liu, Jia1,3; Luo, Wenting1,3; Du, Hong1,3; Lu, Yuan1
关键词Iron Phosphate Sba-15 Mesoporous Material Hydrothermal Stability Steam Metal Loading
刊名CHINESE JOURNAL OF CATALYSIS
2015-03-01
DOI10.1016/S1872-2067(14)60202-3
36期:3页:446-453
收录类别SCI
文章类型Article
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
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.
语种英语
WOS记录号WOS:000351029200026
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文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/146085
专题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
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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.
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