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Study of support pore size dependence of silver particle agglomeration by applying ordered porous anodic alumina
Zhao, H; Jiang, ZQ; Zhang, Z; Zhai, RS; Bao, XH
关键词Porous Anodic Alumina Silver Agglomeration Ethylene Epoxiclation
刊名CHINESE JOURNAL OF CATALYSIS
2006-05-01
27期:5页:381-385
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]ETHYLENE OXIDATION ; CATALYSTS ; EPOXIDATION ; XPS
英文摘要Ordered porous alumina films with a controllable pore size were fabricated by anodization and applied to simulate realistic catalyst supports. The support morphology dependence of the silver particle agglomeration on the Ag model catalyst loaded on this ordered porous anodic alumina was studied. Scanning electron microscopy, energy dispersive spectroscopy, transmission electron microscope, X-ray diffraction and X-ray photo-electron spectroscopy were used to characterize the morphologies, compositions, and chemical properties of the model catalyst. When the average pore size of the alumina substrate is smaller than 50 rim, both the agglomeration and the growth of silver particles are suppressed greatly. But when the pore size is bigger than 200 nm, the agglomeration and growth of silver particles occur to some extent, while the confinement effect still exists. This confinement effect can efficiently prevent active components on catalysts from aggregation.
语种英语
WOS记录号WOS:000238200000005
引用统计
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/140210
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, State Key Lab Catalysis, Dalian 116023, Peoples R China
2.Dalian Jiaotong Univ, Sch Environm Sci & Engn, Dalian 116028, Peoples R China
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GB/T 7714
Zhao, H,Jiang, ZQ,Zhang, Z,et al. Study of support pore size dependence of silver particle agglomeration by applying ordered porous anodic alumina[J]. CHINESE JOURNAL OF CATALYSIS,2006,27(5):381-385.
APA Zhao, H,Jiang, ZQ,Zhang, Z,Zhai, RS,&Bao, XH.(2006).Study of support pore size dependence of silver particle agglomeration by applying ordered porous anodic alumina.CHINESE JOURNAL OF CATALYSIS,27(5),381-385.
MLA Zhao, H,et al."Study of support pore size dependence of silver particle agglomeration by applying ordered porous anodic alumina".CHINESE JOURNAL OF CATALYSIS 27.5(2006):381-385.
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