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题名: Textural manipulation of mesoporous materials for hosting of metallic nanocatalysts
作者: Sun, Junming1;  Bao, Xinhe1
通讯作者: 包信和
关键词: heterogeneous catalysis ;  mesoporous materials ;  metal nanoparticles ;  template synthesis
刊名: CHEMISTRY-A EUROPEAN JOURNAL
发表日期: 2008
DOI: 10.1002/chem.200800823
卷: 14, 期:25, 页:7478-7488
收录类别: SCI
文章类型: Review
部门归属: 5
项目归属: 502
产权排名: 1;1
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Multidisciplinary
研究领域[WOS]: Chemistry
英文摘要: The preparation and stabilization of nanoparticles are becoming very crucial issues in the field of so-called "nanocatalysis". Recent developments in supramolecular self-assembled porous materials have opened a new way to get nanoparticles hosted in the channels of such materials. In this paper, a new approach towards monodisperse and thermally stable metal nanoparticles by confining them in ordered mesoporous materials is presented, and three aspects are illustrated. Firstly, the recent progress in the functional control of rnesoporous materials will be briefly introduced, and the rational tuning of the textures, ore size, and pore length is demonstrated by controlling supramolecular self-assembly behavior. A novel synthesis of short-pore mesoporous materials is emphasized for their easy mass transfer in both biomolecule absorption and the facile assembly of metal nanocomposites within their pore channels. In the second part, the different routes for encapsulating monodisperse nanoparticles inside channels of porous materials are discussed, which mainly includes the ion-exchange/conventional incipient wetness impregnation, in situ encapsulation routes, organometallic methodologies, and surface functionalization schemes. A facile in situ autoreduction route is highlighted to get monodisperse metal nanoparticles with tunable sizes inside the channels of mesoporous silica. Finally, confinement of mesoporous materials is demonstrated to improve the thermal stability of monodisperse metal nanoparticles catalysts and a special emphasis will be focused on the stabilization of the metal nanoparticles with a low Tammann temperature. Several catalytic reactions concerning the catalysis of nanoparticles will be presented. These uniform nanochannels, which confine monodisperse and stable metal nanoparticles catalysts, are of great importance in the exploration of size-dependent catalytic chemistry and further understanding the nature of catalytic reactions.
关键词[WOS]: SITU REDUCTION ROUTE ;  GOLD NANOPARTICLES ;  CATALYTIC-ACTIVITY ;  CO OXIDATION ;  PLATINUM NANOPARTICLES ;  PORE-SIZE ;  MESOSTRUCTURED SILICA ;  ETHYLENE-EPOXIDATION ;  MELTING TEMPERATURE ;  TRIBLOCK COPOLYMERS
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000259079400009
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/100647
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China

Recommended Citation:
Sun, Junming,Bao, Xinhe. Textural manipulation of mesoporous materials for hosting of metallic nanocatalysts[J]. CHEMISTRY-A EUROPEAN JOURNAL,2008,14(25):7478-7488.
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