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Functional Materials Laboratory, Dept. of Molecular Science & Technology, Ajou University
김 지 만아주대학교응용화학전공기능성물질연구실
http://www.ajou.ac.kr/~fml
Mesoporous 물질의제조와활용Mesoporous 물질의제조와활용
열분해연구회 2003. 4. 4
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Functional Materials Laboratory, Dept. of Molecular Science & Technology, Ajou University
Outline Outline Mesoporous Materials ?
Application Areas
Mesoporous Materials ?
Application Areas
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Functional Materials Laboratory, Dept. of Molecular Science & Technology, Ajou University
Porous Materials in NanoworldPorous Materials in NanoworldMicroporous Mesoporous Macroporous
Pore size / A5 10 50 100 500 1000
Mesoporous Materials
Zeolites
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Functional Materials Laboratory, Dept. of Molecular Science & Technology, Ajou University
8 nm PoreSilica framework
Controllable and large pore size in the range of 2 ~ 30 nm
High surface area ~ 1000 m2/g
MCM-, SBA-, MSU-, KIT-series
Controllable and large pore size in the range of 2 ~ 30 nm
High surface area ~ 1000 m2/g
MCM-, SBA-, MSU-, KIT-series
Mesoporous MaterialsMesoporous Materials
SensorSensorDeviceDevice
AdsorbentAdsorbentCatalystCatalyst
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Functional Materials Laboratory, Dept. of Molecular Science & Technology, Ajou University
Templates for Porous MaterialsTemplates for Porous MaterialsSurfactantSurfactant
HydrophilicHydrophilichydrophobichydrophobic
Micelle
MesoporousMesoporous
Polymer Bead Polymer Bead
MacroporousMacroporous
MoleculesMolecules
Microporous
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Functional Materials Laboratory, Dept. of Molecular Science & Technology, Ajou University
Surfactant in Water Surfactant in Water
H1
V1
L
Liquid phase + crystal
H1: hexagonal
V1: cubic Ia3d
L: lamellar
Tem
pera
ture
, oC
HydrophilicHydrophilic
hydrophobichydrophobic
MCM-41
MCM-48
MCM-50
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Functional Materials Laboratory, Dept. of Molecular Science & Technology, Ajou University
surfactantmicelle micellar rod
hexagonal array
silicate
Remove Template
MesoporousMaterials
Nature, 1992, 359, 710
Mesoporous MaterialsMesoporous MaterialsVariation of synthesis parameters Reactant concentration Synthesis temperature pH of the mixture Nature of surfactant, etc.
Variation of synthesis parameters Reactant concentration Synthesis temperature pH of the mixture Nature of surfactant, etc.
Pore Structure, Morphology & Framework
Pore Structure, Morphology & Framework
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Functional Materials Laboratory, Dept. of Molecular Science & Technology, Ajou University
General Synthesis SchemeGeneral Synthesis Scheme
Dissolution of templates
Addition of inorganic sources
Aging & hydrothermal
heating
PrecipitateFiltration & calcinationMesoporous
material
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Functional Materials Laboratory, Dept. of Molecular Science & Technology, Ajou University
Application ExamplesApplication Examples
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Functional Materials Laboratory, Dept. of Molecular Science & Technology, Ajou University
Stud. Surf. Sci. Catal., 1998, 117, 65
Possible Application AreasPossible Application Areas
SensorSensor
ApplicationsApplications
DeviceDevice
Memory MediaMemory Media
MembraneMembrane
Gas StorageGas Storage
AdsorbentAdsorbent
CatalystCatalyst
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Functional Materials Laboratory, Dept. of Molecular Science & Technology, Ajou University
Grafting Metallocene Complexes onto Mesoporous Silica
Grafting Metallocene Complexes onto Mesoporous Silica
Nature, 1995, 378, 159
Direct grafting of an organometallic complex onto the inner walls of MCM-41 generates a heterogeneous catalyst with a large concentration of accessible, well spaced and structurally well defined active sites.Attachment of a titanocene-derived catalyst precursor to the pore walls of MCM-41 produce a catalyst for the epoxidation of cyclohexene and more bulky cyclic alkenes.
Direct grafting of an organometallic complex onto the inner walls of MCM-41 generates a heterogeneous catalyst with a large concentration of accessible, well spaced and structurally well defined active sites.Attachment of a titanocene-derived catalyst precursor to the pore walls of MCM-41 produce a catalyst for the epoxidation of cyclohexene and more bulky cyclic alkenes.
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Functional Materials Laboratory, Dept. of Molecular Science & Technology, Ajou University
Nanoscale Polymerization Reactors for Polymer Fibers
Nanoscale Polymerization Reactors for Polymer Fibers
Science, 1999, 285, 2113
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Functional Materials Laboratory, Dept. of Molecular Science & Technology, Ajou University
Metal Nanowire Fabrication Metal Nanowire Fabrication
R. Ryoo et al., J. Phys. Chem., 1996, 100, 17718J. M. Kim et al., Chem. Mater., 2000, 12, 2068
Ag Pt
Au
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Functional Materials Laboratory, Dept. of Molecular Science & Technology, Ajou University
Conducting Polyaniline Filaments in Mesoporous Channel
Conducting Polyaniline Filaments in Mesoporous Channel
Science, 1994, 264, 1757
This demonstration of conjugated polymers with mobile charge carriers in nanometer channels represents a step toward the design of nanometer electronic device.
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Functional Materials Laboratory, Dept. of Molecular Science & Technology, Ajou University
Science, 1997, 276, 923.
One end group of the functionalized monolayers is covalently bonded to the silica surface and the other end group can be used to bind heavy metals or other functional molecules. The materials are extremely efficient in removing mercury and other heavy metals from both aqueous and nonaqueous waste streams.
One end group of the functionalized monolayers is covalently bonded to the silica surface and the other end group can be used to bind heavy metals or other functional molecules. The materials are extremely efficient in removing mercury and other heavy metals from both aqueous and nonaqueous waste streams.
Functionalized Monolayer for Environmental and Industrial Applications
Functionalized Monolayer for Environmental and Industrial Applications
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Functional Materials Laboratory, Dept. of Molecular Science & Technology, Ajou University
SBA-15 with different channel sizescan be used for protein separationwhere both size exclusion and ion-exchange chromatography techniquesare employed simultaneously.
SBA-15 with different channel sizescan be used for protein separationwhere both size exclusion and ion-exchange chromatography techniquesare employed simultaneously.
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SBA-15
Si Si Si
O O O
Si
NH2
Protein SeparationProtein Separation
J. Am. Chem. Soc., 1999, 121, 9897standardsolution
14 kD14 kD44 kD
14 kD44 kD77 kD
conalbimin
160Å
59Å
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Functional Materials Laboratory, Dept. of Molecular Science & Technology, Ajou University
Low-loss waveguides Homogenous dye distribution
Mesostructured Waveguides Patterned by Soft LithographyMesostructured Waveguides Patterned by Soft Lithography
These highly processible, self-assembling mesostructured
host media and claddings may have potential for the fabrication of integrated optical circuits.
Science, 2000, 287, 465
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