DC Field | Value | Language |
---|---|---|
dc.contributor.author | Min, Kyungmin | ko |
dc.contributor.author | Choi, Chang-Hyuck | ko |
dc.contributor.author | Kim, Myoung Yeob | ko |
dc.contributor.author | Choi, Min-Kee | ko |
dc.date.accessioned | 2015-04-08T02:26:29Z | - |
dc.date.available | 2015-04-08T02:26:29Z | - |
dc.date.created | 2015-03-03 | - |
dc.date.created | 2015-03-03 | - |
dc.date.created | 2015-03-03 | - |
dc.date.issued | 2015-01 | - |
dc.identifier.citation | LANGMUIR, v.31, no.1, pp.542 - 550 | - |
dc.identifier.issn | 0743-7463 | - |
dc.identifier.uri | http://hdl.handle.net/10203/195454 | - |
dc.description.abstract | A template-free synthesis method for mesoporous and macro-/mesoporous hierarchically porous silicates with remarkable structural tunability and complexity is presented. SiO2 nanocolloids having diameters of 3.0-29 nm were prepared as a primary building block by using extended Stober synthesis, and they were subsequently assembled by an aerosol-assisted drying. The silica pore structure can be rationally controlled depending on the initial diameter of SiO2 colloids and the aerosol-assembly temperature that determines the packing density of SiO2 colloids (i.e., amounts of packing defects) in the resultant materials. The present method could produce mesoporous silica spheres with remarkable pore-structural tunability (291 < BET surface area <807 m(2) g(-1), 0.42 < pore volume <0.92 cm(3) g(-1), 3.1 < pore size <26 nm). Hierarchically porous materials can also be synthesized by the evaporation-induced phase separation of solvent medium during the aerosol-assisted assembly of SiO2 colloids. By adding aluminum and Pt precursors into the SiO2 colloid suspensions before the aerosol-assisted assembly, mesoporous aluminosilicates supporting uniform Pt nanoclusters (similar to 2 nm) can also be synthesized. This indicates that the synthesis strategy can be used for the direct synthesis of functional silicate materials. | - |
dc.language | English | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.title | Aerosol-Assisted Controlled Packing of Silica Nanocolloids: Templateless Synthesis of Mesoporous Silicates with Structural Tunability and Complexity | - |
dc.type | Article | - |
dc.identifier.wosid | 000348085900068 | - |
dc.identifier.scopusid | 2-s2.0-84921395667 | - |
dc.type.rims | ART | - |
dc.citation.volume | 31 | - |
dc.citation.issue | 1 | - |
dc.citation.beginningpage | 542 | - |
dc.citation.endingpage | 550 | - |
dc.citation.publicationname | LANGMUIR | - |
dc.identifier.doi | 10.1021/la504098b | - |
dc.contributor.localauthor | Choi, Min-Kee | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordPlus | MOLECULAR-SIEVES | - |
dc.subject.keywordPlus | FACILE SYNTHESIS | - |
dc.subject.keywordPlus | PORE-SIZE | - |
dc.subject.keywordPlus | CATALYSTS | - |
dc.subject.keywordPlus | DESIGN | - |
dc.subject.keywordPlus | SBA-15 | - |
dc.subject.keywordPlus | MCM-41 | - |
dc.subject.keywordPlus | HYDROISOMERIZATION | - |
dc.subject.keywordPlus | HYDROCRACKING | - |
dc.subject.keywordPlus | HYDROGENATION | - |
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