DC Field | Value | Language |
---|---|---|
dc.contributor.author | Song, Lee-Hwa | ko |
dc.contributor.author | Park, SeungBin | ko |
dc.date.accessioned | 2013-03-11T21:31:04Z | - |
dc.date.available | 2013-03-11T21:31:04Z | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.issued | 2010-01 | - |
dc.identifier.citation | JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, v.10, pp.122 - 129 | - |
dc.identifier.issn | 1533-4880 | - |
dc.identifier.uri | http://hdl.handle.net/10203/100356 | - |
dc.description.abstract | The mesoporous undoped and Si-doped alumina were prepared with an ultrasonic spray process, and found to have well-developed mesopore structures and large surface areas. The mesoporous Si-doped alumina has a high thermal stability up to 1473 K. Its surface area and pore volume were found to slowly decrease with increasing temperature. Mesoporous undoped alumina is transformed to gamma-alumina at 1073 K, whereas the amorphous nature of the pore walls of the Si-doped alumina is maintained up to 1073 K. When heat treatment was carried out at 1473 K for 2 h, the mesopore-networks of the undoped alumina collapsed, and then all the pore walls were converted into the a-alumina phase. In contrast, the mesoporosity of the Si-doped alumina persisted during heat treatment, and its pore walls were transformed to gamma-alumina. The decreases in the pore volume of the undoped alumina at 1073 K and 1473 K were found to be 36% and 99% respectively, but for the Si-doped alumina were only 24% and 36% respectively. The surface area of the undoped alumina at 1473 K was found to be 11 m(2)/g but that of the Si-doped samples at the same temperature is higher than 100 m(2)/g. Thus this mesoporous Si-doped alumina can be used as a catalytic support in reactions at high temperatures. | - |
dc.language | English | - |
dc.publisher | AMER SCIENTIFIC PUBLISHERS | - |
dc.subject | CATALYST SUPPORT | - |
dc.subject | GAMMA-ALUMINA | - |
dc.subject | SURFACE-AREA | - |
dc.subject | HYDRODECHLORINATION | - |
dc.subject | 1,2-DICHLOROPROPANE | - |
dc.subject | ADSORPTION | - |
dc.subject | STABILITY | - |
dc.title | Synthesis of High Thermally-Stable Mesoporous Alumina Particles | - |
dc.type | Article | - |
dc.identifier.wosid | 000272388700016 | - |
dc.identifier.scopusid | 2-s2.0-77955067609 | - |
dc.type.rims | ART | - |
dc.citation.volume | 10 | - |
dc.citation.beginningpage | 122 | - |
dc.citation.endingpage | 129 | - |
dc.citation.publicationname | JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | - |
dc.identifier.doi | 10.1166/jnn.2010.1512 | - |
dc.contributor.localauthor | Park, SeungBin | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | Thermally Stable | - |
dc.subject.keywordAuthor | Aerosol Spray Method | - |
dc.subject.keywordAuthor | Alumina | - |
dc.subject.keywordAuthor | Mesoporous | - |
dc.subject.keywordAuthor | Si Doped Alumina | - |
dc.subject.keywordPlus | CATALYST SUPPORT | - |
dc.subject.keywordPlus | GAMMA-ALUMINA | - |
dc.subject.keywordPlus | SURFACE-AREA | - |
dc.subject.keywordPlus | HYDRODECHLORINATION | - |
dc.subject.keywordPlus | 1,2-DICHLOROPROPANE | - |
dc.subject.keywordPlus | ADSORPTION | - |
dc.subject.keywordPlus | STABILITY | - |
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