DC Field | Value | Language |
---|---|---|
dc.contributor.advisor | Jung, Kyung-Hoon | - |
dc.contributor.advisor | 정경훈 | - |
dc.contributor.author | Kim, Ji-Man | - |
dc.contributor.author | 김지만 | - |
dc.date.accessioned | 2011-12-13T05:00:19Z | - |
dc.date.available | 2011-12-13T05:00:19Z | - |
dc.date.issued | 1995 | - |
dc.identifier.uri | http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=98740&flag=dissertation | - |
dc.identifier.uri | http://hdl.handle.net/10203/32696 | - |
dc.description | 학위논문(석사) - 한국과학기술원 : 화학과, 1995.2, [ ix, 61 p. ] | - |
dc.description.abstract | Mesoporous molecular sieve MCM-41 has been synthesized and characterized using physicochemical techniques, such as XRD, TEM, $^{129}Xe$ NMR, $^{29}Si$ MAS NMR, nitrogen adsorption, etc. MCM-41 was synthesized by hydrothermal reaction of sodium silicate and cetyltrimethylammonium ion. The thermal and hydrothermal stability of the synthesized MCM-41 were investigated by thermal treatment at a given temperature in $O_2$ flow with or without the water bubbling. The formation of MCM-41 from sodium silicate and CTACl in aqueous solution was very sensitive to pH adjustment. It was suggested that the MCM-41 and NaOH are in equilibrium, which shifted by acid titration. That is, the repeated titration of the product NaOH produced in the synthesis with acetic acid to pH $\sim$ 11 shifts the reaction equilibrium toward the formation of MCM-41. Thus, the long-range structural order and textural | eng |
dc.language | eng | - |
dc.publisher | 한국과학기술원 | - |
dc.title | Synthesis and characterization of highly ordered mesoporous molecular sieve, MCM-41 | - |
dc.title.alternative | MCM-41의 합성 및 특성 연구 | - |
dc.type | Thesis(Master) | - |
dc.identifier.CNRN | 98740/325007 | - |
dc.description.department | 한국과학기술원 : 화학과, | - |
dc.identifier.uid | 000933123 | - |
dc.contributor.localauthor | Jung, Kyung-Hoon | - |
dc.contributor.localauthor | 정경훈 | - |
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