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지식나눔

지식나눔

sol-gel process?

2002-05-31 org.kosen.entty.User@482ee7a6 박수범(parksb0703)
  • 2
SiO2, Al2O3 의 sol-gel process에 관해서 문의 드립니다.
  • sol-gel
지식의 출발은 질문, 모든 지식의 완성은 답변! 
각 분야 한인연구자와 현업 전문가분들의 답변을 기다립니다.
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    이성재님의 답변

    2002-05-31
    • 0
    >SiO2, Al2O3 의 sol-gel process에 관해서 문의 드립니다. Papers: Preparation of sol-gel derived SiO2 and Al2O3 layers with designed nanoporosity. Ayral etc, Materials Transactions (2001), 42(8), 1641-1646. The sol-gel process was used to prep. nanoporous (typically micro- and mesoporous) supported layers from silica and alumina sols. The control of aging time for silica gel layers, the investigations of new alumina hydrosols, and the general use of removable templating mesophases are crucial parameters to produce layers exhibiting nonconventional porosity. Microstructure of Al2O3-SiO2 composite membranes prepared by sol-gel technique. Wei, Qi, Peop. Rep. China. Guisuanyan Xuebao (2001), 29(4), 392-396. Al2O3-SiO2 composite membranes were prepd. by sol-gel method. The influence of chem. compn. and sintering temp. on the phase compn., chem. structure and micropore structures of composite membranes were studied by XRD, FT- IR and BET. The results show that with decreasing SiO2, the phase compn. of the composite membranes sintered at 600°C changes from pure amorphous phase to coexistence of amorphous phase and nanometer-scale g-Al2O3 crystallites. Preparation and characterization of sol-gel-derived unsupported Al2O3-SiO2 composite membranes. Wei, Qi etc, Journal of Alloys and Compounds (2001), 325(1-2), 223-229. The synthesis of unsupported Al2O3-SiO2 composite membranes has been achieved by controlling hydrolysis and condensation of aluminum iso-propoxide and tetra-Et silicate under acidic conditions. The phase transformation and pore structural evolution of composite membranes are investigated by X-ray diffraction and nitrogen adsorption measurement, resp. foreign sites: http://optoweb.fis.uniroma2.it/opto/solgel/ http://www.bell- labs.com/org/physicalsciences/projects/solgel/solgel.html http://www.solgel.com/ http://www.chemat.com/html/solgel.html domestic sites: http://www.clicktechnology.co.kr/forum/src/fr_rcmain.html? mode=view&secid=1881 http://phys.suwon.ac.kr/~jgyoon/lab/solgel.htm
    답변수정
    >SiO2, Al2O3 의 sol-gel process에 관해서 문의 드립니다. Papers: Preparation of sol-gel derived SiO2 and Al2O3 layers with designed nanoporosity. Ayral etc, Materials Transactions (2001), 42(8), 1641-1646. The sol-gel process was used to prep. nanoporous (typically micro- and mesoporous) supported layers from silica and alumina sols. The control of aging time for silica gel layers, the investigations of new alumina hydrosols, and the general use of removable templating mesophases are crucial parameters to produce layers exhibiting nonconventional porosity. Microstructure of Al2O3-SiO2 composite membranes prepared by sol-gel technique. Wei, Qi, Peop. Rep. China. Guisuanyan Xuebao (2001), 29(4), 392-396. Al2O3-SiO2 composite membranes were prepd. by sol-gel method. The influence of chem. compn. and sintering temp. on the phase compn., chem. structure and micropore structures of composite membranes were studied by XRD, FT- IR and BET. The results show that with decreasing SiO2, the phase compn. of the composite membranes sintered at 600°C changes from pure amorphous phase to coexistence of amorphous phase and nanometer-scale g-Al2O3 crystallites. Preparation and characterization of sol-gel-derived unsupported Al2O3-SiO2 composite membranes. Wei, Qi etc, Journal of Alloys and Compounds (2001), 325(1-2), 223-229. The synthesis of unsupported Al2O3-SiO2 composite membranes has been achieved by controlling hydrolysis and condensation of aluminum iso-propoxide and tetra-Et silicate under acidic conditions. The phase transformation and pore structural evolution of composite membranes are investigated by X-ray diffraction and nitrogen adsorption measurement, resp. foreign sites: http://optoweb.fis.uniroma2.it/opto/solgel/ http://www.bell- labs.com/org/physicalsciences/projects/solgel/solgel.html http://www.solgel.com/ http://www.chemat.com/html/solgel.html domestic sites: http://www.clicktechnology.co.kr/forum/src/fr_rcmain.html? mode=view&secid=1881 http://phys.suwon.ac.kr/~jgyoon/lab/solgel.htm
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    김덕양님의 답변

    2002-06-03
    • 0
    뭐라고 말씀드리기 뭐하네요. 대신 이 분야에서 바이블이라고 일컬어지는 책을 소개드리도록 하겠습니다. 저는 SiO2, Al-doped SiO2 sol-gel process 를 전공중인 학생입니다. Sol-Gel Science: The Physics and Chemistry of Sol-Gel Processing by C. Jeffrey Brinker, George W. Scherer (Editor), J. Brinker, G. Scherrer (Contributor) Hardcover: 908 pages ; Dimensions (in inches): 1.84 x 9.28 x 6.37 Publisher: Academic Press; ISBN: 0121349705; (May 1990) 다음번에 질문하실때는 왜 sol-gel process 를 하시려고 하시는지부터 밝혀주시면 답변드릴때 도움이 될 것 같습니다.
    답변수정
    뭐라고 말씀드리기 뭐하네요. 대신 이 분야에서 바이블이라고 일컬어지는 책을 소개드리도록 하겠습니다. 저는 SiO2, Al-doped SiO2 sol-gel process 를 전공중인 학생입니다. Sol-Gel Science: The Physics and Chemistry of Sol-Gel Processing by C. Jeffrey Brinker, George W. Scherer (Editor), J. Brinker, G. Scherrer (Contributor) Hardcover: 908 pages ; Dimensions (in inches): 1.84 x 9.28 x 6.37 Publisher: Academic Press; ISBN: 0121349705; (May 1990) 다음번에 질문하실때는 왜 sol-gel process 를 하시려고 하시는지부터 밝혀주시면 답변드릴때 도움이 될 것 같습니다.
    등록된 댓글이 없습니다.
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