Fabrication and characterization of the monolithic hydrophobic alumina aerogels
作者: Xueai LiHe HeLili Ren
作者单位: 1Southeast University
刊名: Journal of Porous Materials, 2017, Vol.24 (3), pp.679-683
来源数据库: Springer Journal
DOI: 10.1007/s10934-016-0304-y
关键词: Surface modificationHydrophobic Al2O3 aerogelsTrimethylchlorosilane (TMCS)
英文摘要: The monolithic hydrophobic mesoporous alumina aerogels were successfully synthesized by acid–base sol–gel polymerization of aluminium chloride hexahydrate (AlCl3·6H2O) in deionized water/alcohol solution (v/v = 3:7). To minimize shrinkage during drying, alumina hydrogels were aged in tetraethylorthosilicate (TEOS)/acetonitrile solution, and modified using trimethylchlorosilane (TMCS)/acetonitrile solution. Properties of the final product were examined by contact angle measurement, FTIR, FESEM, TEM and BET analyses. Surface modification was confirmed by FTIR spectroscopy. It was found that hydrophobic property of the alumina aerogels was affected by the contents of TMCS. When the molar ratio of TMCS to AlCl3·6H2O is 0.35, hydrophobic alumina...
原始语种摘要: The monolithic hydrophobic mesoporous alumina aerogels were successfully synthesized by acid–base sol–gel polymerization of aluminium chloride hexahydrate (AlCl3·6H2O) in deionized water/alcohol solution (v/v = 3:7). To minimize shrinkage during drying, alumina hydrogels were aged in tetraethylorthosilicate (TEOS)/acetonitrile solution, and modified using trimethylchlorosilane (TMCS)/acetonitrile solution. Properties of the final product were examined by contact angle measurement, FTIR, FESEM, TEM and BET analyses. Surface modification was confirmed by FTIR spectroscopy. It was found that hydrophobic property of the alumina aerogels was affected by the contents of TMCS. When the molar ratio of TMCS to AlCl3·6H2O is 0.35, hydrophobic alumina...
全文获取路径: Springer  (合作)
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影响因子:1.348 (2012)

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关键词翻译
关键词翻译
  • alumina 矾土
  • monolithic 整体式
  • hydrophobic 疏水的
  • unmodified 非修改
  • hexahydrate 六水合物
  • modification 诱发变异
  • minimize 最小化
  • acetonitrile 乙腈
  • polymerization 聚合酌
  • property 所有权