Preparation of Boehmite Sol Employed for Formation of Alumina-Layer over Various Plates with the Dip-Coating

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Formation of boehmite sol from aluminum isopropoxide in aqueous solution was examined with XRD and solid state NMR to reveal that the hydrolysis of the isopropoxide was completed within a rather short reaction time of 1 h while a longer reaction time of 24 h had been employed in the typical preparation procedure. Although it had been mentioned that <I>γ</I>-alumina was formed from the calcination of boehmite at 1073 K, it was suggested that <I>η</I>-alumina, not <I>γ</I>-type, was obtained after the calcination, based on XRD analyses. In order to develop the employment of boehmite sol as the precursor material, the layer of active alumina and its precursor was formed with the dip-coating technique on glass, stainless steel, magnesia and <I>α</I>-alumina plates to show that approximately 1 <I>μ</I>m layers were uniformly formed on glass and stainless steel plates while thickness of the layer formed on magnesia and <I>α</I>-alumina was not estimated due to the reflection of uneven plates of those oxides.

収録刊行物

  • Journal of chemical engineering of Japan

    Journal of chemical engineering of Japan 36(9), 1095-1100, 2003-09-01

    公益社団法人 化学工学会

参考文献:  17件中 1-17件 を表示

被引用文献:  1件中 1-1件 を表示

各種コード

  • NII論文ID(NAID)
    10013414473
  • NII書誌ID(NCID)
    AA00709658
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    00219592
  • NDL 記事登録ID
    6731048
  • NDL 雑誌分類
    ZP1(科学技術--化学・化学工業)
  • NDL 請求記号
    Z53-R395
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
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