Solid-state Reaction and Benzene Removal Activities of Composite Powders in Ni-La-Al_2O_3 System

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The Solid-state reaction, sintering and hydrocarbon-removal activities of composite powders in La-Ni-Al<SUB>2</SUB>O<SUB>3</SUB> system were studied toward their application to heat-stable exhaust catalyst. The different routes with the impregnation technique were applied to prepare the composite powders. X-ray diffraction revealed the following solid-state reactions; γ-Al<SUB>2</SUB>O<SUB>3</SUB> (+NiO) + La<SUB>2</SUB>O<SUB>3</SUB> (500°C)→γ-Al<SUB>2</SUB>O<SUB>3</SUB> (+NiO) + LaAlO<SUB>3</SUB> (800-1000°C)→γ-Al<SUB>2</SUB>O<SUB>3</SUB> (+NiO) + LaAlO<SUB>3</SUB> + NiLaAl<SUB>11</SUB>O<SUB>19</SUB> (1000-1100°C). The La-stabilization was effective to retain large surface areas of these composite powders. The C<SUB>6</SUB>H<SUB>6</SUB> removal activities were compared for the Ni-La-Al<SUB>2</SUB>O<SUB>3</SUB>, heated at 800°C and 1000°C. The catalytic performance depended on microstructures in the La-Ni-A1<SUB>2</SUB>O<SUB>3</SUB> composite powders from different routes.

収録刊行物

  • 粉体および粉末冶金

    粉体および粉末冶金 44(11), 1049-1054, 1997-11-15

    Japan Society of Powder and Powder Metallurgy

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各種コード

  • NII論文ID(NAID)
    10002261733
  • NII書誌ID(NCID)
    AN00222724
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    05328799
  • NDL 記事登録ID
    4344277
  • NDL 雑誌分類
    ZP41(科学技術--金属工学・鉱山工学)
  • NDL 請求記号
    Z17-274
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
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