Effect of Lanthanum Addition on Thermal Stability and Benzene Removal Activity of Iron Oxide/Alumina Composite Powders (特集 機能性酸化物材料) Effect of Lanthanum Addition on Thermal Stability and Benzene Removal Activity of Iron Oxide/Alumina Composite Powders

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We investigated the effect of La addition on thermal stability and benzene removal activity of iron oxide/alumina composite powder catalyst. La addition to alumina support improved the surface area stability and the total catalytic removal conversion of benzene after heat treatment. The solid state reaction in La-added catalyst was complicated: γ-Al<SUB>2</SUB>O<SUB>3</SUB>, LaFeAl<SUB>11</SUB>O<SUB>19</SUB>, LaAlO<SUB>3</SUB> and α-Al<SUB>2</SUB>O<SUB>3</SUB> appeared in this system. It was found that Fe/La/Al<SUB>2</SUB>O<SUB>3</SUB> with high surface area was better catalyst for benzene removal at moderate temperature even when heated at 1000-1100°C. Also we discussed that La modification increased surface active sites as well as oxygen storage capacity.

We investigated the effect of La addition on thermal stability and benzene removal activity of iron oxide/alumina composite powder catalyst. La addition to alumina support improved the surface area stability and the total catalytic removal conversion of benzene after heat treatment. The solid state reaction in La-added catalyst was complicated: γ-Al<SUB>2</SUB>O<SUB>3</SUB>, LaFeAl<SUB>11</SUB>O<SUB>19</SUB>, LaAlO<SUB>3</SUB> and α-Al<SUB>2</SUB>O<SUB>3</SUB> appeared in this system. It was found that Fe/La/Al<SUB>2</SUB>O<SUB>3</SUB> with high surface area was better catalyst for benzene removal at moderate temperature even when heated at 1000-1100°C. Also we discussed that La modification increased surface active sites as well as oxygen storage capacity.

収録刊行物

  • 粉体および粉末冶金

    粉体および粉末冶金 59(2), 80-84, 2012-02-15

    Japan Society of Powder and Powder Metallurgy

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各種コード

  • NII論文ID(NAID)
    10030479845
  • 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
    023549546
  • NDL 請求記号
    Z17-274
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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