セリア-ジルコニア固溶体の酸素貯蔵能に及ぼすセリウムイオン及びジルコニウムイオンの規則配列の影響

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タイトル別名
  • Effect of Ordered Arrangement of Ce and Zr Ions on Oxygen Storage Capacity of Ceria-Zirconia Solid Solution

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The CeO2-ZrO2 solid solution is the most important oxygen storage/release material for use in automobile catalysts. In particular, the ceria-zirconia solid solution with a pyrochlore structure exhibits the highest oxygen storage capacity (OSC). In this study, CeO2-ZrO2 solid solutions containing Y2O3 were synthesized and their OSCs were measured to clarify the influence of an ordered arrangement of Ce and Zr ions on the OSC. As a result of this study, it is concluded that an ordered arrangement of Ce and Zr ions markedly improves the OSC of CeO2-ZrO2 solid solutions.<br>

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