β-Al2O3/LaAlO3共晶の高温燃焼触媒への応用

上野 俊吉; 淡野 正信; D. Doni Jayaseelan; 近藤 直樹; 大司 達樹; 神崎 修三

doi:10.2109/jcersj.111.611

Notes

Noble Preparation Route for Combustion Catalyst from β-Al₂O₃/LaAlO₃ Eutectic

Shunkichi UENO, Masanobu AWANO, D. Doni JAYASEELAN, Naoki KONDO, Tatsuki OHJI, Shuzo KANZAKI

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Keywords: Combustion catalyst, β-Al₂O₃/LaAlO₃ eutectic, Mn doped β-Al₂O₃, Chemical etching

JOURNAL FREE ACCESS

2003 Volume 111 Issue 1296 Pages 611-613

DOI https://doi.org/10.2109/jcersj.111.611

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Abstract

The application of a β-Al₂O₃/LaAlO₃ eutectic-based composition for high temperature combustion catalysis has been investigated. Substitution of Al sites by Mn in the β-Al₂O₃/LaAlO₃ eutectic structure occupied 5at% of the total Al sites with no trace of impurity phases. The substitution of Al by Mn in the β-Al₂O₃ phase was more predominant than in the LaAlO₃ phase. The perovskite phase was easily removed by chemical etching and single crystal like porous β-Al₂O₃ was successfully prepared.

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