作者: Hiroshi Kodama , Hiroshi Okamoto
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摘要: A cerium-zirconium mixed oxide with improved heat resistance of the specific surface area at a high temperature (1000° C.) is provided along manufacturing method therefor. This comprises spherical particles 5 to 20 nm in size and rodlike diameter 150 length, preferably has pore volume 0.3 cm 3 /g or more 35 m 2 after hours treatment 1000° C.