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ÎÊÌâ2£¬XRDÖÐÈç´Ë±íÊöÊÇ·ñÇ¡µ±£¬it should be noted that the characteristic peaks of catalyst became wider and weaker because the grain size of the catalyst is very small, short-range order and long-range disorder, indicating that --- species disperse in monolayers or amorphous phase on the surface of carrier.   Èç¹û¿ÉÒÔÊÇ·ñÓÐÎÄÏ×Ö§³Ö¡£
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