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Abstract:
采用溶胶-凝胶(Sol-Gel)法成功制备了(La,Y)2O3-Mo超细粉末,利用XRD、TEM对还原后粉末相结构、形貌、粒度等进行了分析.结果表明:900℃二次还原后,钼以单质形式存在,稀土以氧化物形式存在.TEM观察表明,还原后稀土钼粉末粒径在70 nm左右,粒度分析表明粉末D(n,50)=80 nm.红外光谱(FT-IR)分析表明,镧和钇通过氧与钼键合,削弱Mo=O键,使稀土钼复合氧化物可还原性增强.能谱分析显示烧结体中稀土元素分布均匀.
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中国有色金属学报
ISSN: 1004-0609
Year: 2004
Issue: 5
Volume: 14
Page: 820-824
Cited Count:
WoS CC Cited Count: 0
SCOPUS Cited Count:
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count: 9
Chinese Cited Count:
30 Days PV: 2
Affiliated Colleges: