Effect of Preparation Techniques of LaFeO3 Perovskite-Type Oxide on Its Surface Morphologies
Effect of Preparation Techniques of LaFeO3 Perovskite-Type Oxide on Its Surface Morphologies
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DOI：
10.2109/jcersj2.115.640
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发表时间：
2007
影响因子：
1.1
通讯作者：
M. Furukawa;Iseya Takuji;Shunichi Itoh;A. Anzai;Keiko Sato;M. Kurihara;M. Sakamoto;H. Aono;Y. Sadaoka;S. Hamakawa;Yasushi Hoshi;F. Mizukami
中科院分区：
文献类型：
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作者：
M. Furukawa;Iseya Takuji;Shunichi Itoh;A. Anzai;Keiko Sato;M. Kurihara;M. Sakamoto;H. Aono;Y. Sadaoka;S. Hamakawa;Yasushi Hoshi;F. Mizukami
采用Fe (III) La（III）异核配位聚合物La[Fe (CN) 6] - nh2o热分解法制备的钙钛矿型氧化物LaFeO 3的表面形貌与两种常规法制备方法(Fe (OH) 3 + La(OH) 3}共沉淀前驱体热解法制备的LaFeO 3表面形貌进行了比较。在1273 K时，第一种方法得到了亚微米级孔隙高度有序的LaFeO 3。在相同温度下，分别通过固相反应和共沉淀法得到了从纳米到微米大小的LaFeO 3颗粒和高度烧结的LaFeO 3。
Surface morphology of perovskite-type oxide, LaFeO 3 , prepared by thermal decomposition of Fe (III) La (III) heteronuclear coordination polymer, La[Fe (CN) 6 ] -nH 2 O, was compared with those of LaFeO 3 obtained by two conventional preparation methods, solid-state reaction of Fe 2 O 3 and La 2 O 3 and pyrolysis of a co-precipitated {Fe (OH) 3 + La(OH) 3 } precursor. At 1273 K, the first method gave LaFeO 3 with submicrometer-sized pores being highly ordered. At the same temperature, the LaFeO 3 particles with various sizes from nano-to micrometer in diameter and the highly sintered LaFeO 3 were obtained by solid state reaction and co-precipitation method, respectively.