| 双钙钛矿型La2CuMnO6的化学溶液法合成和结构表征 |
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| 引用本文： | 马高峰,张国防,杨伟波,李成山,阎果,卢亚锋. 双钙钛矿型La2CuMnO6的化学溶液法合成和结构表征[J]. 材料导报, 2009, 23(4) |
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| 作者姓名： | 马高峰 张国防 杨伟波 李成山 阎果 卢亚锋 |
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| 作者单位： | 陕西师范大学化学与材料科学学院应用表面与胶体化学教育部重点实验室,西安,710062;西北有色金属研究院,西安,710016 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 利用化学溶液法制备了La2CuMnO6氧化物粉体和块材,并与固态反应法所制得的样品作了比较.利用热重分析(TG)对化学溶液法前驱体混合物的热分解过程进行研究,确定了预分解温度;利用X射线衍射(XRD)和扫描电子显微镜(SEM)对两种方法合成的La2CuMnO6氧化物的相组成和形貌结构进行了表征.结果表明,选择合适的前驱体La(CH3COO)3·1.5H2O、Cu(CH3COO)2·1.0H2O、Mn(CH3COO)2·4.0H2O,利用化学溶液法可以在较低温度和较短时间热处理得到单相的La2CuMnO6氧化物,其晶粒平均尺寸约为200nm.
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| 关 键 词： | La2CuMnO6 化学溶液法 合成 结构表征 |
Chemical Solution Synthesis and Structural Characterization of Double Perovskite-type Oxide La_2CuMnO_6 |
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| MA Gaofeng,ZHANG Guofang,YANG Weibo,LI Chengshan,YAN Guo,LU Yafeng. Chemical Solution Synthesis and Structural Characterization of Double Perovskite-type Oxide La_2CuMnO_6[J]. Materials Review, 2009, 23(4) |
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| Authors: | MA Gaofeng ZHANG Guofang YANG Weibo LI Chengshan YAN Guo LU Yafeng |
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| Affiliation: | 1 Key Laboratory of Applied Surface and Colloid Chemistry of Ministry of Education;School of Chemistry & Materials Science;Shaanxi Normal University;Xi'an 710062;2 Northwest Institute for Nonferrous Metal Research;Xi'an 710016 |
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| Abstract: | The chemical solution route is employed to synthesize powder and bulk samples of La2CuMnO6 oxide in air and the as-synthesized samples are compared with those prepared by the solid state reaction route.The thermogravimetric(TG)analysis is employed to investigate the pyrolysis process of precursor gel for the chemical solution route.X-ray diffraction(XRD)and scanning electron microscopy(SEM)are performed to study the phase composition and microstructure of samples prepared by two kinds of methods.The results... |
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| Keywords: | La2CuMnO6 |
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