| 溶胶-凝胶微波加热合成Ca_(2.7)La_(0.3)Co_4O_9前驱粉 |
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| 引用本文： | 李燕,张丽鹏,于先进,葛志伟. 溶胶-凝胶微波加热合成Ca_(2.7)La_(0.3)Co_4O_9前驱粉[J]. 现代技术陶瓷, 2010, 31(2): 8-10 |
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| 作者姓名： | 李燕 张丽鹏 于先进 葛志伟 |
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| 作者单位： | 1. 山东三林集团,淄博,255000
2. 山东理工大学化学工程学院,淄博,255049 |
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| 基金项目： | 国家自然科学基金，山东省自然科学基金，山东省高等学校科技计划项目，山东省中青年科学家奖励基金，山东省淄博市科学技术发展计划项目 |
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| 摘 要： | 以硝酸钙、硝酸钴、硝酸镧和柠檬酸等为原料,用溶胶-凝胶法制备出凝胶,在100℃下烘干,然后用微波炉加热,合成了Ca2.7La0.3Co4O9前驱粉体。讨论了微波合成参数对粉体晶相和晶粒度的影响。用X射线衍射仪(XRD)、扫描电子显微镜(SEM)对制备的粉体进行了测试。结果表明,溶胶-凝胶结合微波加热法可以在较短的时间内制得Ca2.7La0.3Co4O9粉体,且晶形发育比常规加热更完善。微波高火加热20min,可得到纯相的Ca2.7La0.3Co4O9前驱粉。
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| 关 键 词： | Ca2.7La0.3Co4O9 溶胶-凝胶 微波加热 |
Synthesis of Ca2.7La0.3Co4O9 Precursor Powders by Sol-gel and Microwace Heating Method |
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| Li Yan,Zhang Lipeng,Yu Xianjin,Ge Zhiwei. Synthesis of Ca2.7La0.3Co4O9 Precursor Powders by Sol-gel and Microwace Heating Method[J]. Advanced Ceramics, 2010, 31(2): 8-10 |
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| Authors: | Li Yan Zhang Lipeng Yu Xianjin Ge Zhiwei |
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| Affiliation: | Li Yan Zhang Lipeng Yu Xianjin Ge Zhiwei(School of Chemical Engineering,Shandong University of Technology,Zibo 255049) |
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| Abstract: | In this paper,Ca2.7La0.3Co4O9 powders were prepared by microwave heating method.The gel was prepared by sol-gel using calcium nitrate,cobalt nitrate,lanthanum nitrate and citric acid as raw materials.The gel was dried at 100 ℃.The influence of microwave synthesis parameters on the crystallite phase and crystallite size of Ca2.7La0.3Co4O9 powders were studied.The powders were characterized by X-ray diffraction（XRD）and scanning electron microscopy（SEM）.The results showed that pure phase Ca2.7La0.3Co4O9 precursor powders are prepared by microwave heating for 20 min in high-fire,and the crystal grains of the powders grow ideally. |
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| Keywords: | Ca2.7La0.3Co4O9 |
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