| 镧钴氧化物合成的溶胶凝胶形成过程分析 |
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| 引用本文： | 蒋晓瑜,陈文哲. 镧钴氧化物合成的溶胶凝胶形成过程分析[J]. 福建建筑高等专科学校学报, 2009, 0(1): 59-63 |
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| 作者姓名： | 蒋晓瑜 陈文哲 |
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| 作者单位： | [1]福建工程学院环境与设备工程系,福建福州350007 [2]福建工程学院,福建福州350108 [3]福州大学材料科学与工程学院,福建福州350108 |
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| 基金项目： | 福建省自然科学基金计划资助项目（2006J0183）;福建省教育厅A类科技资助项目（JA06033）;福建省产业技术开发专项项目（闽发改投资[2006]781号） |
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| 摘 要： | 着重研究了柠檬酸对溶胶凝胶法合成LaxCo2-xO3-δ的凝胶形成过程的影响,通过分析溶液颜色变化与钴配位环境的关系,阐明溶液体系pH值、陈化时间对凝胶形成的影响作用。根据凝胶的红外谱图分析了凝胶中金属离子与柠檬酸的配位方式,以及论证了凝胶体系是由金属离子与柠檬酸相互连接而形成的网络结构。
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| 关 键 词： | 镧钴氧化物 柠檬酸 溶胶凝胶 合成过程 |
Research on sol-gel process for lanthanum and cobalt oxides synthesis |
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| Jiang Xiaoyu,Chen Wenzhe. Research on sol-gel process for lanthanum and cobalt oxides synthesis[J]. Journal of Fujian College of Architecture & C.E., 2009, 0(1): 59-63 |
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| Authors: | Jiang Xiaoyu Chen Wenzhe |
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| Affiliation: | 1. Environment and Equipment Engineering Department, Fujian University of Technology, Fuzhou 350007, China; 2. College of Materials Science and Engineering, Fuzhou University, Fuzhou 350108, China; 3. Fujian University of Technology, Fuzhou 350108, China) |
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| Abstract: | The effects of citrate sol-gel on the gelating process of LaxCo2-xO3-δ synthesis were studied. The relationship between solution colour and coordinated environment of Co ions, the effect of pH values, keeping temperature and time on the forming of citrate-gel, and the coordination of metal ions with citrate acid were analyzed. The results indicate that the formed through the coordination bonds between metal cations and the citric confirmed by IR-spectrum analysis. |
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| Keywords: | La-Co oxide citric acid sol-gel synthesis process gel network structure is acid molecules, which is |
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