| NiTiO3纳米晶的溶胶-凝胶制备工艺研究 |
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| 引用本文： | 郝品,黄剑锋,曹丽云,吴建鹏,贺海燕.NiTiO3纳米晶的溶胶-凝胶制备工艺研究[J].人工晶体学报,2010,39(2):336-340. |
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| 作者姓名： | 郝品 黄剑锋 曹丽云 吴建鹏 贺海燕 |
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| 作者单位： | 陕西科技大学材料科学与工程学院,教育部轻化工助剂化学与技术重点实验室,西安,710021 |
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| 基金项目： | 教育部高等学校博士学科点专项科研基金，陕西科技大学科研创新团队资助基金，陕西科技大学研究生创新研究基金 |
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| 摘 要： | 以无机镍盐和钛酸四丁酯为起始原料,采用溶胶-凝胶法制备了NiTiO3纳米晶.采用X射线衍射(XRD)、综合热分析仪(DSC/TG)以及透射电镜(TEM)对制备的纳米晶进行了测试和表征.研究了不同镍源、后处理温度对钛酸镍纳米晶相组成以及显微结构的影响.结果表明:以硝酸镍为起始原料更易获得单一物相的NiTiO3纳米晶;以硝酸镍为原料,乙醇为溶剂,n(柠檬酸):n(Ni2++Ti4+)=1:1,后处理温度为700 ℃为制备NiTiO3纳米晶的最佳工艺条件.由谢乐公式推算得出NiTiO3晶粒生长符合Brook关系式,计算得到晶粒生长活化能为Ea=43.07 kJ/mol.
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| 关 键 词： | NiTiO3 溶胶-凝胶法 纳米晶 |
Study on Preparation Technology of NiTiO_3 Nanocrystallites by Sol-gel Method |
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| HAO Pin,HUANG Jian-feng,CAO Li-yun,WU Jian-peng,HE Hai-yan.Study on Preparation Technology of NiTiO_3 Nanocrystallites by Sol-gel Method[J].Journal of Synthetic Crystals,2010,39(2):336-340. |
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| Authors: | HAO Pin HUANG Jian-feng CAO Li-yun WU Jian-peng HE Hai-yan |
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| Institution: | HAO Pin,HUANG Jian-feng,CAO Li-yun,WU Jian-peng,HE Hai-yan(Key Laboratory of Auxiliary Chemistry & Technology for Chemical Industry,Ministry of Education,School of Materials Science , Engineering,Shaanxi University of Science , Technology,Xi\'an 710021,China) |
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| Abstract: | NiTiO3 nanocrystallites were prepared by Sol-gel method using inorganic nickel salt and tetrabutyl titanate as raw materials.The phase composition and microstructures of the as-prepared nanocrystalline were characterized by X-ray diffraction(XRD),DSC/TG and transmission electron microscopy analysis(TEM).The influence of the raw material types and the calcination temperature on the phases and microstructures of the powders were investigated.The results show that it's easier to obtain pure NiTiO3 nanocrystall... |
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| Keywords: | NiTiO3 |
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