| pH值对水热法制备ZnGa2O4粉体的影响 |
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| 引用本文： | 李朝建,黄可龙,全玉,张学英,赵学辉.pH值对水热法制备ZnGa2O4粉体的影响[J].功能材料与器件学报,2006,12(5):456-460. |
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| 作者姓名： | 李朝建 黄可龙 全玉 张学英 赵学辉 |
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| 作者单位： | 中南大学化学化工学院功能材料化学研究所,长沙,410083;中国铝业河南分公司研究所,郑州,450041 |
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| 摘 要： | 采用水热法制备了ZnGa2O4纳米粉体,使用XRD、SEM、TEM及AFM对不同pH值条件下产物的结构及微观形貌进行了表征.结果表明pH值调节严重影响ZnGa2O4的晶相及粒度:当pH≥7.5时,可得到纯相的ZnGa2O4纳米粉体;随着pH的增加,晶胞参数增加,所得样品的平均粒径不断减小,其粒径范围为6～11nm,发射峰位置在450nm左右.所得样品的晶型很完整,GaO(OH)为细长棒状,ZnGa2O4晶粒为四方形和圆形.
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| 关 键 词： | pH值 ZnGa2O4 水热合成 纳米 |
| 文章编号： | 1007-4252（2006）05-456-05 |
| 收稿时间： | 2005-10-19 |
| 修稿时间： | 2006-02-23 |
Effect of pH value on ZnGa2O4 nanoparticles prepared under hydrothermal route |
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| LI Zhao-jian,HUANG Ke-long,QUAN Yu,ZHANG Xue-ying,ZHAO Xue-hui.Effect of pH value on ZnGa2O4 nanoparticles prepared under hydrothermal route[J].Journal of Functional Materials and Devices,2006,12(5):456-460. |
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| Authors: | LI Zhao-jian HUANG Ke-long QUAN Yu ZHANG Xue-ying ZHAO Xue-hui |
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| Abstract: | The nano-crystalline ZnGa_2O_4 spinels were synthesized with GaO(OH) and ZnO by hydrothermal synthesis.The samples were characterized by XRD,SEM,TEM and AFM.The result shows that pH values signifieantly influence the crystal-phase and size of ZnGa_2O_4 prepared by the hydro thermal reaction.When pH is bigger than or equal to 7.5,the pure ZnGa_2O_4 nano-powder may be obtained.The lattice parameter increases with the pH increasing.The sizes of samples are 6-11nm,and emission peak of ZnGa_2O_4 is at 450nm.The shape of samples is quite perfect,GaO(OH) is needlelike nanorystal particle and ZnGa_2O_4 is cubic or octahedral in appearance. |
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| Keywords: | pH value ZnGa2O4 hydrothermal nanometer |
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