| 沉淀法制备氧化镍纳米晶 |
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| 引用本文： | 吴东辉,章忠秀,汪信. 沉淀法制备氧化镍纳米晶[J]. 功能材料, 2005, 36(6): 906-907 |
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| 作者姓名： | 吴东辉 章忠秀 汪信 |
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| 作者单位： | 南通大学,化学化工学院,江苏,南通,226007;南京理工大学,材料化学实验室,江苏,南京,210094;南通大学,化学化工学院,江苏,南通,226007;南京理工大学,材料化学实验室,江苏,南京,210094 |
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| 基金项目： | 国家自然科学基金资助项目(50372028) |
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| 摘 要： | 以Ni(NO3)2和(NH2)2CO3为原料，在水溶液中反应得Ni2(OH)2CO3前驱体，前驱体经400℃热解可得平均粒径为20．3nm无团聚的纳米NiO粉体。经XRD分析可知无Ni、Ni2O3等衍射峰存在，同时将实验结果与乙醇溶液中草酸盐沉淀法及水溶液中NH2HCO3作沉淀剂所得产物进行了比较，并分析了水溶液中(NH2)2CO3沉淀法的优点。
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| 关 键 词： | 氧化镍 纳米晶 沉淀 热解 |
| 文章编号： | 1001-9731(2005)06-0906-02 |
| 修稿时间： | 2004-11-01 |
Preparation of nanocrystalline of NiO by precipitation method |
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| WU Dong-Hui,ZHANG Zhong-xiu,WANG Xin. Preparation of nanocrystalline of NiO by precipitation method[J]. Journal of Functional Materials, 2005, 36(6): 906-907 |
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| Authors: | WU Dong-Hui ZHANG Zhong-xiu WANG Xin |
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| Affiliation: | WU Dong-hui~1,2,ZHANG Zhong-xiu1,WANG Xin2 |
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| Abstract: | Nano-NiO powder was prepared by thermal decomposition of the precursor of Ni_2(OH)_2CO_3 obtained via chemical reaction between Ni(NO_3)_2 and (NH_4)_2CO_3 in water solvent.Experiment results showed that the NiO particles were non-agglomerated and well dispersed with the average size of 20.3nm.In addition,there were no diffraction peaks of Ni and Ni_2O_3 from XRD measurements.Compared with oxalate precipitation method in ethanol solvent or NH_4HCO_3 precipitation method in water solvent,it was found that (NH_4)_2CO_3 precipitation method in water solvent had many advantages,and the mechanisms were also discussed. |
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| Keywords: | nickel oxide nano-crystalline precipitation decomposition |
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