针对超细银粉制备工艺中易于团聚等现象，对离子液体介质中银粉制备工艺进行了研究。将离子液体加入到硝酸银溶液中，在不同工艺条件下进行还原，并对所制备的银粉采用X射线衍射、扫描电镜进行结构表征，利用激光粒度仪分析了所制备银粉的粒径及粒度分布。结果表明离子液体的加入量对银粉的形貌、结晶状态以及粒度分布有较大影响，在100 mL的AgNO3(0.05 mol/L)，1 g PVP，10 mL离子液体，油浴温度120℃条件下制得的银粉性能最优。
In order to protect the ultrafine silver powder from the agglomeration, the preparation process of silver powder in ionic liquid was studied. The ionic liquid was mixed with silver nitrate solution and reduced under different conditions. The structure, surface morphology, particle size and size distribution of the silver samples were studied by XRD, SEM and laser particle size analyzer. The results showed that adding quantity of ionic liquids has a great influence on the morphology, crystallization and particle size distribution. The best performance of silver powder can be obtained under the process conditions:100 mL AgNO3 (0.05 mol/L), 1 g PVP, 10 mL ionic liquids, and reaction at 120℃.
参考文献
| [1] | 何发泉,李勇军.银粉的用途和制备[J].中国粉体技术,2001(03):45-47. |
| [2] | 黄富春,李文琳,熊庆丰,李晓龙,晏廷懂,余伟,张红斌,刘继松.高径厚比片状银粉的制备[J].贵金属,2012(02):30-35. |
| [3] | 彭子飞;汪国忠;张立德 .用银氨配离子还原法制备纳米银[J].材料研究学报,1997,11(01):104-106. |
| [4] | Kreibig U;Vollmer M.Optical properties of metal clusters[M].Berlikn:Springer-Verlag,1995:1-2. |
| [5] | 蒋惠亮,徐光年,方云,陈明清,陆路德.纳米技术与纳米材料（Ⅶ）--无机纳米材料的制备、性能及表征[J].日用化学工业,2004(01):57-61. |
| [6] | 王丽华,王平.离子液体的应用研究[J].广西轻工业,2009(10):33-34. |
| [7] | 张英锋,李长江,包富山,张永安.离子液体的分类、合成与应用[J].化学教育,2005(02):7-12. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%