人工影响天气纳米碘化银催化剂的制备及表征  

Preparation and representation of nanometer silver iodide catalyst for artificial weather modification

作　　者：张景红[1,2] 金德镇[2] 刘先黎[3] 连建设[1] 李光玉[1] 江中浩[1] 

机构地区：[1]吉林大学汽车材料教育部重点实验室,长春130022 [2]吉林省人工影响天气办公室,长春130062 [3]吉林大学生物与农业工程学院,长春130022

出　　处：《吉林大学学报（工学版）》2010年第1期77-81,共5页Journal of Jilin University:Engineering and Technology Edition

基　　金：国家自然科学基金项目(50771049)

摘　　要：采用沉淀法在常温常压下制备了纳米碘化银粒子,对试剂含量(硝酸银浓度、碘化钾浓度、络合剂浓度及分散剂浓度等)及工艺条件对纳米碘化银粒子形态的影响进行了研究。利用透射电子显微镜和X-射线衍射仪分析了纳米粒子的微观形貌及相结构。结果表明:纳米碘化银粒子成球形,粒径均匀可控,无明显团聚现象,不同工艺条件下获得的碘化银粒径不同,最大粒径范围在80～90nm,最小粒径范围在25～30nm,因为碘化银具有类冰结构,是最佳成冰物质,故纳米碘化银粒子作为人工影响天气催化剂具有极大的应用前景。Nanometer silver iodide particles were prepared by deposition at room temperature and normal atmosphere. The influences of the contents of reagents （the concentrations of silver nitrate, potassium iodide, complexing agent, dispersant and so on） and the processing conditions on the shape of nanometer silver iodide particles were investigated. The microstructure and pattern of the nanometer particles were observed and analyzed by TEM and SEM. Results show that the nanometer particles are in spherical shape, the size of particles is homogenized and controllable, no agglomeration. The particle size changes with the processing condition;the maximum particle size is in the range of 80-90 nm, and the minimum particle size is in the range of 25-30 nm. The ice performance test in indoor cloud chamber shows that the nanometer silver iodide particles as catalyst for artificial weather modification have great application prospect.

关 键 词：金属材料 纳米AgI 催化剂 人工影响天气 

分 类 号：TG146.3[一般工业技术—材料科学与工程]