纳米Ag/γ-Al_2O_3的制备及镀液稳定性研究  

Research on preparation of nano Ag/Al_2O_3 and stability of plating bath

作　　者：王珊珊 胡辉[2] 杨旗[2,3] Wang Shanshan Hu Hui Yang Qi(Wuhan Zuoling New Town Development and Investment Co. , Ltd. ,Wuhan 430000 School of Environment Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074 Department of Urban Constrution,Wuchang Shouyi University,Wuhan 430064)

机构地区：[1]武汉左岭新城开发投资有限公司,武汉430000 [2]华中科技大学环境科学与工程学院,武汉430074 [3]武昌首义学院城市建设学院,武汉430064

出　　处：《化工新型材料》2016年第12期220-222,共3页New Chemical Materials

基　　金：湖北省自然科学基金资助项目(2009CDB246);煤燃烧国家重点实验室开放基金资助项目(FSKLCC0810)

摘　　要：以γ-Al_2O_3为载体,采用化学镀法制备纳米Ag/γ-Al_2O_3材料,考察了pH、NH_3·H_2O用量和温度等因素对其镀液稳定性的影响,并采用X射线衍射、场发射电子显微镜和扫描电镜等技术对材料进行表征。结果表明：在pH=10.8~11.3,温度为30℃,NH_3·H_2O用量为30mL,反应时间为2h的条件下制备的纳米Ag/γ-Al_2O_3材料的镀液稳定性和镀层均匀性较佳;载体γ-Al2O3表面镀上了高含量的Ag,其晶粒尺寸为43.28nm,控制在纳米级。γ-Al2O3 -supported nano Ag/γ-Al2O3 materials were prepared by electroless plating and characterized by X-ray diffraction（XRD）, field scan electron microscopy （FSEM）, and scanning electron microscope （SEM） techniques. The effects of pH,ammonia dosage and temperature on stability of plating bath were investigated. The results showed that the stability of plating bath and homogeneity of coating were better when nano Ag/γ-Al2O3 prepared under the condition of pH value between 10.8 and 11.3,30mL of ammonia dosage, and temperature at 30℃. High content silver with the size of 43.28nm was supported ony-A12 03 ,which was controlled in nano size.

关 键 词：纳米Ag/γ-Al2O3 化学镀法 稳定性 影响因素 

分 类 号：TB383.1[一般工业技术—材料科学与工程]