溶剂热法制备高长径比银纳米线工艺探究  

Process Study on Preparation of High Aspect Ratio Silver Nanowires by Solvent Thermal Method

作　　者：郝喜才[1,2] 杨贝 赵鑫玉 HAO Xicai;YANG Bei;ZHAO Xinyu(School of Material and Chemical Engineering,Kaifeng University,Kaifeng 475004,Henan;Henan Engineering Research Center?of Advanced Materials and Green Process,Kaifeng 475004,Henan;School of Food Science and Engineering,Wuhan Polytechnic University,Wuhan 430023,Hubei;Henan Jinbaihe Biotechnology Co.,LTD,Anyang 455000,Henan)

机构地区：[1]开封大学材料与化学工程学院,河南开封475004 [2]河南省先进材料与绿色过程工程技术研究中心,河南开封475004 [3]武汉轻工大学食品科学与工程学院,湖北武汉430023 [4]河南金百合生物科技股份有限公司,河南安阳455000

出　　处：《开封大学学报》2024年第3期87-91,共5页Journal of Kaifeng University

基　　金：河南省科技攻关项目(222102230116)。

摘　　要：采用改进的溶剂热法制备出长径比银纳米线,探讨了前驱物硝酸银浓度、结构导向剂PVP与AgNO_(3)的比值、反应温度、反应时间等工艺条件对银纳米线制备的影响规律,并对其在高长径比银纳米线合成过程中的作用进行了分析讨论。结果表明:在前驱物硝酸银浓度25mmol/L、结构导向剂PVP与AgNO_(3)体积比50:28、反应温度170℃、反应时间150min等工艺参数下,成功制备出均匀性好、平均直径为38.88nm、平均长度超过100μm、长径比超过2500的银纳米线。银纳米线因其具有独特性能,故被视为替代氧化铟锡(ITO)的理想的下一代柔性透明电极材料,在商业化应用中极具潜力。Silver nanowires are considered as the ideal next-generation flexible transparent electrode material to replace indium tin oxide(ITO)due to their unique properties.Silver nanowires with aspect ratio were prepared by using a solvent thermal method.The influence of process conditions such as the concentration of precursor silver nitrate,the ratio of structure directing agent PVP/AgNO_(3),the temperature and time of reaction on the preparation of silver nanowires was investigated,and its role in the synthesis of high aspect ratio silver nanowires was analyzed and discussed.The results showed that under process parameters such as the concentration of precursor silver nitrate 25mmol/L,the volume ratio of structure directing agent PVP to AgNO_(3)50∶28,the temperature of reaction 170℃,and the time of reaction 150 minutes,silver nanowires with good uniformity,average diameter 38.88nm,average length exceeding 100μm,and aspect ratio exceeding 2500 were successfully prepared,providing a material basis for their application in transparent electrode materials and other fields.

关 键 词：溶剂热法 长径比 银 纳米线 

分 类 号：TQ131.2[化学工程—无机化工]