EDS法分析离子交换膜金属复合材料的铂电极厚度  

Platinum Electrode Thickness of Ionic Membrane/Metal Polymer Compositeby EDS Analysis

作　　者：李丰富[1] 张玉军[1] 郑岩[1] 

机构地区：[1]哈尔滨理工大学材料科学与工程学院,黑龙江哈尔滨150040

出　　处：《哈尔滨理工大学学报》2007年第2期138-140,144,共4页Journal of Harbin University of Science and Technology

摘　　要：通过聚乙烯-乙烯醇(EVOH)的磺化反应得到EVOH磺化离子聚合物(EVOH-g- SO_3H),采用溶液铸膜,浸渍-还原、电极化、离子交换等工艺制备了Pt/EVOH-g-SO_3H离子聚合物金属复合材料(IPMC)．利用扫描电子显微镜(SEM)及其附件能谱分析(EDS)分别对IPMC微观形貌、电极厚度进行了分析研究．最后,利用EDS对IPMC横截面的元素分析,建立了IPMC电极厚度估算方法．结果表明:Pt在EVOH-g-SO_3H膜内部呈梯度分散,在膜表面致密沉积,并且铂金属电极分布较为均匀;通过平均值方法估算出电极的厚度为20．94μm．EVOH - g - SO3 H polymer was synthesized by the sulfonated reaction of EVOH and IPMC based on Pt/EVOH - g - SO3H was prepared by processes of casting membrane, permeation - reduction, icon exchange and electric polarization. The morphology and thickness of platinum electrode were characterized by scanning electronic microscope （SEM） and EDS detector attachment to SEM, respectively. At last, a method to calculate electrode thickness was designed with the help of EDS analysis. The results show that Pt in EVOH - g - SO3 H polymer membrane is in the form of gradient dispersion, deposited tightly on the surface of the membrance, and platinum electrode is evenly distributed. The average electrode thickness obtained is 20. 941μm by the average method.

关 键 词：离子交换膜金属复合材料 铂电极 浸渍-还原法 电极厚度 

分 类 号：O632.31[理学—高分子化学]