摘要
在铁表面进行四苯基卟啉（（ＴＰＰ）Ｈ２）蒸汽沉积处理，获得了具有一定耐蚀性的膜层．采用ＸＰＳ、ＳＥＭ和ＳＴＭ技术对成膜过程及膜的结构和组成进行了研究．发现在铁表面上进行（ＴＰＰ）Ｈ２蒸汽沉积处理形成沉积膜时，首先在样品表面形成比较均匀覆盖的基础层．此后，膜的生长是以不连续的颗粒形式进行的．沉积膜外层是（ＴＰＰ）Ｈ２的物理沉积，内层的（ＴＰＰ）Ｈ２发生了一定变化，但没有生成铁卟啉．提出了沉积膜的氢键作用模型．
Vapor deposited (TPP)H 2 film on iron was investigated by means of XPS, SEM, STM and potentiodynamic measurement. It was found that a well distributed deposited film as base layer was formed at initial stage, then growth of the film on the base layer in particle form. The film is composed of a physically adsorbed outer layer and chemically bonded inner layer of (TPP)H 2. The outer layer can be easily removed by DMF solvent. However, Iron porphyrin could not be found on the treated sample surfaces. A model about the structure and composition of the(TPP)H 2 deposited film is put forward.
出处
《腐蚀科学与防护技术》
CAS
CSCD
1999年第2期73-77,共5页
Corrosion Science and Protection Technology
基金
辽宁省自然科学基金
国家博士后科学基金
