金属表面功能性Mo(W)-S彩色簇合物膜的结构与性能

Structure and Performance of Functional Various Colour Mo(W)-S Cluster Compound Films on Metal Surface

采用加速腐蚀实验、LSV、CV、FT IR、FT Raman、XPS和AES研究了Mo(W)S2-4在金属表面的成键特征和波谱变化,探讨了生成的彩色簇合物膜的组成、结构、性能、化学状态和形成机理。结果表明,膜层中存在桥基Mo(W)-S-M键、端基Mo(W)=S和Mo(W)=O键。膜为多分子层组成的复杂体系,属于功能性修饰层,其颜色是各组分统计分布的结果。

Accelerated corrosion tests, LSV, CV, FT-IR, FT-Raman, XPS and AES determinations were carried to investigate the bonding features and spectral changes of Mo(W)S^(2-)_4 on metal surface. The mechanism for films formation and the relationship between these novel films structure and the observed inhibition behavior are discussed. The results show that bridged Mo(W)-S-M, terminal Mo(W)=S and terminal Mo(W)=O bonds exist in the cluster compound films. The films are complex multicomponent and multilayer systems, and functional finishing layers. Their colours are probably caused by Mo(W)-S-M bonds and a statistical distribution and overlapping of various molecular layers.