Acta Chimica Sinica ›› 2003, Vol. 61 ›› Issue (12): 1997-2001. Previous Articles     Next Articles

Original Articles

表面离子法制备多组分LB膜和CeO_2-Gd_2O_3陶瓷膜

方堃;邹纲;何平笙   

  1. 中国科学技术大学高分子科学与工程系
  • 出版日期:2003-12-15 发布日期:2003-12-15

43811214381

Fang Kun;Zou Gang;He Pingsheng   

  1. Department of Polymer Science and Engineering, University of Science and Technology of China
  • Online:2003-12-15 Published:2003-12-15

The mixture of arachidic acid (AA) and rare earth β-diketonate complexes [Ce(tmhd)_4 and Gd(tmhd)_3] (tmhd = tetramethylheptanedionate) can form miscible, stable and condensed mixed Langmuir films on pure water. Acting as the "surface ions", the complexes, especially Gd(tmhd)_3, interacted with AA molecules due to the strong complexation. Y-type three-component LB films with periodically ordered structure were prepared successfully. The CeO_2- Gd_2O_3 (CGO) ceramic films were fabricated through Ultra- Violet/ozone (UVO) decomposition at room temperature and annealing treatment at higher temperature. XPS measurements demonstrated that the surface ions were transferred somewhat selectively during the LB deposition, which could be due to t