Xin Hui Technology: Prospects membrane switch technology is about the nature of the membrane switch technology promising technology to prepare a two-dimensional structure of the catalyst may become the model prescribed surface preparation methods, but also a catalyst for the development of practical difficult to use at this stage. Like extension and synthesis of artificial lattice as high-precision control structure, the characteristics of the material itself can be fully tapped. Now using thin film technology to control the microstructure and composition, it became Ga, GaAs, GaP semiconductor electronic materials as the object of research centers. But the accumulation of information on the relationship between large catalytic metals, metal oxides, metal sulfides and other materials is not sufficient, it will be the focus of research. However, as a catalyst for the study of various substances, if it is done with high precision control structure technology, the use of crystal research "different reactivity", "Partcle size cffect", "Support effect", "Strong met-al-support interaction", etc. , it is possible to provide an ideal model of the surface, in particular to the use of artificial synthetic lattice. So far, depending on the preparation method of thermodynamics, even if a substance having a totally new synthetic nature, but the surface structure and composition is still easily understood. Therefore, the use of thin-film physics mature technology, deep research for the promotion of catalytic science of great significance.