X射线小角散射法测定Rh／TiO_2多相体系间的相界面

Determination of Interface Size in Multi-Phase System Ushing SAXS Method

Ｘ射线小角散射法测定Ｒｈ／ＴｉＯ_２多相体系间的相界面金安定，李钢，王甲亮（南京师范大学理化实验中心，南京，２１００９７）关键词Ｘ射线，小角散射，多相体系的界面固态多相体系中，相与相之间界面的大小是影响体系性质的重要因素。通常测比表面的方法只能测固相?..

A new method for determining the specific interface between different phases in a multi-phase system was recommended and as examples a group of SMSI catalyst Rh/TiO2was tested.The method,which is based on the calculation of correlation function and electron density fluctuations, was started from the intensity data collected on a rotating-anode X-ray diffraction system. The data were used to calculate the correlation function γ(0) value and the specific interface in multi-phase system using formulas given by Brumberger,et al.The results were valuable for chemists to explain the experiments in catalysis research work such as SMSI catalysis study and so on.