NOX Reduction Properties of Chromia-doped Tin Oxide and Pla-tinized, Chromia-doped Tin Oxide

本研究试图通过x射线光电子能谱、俄歇电子能谱、电子刺激解吸和紫外光电子能谱等探测氧化锡的电子结构、组成和几何结构，来阐明氧化锡镀前和镀后的性质。最近对铬掺杂氧化锡的研究表明，这种材料有望用于处理氮氧化物。这些实验包括；也就是说原位;Ro动态测量是现代催化剂研究中最有前途的技术。一种改进的系统已经开发出来，用于使用一种已知的分析技术，即俄歇光谱。与过去的测定表面化合物种类和数量的方法相比，新系统可以得到更有意义的结果。改进后的方法还允许对更敏感的表面进行分析，这些表面迄今为止还不容易受到俄歇法的影响。

This study attempts to elucidate the properties of chromia-doped tin oxide before and after platinization by probing electronic structure, composition, and geometrical structure using x-ray photoelectron spectroscopy, Auger electron spectroscopy, electron stimulated desorption, and ultraviolet photoelectron spectroscopy. Recent work on chromia-doped tin oxide shows that this material holds promise for treatment of nitrogen oxides. These experiments involve ;itin situ;ro dynamic measurements, the most promising technique for modern catalyst studies. An improved system has been developed for use of an established analytical technique known as Auger spectroscopy. The new system allows more meaningful results than have been possible in the past from this technique which determines kind and amount of compounds present on surfaces. The improved method also allows more sensitive surfaces, not hitherto susceptible to the Auger method, to be analyzed.