表面化学反应中间生成物的检测

Detection of Intermediates of Chemical Reactlins on surfaces

对催化反应的各种中间生成物实施检测以直接确定反应的基元步骤、路径和机理，是研究表面催化反应的有效手段。探索一种检测化学中间生成物的方法是一个意义重大的课题。本文提出了用激光脉冲成象原子探针（Ｐｕｌｓｅｄ－ＬａｓｅｒＩｍａｇｉｎｇＡｔｏｍ－Ｐｒｏｂｅ，ＰＬＩＡＰ）［１］研究表面催化反应的方法，并对运用ＰＬＩＡＰ检测表面催化反应中间生成物的实验条件和实验结果的真实性进行了概括和探讨。

It is desirable for studying catalyses to detect the intermediates of chemical reactions since it is a direct way to determine the elementary steps and to clarify the mechanisms of chemical reactions.In this paper,how to realize it by using Pulsed-Laser Imaging Atom-Probe(PL IAP)is introduced and the results are discussed.