SoftX-Ray Absorption Spectroscopy of Catalysts and Related Materials

摘要

Our investigation has aimed to identify the process involved in the H_2S - ZnO interaction by in-situ X-ray absorption spectroscopy at the sulphur edge. Time resolved XANES show a progression from chemisorbed H_2S to ZnS and in-situ S K-edge EXAFS reveal an intermediate phase containing a S - Zn distance of 2.71 A. NiO proceeds by a similar pathway after activation at 100 ℃.