J. Phys. IV France 7 (1997) C2-521-C2-522
Soft X-Ray Absorption Spectroscopy of Catalysts and Related MaterialsC.E. Hayter1, J.M. Corker1, J. Evans1 and R.J. Oldman2
1 University of Southampton, Southampton SO17 1BJ, UK
2 ICI Research & Technology Centre, Runcorn WA7 4QD, UK
Our investigation has aimed to identify the process involved in the H2S - ZnO interaction by in-situ X-ray absorption spectroscopy at the sulphur edge. Time resolved XANES show a progression from chemisorbed H2S to ZnS and in-situ S K-edge EXAFS sveal an intermediate phase containing a S - Zn distance of 2.71 Å. NiO proceeds by a similar pathway after activation at 100°C.
© EDP Sciences 1997