[Surface studies of absorbents for the removal of SO{sub x} and NO{sub x}]. Quarterly report, March 1, 1990--May 31, 1990

We performed XANES and EXAFS measurements at the sulfur K-edge for FeS, CuS and two coals, Powhatan {number_sign}5 and Blacksville {number_sign}2. We have used the measurements of the two standards in discussing the spectra of the spectra of the two coals as described below. We have continued our investigation for the possible bonding configurations of the SO{sub 2} molecule on CuO/Al{sub 2}O{sub 3}. In distinction to sulfur-to-metal (S-M) on-top bonding, we find that oxygen-to-metal (O-M) on-top bonding does provide a possible adsorption configuration of interest. We want next to investigate bridging type adsorption configurations. Before doing this, it is necessary to further examine the detailed behavior of the model for the clean CuO/Al{sub 2}O{sub 3} surface.