Adsorption and interaction of CO and NO on Pt(410): I. TPD studies |
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| Authors: | YO Park WF Banholzer RI Masel |
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| Institution: | Department of Chemical Engineering, Roger Adams Laboratory, University of Illinois, 1209 W. California Street, Urbana, Illinois 61801, USA |
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| Abstract: | NO and CO adsorption and the NO/CO reaction on Pt(410) are studied by TPD. NO is found to dissociate on Pt(410) at 120 K, but it reacts to form N2O at higher exposures. The N2O desorbs in two peaks at 135 and 150 K. CO adsorbs molecularly, and desorbs in 5 peaks at 550, 500, 450, 380 and about 130 K. CO is also found to dissociate upon heating, leaving a carbon residue on the surface which changes the TPD spectra. The NO/CO reaction shows a surface explosion at 360 K. These results provide additional evidence that Pt(410) has unusual reactivity, as predicted by Banholzer, Park, Mak and Masel, Surface Sci. 128 (1983) 176. |
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| Keywords: | Correspondence should be addressed to this author |
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