Effect of CO on hydrogen adsorption on palladium |
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Authors: | Nguyen Van Hieu J.H. Craig |
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Affiliation: | Department of Physics, University of Nebraska at Omaha, Omaha, Nebraska 68182, USA |
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Abstract: | Coadsorption of H2 and CO on Pd has been studied using TDS and ESD techniques. It has been observed that the presence of 10% CO in the H2 dosing gas during exposure gives rise to a drastic change in the TDS spectra of H2 compared to the case when only H2 is separately adsorbed. Furthermore, significant modifications occur in the ESD energy distribution of CO+ and H+ as a result of coadsorption of H2 and CO. These observations are taken as evidence of adsorbate interaction possibly resulting in formation of an HCO surface complex. |
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