Adsorption and desorption reactions of bicyclic aromatic compounds at polycristalline and Pt(111) studied by DEMS

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Authors

LOEFFLER Thomas DRBÁLKOVÁ Eva JANDERKA Pavel KOENIGSHOVEN P. BALTRUSCHAT Helmut

Year of publication 2003
Type Article in Periodical
Magazine / Source Journal of Electroanalytical Chemistry
MU Faculty or unit

Faculty of Science

Citation
Field Electrochemistry
Keywords Hydrogenation; Adsorption; Platinum single crystal electrodes; Naphthalene; Tetraline; Biphenyl
Description The adsorption of naphthalene, tetraline and biphenyl at Pt(111), roughened Pt(111) and polycrystalline Pt electrodes was studied using differential mass spectrometry (DEMS). From the amount of carbon dioxide evolved during oxidation of the adsorbate layers, coverages were estimated to be around 0.2 nmol sqcm for all three molecules. Less than half of adsorbate formed from naphthalene or tetraline can be desorbed as main product, the rest of adsorbate undergoes to hydrogenation.
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