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.
Related projects:	Differential Mass Spectrometry (DEMS) of Aromatic Compounds Structure and character of bonding, properties and analysis of synthetic and natural molecular ensembles