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Zeitschriftenartikel:

N. Shakibi-Nia, A. Martucci, G. Granozzi, G. Garcia, E. Pastor, S. Penner, J. Bernardi, N. Alonso-Vante, J. Kunze-Liebhäuser:
"DEMS studies of the ethanol electro-oxidation on TiOC supported Pt catalystseSupport effects for higher CO2 efficiency";
Electrochimica Acta, 304 (2019), S. 80 - 86.



Kurzfassung englisch:
Direct ethanol fuel cells are highly promising energy conversion devices, but the complete oxidation of
ethanol to CO2 at low temperatures is still one of the main challenges. Titanium oxycarbide (TiO1-xCx)
powder is investigated as stable and synergistic support for Pt nanoparticles during the ethanol oxidation
reaction (EOR) in acidic electrolytes. EOR products are quantitatively detected online with differential
electrochemical mass spectrometry. At room temperature, Pt/TiO1-xCx has a CO2 efficiency
maximum of 8.9%, while only 1.7% are measured for Pt nanoparticles on Vulcan carbon (Pt/C). The reaction
pathway is channeled towards the formation of C1 products, while C2 product formation is
suppressed. This effect is expected to be much enhanced at elevated temperatures which makes TiO1-xCx
a highly interesting catalyst support material in general.


"Offizielle" elektronische Version der Publikation (entsprechend ihrem Digital Object Identifier - DOI)
http://dx.doi.org/10.1016/j.electacta.2019.02.089


Erstellt aus der Publikationsdatenbank der Technischen Universität Wien.