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dc.contributor.authorKashyap, Diwakar
dc.contributor.authorTeller, Hanan
dc.contributor.authorSubramanian, Palaniappan
dc.contributor.authorBělský, Petr
dc.contributor.authorGebru, Medhanie Gebremedhin
dc.contributor.authorPitussi, Itay
dc.contributor.authorYadav, Radhey Shyam
dc.contributor.authorHaya, Kornweitz
dc.contributor.authorSchechter, Alexander
dc.date.accessioned2022-11-07T11:00:12Z-
dc.date.available2022-11-07T11:00:12Z-
dc.date.issued2022
dc.identifier.citationKASHYAP, D. TELLER, H. SUBRAMANIAN, P. BĚLSKÝ, P. GEBRU, MG. PITUSSI, I. YADAV, RS. HAYA, K. SCHECHTER, A. Sn-based atokite alloy nanocatalyst for high-power dimethyl ether fueled low-temperature polymer electrolyte fuel cell. JOURNAL OF POWER SOURCES, 2022, roč. 544, č. OCT 1 2022, s. Nestránkováno. ISSN: 0378-7753cs
dc.identifier.issn0378-7753
dc.identifier.uri2-s2.0-85135168043
dc.identifier.urihttp://hdl.handle.net/11025/49889
dc.format12 s.cs
dc.format.mimetypeapplication/pdf
dc.language.isoenen
dc.publisherElsevieren
dc.relation.ispartofseriesJournal Of Power Sourcesen
dc.rightsPlný text je přístupný v rámci univerzity přihlášeným uživatelům.cs
dc.rights© Elsevieren
dc.titleSn-based atokite alloy nanocatalyst for high-power dimethyl ether fueled low-temperature polymer electrolyte fuel cellen
dc.typečlánekcs
dc.typearticleen
dc.rights.accessrestrictedAccessen
dc.type.versionpublishedVersionen
dc.description.abstract-translatedNext-generation fuels are defined as those produced from non-food resources. A leading member in this group is dimethyl ether− DME (C2H6O), which is a high-energy, non-toxic gas, produced from a wide range of carbon feedstocks and wastes. We explored the oxidation of DME on a highly active catalyst based on Pt3Pd3Sn2 with an atokite structure in comparison to Pt3Sn and Pd3Sn. Following a comprehensive characterization of the new ternary catalyst by electron microscopy, X-ray diffraction, and photoelectron spectroscopy, the DME anodic reaction was analyzed by electrochemical online mass spectrometry of fuel cell gas emission product and supported by density functional theory (DFT) calculations. Pt3Pd3Sn2 catalyst exhibits optimal binding energy (−0.21 eV) and the lowest activation energy for electrochemical oxidation of DME (48.7 kJ mol−1 at 0.80 V). A few preferred oxidation routes were examined at different potentials corroborating with the identified CO2, formic acid, methanol, and methyl-formate by in-operando online mass spectrometry. Fuel-cell constructed using a Pt3Pd3Sn2/C anode catalyst and commercial Pt/C cathode catalyst, delivered an open circuit voltage of 0.9 V, a peak power density of 220 mW cm−2 at 0.40 V, and a gravimetric power density of 135 mW mgpgm−1 at ambient pressure and 80 °C, which exceeded the highest values reported so far for direct DME fuel cells.en
dc.subject.translatedDimethyl etheren
dc.subject.translatedTernary electrocatalystsen
dc.subject.translatedElectrochemical oxidationen
dc.subject.translatedFuel cellen
dc.subject.translatedOnline mass spectroscopyen
dc.identifier.doi10.1016/j.jpowsour.2022.231882
dc.type.statusPeer-revieweden
dc.identifier.document-number842920100001
dc.identifier.obd43936951
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