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DC poleHodnotaJazyk
dc.contributor.authorGebremedhin Gebru, Medhanie
dc.contributor.authorShyam Yadav, Radhey
dc.contributor.authorTeller, Hanan
dc.contributor.authorKornweitz, Haya
dc.contributor.authorSubramanian, Palaniappan
dc.contributor.authorSchechter, Alexander
dc.date.accessioned2023-08-28T10:00:09Z-
dc.date.available2023-08-28T10:00:09Z-
dc.date.issued2023
dc.identifier.citationGEBREMEDHIN GEBRU, M. SHYAM YADAV, R. TELLER, H. KORNWEITZ, H. SUBRAMANIAN, P. SCHECHTER, A. Harnessing dimethyl ether and methyl formate fuels for direct electrochemical energy conversion. Journal of Energy Chemistry, 2023, roč. 83, č. AUG 2023, s. 454-464. ISSN: 2095-4956cs
dc.identifier.issn2095-4956
dc.identifier.uri2-s2.0-85160772075
dc.identifier.urihttp://hdl.handle.net/11025/53870
dc.format
dc.format11 s.cs
dc.format.mimetypeapplication/pdf
dc.language.iso
dc.language.isoenen
dc.publisherElsevieren
dc.relation.ispartofseriesJournal of Energy Chemistryen
dc.rightsPlný text je přístupný v rámci univerzity přihlášeným uživatelůmcs
dc.rights© Science Press and Dalian Institute of Chemical Physics, Chinese Academy of Sciencesen
dc.titleHarnessing dimethyl ether and methyl formate fuels for direct electrochemical energy conversionen
dc.typečlánekcs
dc.typearticleen
dc.rights.accessrestrictedAccessen
dc.type.versionpublishedVersionen
dc.description.abstract-translatedIn this work, the oxidation of a mixture of dimethyl ether (DME) and methyl formate (MF) was studied in both an aqueous electrochemical cell and a vapor-fed polymer electrolyte membrane fuel cell (PEMFC) utilizing a multi-metallic alloy catalyst, Pt3Pd3Sn2/C, discovered earlier by us. The current obtained during the bulk oxidation of a DME-saturated 1 M MF was higher than the summation of the currents provided by the two fuels separately, suggesting the cooperative effect of mixing these fuels. A significant increase in the anodic charge was realized during oxidative stripping of a pre-adsorbed DME+MF mixture as compared to DME or MF individually. This is ascribed to greater utilization of specific catalytic sites leading to lower energy of the dual-fuel than of the sum of the individual molecules as confirmed by the density functional theory (DFT) calculations. Fuel cell polarization was also conducted using a Pt3Pd3Sn2/C (anode) and Pt/C (cathode) catalysts-coated membrane (CCM). The enhanced surface coverage and active site utilization resulted in providing a higher peak power density by the DME+MF mixture-fed fuel cell (123 mW cm−2 at 0. 45 V) than with DME (84 mW cm−2 at 0.35 V) or MF (28 mW cm−2 at 0.2 V) at the same total anode hydrocarbon flow rate, temperature under ambient pressure.en
dc.subject.translateddimethyl etheren
dc.subject.translatedmethyl formate, fuel cell, electrocatalysis, multi-metallic alloyen
dc.identifier.doi10.1016/j.jechem.2023.05.001
dc.type.status
dc.type.statusPeer-revieweden
dc.identifier.document-number1014802300001
dc.identifier.obd43939958
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