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Direct Conversion of Dimethyl Ether in High Temperature Polymer Electrolyte Fuel Cells under Stationary and Dynamic Conditions

Noack, Christoph and Kallo, Josef and Friedrich, Andreas K. (2012) Direct Conversion of Dimethyl Ether in High Temperature Polymer Electrolyte Fuel Cells under Stationary and Dynamic Conditions. Journal of Applied Electrochemistry. Springer. DOI: 10.1007/s10800-012-0446-9

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Abstract

The behavior of a polybenzimidazole-based high-temperature polymer electrolyte membrane fuel cell using dimethyl ether (DME) as fuel was investigated under stationary and dynamic load conditions. The power density was enhanced significantly with an increase of both operating temperature and anodic water stoichiometry. Likewise, the power density decreased with increasing DME stoichiometry. The characterization of the dynamic operation showed a strong qualitative similarity to low-temperature direct methanol fuel cells. The development of the cell voltage after a spontaneous change of cell current density could be assigned to the electrochemical oxidation of an intermediate species.

Item URL in elib:https://elib.dlr.de/76752/
Document Type:Article
Title:Direct Conversion of Dimethyl Ether in High Temperature Polymer Electrolyte Fuel Cells under Stationary and Dynamic Conditions
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Noack, Christophchristoph.noack (at) dlr.deUNSPECIFIED
Kallo, Josefjosef.kallo (at) dlr.deUNSPECIFIED
Friedrich, Andreas K.andreas.friedrich (at) dlr.deUNSPECIFIED
Date:3 July 2012
Journal or Publication Title:Journal of Applied Electrochemistry
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
DOI :10.1007/s10800-012-0446-9
Publisher:Springer
Status:Published
Keywords:Fuel cell, High-temperature PEM, Dimethyl ether, Steady state and dynamic operation
HGF - Research field:Energy
HGF - Program:Efficient Energy Conversion (old)
HGF - Program Themes:E EV - Energy process technology (old)
DLR - Research area:Energy
DLR - Program:E EV - Energy process technology
DLR - Research theme (Project):E - Elektrochemische Prozesse (old)
Location: Stuttgart
Institutes and Institutions:Institute of Engineering Thermodynamics > Electrochemical Energy Technology
Deposited By: Noack, Christoph
Deposited On:06 Aug 2012 10:59
Last Modified:31 Jul 2019 19:37

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