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    Comparison of Alkaline Direct Ethanol Fuel Cells With and Without Anion Exchange Membrane

    Source: Journal of Fuel Cell Science and Technology:;2014:;volume( 011 ):;issue: 005::page 51007
    Author:
    Huang, Jing
    ,
    Faghri, Amir
    DOI: 10.1115/1.4028156
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: The performance of three alkaline direct ethanol fuel cells (ADEFCs) is investigated. All three use identical anode and cathode electrodes, but one uses an anion exchange membrane (AEM) and the other two use nonpermselective porous separators. Ethanol was chosen as the fuel because of its low toxicity, low carbon footage, and market readiness. A direct comparison between ADEFCs with and without AEM is reported. The performance of each cell is studied under different operation conditions of temperature, reactants flow rate, ethanol and potassium hydroxide (KOH) concentrations. The results show that with low cost porous separator, the ADEFC can reach similar power output as those using expensive AEMs. With 1 M ethanol and 1 M KOH aqueous solution, the maximum power densities of 26.04 mW/cm2 and 24.0 mW/cm2 are achieved for the ADEFC employing AEM and porous separator, respectively. This proves the feasibility of replacing AEM with nonpermselective separators. The results suggest that improving the cathode structure in order to provide a better oxygen supply is the key factor to enhance the performance of an AEM free ADEFC.
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      Comparison of Alkaline Direct Ethanol Fuel Cells With and Without Anion Exchange Membrane

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    contributor authorHuang, Jing
    contributor authorFaghri, Amir
    date accessioned2017-05-09T01:09:06Z
    date available2017-05-09T01:09:06Z
    date issued2014
    identifier issn2381-6872
    identifier otherfc_011_05_051007.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/155153
    description abstractThe performance of three alkaline direct ethanol fuel cells (ADEFCs) is investigated. All three use identical anode and cathode electrodes, but one uses an anion exchange membrane (AEM) and the other two use nonpermselective porous separators. Ethanol was chosen as the fuel because of its low toxicity, low carbon footage, and market readiness. A direct comparison between ADEFCs with and without AEM is reported. The performance of each cell is studied under different operation conditions of temperature, reactants flow rate, ethanol and potassium hydroxide (KOH) concentrations. The results show that with low cost porous separator, the ADEFC can reach similar power output as those using expensive AEMs. With 1 M ethanol and 1 M KOH aqueous solution, the maximum power densities of 26.04 mW/cm2 and 24.0 mW/cm2 are achieved for the ADEFC employing AEM and porous separator, respectively. This proves the feasibility of replacing AEM with nonpermselective separators. The results suggest that improving the cathode structure in order to provide a better oxygen supply is the key factor to enhance the performance of an AEM free ADEFC.
    publisherThe American Society of Mechanical Engineers (ASME)
    titleComparison of Alkaline Direct Ethanol Fuel Cells With and Without Anion Exchange Membrane
    typeJournal Paper
    journal volume11
    journal issue5
    journal titleJournal of Fuel Cell Science and Technology
    identifier doi10.1115/1.4028156
    journal fristpage51007
    journal lastpage51007
    identifier eissn2381-6910
    treeJournal of Fuel Cell Science and Technology:;2014:;volume( 011 ):;issue: 005
    contenttypeFulltext
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