Reduction of methanol crossover in a flowing electrolyte-direct methanol fuel cell
نویسندگان
چکیده
منابع مشابه
Assessment of Electrochemical Methods for Methanol Crossover Measurement through PEM of Direct Methanol Fuel Cell
It is important to have accurate, reliable, and convenient techniques for determining the methanol crossover rate through the polymer electrolyte membranes of fuel cells. In this work, various electrochemical techniques, namely; cyclic voltammetry, chronoamperometry and potentiometry, have been used to measure the methanol crossover rates using Nafion 117 membrane. The purpose of using differen...
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Sulfonic acid-functionalized polymer electrolyte membranes alternative to Nafion(®) were developed. These were hydrocarbon systems, such as blend sulfonated polyetheretherketone (s-PEEK), new generation perfluorosulfonic acid (PFSA) systems, and composite zirconium phosphate-PFSA polymers. The membranes varied in terms of composition, equivalent weight, thickness, and filler and were investigat...
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Methanol crossover (MCO) significantly affects the performance of a direct methanol fuel cell (DMFC). In order to reduce its effect, this study presents in-house carbon nanofiber webs (CNWs) used as a porous methanol barrier for MCO control in a passive DMFC. The CNW is made from polyacrylonitrile (PAN) by using electrospinning and heat treatment. The impacts of PAN concentration and carbonizin...
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U.S. PATENT DOCUMENTS 4,729,931 A * 311988 Grimble ...................... 429117 5,047,299 A * 911991 Schockling .................. 429120 5,164,060 A * 1111992 Eisman et al. ................ 429112 5,169,730 A * 1211992 Reichner et al. .............. 429120 5,527,631 A * 611996 Singh et al. .................. 429120 5,561,000 A 1011996 Dirven et al. 5,582,632 A 1211996 Nohr et al. 5,593,721 A ...
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The direct methanol fuel cell (DMFC) is considered a viable power production technology for portable electronics equipment (10’s-100’s watts) and transportation vehicles (10’s-100’s kilowatts). Since methanol is relatively inexpensive and a reformer or other fuel processing equipment is not required for the DMFC, this power system has the potential to be low cost, compact, reliable and fuel eff...
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ژورنال
عنوان ژورنال: International Journal of Hydrogen Energy
سال: 2017
ISSN: 0360-3199
DOI: 10.1016/j.ijhydene.2017.01.004