High‐Performance Direct Methanol Fuel Cells with Precious‐Metal‐Free Cathode
نویسندگان
چکیده
منابع مشابه
High‐Performance Direct Methanol Fuel Cells with Precious‐Metal‐Free Cathode
Direct methanol fuel cells (DMFCs) hold great promise for applications ranging from portable power for electronics to transportation. However, apart from the high costs, current Pt-based cathodes in DMFCs suffer significantly from performance loss due to severe methanol crossover from anode to cathode. The migrated methanol in cathodes tends to contaminate Pt active sites through yielding a mix...
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nt matter & 2013 0.1016/j.nanoen.2 thor. Tel.: +82 54 . nt_tiw123@yahoo Abstract Continuous growth in global energy demand has sparked concerns about energy security and environmental sustainability. In the past two decades, attempts have been made in the development of innovative energy technologies. The direct methanol fuel cell (DMFC) is among the most promising alternative energy sources fo...
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The cathode catalyst layer (CL) in direct methanol fuel cells (DMFCs) has been optimized through a balance of ionomer and porosity distributions, oth playing important roles in affecting proton conduction and oxygen transport through a thick CL of DMFC. The effects of fabrication rocedure, ionomer content, and Pt distribution on the microstructure and performance of a cathode CL under low air f...
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Mastery over the structure of nanoparticles might be an effective way to enhance their performance for a given application. Herein we demonstrate the design of cage-bell nanostructures to enhance the methanol tolerance of platinum (Pt) nanoparticles while remaining their catalytic activity for oxygen reduction reaction. This strategy starts with the synthesis of core-shell-shell nanoparticles w...
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ژورنال
عنوان ژورنال: Advanced Science
سال: 2016
ISSN: 2198-3844,2198-3844
DOI: 10.1002/advs.201600140