High-Performance Nanostructured Membrane Electrode Assemblies for Fuel Cells Made by Layer-By-Layer Assembly of Carbon Nanocolloids


  • We acknowledge the Fulbright/Alsace committee for financial support. P.P. thanks the Fannie and John Hertz Foundation for support of his research through a graduate fellowship. N.A.K. thanks AFOSR for the support of this research. Supporting Information is available online from Wiley InterScience or form the author.


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Layer-by-layer (LBL) assembly is used to produce high-performance nanostructured membrane electrode assemblies for H2/O2 fuel cells (see figure) for which porosity, platinum loading, electronic conductivity, and proton conductivity can be finely tuned. Free-standing membranes are made from negatively charged Nafion-wrapped carbon fibers (CFs) and single-walled carbon nanotubes (SWNTs) with Pt nanoparticles deposited by a selective heterogeneous nucleation reaction.