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High‐Performance Nanostructured Membrane Electrode Assemblies for Fuel Cells Made by Layer‐By‐Layer Assembly of Carbon Nanocolloids
Author(s) -
Michel M.,
Taylor A.,
Sekol R.,
Podsiadlo P.,
Ho P.,
Kotov N.,
Thompson L.
Publication year - 2007
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200701219
Subject(s) - materials science , membrane , nafion , electrode , layer (electronics) , carbon nanotube , conductivity , nucleation , layer by layer , carbon fibers , nanoparticle , proton exchange membrane fuel cell , nanotechnology , membrane electrode assembly , chemical engineering , porosity , platinum , composite material , fuel cells , electrochemistry , anode , catalysis , organic chemistry , chemistry , composite number , engineering , genetics , biology
Layer‐by‐layer (LBL) assembly is used to produce high‐performance nanostructured membrane electrode assemblies for H 2 /O 2 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.