Journal
ADVANCED MATERIALS
Volume 18, Issue 3, Pages 371-+Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.200500689
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Nanoporous anatase thin films (see Figure) have been prepared via particulate sol-gel processes. The proton conductivity shows a sigmoidal dependence on relative humidity (RH). The highest value of proton conductivity was 3.78 x 10(-2) S cm(-1) at 80 degrees C and 81 % RH. The comparable proton conductivity, lower cost, and higher hydrophilicity of these thin films make them potential substitutes for Nafion membranes in proton-exchange membrane fuel cells.
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