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RESEARCH PRODUCT

Chitosan-phosphotungstic acid complex as membranes for low temperature H2-O2 fuel cell

C.m. PecoraroPatrizia BocchettaMonica SantamariaF. Di Quarto

subject

ChitosanMaterials scienceScanning electron microscopeRenewable Energy Sustainability and the EnvironmentProton conductingH2-O2 PEMCFEnergy Engineering and Power TechnologyHeteropolyacidConductivityElectrochemistryPolyelectrolyteChitosanComposite membranechemistry.chemical_compoundMembraneSettore ING-IND/23 - Chimica Fisica ApplicatachemistryChemical engineeringPolymer chemistryPhosphotungstic acidElectrical and Electronic EngineeringPhysical and Theoretical ChemistryChitosanHeteropolyacidComposite membraneProton conductingH2–O2 PEMFCProton conductor

description

Abstract Free-standing Chitosan/phosphotungstic acid polyelectrolyte membranes were prepared by an easy and fast in-situ ionotropic gelation process performed at room temperature. Scanning electron microscopy was employed to study their morphological features and their thickness as a function of the chitosan concentration. The membrane was tested as proton conductor in low temperature H 2 –O 2 fuel cell allowing to get peak power densities up to 350 mW cm −2 . Electrochemical impedance measurements allowed to estimate a polyelectrolyte conductivity of 18 mS cm −1 .

yearjournalcountryeditionlanguage
2015-02-01
10.1016/j.jpowsour.2014.11.147http://hdl.handle.net/10447/154241