Search results for " Thin film fuel cell"

showing 3 items of 3 documents

Advances in Anodic Alumina Membranes-based fuel cell: CsH2PO4 pore-filler as proton conductor at room temperature

2009

Abstract Anodic alumina membranes (AAM) filled with cesium hydrogen phosphate proton conductor have been tested as inorganic composite electrolyte for hydrogen–oxygen thin film (≤50 μm) fuel cell (TFFC) working at low temperatures (25 °C), low humidity ( T gas  = 25 °C) and low Pt loading (1 mg cm −2 ). Single module TFFC delivering a peak power of around 15–27 mW cm −2 , with open circuit voltage (OCV) of about 0.9 V and short circuit current density in the range 80–160 mA cm −2 have been fabricated. At variance with pure solid acid electrolytes showing reproducibility problems due to the scarce mechanical resistance, the presence of porous alumina support allowed to replicate similar fuel…

Renewable Energy Sustainability and the EnvironmentChemistryOpen-circuit voltageAnodic alumina membranes Cesium hydrogen phosphate Composite proton conductors Pore filling Thin film fuel cellAnalytical chemistryEnergy Engineering and Power TechnologyElectrolyteElectrochemistryDielectric spectroscopySettore ING-IND/23 - Chimica Fisica ApplicataChemical engineeringDifferential thermal analysisElectrical and Electronic EngineeringPhysical and Theoretical ChemistryThin filmShort circuitCesium hydrogen phosphate Anodic alumina membranes Pore filling Composite proton conductors Thin film fuel cellProton conductor
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Cs0.86(NH41.14SO4Te(OH)6 in porous anodic alumina for micro fuel cell applications.

2011

Abstract Cs0.86(NH4)1.14SO4Te(OH)6 supported by anodic alumina membranes (AAMs) has been characterized for the first time in H2/O2 fuel cell. The fabricated membrane electrode assemblies are able to produce peak power densities in the range 15–30 mW cm−2 under mild conditions (room temperature, low humidity and low Pt loading) and show an increased durability with cycling with respect to previous results obtained with AAM-based fuel cell. The physico-chemical characterization of the electrolytes has been carried out through X-ray diffractometry, scanning electron microscopy and micro-raman analysis. An estimation of the composite membranes conductance under fuel cell operation has been carr…

Thin film fuel cellScanning electron microscopeChemistryGeneral Chemical EngineeringInorganic chemistryConductanceElectrolytePorous alumina fuel cellCesium ammonium sulphate tellurateAnodeMembraneSettore ING-IND/23 - Chimica Fisica ApplicataChemical engineeringElectrodeComposite proton conductors Porous alumina fuel cell Thin film fuel cell Cesium ammonium sulphate tellurateElectrochemistryComposite proton conductorThin filmPorosity
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Nanoporous alumina membranes filled with solid acid for thin film fuel cells at intermediate temperatures

2004

Thin film fuel cells have been fabricated by impregnation of inorganic porous membranes with inorganic proton conductor. Anodic alumina membranes (50 μm thick and pore diameter of 200 nm), filled with CsHSO4 salt have been used as protonic conductor in a hydrogen-oxygen fuel cell working between 423 and 443 K in dry atmosphere. Polarization curves at 433 K showing ohmic control with open circuit values near 0.8 V and short circuit current around 8 mA cm−2 have been obtained. Possible causes of degradation as well as alternative routes to overcome some of the problems encountered with this approach will be reported. Keywords: Solid acid, Anodic alumina membranes, Pore filling, Thin film fuel…

Thin film fuel cellSolid acidMaterials scienceAnodic alumina membraneNanoporousOpen-circuit voltageProton exchange membrane fuel cellIntermediate temperature fuel cellAnodelcsh:ChemistrySettore ING-IND/23 - Chimica Fisica Applicatalcsh:Industrial electrochemistrylcsh:QD1-999Chemical engineeringAnodic alumina membranes Intermediate temperature fuel cell Pore filling Solid acid Thin film fuel cellElectrochemistryThin filmPore fillingSolid acid; Anodic alumina membranes; Pore filling; Thin film fuel cell; Intermediate temperature fuel cellPolarization (electrochemistry)Short circuitlcsh:TP250-261Proton conductor
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