Search results for " anodic alumina membrane"

showing 10 items of 21 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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Electrochemical Fabrication of Sn-Co Nanowires in Anodic Alumina Templates

2008

Settore ING-IND/23 - Chimica Fisica ApplicataElectrochemical Deposition Anodic Alumina Membranes SnCo alloys Nanowires Lithium Batteries
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Processo di produzione di filamenti nanometrici in lega amorfa Sn-Co

2008

Settore ING-IND/23 - Chimica Fisica ApplicataElectrochemical deposition Lithium Battery Anodic alumina membranes Nanowires SnCo alloy
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Fabrication and Characterization of Different Nanostructures

2007

Settore ING-IND/23 - Chimica Fisica ApplicataNanostructures Nanowires Nanotubes Electrodeposition Template Electrosynthesis Anodic Alumina Membranes
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Fabrication and characterization of nanostructured materials

2008

Settore ING-IND/23 - Chimica Fisica ApplicataNanostructures Template Electrosynthesis Anodic alumina membranes Nanowires Nanotubes
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Nanostructured alloys for energy devices

2009

Settore ING-IND/23 - Chimica Fisica ApplicataSnCo PdCo Alloys Electrodeposition Template Synthesis Nanoparticles Nanowires Anodic Alumina Membranes
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Electrodeposition of lead dioxide nanowires with a high aspect ratio

2008

Settore ING-IND/23 - Chimica Fisica ApplicataTemplate Electrosynthesis Anodic Alumina Membranes Nanowires Lead Dioxide
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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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1D cerium oxy-hydroxide nanostructures deposition via electrogeneration of base into anodic alumina membrane

2008

cerium oxy-hydroxide nanostructures deposition via electrogeneration of base anodic alumina membrane
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Optimized bath for electroless deposition of palladium on amorphous alumina membranes

2006

A new bath for the electroless deposition of palladium on anodic alumina (AA) membranes is proposed. It was found that the optimal conditions for the uniform deposition of palladium, with minimal damage to the AA membranes, were under conditions of pH 8.4 and plating times shorter than 30 min. The deposited Pd layer was detected by X-ray diffraction (XRD) and energy dispersive X-ray (EDX) analysis. The morphology of the AA membrane before and after plating was examined by scanning electron microscopy (SEM). EDX analysis revealed that palladium was deposited only on the surfaces of the membrane and Sn ions, coming from the sensitizing bath, were incorporated into the palladium layer. EDTA in…

inorganic chemicalsMaterials scienceScanning electron microscopeInorganic chemistrychemistry.chemical_elementSurfaces and InterfacesGeneral ChemistryCondensed Matter PhysicsSurfaces Coatings and FilmsAmorphous solidMembranechemistryAluminiumPlatingMaterials ChemistryFourier transform infrared spectroscopyElectroless deposition Palladium Dehydrogenation Anodic alumina membranesLayer (electronics)PalladiumSurface and Coatings Technology
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