6533b7d9fe1ef96bd126ceb7

RESEARCH PRODUCT

Nanoporous alumina membranes filled with solid acid for thin film fuel cells at intermediate temperatures

Carmelo SunseriF. Di QuartoPatrizia BocchettaR. MasiGiovanni Pietro Chiavarotti

subject

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

description

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 cell, Intermediate temperature fuel cell

10.1016/j.elecom.2004.07.004https://hdl.handle.net/11587/374282