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Application of yttrium doped barium cerate for improvement of the dual membrane SOFC design (Articolo in rivista)

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Application of yttrium doped barium cerate for improvement of the dual membrane SOFC design (Articolo in rivista) (literal)

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Vladikova D.; Stoynov Z.; Chesnaud A.; Thorel A.; Viviani M.; Barbucci A.; Raikova G.; Carpanese P.; Krapchanska M.; Mladenova E. (2014)
Application of yttrium doped barium cerate for improvement of the dual membrane SOFC design
in International journal of hydrogen energy; Elsevier Ltd, Oxford (Regno Unito)
(literal)

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Vladikova D.; Stoynov Z.; Chesnaud A.; Thorel A.; Viviani M.; Barbucci A.; Raikova G.; Carpanese P.; Krapchanska M.; Mladenova E. (literal)

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1,2,7,9,10 : Institute of Electrochemistry and Energy Systems - Bulgarian Academy of Sciences, 10 Acad. G. Bonchev St., 1113 Sofia, Bulgaria / 3,4 : Centre des Mate´riaux, Mines-ParisTech, BP87, 91003 Evry Cedex, France / 5 : Institute for Energetics and Interphases (IENI-CNR), National Research Council, 6 Via De Marini, 16149 Genova, Italy / 6,8 : Department of Chemical and Process Engineering (DICHeP), University of Genova, 10 P. le Kennedy, 16129 Genova, Italy (literal)

Titolo

Application of yttrium doped barium cerate for improvement of the dual membrane SOFC design (literal)

Abstract

Recently a new design of solid oxide fuel cell (SOFC) named dual membrane fuel cell (dmFC) has been introduced and proved. It is based on the introduction of three inde- pendent compartments for hydrogen, oxygen and water, which eliminate the dilution of the fuel or the oxidizer respectively in the SOFC construction or in its proton conducting (pSOFC) modification. Due to the registered sufficient mixed ionic conductivity of BaCe0.85Y0.15O2.925 (BCY15), a simplified modification in respect to shaping technology and construction is introduced. It's performance is better than the one of pSOFC cell produced with the same material and shaping procedure: 76 mW/cm2 (dmFC thickness 1.1 mm) against 71 mW/cm2 (pSOFC thickness 0.66 mm) at 700 ?C. Impedance measurements car- ried out down to 1 mHz ensure information about the water formation and behaviour in the separate central membrane compartment of the dmFC design, which brings to per- formance improvements, registered also in electrolyser mode of operation. (literal)

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