An Electrolyte-Free Fuel Cell Constructed from One Homogenous Layer with Mixed Conductivity
2011 (English)In: Advanced Functional Materials, ISSN 1616-301X, E-ISSN 1616-3028, Vol. 21, no 13, 2465-2469 p.Article in journal (Refereed) Published
Rather than using three layers, including an electrolyte, a working fuel cell is created that employs only one homogenous layer with mixed conductivity. The layer is a composite made from a mixture of metal oxide, Li(0.15)Ni(0.45)Zn(0.4) oxide, and an ionic conductor; ion-doped ceria. The single-component layer has a total conductivity of 0.1-1 S cm(-1) and exhibits both ionic and semiconducting properties. This homogenous one-layer device has a power output of more than 600 mW cm(-2) at 550 degrees C operating with H(2) and air. Overall conversion is completed in a similar way to a traditional fuel cell, even though the device does not include the electrolyte layer critical for traditional fuel-cell technologies using the three-component anode-electrolyte-cathode structure.
Place, publisher, year, edition, pages
2011. Vol. 21, no 13, 2465-2469 p.
Engineering and Technology
IdentifiersURN: urn:nbn:se:kth:diva-37157DOI: 10.1002/adfm.201002471ISI: 000292707700008ScopusID: 2-s2.0-79960010008OAI: oai:DiVA.org:kth-37157DiVA: diva2:432410