A new energy conversion technology joining electrochemical and physical principles
2012 (English)In: RSC Advances, ISSN 2046-2069, Vol. 2, no 12, 5066-5070 p.Article in journal (Refereed) Published
We report a new energy conversion technology joining electrochemical and physical principles. This technology can realize the fuel cell function but built on a different scientific principle. The device consists of a single component which is a homogenous mixture of ceria composite with semiconducting materials, e.g. LiNiCuZn-based oxides. The test devices with hydrogen and air operation delivered a power density of 760mWcm(-2) at 550 degrees C. The device has demonstrated a multi-fuel flexibility and direct alcohol and biogas operations have delivered 300-500 mW cm(-2) at the same temperature. Device physics reveal a key principle similar to solar cells realizing the function based on an effective separation of electronic and ionic conductions and phases within the single-component. The component material multi-functionalities: ion and semi-conductions and bi-catalysis to H-2 or alcohol (methanol and ethanol) and air (O-2) enable this device realized as a fuel cell.
Place, publisher, year, edition, pages
2012. Vol. 2, no 12, 5066-5070 p.
nanocomposite, single component, fuel cell
Research subject SRA - Energy
IdentifiersURN: urn:nbn:se:kth:diva-94862DOI: 10.1039/C2RA01234KISI: 000304487000012ScopusID: 2-s2.0-84865266380OAI: oai:DiVA.org:kth-94862DiVA: diva2:526261
QC 201206252012-05-112012-05-112013-11-22Bibliographically approved