Effect of alkali carbonate in samarium-doped ceria electrolyte for a ceramic fuel cell | Zendy

Yifu Jing | Zendy

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Effect of alkali carbonate in samarium-doped ceria electrolyte for a ceramic fuel cell

Author(s) -

Yifu Jing

Publication year - 2016

Publication title -

nano energy systems

Language(s) - English

Resource type - Journals

ISSN - 2514-4944

DOI - 10.24274/nes.2016.a6

Subject(s) - samarium , alkali metal , electrolyte , ceramic , materials science , carbonate , doping , inorganic chemistry , fuel cells , chemical engineering , chemistry , metallurgy , electrode , organic chemistry , optoelectronics , engineering

Here we analyze the effects of alkali carbonate (Na2CO3 and K2CO3) in a low-temperature ceramic fuel cell. The electrolyte consists of a composite of samarium doped cerium (Ce0.8Sm0.2O1.9) and carbonate. The alkali ions and CO2 mixed with air as oxidant improved the power density and the open circuit voltage (OCV) of the fuel cell. The best results achieved showed a power density of 500 mW/cm2 and an OCV of 1.2 V at 500 oC. The highest OCV observed was 1.4 V. The fuel cell exhibits both molten carbonate and low-temperature solid oxide fuel cell reactions. Department of Applied Physics, Aalto University School of Science, P.O. Box 15100, FI-00076 Aalto, Espoo, Finland.

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