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Nickel–Iron/Gadolinium‐Doped Ceria (CGO) Composite Electrocatalyst as a Protective Layer for a Solid‐Oxide Fuel Cell Anode Fed with Biofuels
Author(s) -
Lo Faro Massimiliano,
Trocino Stefano,
Zignani Sabrina Campagna,
Italiano Cristina,
Reis Rafael Machado,
Ticianelli Edson Antonio,
Aricò Antonino Salvatore
Publication year - 2016
Publication title -
chemcatchem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.497
H-Index - 106
eISSN - 1867-3899
pISSN - 1867-3880
DOI - 10.1002/cctc.201501090
Subject(s) - electrocatalyst , anode , solid oxide fuel cell , materials science , chemical engineering , electrochemistry , nickel , oxide , inorganic chemistry , electrode , chemistry , metallurgy , engineering
The performance and reliability of a commercial solid‐oxide fuel cell (SOFC) with the anode coated by a protective catalytic layer is demonstrated. Physico‐chemical and electrochemical characterizations of a Ni–Fe/gadolinium‐doped ceria (CGO) electrocatalyst forming the protective layer are reported. The anode layer was prepared by using a procedure that favors the interaction between Ni and Fe. Power densities approaching 0.3 W cm −2 for the SOFC cell fed with dry organic fuels were obtained. A time test was performed in the presence of a large flow rate of dry organic fuels under operating conditions (0.8 V) showing appropriate fuel flexibility for the device. The resistance to sulfur contamination was verified by feeding increasing amounts of H 2 S. The cell showed only moderate performance losses until 80 ppm of sulfur contaminant.