M. Lo Faro, D. La Rosa
This study investigates the electrochemical behavior of two different low Ni content (10 wt.%) anode catalysts used in solid oxide fuel cells (SOFCs) operating at intermediate temperatures of 800 °C, fed with dry propane. The catalysts were synthesized by impregnating a Ni precursor on two different oxide supports, namely gadolinia doped ceria (CGO) and La0.6Sr0.4Fe0.8Co0.2O3 perovskite, and then thermally treated at 1100 °C for 2 hours. A composite catalytic layer was formed by mixing the Ni-modified perovskite with CGO powder and depositing it on a CGO electrolyte. In-situ reduction of the anode was conducted in hydrogen for 2 hours during cell conditioning at 800 °C. The electrochemical performance was systematically evaluated over a 100-hour operational period in dry propane, revealing that the Ni-modified perovskite catalyst exhibited significantly superior performance compared to the Ni/CGO anode, achieving a power density of approximately 300 mW cm−2. Structural investigations post-SOFC operation indicated modifications in the perovskite structure, including the presence of a La2NiO4 phase, while the Ni/CGO anode suffered from catalyst deactivation due to carbon deposit formation resulting from metallic Ni.
@article{89d20cfe-2bb0-4dc2-a117-d3f4c0ed2b9e,
title={Electrochemical behaviour of propane-fed solid oxide fuel cells based on low Ni content anode catalysts},
author={M. Lo Faro and D. La Rosa},
year={2009},
language={en}
}TY - JOUR TI - Electrochemical behaviour of propane-fed solid oxide fuel cells based on low Ni content anode catalysts AU - M. Lo Faro AU - D. La Rosa PY - 2009 LA - en ER -
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