Cesium-Promoted Nickel-Ceria Anodes for Enhanced Stability and Performance in Low-Temperature Solid Oxide Fuel Cells
Source abstract
Abstract
Solid oxide fuel cells (SOFCs) are a promising energy technology, but their performance is limited by high operating temperatures and material degradation. While significant research has focused on improving anode stability at high temperatures, less attention has been given to low-temperature (≤450 °C) performance, where the anode’s role becomes more critical. This study investigates the effect of a cesium-based promoter, introduced as a CsNO 3 aqueous solution or powder onto gadolinium-doped ceria and nickel composite (Ni-GDC) anodes, for SOFCs in the 300 to 450 °C range. The Cs-promoted anode exhibits up to 76% improvement in performance at 350 °C with 3% humidified hydrogen fuel compared to a conventional Ni-GDC anode. It also demonstrates exceptional stability, maintaining over 50 mW/cm 2 at 450 °C and 0.8 V for 15 h without carbon coking when using 3% humidified methane fuel. These results highlight the pivotal role of the anode in low-temperature operation and showcase the potential of Cs promoters to significantly enhance the performance and durability of SOFC electrodes.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Advancements in Solid Oxide Fuel Cells · Electrocatalysts for Energy Conversion · Chemical Looping and Thermochemical Processes
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Hydrogen Energy Laboratory
Korea Electric Power Corp. Research Institute
Department of Materials Science and Engineering, Northwestern University, 2220 Campus Drive, Evanston, Illinois 60208, United States
Research Institute of Advanced Materials, Seoul National University (SNU), 1, Gwanak-ro, Gwank-gu, Seoul 08826, Republic of Korea
School of Chemistry and Energy, Sungshin Women’s University, 55, 76 ga-gil, Dobong-ro, Gangbuk-gu, Seoul 01133, Republic of Korea
Department of Future Energy Engineering
SungKyunKwan University
SKKU Institute of Energy Science and Technology (SIEST)
Sungkyunkwan University
Korea Basic Science Institute, 169-148, Gwahak-ro, Yuseong-gu, Daejeon 34133, Republic of Korea
High Temperature Electrolysis Laboratory, Korea Institute of Energy Research (KIER), Gajeong-ro, Yuseong-gu, Daejeon 34129, Republic of Korea
Department of Materials Science and Engineering, Seoul National University (SNU), 1, Gwanak-ro, Seoul 08826, Republic of Korea
Funding
Ministry of Science and ICT, South Korea · Seoul National University
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