Journal article
Enhanced Performance of Sm 0.2 Ce 0.8 O 2-δ -Based SOFCs by Acid Etching of Electrolyte
Journal of the Electrochemical Society, v 172(4), p044508
09 Apr 2025
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
Based on the acid etching strategy proposed in 2022, a novel treating method is developed and employed in the Sm0.2Ce0.8O2-δ (SDC) based SOFC. After 25 min acid treatment, the surface roughness of SDC increases by 60% while the peeling strength of cathode/electrolyte interface can be enhanced by 129%. The peak power density at 923 K reaches 1.392 Wcm-2, 30% higher than that (1.067 Wcm-2) without treatment. Compared with little degradation observed during working at 873 K for 200 h, apparent performance degradation of single cells can be observed during thermal cycling at 673-873 K. However, the thermal cycling stability can be markedly improved by the 25 min acid etch. Combined with the electrochemical impedance spectroscopy and microstructure observation, this suggests that the significantly enhanced performance should be caused by the synergy effect of both revitalized interface and increased bonding area between cathodes and electrolytes.
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Details
- Title
- Enhanced Performance of Sm 0.2 Ce 0.8 O 2-δ -Based SOFCs by Acid Etching of Electrolyte
- Creators
- Ruiwei CuiFei LuMengsha LiLei ShiBin Cai
- Publication Details
- Journal of the Electrochemical Society, v 172(4), p044508
- Publisher
- ELECTROCHEMICAL SOC INC
- Number of pages
- 8
- Grant note
- National Natural Science Foundation of China https://doi.org/10.13039/501100001809: U2004167, 11974316 National Natural Science Foundation of China
This work was supported by the National Natural Science Foundation of China (Grant Numbers: U2004167 and 11974316), we really appreciate the Center of Advanced Analysis & Gene Sequencing, Zhengzhou University for its equipment support.
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Electrical and Computer Engineering
- Web of Science ID
- WOS:001462727300001
- Scopus ID
- 2-s2.0-105002704220
- Other Identifier
- 991022047291604721
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InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Web of Science research areas
- Electrochemistry
- Materials Science, Coatings & Films