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Fe-Doped Ceria-Based Ceramic Cathode for High-Efficiency CO2 Electrolysis in Solid Oxide Electrolysis Cell.
Zhang, Lijie; Jiang, Yunan; Zhu, Kang; Shi, Nai; Rehman, Zohaib Ur; Peng, Ranran; Xia, Changrong.
Afiliación
  • Zhang L; CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui, 230026, China.
  • Jiang Y; CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui, 230026, China.
  • Zhu K; Energy Materials Center, Anhui Estone Materials Technology Co. Ltd, 2-A-1, No. 106, Chuangxin Avenue, Hefei, Anhui, 230088, P. R. China.
  • Shi N; CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui, 230026, China.
  • Rehman ZU; INAMORI Frontier Research Center, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan.
  • Peng R; CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui, 230026, China.
  • Xia C; CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui, 230026, China.
Small Methods ; : e2301686, 2024 Feb 12.
Article en En | MEDLINE | ID: mdl-38345267
ABSTRACT
In the quest for sustainable energy solutions, solid oxide electrolysis cell (SOEC) emerges as a key technology for converting CO2 into fuels and valuable chemicals. This work focuses on pure ceramic Fex Sm0.2 Ce0.8 O2- δ (xFe-SDC) as the fuel electrodes, and Sr-free ceria-based ceramic electrodes can be successfully constructed for x ≤ 0.05. The incorporation of Fe into the ceria lattice increases the oxygen vacancy concentration and promotes the formation of catalytic sites crucial for the CO2 reduction reaction (CO2 RR). Density functional theory calculations indicate that Fe enhances electrochemical performance by decreasing the CO2 RR energy barrier and facilitating oxygen ion diffusion. At 800 °C and 1.5 V, single cells with 0.05Fe-SDC cathodes manifest attractive performance, attaining current densities of -1.98 and -2.26 A cm-2 under 50% CO2 /CO and pure CO2 atmospheres, respectively. These results suggest the great potential of xFe-SDC electrodes as promising avenues for high-performance fuel electrodes in SOEC.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Small Methods Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Alemania
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Small Methods Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Alemania