Article
Chemistry, Multidisciplinary
Hua Tong, Wenjing Hu, Min Fu, Chunli Yang, Zetian Tao
Summary: Nickel-doped barium ferrate with triple conducting ability is developed as cathodes for proton-conducting solid oxide fuel cells (H-SOFCs), showing impressive electrochemical performance at intermediate temperatures. The high electrocatalytic capacity of the nickel-doped barium ferrate cathode is attributed to its significant proton conductivity, which is enhanced by the presence of nickel and the regulated composition and structure of the composite cathode.
Article
Chemistry, Physical
Jisu Shin, Sungeun Yang, Ho-Il Ji, Sangbaek Park, Hyoungchul Kim, Ji-Won Son, Jong-Ho Lee, Byung-Kook Kim, Jongsup Hong, Kyung Joong Yoon
Summary: The study demonstrates high-performance SOFCs with an LNO-based cathode fabricated by a low-temperature processing route that suppresses harmful chemical reactions. The addition of sintering additives enhances the bonding between the cathode and electrolyte at temperatures significantly lower than typical processing temperatures, simplifying the cell structure and manufacturing process. These results highlight the importance of carefully engineering processing parameters to fully exploit the superior intrinsic properties of the LNO-based cathode.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Ceramics
Lele Wang, Yueyuan Gu, Hailu Dai, Yanru Yin, Lei Bi
Summary: BaSrInFeO5 (BSIF) is a new cathode material designed for proton-conducting solid oxide fuel cells (SOFCs) by modifying the Ba2In2O5 proton conductor with Sr and Fe cations. Sr doping improves the chemical stability, formation of oxygen vacancies, and proton mobility of the material. Experimental studies and first-principles calculations demonstrate that an H-SOFC using the BSIF cathode achieves a high peak power density of 1192 mW cm-2 at 700 oC, surpassing previous reports. This study suggests that derived cathode materials from less-studied Ba2In2O5 could offer new material selections for H-SOFCs.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2023)
Article
Chemistry, Physical
Katsuya Akimoto, Ning Wang, Chunmei Tang, Kai Shuto, SeongWoo Jeong, Sho Kitano, Hiroki Habazaki, Yoshitaka Aoki
Summary: This study found that adding functional layers between the electrolyte and cathode in solid oxide fuel cells can significantly reduce the cathodic reaction resistance. By using a functional layer, the cathode reaction area can be increased and the resistance can be decreased, resulting in higher power densities for the cells.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Materials Science, Ceramics
Keyou Shi, Yanru Yin, Zengming Tang, Shoufu Yu, Qiucai Zhang
Summary: A slight deficiency of Ba in BaCoO3 improves its chemical stability, protonation, and surface catalytic activity, resulting in enhanced fuel cell performance.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Multidisciplinary
Yufeng Li, Shoufu Yu, Hailu Dai, Yangsen Xu, Lei Bi
Summary: In this study, Sr-doped LaMnO3 (LSM) is coated with TiO2 to create the LSM + TiO2 cathode. It is found that TiO2 modifies the electronic structure at the LSM/TiO2 interface, allowing for charge accumulation and enhanced oxygen diffusion ability. Using LSM + TiO2 as a cathode for proton-conducting SOFCs operating at intermediate temperatures, the fuel cell demonstrates enhanced cell output performance and achieves the highest reported value for H-SOFCs with LSM cathodes.
SCIENCE CHINA-MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Xuan Yang, Yanru Yin, Shoufu Yu, Lei Bi
Summary: The BSCF+Co3O4 composite material is found to be a promising cathode for H-SOFCs, offering a solution to the thermal mismatch problem between the cathode and electrolyte. The addition of Co3O4 enhances the contact between the BSCF cathode and the electrolyte and also improves the catalytic activity of the cathode, resulting in significantly improved performance for H-SOFCs.
SCIENCE CHINA-MATERIALS
(2023)
Article
Materials Science, Ceramics
Ziye Zhang, Deti Xie, Jiupai Ni, Chengsheng Ni
Summary: BYC is a prototypical superconducting oxide with a superior mixed electronic and ionic conductivity, and Fe doping can enhance its electrochemical performance and power output.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Physical
Shuai Wu, Yinhua Liu, Chao Wang, Hailu Dai, Xianfen Wang, Lei Bi
Summary: The performance of LaNi0.5Fe0.5O3-delta material for H-SOFCs has been improved through a Zn-doping strategy, resulting in higher peak power density and lower polarization resistance.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Zhaoyu Zhong, Xiaoqian Xu, Zhenhao Zhang, Jiao Li, Xue Guo, Shigang Wu, Haibin Sun
Summary: This study successfully fabricated dense BZCYYb electrolytes at low temperatures using microwave sintering technique, effectively suppressing barium evaporation and promoting grain growth, leading to improved electrical conductivity. The microwave-sintered BZCYYb electrolyte exhibited excellent conductivity at 700 degrees C, indicating its potential application in SOFCs.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Green & Sustainable Science & Technology
Xiuqing Lv, Huili Chen, Wei Zhou, Si-Dian Li, Fangqin Cheng, Zongping Shao
Summary: In this study, the issue of CO2 poisoning in SrCoO3-delta 5-based materials was addressed by co-doping iron, zirconium, and yttrium. The newly formed material, SCFZY, exhibited significant CO2-tolerance as a cathode for solid oxide fuel cells (SOFCs), along with high power density and good durability.
Article
Materials Science, Ceramics
Yangsen Xu, Shoufu Yu, Yanru Yin, Lei Bi
Summary: LiCoO2, a material widely used in Li-ion batteries, was found to be suitable as a cathode material for H-SOFCs. The evaporation of Li in LiCoO2 led to the in-situ formation of a LiCoO2+Co3O4 composite, which greatly enhanced the performance of the cathode in H-SOFCs. The formation of Co3O4 due to Li-evaporation decreased the formation energy of oxygen vacancies, resulting in improved cathode performance.
JOURNAL OF ADVANCED CERAMICS
(2022)
Article
Materials Science, Ceramics
Rui Zhou, Yueyuan Gu, Hailu Dai, Yangsen Xu, Lei Bi
Summary: By synthesizing nominal PrxSr0.5MnO3-d materials, new Pr0.5Sr0.5MnO3-d (PSM50)+ PrO2_(x) composite cathodes for proton-conducting solid oxide fuel cells (SOFCs) were developed. The exsolution of PrO2_(x) particles was observed, increasing with the amount of Pr in PrxSr0.5MnO3-d. A Pr0.7Sr0.5MnO3-d (PSM70) cathode enabled the highest fuel cell output reported for H-SOFCs with manganate cathodes. The construction of a PSM50/PrO2 heterostructure interface accelerated the cathode oxygen reduction reaction (ORR) kinetics and demonstrated excellent electrochemical performance and chemical stability.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2023)
Article
Chemistry, Physical
Xi Xu, Yangsen Xu, Jinming Ma, Yanru Yin, Marco Fronzi, Xianfen Wang, Lei Bi
Summary: The study demonstrates that tailoring the electronic structure of perovskite oxide with Mo-doping leads to improvements in cathode materials for proton-conducting solid oxide fuel cells. The Mo-doping changes the electronic structure of the oxide, making the metal-oxygen bond less strong and the surface more active towards oxygen reduction, resulting in more feasible oxygen vacancy formation critical for protonation. The electric field induced by Mo-doping provides an additional driving force for proton movement, accelerating proton migration in the oxide and improving cathode performance.
JOURNAL OF POWER SOURCES
(2021)
Article
Electrochemistry
Alessandro Chiara, Giovanna Canu, Alessandro Longo, Candida Pipitone, Antonino Martorana, Francesco Giannici
Summary: Research found limited solid-state compatibility between calcium-doped lanthanum niobate and three perovskite cathode materials, with poor stability at high temperatures.
ELECTROCHIMICA ACTA
(2022)
Article
Chemistry, Physical
Sofia Perticarari, Elodie Grange, Tom Doizy, Yann Pellegrin, Eric Quarez, Kenichi Oyaizu, Antonio Jesus Fernandez-Ropero, Dominique Guyomard, Philippe Poizot, Fabrice Odobel, Joel Gaubicher
CHEMISTRY OF MATERIALS
(2019)
Article
Materials Science, Ceramics
M. L. Bouchetou, J. Poirier, L. Arbelaez Morales, T. Chotard, O. Joubert, M. Weissenbacher
CERAMICS INTERNATIONAL
(2019)
Article
Chemistry, Multidisciplinary
Alia Jouhara, Eric Quarez, Franck Dolhem, Michel Armand, Nicolas Dupre, Philippe Poizot
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2019)
Article
Materials Science, Ceramics
Charline Arrive, Thibaud Delahaye, Olivier Joubert, Gilles H. Gauthier
CERAMICS INTERNATIONAL
(2019)
Article
Materials Science, Ceramics
Charline Arrive, Thibaud Delahaye, Olivier Jouber, Gilles H. Gauthier
CERAMICS INTERNATIONAL
(2020)
Article
Electrochemistry
E. Pichot, M. Olivon, A. Perraud, O. Joubert, A. Le Gal La Salle
Article
Materials Science, Ceramics
Charline Arrive, Thibaud Delahaye, Olivier Joubert, Gilles H. Gauthier
CERAMICS INTERNATIONAL
(2020)
Article
Materials Science, Ceramics
K. Thabet, E. Quarez, O. Joubert, A. Le Gal La Salle
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2020)
Article
Electrochemistry
Julio Cesar Espinosa-Angeles, Eric Quarez, Louis-Beni Mvele Eye'a, Camille Douard, Antonella Iadecola, Hui Shao, Pierre-Louis Taberna, Patrice Simon, Olivier Crosnier, Thierry Brousse
Summary: The electrochemical behavior of LixWO3 was studied in this work. The material was synthesized under hydrothermal conditions and exhibited nanorod-like particles with growth along the c-axis. A specific capacity of 71 C.g(-1) was obtained at a rate of 2 mV.s(-1) in a 5 M LiNO3 aqueous electrolyte, with a charge/discharge cycle time of 10 minutes. The charge storage mechanism was investigated using electrochemical quartz crystal microbalance (EQCM) and synchrotron operando X-ray absorption spectroscopy (XAS), revealing a desolvation process upon Li+ intercalation and reversible reduction/oxidation of tungsten cations during charge/discharge cycling.
Article
Chemistry, Inorganic & Nuclear
Lou Bernard, Alia Jouhara, Eric Quarez, Yanis Levieux-Souid, Sophie Le Caer, Pierre Tran-Van, Steven Renault, Philippe Poizot
Summary: Organic electrode materials offer opportunities for cost-effective and environmentally friendly rechargeable batteries. However, the electrochemical performance of organic materials also relies on crystal packing. Therefore, further efforts in crystal chemistry are needed to make organic materials more efficient.
Article
Chemistry, Multidisciplinary
Eric Quarez, Alia Jouhara, Stephane Grolleau, Franck Dolhem, Nicolas Dupre, Philippe Poizot
Article
Chemistry, Multidisciplinary
Jean-Marie Doux, Nicolas Stephant, Annie Le Gal La Salle, Olivier Joubert, Dominique Guyomard, Eric Quarez
Article
Chemistry, Multidisciplinary
Louis Sieuw, Alia Jouhara, Eric Quarez, Chloe Auger, Jean-Francois Gohy, Philippe Poizot, Alexandru Vlad
