Article
Chemistry, Physical
Chencheng Ye, Susu Bi, Pengfei Liao, Yanni Huang, Xiao Lin, Yu Wang, Linjuan Zhang, Jian-Qiang Wang
Summary: In this study, an alternative method for designing a highly active and stable fuel electrode for solid oxide cells (SOCs) application is proposed by improving the slurry dispersant effect. By optimizing the dispersants within the ink, the microstructure can be improved, leading to improved electrochemical performance of the resulting SOCs.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Materials Science, Ceramics
Sara Paydar, Bin Zhu, Jing Shi, Nabeela Akbar, Quazi Arif Islam, Sining Yun, Akbar Muhammad, Mohammad Hossein Paydar, Yan Wu
Summary: Proton conducting ceramic fuel cells (PCFCs) are getting more attention due to their lower operating temperatures (<600 degrees C) and affordable ionic conductivity. CeO2 nanosheets mainly exposed to the (111) plane exhibit super proton conductivity and maximum power density. The difference in Ce3+/Ce4+ ratios and oxygen vacancies on the surface play key roles in proton transport. The theoretical calculation shows that protons move more easily on the CeO2 (111) facet with smaller binding energy and lower energy barrier for H-O formation, leading to superior proton conduction for the nanosheet morphology over nanoparticles.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Physical
Rubayyat Mahbub, Tim Hsu, William K. Epting, Gillian Nolan, Yinkai Lei, Noel T. Nuhfer, Randell B. Doane, Harry W. Abernathy, Gregory A. Hackett, Shawn Litster, Anthony D. Rollett, Paul A. Salvador
Summary: The study explores the morphological differences in microstructures of commercial SOFC electrodes and quantifies relative microstructural changes in Ni and pore distributions, showing that scaled-adjusted electrodes have comparable ANOVA sub-volumes.
JOURNAL OF POWER SOURCES
(2021)
Article
Chemistry, Physical
Long Q. Le, Charlie Meisel, Carolina H. Hernandez, Jake Huang, Youdong Kim, Ryan O'Hayre, Neal P. Sullivan
Summary: Proton-conducting ceramics play an important role in electrochemical electricity generation, energy storage, and fuels synthesis. The study finds that the durability of protonic-ceramic electrolyzers is superior to fuel cells. The introduction of an interlayer greatly reduces the degradation rate in both fuel cells and electrolyzers.
JOURNAL OF POWER SOURCES
(2022)
Article
Engineering, Chemical
Na Rae Kang, Thanh Huong Pham, Hannes Nederstedt, Patric Jannasch
Summary: Phosphonated aromatic polymers functionalized with highly acidic perfluorophenylphosphonic acid show high conductivity, efficient ionic clustering, excellent proton conductivity, and outstanding thermal stability, making them attractive for applications in catalyst layers and proton exchange membranes.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Thermodynamics
Jaroslaw Milewski, Arkadiusz Szczesniak
Summary: This research aims to investigate the off-design performance of H+SOFC through numerical simulations. The study focuses on the design point and off-design maps of the cell, providing useful results for selecting operational strategies for micro-CHP units based on H+SOFC.
APPLIED THERMAL ENGINEERING
(2022)
Article
Chemistry, Physical
Fan He, Qinning Gao, Zuoqing Liu, Meiting Yang, Ran Ran, Guangming Yang, Wei Wang, Wei Zhou, Zongping Shao
Summary: The use of a new Ba(Zr0.1Ce0.7Y0.1Yb0.1)(0.95)Pd0.05O3-delta perovskite as the key component in ammonia-fueled PCFCs improves catalytic activity for NH3 decomposition and increases proton conductivity, leading to higher power density and stability.
ADVANCED ENERGY MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
In -Ho Kim, Dae-Kwang Lim, Yeon Namgung, Hohan Bae, Jun-Young Park, Sun-Ju Song
Summary: In this study, the electrochemical and transport properties of a perovskite-type proton conductor BZCYYb5311 were evaluated. The material showed high proton conductivity and exceptional chemical stability. It exhibited a proton conductivity of 98% compared to ionic conductivity at 600°C. The maximum power density in fuel cell mode and current density in electrolysis mode were calculated, indicating the potential of BZCYYb5311 as a fuel cell material.
Article
Chemistry, Physical
Libin Lei, Yongzhen Ou, Ruiming Qiu, Wenchao Lian, Yingyu Mo, Jihao Zhang, Zhicong Shi, Jianping Liu, Chao Wang, Ying Chen
Summary: An electrochemical model of PCECs was developed in this study to evaluate and compare the performance in different operating modes, revealing that the hydrogen pump mode achieves higher energy efficiency. Additionally, introducing steam to the anode side was found to have a positive impact on the electrochemical performance of PCECs.
JOURNAL OF POWER SOURCES
(2022)
Review
Chemistry, Physical
Idris Temitope Bello, Shuo Zhai, Siyuan Zhao, Zheng Li, Na Yu, Meng Ni
Summary: Proton-conducting solid oxide fuel cells (P-SOFCs) show great potential for energy conversion with high efficiency and temperature adaptability, but research and development in this field are still limited globally.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Chanho Kim, Hyungjun Lee, Inyoung Jang, Sungmin Kim, Hoyeon Jung, Myeungwoo Ryu, Jeongheon Kim, Dongsoo Lee, Heesung Yoon, Ungyu Paik, Taeseup Song
Summary: This study dramatically improved the power generation performance of proton conducting fuel cells (PCFCs) by forming a triple conducting material, BCFZY, on the electrodes. The use of BCFZY nanoparticles provided a charge passage and effectively expanded the reaction site, resulting in an enhanced power density of PCFCs.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Ruoqi Tang, Xin Men, Liling Zhang, Lei Bi, Zhenning Liu
Summary: A new honeycomb-shaped LSFP material is proposed as a cathode for H-SOFCs, which offers a higher surface area without changing the crystal or electronic structure. The honeycomb LSFP cathode shows higher power density and improved ORR, making it a promising option for H-SOFCs.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
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
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
Materials Science, Multidisciplinary
Shuai Wu, Xi Xu, Xiaomei Li, Lei Bi
Summary: The Sr and Zn co-doped LaMnO3 (LSMZ) cathode demonstrates superior performance and stability in proton-conducting solid oxide fuel cells (H-SOFCs), outperforming all reported LSM-based H-SOFCs; LSMZ is stable against CO2 and exhibits good long-term stability, paving a new way for research on intermediate temperature SOFC cathodes.
SCIENCE CHINA-MATERIALS
(2022)
