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)
Review
Chemistry, Multidisciplinary
Kairat A. Kuterbekov, Alexey Nikonov, Kenzhebatyr Zh Bekmyrza, Nikita B. Pavzderin, Asset M. Kabyshev, Marzhan M. Kubenova, Gaukhar D. Kabdrakhimova, Nursultan Aidarbekov
Summary: This review summarizes various types of solid oxide fuel cells (SOFC) and describes their structural features, advantages, and disadvantages. Among the well-studied dual-chamber SOFC, those with anode-supported design and oxygen-ion conducting electrolyte are found to be the most suitable for operation at temperatures below 800 degrees C. Other promising types for low-temperature operation include SOFC with proton-conducting electrolyte and electrolyte-free fuel cells, although further research and development are needed for commercialization.
Article
Materials Science, Ceramics
Nur Wardah Norman, Mahendra Rao Somalu, Andanastuti Muchtar, Nurul Akidah Baharuddin, S. A. Muhammed Ali, Abul Kalam Azad, Jarot Raharjo, Deni Shidqi Khaerudini, Nigel P. Brandon
Summary: Proton-conducting Sr0.6Ba0.4Ce0.9M0.1O3-8 (M = In, Pr, Ga) electrolytes without Zr were synthesized using the glycine-nitrate process for intermediate-temperature solid oxide fuel cell (SOFC) applications. The electrolyte powders were analyzed for thermal decomposition and crystalline structure. The morphological structure, chemical stability, and proton conductivity of the electrolyte pellets were examined. It was determined that Sr0.6Ba0.4Ce0.9In0.1O3-8 is the best electrolyte in terms of sinterability, chemical stability, and proton conductivity.
CERAMICS INTERNATIONAL
(2023)
Article
Thermodynamics
Libin Lei, Yingyu Mo, Yue Huang, Ruiming Qiu, Zhipeng Tian, Junyao Wang, Jianping Liu, Ying Chen, Jihao Zhang, Zetian Tao, Bo Liang, Chao Wang
Summary: Proton-conducting solid oxide fuel cells (H-SOFCs) are highly efficient energy devices that operate at intermediate temperatures due to their high ionic conductivities. However, the role of oxygen-ionic current (jO) in proton-conducting electrolytes has been overlooked. This study presents a theoretical analysis, considering various factors, to evaluate jO in H-SOFCs. The modeling results demonstrate that jO is mainly influenced by fuel humidity, and reducing it can improve the power density of H-SOFCs.
Article
Chemistry, Physical
Atif Khan Niaz, Young Je Kim, Anil V. Virkar, Jun-Young Park, Hyung-Tae Lim
Summary: A bilayer composite electrolyte is designed to improve the stability of co-ionic conducting solid oxide fuel cells (SOFCs) in a cell imbalanced stack. Local electronic conduction is identified as a crucial factor for the durability of co-ionic SOFCs under negative voltage operation. The bilayer configuration is suggested as a practical solution to protect the cells in a cell-imbalanced stack.
JOURNAL OF POWER SOURCES
(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
Xing Chen, Huilin Zhang, Yongyong Li, Jiezhen Xing, Ze Zhang, Xiao Ding, Bo Zhang, Juan Zhou, Shaorong Wang
Summary: The study successfully obtained an 80 mm x 80 mm anode-supported proton-conducting solid oxide fuel cell through combining multi-layer aqueous-based tape casting and co-sintering technology. The cell with a homogeneous microstructure achieved a performance of 389 mW cm(-2) at 800 degrees C using 3% humidified hydrogen as fuel and normal air as oxidant, providing theoretical and statistical accumulation and reference for future assembly of large-scale PCFCs.
JOURNAL OF POWER SOURCES
(2021)
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
Chemistry, Multidisciplinary
Haikun Guo, Leibo Li, Xiaolei Xu, Minghao Zeng, Shengchao Chai, Lixin Wu, Haolong Li
Summary: Semi-solid bulk supramolecular polymer (SP) materials were fabricated by using polyoxometalate (POM) nanoclusters as supramolecular cross-linkers to solidify a deep eutectic solvent (DES). The resulting materials exhibited high proton conductivity and mechanical strength, and formed a stable electrode-electrolyte interface by a melt-infiltration strategy, leading to improved performance in supercapacitors.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Materials Science, Ceramics
Yuexia Ji, Xinchao Yu, Jiafeng Cao
Summary: The study fabricated a thin perovskite-type ceramic membrane with good stability and high performance, providing important information to understand the nature of the ionic conduction of perovskite-type oxides.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Ceramics
Dongyoung Kim, Seung Jae Son, Minseok Kim, Hee Jung Park, Jong Hoon Joo
Summary: The study reveals that PBF exhibits proton conductivity at intermediate temperatures and excellent performance and stability in symmetrical PCFCs, making it a promising alternative material.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2021)
Review
Electrochemistry
Zhiruo Tao, Xi Xu, Lei Bi
Summary: The application of Density Functional Theory (DFT) calculations in proton-conducting solid oxide fuel cells has shown promising results in predicting material properties and enhancing electrochemical performance, but limitations have also been observed. This mini-review focuses on exploring new cathode materials with high electrochemical performance and aims to bring attention to the interesting method.
ELECTROCHEMISTRY COMMUNICATIONS
(2021)
Article
Materials Science, Ceramics
Akira Kishimoto, Taiga Umemura, Shinya Kondo, Takashi Teranishi
Summary: The mechanical strength of 10GDC was increased after contact reduction treatment, resulting in the formation of a surface compression layer. The conductivity of the material was not affected. Co-doping Gd and Sm improved the strength and conductivity compared to 10GDC and 20GDC.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Physical
Yan Cao, Hayder A. Dhahad, Yu-Liang Sun, Maghsoud Abdollahi Haghghi, Mostafa Delpisheh, Hassan Athari, Naeim Farouk
Summary: This study investigates the impact of changes in nitrogen ratio on the performance of fuel cells, finding that with increasing input nitrogen ratio, the voltage output, energy and exergy efficiencies, electricity generation rate, and exergoeconomic factor of the applications decrease, while the unit cost of electricity and carbon dioxide emission increase.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Thermodynamics
Mohsen Sadeghi, Moharram Jafari, Yashar S. Hajimolana, Theo Woudstra, P. V. Aravind
Summary: This study aimed to analyze and compare the thermodynamic performance and size of two types of solid oxide fuel cell (SOFC) systems, revealing that the SOFC-H system based on proton-conducting electrolyte shows higher efficiency and performance in certain aspects, making it favorable to use thin cells to improve efficiency.
ENERGY CONVERSION AND MANAGEMENT
(2021)
Article
Chemistry, Physical
Yasuharu Kawabata, Tatsuya Nakajima, Kazuo Nakamura, Toru Hatae, Yuya Tachikawa, Shunsuke Taniguchi, Yoshio Matsuzaki, Kazunari Sasaki
JOURNAL OF POWER SOURCES
(2020)
Article
Chemistry, Physical
K. Takino, Y. Tachikawa, K. Mori, S. M. Lyth, Y. Shiratori, S. Taniguchi, K. Sasaki
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2020)
Article
Chemistry, Physical
Yuto Wakita, Yuya Tachikawa, Hironori Nakajima, Shigeru Hamada, Kohei Ito
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2020)
Article
Engineering, Environmental
Shu Hikima, Martin Keller, Hiroki Matsuo, Yoshio Matsuzaki, Junichiro Otomo
Summary: By developing highly efficient carriers for hydrogen production through methane cracking and carbon dioxide activation in a chemical looping system, the Fe-doped BZY carrier (BZFY40) exhibits high activity and durability for carbon deposition and removal cycles. Surface observation, kinetic analysis, and reactions with carbon dioxide demonstrate the effectiveness of the BZFY40 carrier in maintaining stable cycle reactions and providing an efficient system design for carbon dioxide-free hydrogen generation.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Physical
Takuro Fukumoto, Naoki Endo, Katsuya Natsukoshi, Yuya Tachikawa, George F. Harrington, Stephen M. Lyth, Junko Matsuda, Kazunari Sasaki
Summary: Reversible solid oxide cells (r-SOCs) have high efficiency for power generation and hydrogen generation, making them important for supporting renewable energy. The exchange current density is a crucial parameter for quantifying electrode performance. This study investigates the microstructure and apparent exchange current density of different fuel and air electrodes under varying temperature, fuel humidification, and oxygen concentration conditions.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Kohei Matsumoto, Yuya Tachikawa, Stephen M. Lyth, Junko Matsuda, Kazunari Sasaki
Summary: Ni-Co alloy cermet anodes are highly attractive for the development of robust solid oxide fuel cells (SOFCs) due to their high durability, comparable electrochemical performance, and protection against further oxidation provided by cobalt-rich oxide layers on the surface of the alloy particles.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Applied
Muhammad Irfan Maulana Kusdhany, Zhongliang Ma, Albert Mufundirwa, Hai-Wen Li, Kazunari Sasaki, Akari Hayashi, Stephen Matthew Lyth
Summary: In this study, hierarchically porous and microporous nitrogen-doped carbon foams were synthesized from metal alkoxides via one-step thermal decomposition. The carbon foams exhibited high hydrogen uptake and CO2 uptake, with the nitrogen-doped carbon foam showing slightly improved hydrogen uptake at lower pressure compared to the carbon foam. This work demonstrates the potential of these low-cost metal alkoxide-derived carbon foams for gas storage and separation applications.
MICROPOROUS AND MESOPOROUS MATERIALS
(2022)
Article
Chemistry, Physical
Yasir Arafat Hutapea, Masamichi Nishihara, Zulfi Al Rasyid Gautama, Albert Mufundirwa, Stephen Matthew Lyth, Takeharu Sugiyama, Mayumi Nagayama, Kazunari Sasaki, Akari Hayashi
Summary: In this study, a simple method to reduce oxygen transport resistance (OTR) in fuel cells was demonstrated by mixing a high oxygen permeable polymer and a commercial Nafion(R) ionomer. The resulting blend ionomers, although having lower proton conductivity, improved fuel cell performance in high current density regions.
JOURNAL OF POWER SOURCES
(2023)
Article
Materials Science, Ceramics
Hiroki Matsuo, Kenta Nakane, Yoshio Matsuzaki, Junichiro Otomo
Summary: This study investigates the performance of anode-supported PCFCs with different electrolyte structures and confirms that using a BZY vertical bar LWO bilayer can achieve higher OCV and energy efficiency. The experimentally confirmed results show that the BZY vertical bar LWO cell has an OCV of 1.01V, demonstrating the effectiveness of the thin LWO hole-blocking layer in improving the performance of anode-supported PCFCs.
JOURNAL OF THE CERAMIC SOCIETY OF JAPAN
(2021)
Article
Electrochemistry
Yusuke Ishibashi, Kohei Matsumoto, Shotaro Futamura, Yuya Tachikawa, Junko Matsuda, Stephen M. Lyth, Yusuke Shiratori, Shunsuke Taniguchi, Kazunari Sasaki
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2020)
Article
Electrochemistry
D. Kawachino, M. Yasutake, Z. Noda, J. Matsuda, S. M. Lyth, A. Hayashi, K. Sasaki
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2020)
Article
Electrochemistry
Yoshio Matsuzaki, Yuya Tachikawa, Yoshitaka Baba, Koki Sato, Gen Kojo, Hiroki Matsuo, Junichiro Otomo, Hiroshige Matsumoto, Shunsuke Taniguchi, Kazunari Sasaki
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2020)
Article
Electrochemistry
Masahiro Yasutake, Daiki Kawachino, Zhiyun Noda, Junko Matsuda, Stephen M. Lyth, Kohei Ito, Akari Hayashi, Kazunari Sasaki
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2020)