Article
Materials Science, Ceramics
Saeed Ur Rehman, Sanaullah Qamar, Muhammad Haseeb Hassan, Hye-Sung Kim, Rak-Hyun Song, Tak-Hyoung Lim, Jong-Eun Hong, Seok-Joo Park, Dong-Woo Joh, Seung-Bok Lee
Summary: Researchers have developed a new infiltration agent to manufacture high-performing air electrodes with nanostructures for solid oxide fuel cells, which can potentially reduce the operating temperature. The new process involves the thermal decomposition of trichloroacetic acid in water, causing metal ions in the solution to crystallize out as slightly soluble carbonates. This eliminates the need for high-temperature calcination after each infiltration step, resulting in improved performance and durability during stability tests.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2023)
Article
Nanoscience & Nanotechnology
Weilin Zhang, Yucun Zhou, A. Mohammed Hussain, Dong Song, Yohei Miura, Yu Chen, Zheyu Luo, Nicholas Kane, Yinghua Niu, Nilesh Dale, Yosuke Fukuyama, Meilin Liu
Summary: This study focuses on the development of durable nanostructured electrodes for solid oxide fuel cells (SOFCs) using a simple and cost-effective method. The symmetrical cells and single cells fabricated in this work exhibit good performance and stability, indicating a promising pathway for high-performance and durable SOFCs powered by natural gas.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Physical
Javier Zamudio-Garcia, Jose M. Porras-Vazquez, Enrique R. Losilla, David Marrero-Lopez
Summary: In this study, LCM-CGO nanocomposite layers with different LCM contents were prepared using a spray-pyrolysis deposition method and evaluated as air and fuel electrodes for solid oxide fuel cells. The nanocomposite electrode exhibited a nanoscale microstructure and a combination of high electronic and ionic conductivity, leading to efficient and durable symmetrical electrodes.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Chemistry, Physical
Andrea Bedon, Jean Paul Viricelle, Mathilde Rieu, Simone Mascotto, Antonella Glisenti
Summary: A brownmillerite-based nanocomposite cathode for Single-Chamber Solid Oxide Fuel Cells was developed in this study. Different cell configurations were studied in air and methane/oxygen mixture, demonstrating the feasibility of developing low-cost, high-selectivity electrodes and achieving an efficiency of 25%.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Seona Kim, Guntae Kim, Arumugam Manthiram
Summary: Recent study on atmospheric adaptive materials that can change crystal structure based on environment, using Dy doping strategy can significantly improve the performance of solid oxide cells, especially 10% Dy doped Pr0.5Ba0.5MnO3-delta shows the best catalytic and electrochemical properties among various doping amounts.
JOURNAL OF POWER SOURCES
(2021)
Article
Chemistry, Physical
Kang Xu, Feng Zhu, Mingyang Hou, Canan Li, Hua Zhang, Yu Chen
Summary: Coating the surface of a nickel-based anode with cerium oxide nanoparticles can activate and stabilize ammonia fuel, leading to improved efficiency and durability of solid oxide fuel cells.
Article
Chemistry, Physical
Kang Xu, Feng Zhu, Mingyang Hou, Canan Li, Hua Zhang, Yu Chen
Summary: This study reports on the surface activation and stabilization of a Ni-based cermet anode for efficient and durable operation on ammonia fuel. The surface coating of CeO2-delta nanoparticles significantly enhances the reaction activity and stability, leading to improved performance compared to bare anodes.
Article
Chemistry, Physical
Jiongyuan Huang, Quan Liu, San Ping Jiang, Ling Zhao, Na Ai, Xin Wang, Yanqun Shao, Chengzhi Guan, Huihuang Fang, Yu Luo, Kongfa Chen
Summary: The infiltration of BaCO3 nanoparticles improves the performance of LSCF cathodes and enhances their tolerance to Cr species.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Materials Science, Ceramics
Yihan Ling, Tian Li, Yang Yang, Yunfeng Tian, Xinxin Wang, Kaixuan Chen, Dehua Dong, Yan Chen, Koji Amezawa
Summary: Iron-based perovskite-like oxides with oxygen vacancies were studied as both anode and cathode materials for symmetrical solid oxide fuel cells (SSOFCs), showing enhanced performance by partially substituting Sr with La to improve electrical conductivity and electro-catalytic activity. This suggests promising applications of these new materials in intermediate temperature SSOFCs.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Physical
Jiayan Teng, Tian Xia, Qiang Li, Liping Sun, Hui Zhao
Summary: Praseodymium-deficient Pr1.90_.Ce0.1CuO4 oxides are evaluated as potential oxygen electrodes for solid oxide fuel cells (SOFCs). The introduction of Pr-deficiency promotes the oxygen vacancy concentration, improving electrocatalytic activity for oxygen reduction reaction (ORR). The Pr1.75Ce0..1CuO4 (P1.75CC) component demonstrates excellent electrode performance with low polarization resistance (0.025 U cm2) and high peak power density (1.11 W cm_2) at 700℃.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Multidisciplinary
Zhishan Li, Meilan Peng, Yingru Zhao, Jianhui Li, Yifei Sun
Summary: This study presents a facile design principle to directly grow highly dispersed Co nanoparticles onto ion-conducting scaffolds, achieving nanoscale active centers. The Co-socketed BaCe0.7Zr0.2Y0.1O3-delta perovskite air electrode with an optimal Co content of 10 mol% shows significantly improved oxygen activation performance and reduced thermal expansion coefficient mismatch with BCZY electrolytes. The architecture of exsolved Co on BCZY possesses a higher concentration of surface oxygen vacancy, benefiting the kinetics of ion diffusion and oxygen absorption.
Article
Thermodynamics
Lin Ge, Keqiang Sun, Yiheng Gu, Qing Ni, Xiaogu Huang
Summary: By incorporating praseodymium oxide nano-catalysts into conventional air electrodes, the polarization resistance can be significantly reduced, leading to greatly improved performance of solid oxide cells. The electrolysis current density and power output have both significantly increased as a result.
ENERGY CONVERSION AND MANAGEMENT
(2021)
Review
Materials Science, Ceramics
Teruhisa Horita
Summary: This paper discusses the crucial challenge of prolonged durability in Solid Oxide Fuel Cell systems, focusing on volatile chromium species poisoning. Through chemical reactions and electrochemical reduction, the interactions between perovskite oxide cathode surface and volatile Cr species are studied. The paper proposes solutions and analyzes recovery mechanisms, providing insights for new material combinations in next-generation SOFCs.
CERAMICS INTERNATIONAL
(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
Materials Science, Ceramics
Woosuck Shin, Yuki Yamaguchi, Mirano Horie, Hiroyuki Shimada, Katsuhiro Nomura, Hirofumi Sumi
Summary: This study investigates the application of porous metals in solid oxide fuel cells using machine learning methods. The process conditions for oxide layers and metal particles are examined, and it is found that random forest, a multi-output method, predicts the target variables with higher accuracy compared to neural network. Additionally, the relationship between the microstructure of metal supported cells and their power generation performance is discussed.
CERAMICS INTERNATIONAL
(2023)
