Article
Chemistry, Physical
Tugce Ucun, Murat Murutoglu, Ozge Ulasan, Emrah Demirkal, Aligul Buyukaksoy, Yahya Kemal Tur, Huseyin Yilmaz
Summary: In this study, solid oxide fuel cells were fabricated using the cold sintering process for the first time, achieving crack-free electrolyte/anode interfaces at much lower temperatures than traditional methods. The use of cold sintering process limited grain growth in the anode and enhanced triple-phase boundary densities. The SOFCs constructed showed promising open-circuit potentials and power densities, with potential for further improvements by decreasing anode thickness.
ACS APPLIED ENERGY MATERIALS
(2021)
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
Chemistry, Physical
Faze Wang, Yueming Xing, Enyi Hu, Ting Dong, Zheng Jiang, Jingjing Liu, Hao Wang, Fan Yang
Summary: Semiconductor-based electrolytes provide advantages in terms of high ionic conductivity and power output at low temperatures. This study successfully developed a p-n heterojunction composite electrolyte, achieving high power output while suppressing electronic conduction through adjusting the composition of the components.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Electrochemistry
Qingping Fang, Norbert H. Menzler, Ludger Blum
Summary: It has been found that the LSC cathode shows more promising results in SOFCs compared to the LSCF cathode, with higher ionic conductivity and better resistance to chromium poisoning. Through long-term stack operation and various analyses, the degradation behavior of the stack due to chromium poisoning can be evaluated.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2021)
Article
Materials Science, Ceramics
Qifei Zhang, Yunting Hou, Li Chen, Lijun Wang, Kuochih Chou
Summary: The study found that adding GDC material in anode-supported H-SOFC can increase oxygen vacancy concentration and three-phase reaction interface to improve oxygen adsorption and dissociation rate at low temperatures, thereby enhancing cell performance and stability.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Multidisciplinary
Cheng Cheng Wang, Mortaza Gholizadeh, Bingxue Hou, Xincan Fan
Summary: The study investigated the integrated Cr and S poisoning of LSCF cathodes in solid oxide fuel cells, showing that such poisoning can lead to increased polarization and ohmic resistance, resulting in performance degradation of the cell. The degradation phenomenon caused by integrated Cr and S deposition was found to be more severe, indicating its higher unpredictability.
Article
Chemistry, Physical
Zefeng Heng, Yanhong Wan, Changrong Xia
Summary: This study demonstrates that the introduction of Ca element into La0.6Sr0.4Fe0.8Mn0.2O3-delta perovskite can stabilize its structure, improve thermal expansion compatibility with the electrolyte, increase oxygen vacancy concentration and content of adsorbed oxygen species. It also enhances the electrochemical performance as a fuel electrode, reducing interfacial polarization resistance, increasing peak power density, and showing high current density.
JOURNAL OF POWER SOURCES
(2022)
Article
Chemistry, Physical
Jinsi Yuan, Yuzhu Chen, Jinxing Sun, Yue Wang, Meng Lin, Min Wang, Haijiang Wang, Jiaining Bai
Summary: Structural optimization of fully stabilized zirconia electrolyte using vat photopolymerization technology has shown great potential in improving performance. An optimized photosensitive slurry was developed and the printed parts exhibited superior mechanical and electrochemical properties.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Materials Science, Ceramics
Hiroyuki Shimada, Yuki Yamaguchi, Hirofumi Sumi, Yasunobu Mizutani
Summary: By modifying the cathode/electrolyte interface with a porous BZCYYb interlayer (PBI) in PCFCs, the cathode performance has been significantly improved, achieving high power density at lower temperatures. The use of this interlayer enhances the cathode/electrolyte interfacial structure and increases the triple-phase boundary, resulting in improved overall performance of the fuel cell.
CERAMICS INTERNATIONAL
(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
Zhenwei Wang, Shikai Zhao, Xue Guo, Jiao Li, Qiangqiang Hu, Yurun Feng, Fangyong Yu, Haibin Sun
Summary: This study investigates the anti-chromium stability of La0.6Sr0.4Co0.2Fe0.8O3-delta (LSCF) cathodes through a simple electroless silver plating method. The modified LSCF-Ag cathodes exhibit improved resistance to chromium poisoning, avoiding the decrease in cell performance.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Applied
Mengzheng Ouyang, Antonio Bertei, Samuel J. Cooper, Yufei Wu, Paul Boldrin, Xinhua Liu, Masashi Kishimoto, Huizhi Wang, Max Naylor Marlow, Jingyi Chen, Xiaolong Chen, Yuhua Xia, Billy Wu, Nigel P. Brandon
Summary: This study quantitatively evaluated the contribution of the dual-phase boundary to MIEC electrodes and proposed a new Ni/CGO fiber-matrix design strategy, demonstrating lower polarization resistance compared to traditional electrodes.
JOURNAL OF ENERGY CHEMISTRY
(2021)
Article
Chemistry, Physical
Taeyoung Kim, Hyong June Kim, Dohyun Go, Jeong Woo Shin, Byung Chan Yang, Gu Young Cho, Turgut M. Gur, Jihwan An
Summary: This study reports on the development and optimization of Ni-SDC films for low-temperature solid oxide fuel cell anodes. The effects of oxygen partial pressure and deposition temperature on the properties of Ni-SDC films were investigated, and increasing the deposition temperature was found to effectively suppress Ni agglomeration.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Muhammad Abdullah Umer, Yu-Cheng Yu, Kan-Rong Lee, Chung-Jen Tseng, Szu-yuan Chen, Sheng-Wei Lee
Summary: In order to commercialize solid oxide fuel cells, it is crucial to develop cathode materials with optimal microstructure to balance lower operation temperature and higher oxygen reduction reaction rate and conductivity. This study designs and synthesizes cost-effective La0.6Sr0.4Co0.2Fe0.8O3-delta (LSCF) nanofibers decorated with NiO nanoparticles, which significantly enhance the performance of protonic ceramic electrochemical cells in solid oxide fuel cell (SOFC) tests and solid oxide electrolysis cell (SOEC) mode. The combination of a mixed ionic-electronic conductor (MIEC) 3D mesh and surface decoration with high ORR activity nanoparticles effectively boosts the power density and current density of P-SOFCs and SOECs.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Ba Nghiep Nguyen, Naveen K. Karri, C. J. Taylor Mason, James F. Fitzpatrick, Brian J. Koeppel
Summary: A multiscale mechanistic damage model for solid oxide fuel cell (SOFC) ceramics that incorporates micromechanics and continuum damage mechanics (CDM) is developed to study the damage evolution and failure mechanisms. The model considers the effects of material porosity change, microcracking, and volumetric swelling due to redox cycling. Pores and microcracks are modeled as randomly distributed ellipsoidal inclusions, and the evolution of microcracking damage is described using a CDM formulation. The proposed model has significant implications for understanding the mechanical behavior of SOFC stacks under redox cycling and normal operation.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Fabian Grimm, Norbert H. Menzler, Olivier Guillon
JOURNAL OF POWER SOURCES
(2020)
Review
Energy & Fuels
David Udomsilp, Christian Lenser, Olivier Guillon, Norbert H. Menzler
Summary: Solid oxide cell (SOC) technology is rapidly developing and will play an important role in carbon-neutral power supply, with advantages in decentralized power generation and distribution.
Article
Chemistry, Physical
Susanne Hemes, Frank Meiners, Irina Sizova, Rebar Hama-Saleh, Daniel Roehrens, Andreas Weisheit, Constantin Leon Haefner, Markus Bambach
Summary: The study proposes a hybrid manufacturing route combining additive powder laser directed energy deposition (L-DED) with hot forging to produce high-quality Ti6Al4V parts. By combining L-DED with thermomechanical processing, the resulting microstructure and mechanical properties are optimized, reducing anisotropy in tensile properties commonly found in additive manufacturing.
Article
Nanoscience & Nanotechnology
Matthias Riegraf, Feng Han, Noriko Sata, Remi Costa
Summary: The study investigates the performance of different thicknesses of CGO layers manufactured by electron beam physical vapor deposition on solid oxide cells. Results show that a 0.15 μm thick layer leads to the formation of a continuous Sr-containing secondary phase at the CGO/YSZ interface, while 0.3 and 0.5 μm thick layers can maintain high performance and low degradation rates.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Nanoscience & Nanotechnology
Matthias Riegraf, Ilaria Bombarda, Ferdinand Domling, Tom Liensdorf, Carolin Sitzmann, Nico Langhof, Stefan Schaffoener, Feng Han, Noriko Sata, Christian Geipel, Christian Walter, Remi Costa
Summary: Research shows that by adjusting the morphology and processing of the ceria interlayers, it is possible to significantly reduce residual stress in the cell and increase mechanical strength. This new approach holds promise for increasing the volumetric power density and material efficiency of solid oxide cell systems.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Electrochemistry
Qingping Fang, Norbert H. Menzler, Ludger Blum
Summary: It has been found that the LSC cathode shows more promising results in SOFCs compared to the LSCF cathode, with higher ionic conductivity and better resistance to chromium poisoning. Through long-term stack operation and various analyses, the degradation behavior of the stack due to chromium poisoning can be evaluated.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2021)
Article
Materials Science, Ceramics
Jun Zhang, Christian Lenser, Niklas Russner, Andre Weber, Norbert H. Menzler, Olivier Guillon
Summary: This article reports on the fabrication of a cost-effective anode-supported solid oxide fuel cell (SOFC) using gadolinia-doped ceria (GDC) as the electrolyte. The results show that the cell exhibits low ohmic resistance and high power density at intermediate temperature, indicating its great potential for commercial applications.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2023)
Article
Chemistry, Physical
Xiaoyan Yin, Robert Spatschek, Norbert H. Menzler, Claas Hueter
Summary: This study utilizes a transfer learning approach to predict the oxygen vacancy formation energy by training models with similar feature spaces. The predictive models are successfully transferred from a two-species-doped system to a four-species-doped system, and their transferability is validated through statistical analysis. This approach is of great significance for the search for novel energy materials.
Review
Chemistry, Physical
Stephan Sarner, Andrea Schreiber, Norbert H. Menzler, Olivier Guillon
Summary: This paper discusses potential recycling routes for solid oxide fuel cell (SOC) stack components, with emphasis on ceramic fractions. The economic and environmental potentials of recycling are evaluated, demonstrating significant advantages offered by recycling.
ADVANCED ENERGY MATERIALS
(2022)
Article
Chemistry, Physical
Daniel Roehrens, Ahed Abouserie, Bangfen Wang, Greta Haselmann, Ulrich Simon
Summary: We introduce a MW-assisted heterogeneous catalytical setup and discuss the factors influencing the obtained data, providing insights and opportunities for research and development in MW-assisted catalysis.
Article
Chemistry, Physical
Maria Balaguer, Yoo Jung Sohn, Dietmar Kobertz, Sergey Kasatikov, Andrea Fantin, Michael Mueller, Norbert H. Menzler, Olivier Guillon, Mariya E. Ivanova
Summary: Innovations in materials science are crucial for addressing technological challenges, requiring the design of materials with tailored properties. This study developed ceramic materials in the BaZr0.8Y0.2-xMnxO3-delta series, finding that thermal expansion and hydration decrease, and total electrical conductivity reduces with increasing Mn content. XPS analysis and NEXAFS indicated varying oxidation states of Mn atoms depending on ambient conditions, suggesting a hydration mechanism mediated by Mn oxidation and proton attachment to oxygen neighbors.
SOLID STATE IONICS
(2022)
Article
Energy & Fuels
Moritz L. Weber, Moritz Kindelmann, Egbert Wessel, Alexandros Sarantopoulos, Norbert H. Menzler, Regina Dittmann, Rainer Waser, Olivier Guillon, Christian Lenser, Felix Gunkel
Summary: Metal exsolution is a dynamic process driven by reducing atmosphere and elevated temperatures, which leads to the self-assembly of nanoparticles at the surface of complex perovskite catalysts. The characteristics of metal exsolution catalysts can be highly inhomogeneous, and the anisotropic surface properties of ceramic oxides have been found to significantly affect the exsolution behavior.
JOURNAL OF PHYSICS-ENERGY
(2023)
Review
Chemistry, Multidisciplinary
Mariya E. Ivanova, Ralf Peters, Martin Mueller, Stefan Haas, Martin Florian Seidler, Gerd Mutschke, Kerstin Eckert, Philipp Roese, Sonya Calnan, Rory Bagacki, Rutger Schlatmann, Cedric Grosselindemann, Laura-Alena Schaefer, Norbert H. Menzler, Andre Weber, Roel van de Krol, Feng Liang, Fatwa F. Abdi, Stefan Brendelberger, Nicole Neumann, Johannes Grobbel, Martin Roeb, Christian Sattler, Ines Duran, Benjamin Dietrich, M. E. Christoph Hofberger, Leonid Stoppel, Neele Uhlenbruck, Thomas Wetzel, David Rauner, Ante Hecimovic, Ursel Fantz, Nadiia Kulyk, Jens Harting, Olivier Guillon
Summary: Hydrogen produced from renewables will have a growing impact on global energy dynamics towards sustainability and carbon neutrality. However, the current share of green hydrogen is too low, and there is a rising demand for high-quality hydrogen. This highlights the need for economically viable hydrogen generation technologies. This article evaluates existing technologies for high-quality hydrogen production based on solar energy, considering their current development level, technical limitations, and future potential.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Physical
Benjamin Koenigshofer, Michael Hoeber, Norbert H. Menzler, Hartmuth Schroettner, Christoph Hochenauer, Vanja Subotic
Summary: High temperature solid oxide electrolysis cells (SOEC) provide a unique solution for converting steam and electricity into hydrogen, with the ability to produce syngas by adding CO2. However, specific operating conditions can negatively affect the performance and lifespan of SOECs. This study focuses on experimental investigations of steam-electrode supported SOECs with segmented air electrodes, aiming to identify locally-resolved impedance and degradation characteristics caused by different operating conditions in steam and co-electrolysis mode using EIS, DRT, and SEM.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Electrochemistry
Qianli Ma, Sebastian Dierickx, Vaibhav Vibhu, Doris Sebold, Lambertus G. J. de Haart, Andre Weber, Olivier Guillon, Norbert H. Menzler
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2020)
