Article
Materials Science, Ceramics
Xiaochun Wang, Zhun Kou, Hao Wu, Yi Song, Xuepeng Zhao, Shanping Xu, Li Li
Summary: This study evaluated the performance of glass ceramic seals doped with various proportions of YSZ and glass, and found that the H4-20 glass ceramic seal exhibited low leakage rate and good thermal cycle stability, making it suitable for intermediate temperature SOFC applications.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Ceramics
P. Safarzadeh Kermani, N. Rezaei, M. Ghatee
Summary: The study investigated the effects of phlogopite mica addition on BCAS glass seals, finding that a mica content of over 10% does not reach full density, while adding 5% phlogopite enhances mechanical properties of BCAS seals. It was also observed that the sintering temperature and mica content need to be carefully controlled within certain ranges for optimal performance.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Ceramics
Ruizhu Li, Jiajun Yang, Dong Yan, Jian Pu, Bo Chi, Jian Li
Summary: By adding Al2O3 ceramic particles, glass-based seals showed significantly improved gas tightness and shear strength at 750 degrees Celsius. Thermal cycle analyses demonstrated consistent performance of GA80 seals after 10 cycles, indicating high thermal cycle stability.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Ceramics
Xiaochun Wang, Ruizhu Li, Tingyu Hu, Mingjiang Wang, Lanchun Zhang, Cheng Zhao
Summary: In this study, the mechanical behavior between 20 wt% YSZ-glass composite seals (H1-20 and H4-20) and Fe-16Cr alloy under various thermal cycles was investigated through shear force testing and tensile force testing. It was found that the shear strength and tensile strength between H4-20 seals and Fe-16Cr alloy were higher than that of H1-20. The two composite seals differed in characteristic temperature, viscosity, and crystalline phase, which could have potential impacts on the joint strength. Different interfacial compositions were observed between H1-20 and Fe-16Cr alloy compared to H4-20. Four possible fracture modes were proposed based on the examination results to illustrate the failure mechanism between composite seals and alloy.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Physical
Qiuqiu Lyu, Tenglong Zhu, Zongxun Li, Kaihua Sun, Chao Jin, Minfang Han, Hongxia Qu, Qin Zhong
Summary: Long-term operation and thermal cycling stability are crucial for the successful commercialization of solid oxide fuel cells (SOFCs). This study introduces a modified porous Gadolinia doped Ceria (GDC) barrier layer with in-situ grown GDC nanoparticles to achieve a sintering-active and Sr-blocking cathode/electrolyte interface. The modified cells show improved durability and thermal cycling stability compared to pristine cells.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Green & Sustainable Science & Technology
Alexander P. Bump, Sahar Bakhshian, Hailun Ni, Susan D. Hovorka, Marianna I. Olariu, Dallas Dunlap, Seyyed A. Hosseini, Timothy A. Meckel
Summary: Permanent containment is crucial for geologic carbon sequestration. The concept of composite confining systems, consisting of multiple layers of discontinuous barriers, offers an alternative to traditional petroleum seals for CO2 storage. Physical modeling, geologic characterization, and numerical modeling demonstrate that these systems can effectively prevent vertical migration of CO2. However, risks such as shortcut paths through stratigraphic barriers need to be addressed.
INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL
(2023)
Article
Materials Science, Ceramics
Mengyuan Guo, Xiaoqiang Zhang, Ying Li, Martin Andersson, Zhibin Yang, Suping Peng
Summary: A low leakage rate sealant of 10 wt% ZrO2-added CaO-K2O-Na2O-BaO silicate glass for SOFC was studied. The sealant's structure remained stable at high temperatures with leakage rates below 10(-4) sccm.cm(-1), and no crystals, except for ZrO2, were found in XRD analysis after heating at 800 degrees C for 100 hours. ZrO2 was distributed in the glass matrix and played a role in preventing over-softening at operating temperature. SEM analysis at 750 degrees C for 100 hours confirmed good compatibility between the sealant and SUS430 interconnect in both oxidizing and reducing atmospheres.
CERAMICS INTERNATIONAL
(2023)
Article
Nanoscience & Nanotechnology
Xiang Ma, Mian Liu, Qingping Wu, Xiang Guan, Fei Wang, Hongmei Liu, Jun Xu
Summary: Compared with simplex ceramic or polymer solid electrolytes, composite solid electrolyte (CSE) shows better interfacial compatibility to electrode and higher ionic conductivity. Enhancing the interfacial compatibility between organic and inorganic electrolytes is identified to be one of the crucial strategies for commercial solid-state lithium batteries.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Nanoscience & Nanotechnology
Xiang Ma, Mian Liu, Qingping Wu, Xiang Guan, Fei Wang, Hongmei Liu, Jun Xu
Summary: Compared to simple ceramic or polymer solid electrolytes, composite solid electrolytes (CSEs) show better interfacial compatibility with electrodes and higher ionic conductivity. The interfacial compatibility between ceramic and polymer is crucial for the overall performance of solid-state batteries. A CSE (EO@LLZTO-PEO) was designed, consisting of composite particles (EO@LLZTO) as a filler and polyethylene oxide (PEO) as a polymer matrix. The introduction of polymer with EO segments greatly enhances the interfacial compatibility between LLZTO and PEO, and improves the Li+ complexation capability. EO@LLZTO-PEO exhibits high ionic conductivity, a broad electrochemical window, and a high lithium ion transference number.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Nanoscience & Nanotechnology
Ji-Seop Shin, Muhammad Saqib, Minkyeong Jo, Kwangho Park, Kwang Min Park, Jin Soo Ahn, Hyung-Tae Lim, Jun-Young Park
Summary: The long-term thermal cycling has an impact on the durability of solid oxide fuel cells, with rapid thermal cycling leading to more severe performance degradation primarily due to electrode deterioration.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Multidisciplinary
Jiayun Wen, Tengrui Wang, Chao Wang, Yiming Dai, Zhenyou Song, Xuyang Liu, Qian Yu, Xueying Zheng, Jiwei Ma, Wei Luo, Yunhui Huang
Summary: An interfacial engineering strategy between the garnet electrolyte and copper foil is proposed for stable and efficient anode-free solid-state batteries. The strategy utilizes the high Li ion conductivity, interfacial self-adaption ability, and regulated Li deposition, leading to stable long-term operation and outstanding capacity retention.
ADVANCED MATERIALS
(2023)
Article
Thermodynamics
Xian Xi, Shuguang Jiang, Quanlin Shi, Chenchen Yin
Summary: This study systematically analyzed the plugging effectiveness, thermal stability, and fire extinguishing properties of industrial solid waste-based composite foam slurry material (CFSM). Experimental devices were designed to test the plugging effect, thermal stability, heat insulation properties, and extinguishing of CFSM. The results showed that CFSM exhibited good thermal insulation effect, excellent thermal insulation properties, and well plugging performance. It also demonstrated effective fire extinguishing properties by quickly flowing and diffusing in burning coal. This study provides a basis for the application of fire extinguishment technology using CFSM.
Article
Biochemistry & Molecular Biology
Weiqiang Cai, Qingrong Zheng, Jinliang Yuan, Wanneng Yu, Zibin Yin, Yu Wu, Zhonggang Zhang
Summary: This study presents a modeling framework that combines thermo-electro-chemo models and a contact thermo-mechanical model to analyze the durability of solid oxide fuel cell (SOFC) stack. Detailed parametric studies were performed to optimize the performance indicators of the cell under different operating conditions.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Multidisciplinary Sciences
Erik A. Wu, Swastika Banerjee, Hanmei Tang, Peter M. Richardson, Jean-Marie Doux, Ji Qi, Zhuoying Zhu, Antonin Grenier, Yixuan Li, Enyue Zhao, Grayson Deysher, Elias Sebti, Han Nguyen, Ryan Stephens, Guy Verbist, Karena W. Chapman, Raphaele J. Clement, Abhik Banerjee, Ying Shirley Meng, Shyue Ping Ong
Summary: The development of rechargeable solid-state sodium-ion batteries can be enhanced by introducing a new sodium-based halide, Na3-xY1-xZrxCl6, for improved ionic conductivity and long-term cycling stability.
NATURE COMMUNICATIONS
(2021)
Article
Materials Science, Ceramics
Tao Su, Lin Chen, Chenkai Qu, Jianyu Li, Liang Lv, Yuncheng Wang, Xiaolan Ji, Haitao Yun, Jing Feng
Summary: CeO2-YTaO4 ceramics with different CeO2 doping concentrations were successfully synthesized using the SPS technique, and their lattice properties, thermodynamic properties, and phase stability were investigated. The results showed that the samples with 9 mol% CeO2 doping exhibited the lowest thermal conductivity and higher thermal expansion coefficient, indicating good thermal insulation performance and higher working temperature.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2023)