Article
Chemistry, Physical
Yu Ma, Biao He, Jiaqi Wang, Ming Cheng, Xianzeng Zhong, Jianbing Huang
Summary: Perovskite-type yttrium-doped barium zirconate (BZY) is a promising electrolyte material for protonic ceramic fuel cells (PCFCs) due to its high conductivity and stability. A new cell structure based on porous/dense bilayer BZY electrolyte matrix was designed, showing improved performance with proper graphite content and impregnated NiO anode. This study suggests the potential of this design for cost-effective PCFC development.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Helena Sofia Soares, Isabel Antunes, Francisco J. A. Loureiro, Domingo Perez-Coll, Marc-Georg Willinger, Ana D. Brandao, Glenn C. Mather, Duncan P. Fagg
Summary: The study explores the effects of ZnO sintering additive on the yttrium-doped barium zirconate proton conductor, finding that ZnO can promote high levels of densification regardless of the mechanism used. However, the B-site cation excess mechanism impairs grain growth, and Zn is found in both grains and grain boundaries in all cases. Additionally, the Zr substitution mechanism provides slightly higher values of bulk protonic conductivity, while the B-site excess mechanism offers the highest specific grain-boundary conductivity due to greater Zn segregation.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Materials Science, Ceramics
S. Ghadami, E. Taheri-Nassaj, H. R. Baharvandi, F. Ghadami
Summary: The dense HfB2-TiB2-SiC-MoSi2 quadruplet composite was produced by reactive pressureless sintering, achieving a relative density of 98% due to the in situ formation of SiC and MoSi2 phases. The TiB2 comatrix improved the sinterability of the composite and enhanced the mechanical properties such as Vickers hardness, fracture toughness, and elastic modulus.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Ceramics
Long Chen, Zhengjuan Wang, Song Hu, Xianpeng Qin, Zhenhai Xue, Guohong Zhou, Shiwei Wang
Summary: In this study, infrared transparent mullite ceramics were fabricated by solid-state reactive sintering under vacuum. The densification and mullitization processes of the mixed powders were investigated, showing promising results for the preparation of large and complex shaped transparent mullite ceramics. At a sintering temperature of 1780°C, the ceramics exhibited the highest transmittance of 65% at 4.1 μm.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Ceramics
Jiangao Liu, Yang Li, Changgui Cheng, Wei Li, Xufeng Qin
Summary: The effect of temperature on the microstructure and mechanical properties of SiC-TiB2 composite ceramics was investigated using solid-phase spark plasma sintering (SPS). The experimental results showed that the addition of TiB2 can significantly improve the mechanical properties of SiC-TiB2 composite ceramics, while higher sintering temperature leads to a decrease in mechanical properties. The best mechanical properties were obtained at 1750 degrees C.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Ceramics
Zhiju Zhao, Chenglin Wang, Liqin Yang, Yanping Cheng, Zhenyu Cai, M. Zarezadeh Mehrizi
Summary: In this study, a NiAl/TiC0.95 composite was synthesized through reactive spark plasma sintering of mechanically activated elemental powders. The microstructure and properties of the activated powders and sintered samples were evaluated. The results showed that after 10 hours of mechanical activation, Ni3Al and Ni2Al3 were eliminated from the sintered powder, leaving only NiAl and TiC0.95.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Multidisciplinary
Si-Heng Chen, Ting-Ting Zhang, Dong-Yang Zhu, Ning Wang, Sheng Xu, Seeram Ramakrishna, Yun-Ze Long
Summary: This study systematically characterizes the microstructure, elements distribution, and crystallinity of La0.6Sr0.4Co0.2Fe0.8O3-delta (LSCF) and BaZr0.8Y0.2O3-delta (BZY) nanofibers prepared by electrospinning. The electrochemical performance of the single cell with nanofiber cathode is significantly improved compared to traditional powder materials. The nanofiber cathode exhibits excellent permeability and faster charge transfer rate, leading to increased stability and electrochemical performance of individual cells.
ADVANCED ENGINEERING MATERIALS
(2022)
Article
Materials Science, Ceramics
Yongqiang Tan, Zhen Teng, Chen Chen, Peng Jia, Xiaosong Zhou, Haibin Zhang
Summary: The study found that high-entropy compositions lead to higher mechanical properties in metal carbides. However, the variations in hardness, strength, toughness, and modulus of carbide solid solutions show different trends under different compositions.
CERAMICS INTERNATIONAL
(2021)
Article
Nanoscience & Nanotechnology
Hui-Zhen Shen, Ning Guo, Yun-Hong Liang, Ping Shen
Summary: This study proposed a reactive cold sintering method based on ball-milling activated reactants for the synthesis and densification of hydroxyapatite (HA) products at low temperatures. Systematic investigation of processing parameters provided insights into a simple, feasible, and scalable route for rapid low-temperature synthesis and densification of HA.
SCRIPTA MATERIALIA
(2021)
Article
Materials Science, Ceramics
Mingcheng Zhu, Lan Zhang, Na Li, Desen Cheng, Jidong Zhang, Shiyao Yu, Hui Bai, Huizhong Ma
Summary: In this study, ternary ZrB2-SiC-MoSi2 composites with different compositions were successfully fabricated by reactive spark plasma sintering. The densification behavior, microstructures, and mechanical properties were investigated. It was found that the addition of MoSi2 could improve the relative density, hardness, and fracture toughness of the composites, and a core-shell structure could be formed to enhance the overall performance.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Ceramics
Xu Wang, Lei Zhang, Yaqi Ji, Jian Chu, Pengfei Pan, Sheqi Pan, Honglong Wang, Ling Wang, Ming Zhang
Summary: This study investigated the effects of starting oxide powders with different particle sizes on the synthesis and physical properties of gadolinium zirconate pyrochlore (GZO). It was found that the use of nano powders had a more significant impact on the crystallization process and improved the mechanical properties of the ceramics.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Multidisciplinary
Lanqing Liang, Boxin Wei, Mengmeng Zhang, Wenbin Fang, Lei Chen, Yujin Wang
Summary: Novel TiC-based ceramics were prepared by reactive hot-pressing using TiC, Si, and ZrC powders. The microstructure and mechanical properties of the ceramics were found to be influenced by the addition of ZrC and temperature. The main toughening mechanisms observed were crack bridging by the layered Ti3SiC2 and crack deflection by the ZrSi particle. TiC-36 mol% Si-10 mol% ZrC exhibited excellent mechanical properties, surpassing most TiC-based ceramics in previous reports.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Chemistry, Physical
Shiyi Zheng, Buhao Zhang, Xuejian Liu, Zhongming Chen, Zhengren Huang, Jie Yin
Summary: Dense SiC-based composite ceramics were successfully fabricated by incorporating TaC using solid-state spark plasma sintering. The addition of TaC effectively suppressed the growth of SiC grains, resulting in improved strength and fracture toughness. The as-sintered SiC-20 vol.% TaC composite ceramic exhibited high relative density, bending strength, fracture toughness, and hardness.
Article
Biochemistry & Molecular Biology
Sandrine Ricote, Robert J. Kee, William G. Coors
Summary: Slip casting was used to prepare BCZY-NiO tubes with different diameters for use as hydrogen electrodes. The study found that the sintered BCZY layer adhered well to the support layer, and gas tightness was achieved through a sealing layer. Short tubes were found to have advantages in reactor design.
Article
Chemistry, Physical
Yizhi Xing, Yongdan Li, Cuijuan Zhang
Summary: The NASICON-type solid-state electrolyte was prepared using solid-state reactive sintering method without sintering additives, achieving high density and ion conductivity. The reasonable interface contact between the electrolyte and sodium electrode enables stable cycling and full discharge of the symmetric sodium battery.
SOLID STATE IONICS
(2021)
Article
Materials Science, Multidisciplinary
Wang Chow, Denis Solas, Guillaume Puel, Thierry Baudin, Veronique Aubin
JOURNAL OF MATERIALS SCIENCE
(2016)
Article
Engineering, Electrical & Electronic
Pierre Manil, Francois Nunio, Yamen Othmani, Veronique Aubin, Jean-Yves Buffiere, Maria Soledad Commisso, Petr Dokladal, Damien Durville, Gilles Lenoir, Nicolas Lerme, Eric Maire
IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY
(2017)
Article
Engineering, Electrical & Electronic
Gilles Lenoir, Veronique Aubin
IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY
(2017)
Article
Mechanics
Matthieu Bonneric, Veronique Aubin, Damien Durville
INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES
(2019)
Article
Materials Science, Multidisciplinary
Brahim Nabi, Anne-Laure Helbert, Hiba Azzeddine, Djamel Bradai, Francois Brisset, Thierry Waeckerle, Veronique Aubin, Thierry Baudin
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2019)
Article
Engineering, Mechanical
Matthieu Bonneric, Veronique Aubin, Damien Durville
ENGINEERING FAILURE ANALYSIS
(2019)
Article
Engineering, Electrical & Electronic
Gilles Lenoir, Pierre Manil, Francois Nunio, Veronique Aubin
IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY
(2019)
Article
Materials Science, Ceramics
D. Ciria, M. Jimenez-Melendo, V Aubin, G. Dezanneau
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2020)
Article
Materials Science, Ceramics
D. Ciria, M. Jimenez-Melendo, V. Aubin, G. Dezanneau
Summary: The high-temperature mechanical properties of yttrium-doped barium zirconate obtained by two different routes are investigated in this study. The material shows a gradual transition from brittle-to-ductile behavior as temperature increases and/or strain rate decreases during compression tests.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2021)
Article
Materials Science, Coatings & Films
P. Arnaud, E. Heripre, F. Douit, V Aubin, S. Fouvry, R. Guiheux, V Branger, G. Michel
Summary: The study presents a method using FIB micro-tensile test strategy to extract the elastic modulus and Poisson's ratio of thin-layer compounds. Testing micro-notched specimens also highlights the necessity to consider the radius of the micro-notch tip and surface roughness induced by FIB machining in FE simulations.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Engineering, Electrical & Electronic
L. Cornet, L. Yedra, E. Heripre, V. Aubin, J. -H. Schmitt, M. -L. Giorgi
Summary: Diffusion bonding of Au, Cu and Sn for manufacturing printed circuit boards was studied. The mechanisms of reactive diffusion and Kirkendall void formation were explored in the Cu-Au-Sn-Cu sandwich system. The study revealed the formation of different phases and compounds during heating, as well as the growth of Kirkendall voids at the interfaces. The chemical evolution of the system was analyzed using diffusion path theory.
JOURNAL OF ELECTRONIC MATERIALS
(2022)
Article
Engineering, Mechanical
Vivien Lefranc, Soha Baydoun, Camille Gandiolle, Eva Heripre, Maxime Vallet, Siegfried Fouvry, Veronique Aubin
Summary: Fretting wear is a surface degradation process caused by oscillatory motion and contact slipping. The formation of Tribologically Transformed Structure (TTS) in Ti-6Al-4V alloy under fretting loading was studied in this paper by changing the contact pressure and the number of fretting cycles. TTS first appears as islands and merges in the middle of the contact after enough cycles. The microstructure of TTS shows extreme grain refinement and it is composed of two alternated zones.
Article
Chemistry, Physical
Tianyu Chen, Zhibin Lu, Guangjin Zeng, Yongmin Xie, Jie Xiao, Zhifeng Xu
Summary: The study introduces a high-performance LSGM electrolyte-supported tubular DC-SOFC stack for portable applications, which shows great potential in developing into high-performing, efficient, and environmentally friendly portable power sources for distributed applications.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Wenbin Tong, Yili Chen, Shijie Gong, Shaokun Zhu, Jie Tian, Jiaqian Qin, Wenyong Chen, Shuanghong Chen
Summary: In this study, a three-dimensional porous NiO interface layer with enhanced anode dynamics is fabricated, forming a Schottky contact with the zinc substrate, allowing rapid and uniform zinc plating both inside and below the interface layer. The resulting NiO@Zn exhibits exceptional stability and high capacity retention.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Yafeng Bai, Kaidi Li, Liying Wang, Yang Gao, Xuesong Li, Xijia Yang, Wei Lu
Summary: In this study, a flexible zinc ion supercapacitor with gel electrolytes, porous alpha-MnO2@reduced graphene oxide cathode, and activated carbon/carbon cloth anode was developed. The device exhibits excellent electrochemical performance and stability, even at low temperatures, with a high cycle retention rate after 5000 cycles.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Anmol Jnawali, Matt D. R. Kok, Francesco Iacoviello, Daniel J. L. Brett, Paul R. Shearing
Summary: This article presents the results of a systematic study on the electrochemical performance and mechanical changes in two types of commercial batteries with different anode chemistry. The study reveals that the swelling of anode layers in batteries with silicon-based components causes deformations in the jelly roll structure, but the presence of a small percentage of silicon does not significantly impact the cycling performance of the cells within the relevant state-of-health range for electric vehicles (EVs). The research suggests that there is room for improving the cell capacities by increasing the silicon loading in composite anodes to meet the increasing demands on EVs.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Yohandys A. Zulueta, My Phuong Pham-Ho, Minh Tho Nguyen
Summary: Advanced atomistic simulations were used to study ion transport in the Na- and K-doped lithium disilicate Li2Si2O5. The results showed that Na and K doping significantly enhanced Li ion diffusion and conduction in the material.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Zongying Han, Hui Dong, Yanru Yang, Hao Yu, Zhibin Yang
Summary: An efficient phase inversion-impregnation approach is developed to fabricate BaO-decorated Ni8 mol% YSZ anode-supported tubular solid oxide fuel cells (SOFCs) with anti-coking properties. BaO nanoislands are successfully introduced inside the Ni-YSZ anode, leading to higher peak power densities and improved stability in methane fuel. Density functional theory calculations suggest that the loading of BaO nanoislands facilitates carbon elimination by capturing and dissociating H2O molecules to generate OH.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Suresh Mamidi, Dan Na, Baeksang Yoon, Henu Sharma, Anil D. Pathak, Kisor Kumar Sahu, Dae Young Lee, Cheul-Ro Lee, Inseok Seo
Summary: Li-CO2 batteries, which utilize CO2 and have a high energy density, are hindered in practical applications due to slow kinetics and safety hazards. This study introduces a stable and highly conductive ceramic-based solid electrolyte and a metal-organic framework catalyst to improve the safety and performance of Li-CO2 batteries. The optimized Li-CO2 cell shows outstanding specific capacity and cycle life, and the post-cycling analysis reveals the degradation mechanism of the electrodes. First-principles calculations based on density functional theory are also performed to understand the interactions between the catalyst and the host electrode. This research demonstrates the potential of MOF cathode catalyst for stable operation in Li-CO2 batteries.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Ganghua Xiang, Zhihuan Qiu, Huilong Fei, Zhigang Liu, Shuangfeng Yin, Yuen Wu
Summary: In this study, a CeFeOx-supported Pt single atoms and subnanometric clusters catalyst was developed, which exhibits enhanced catalytic activity and stability for the preferential oxidation of CO in H2-rich stream through synergistic effect.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Dimitrios Chatzogiannakis, Marcus Fehse, Maria Angeles Cabanero, Natalia Romano, Ashley Black, Damien Saurel, M. Rosa Palacin, Montse Casas-Cabanas
Summary: By coupling electrochemical testing to operando synchrotron based X-ray absorption and powder diffraction experiments, blended positive electrodes consisting of LiMn2O4 spinel (LMO) and layered LiNi0.5Mn0.3Co0.2O2 (NMC) were studied to understand their redox mechanism. It was found that blending NMC with LMO can enhance energy density at high rates, with the blend containing 25% LMO showing the best performance. Testing with a special electrochemical setup revealed that the effective current load on each blend component can vary significantly from the nominal rate and also changes with SoC. Operando studies allowed monitoring of the oxidation state evolution and changes in crystal structure, in line with the expected behavior of individual components considering their electrochemical current loads.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Chiara Cementon, Daniel Dewar, Thrinathreddy Ramireddy, Michael Brennan, Alexey M. Glushenkov
Summary: This Perspective discusses the specific power and power density of lithium-ion capacitors, highlighting the fact that their power characteristics are often underestimated. Through analysis, it is found that lithium-ion capacitors can usually achieve power densities superior to electrochemical supercapacitors, making them excellent alternatives to supercapacitors.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Weihao Wang, Hao Yu, Li Ma, Youquan Zhang, Yuejiao Chen, Libao Chen, Guichao Kuang, Liangjun Zhou, Weifeng Wei
Summary: This study achieved an improved electrolyte with excellent low-temperature and high-voltage performance by regulating the Li+ solvation structure and highly concentrating it. The electrolyte exhibited outstanding oxidation potential and high ionic conductivity under low temperature and high voltage conditions, providing a promising approach for the practical application of high-voltage LIBs.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Martin Bures, Dan Gotz, Jiri Charvat, Milos Svoboda, Jaromir Pocedic, Juraj Kosek, Alexandr Zubov, Petr Mazur
Summary: Vanadium redox flow battery is a promising energy storage solution with long-term durability, non-flammability, and high overall efficiency. Researchers have developed a mathematical model to simulate the charge-discharge cycling of the battery, and found that hydraulic connection of electrolyte tanks is the most effective strategy to reduce capacity losses, achieving a 69% reduction.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
M. Rodriguez-Gomez, J. Campo, A. Orera, F. de La Fuente, J. Valenciano, H. Fricke, D. S. Hussey, Y. Chen, D. Yu, K. An, A. Larrea
Summary: In this study, we analysed the operando performance of industrial lead cells using neutron diffraction experiments. The experiments revealed the evolution of different phases in the positive electrode, showed significant inhomogeneity of phase distribution inside the electrode, and estimated the energy efficiency of the cells.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Jiawei Liu, Chenpeng Wang, Yue Yao, Hao Ye, Yinglong Liu, Yingli Liu, Xiaoru Xu, Zhicong Chen, Huazheng Yang, Gang Wu, Libin Lei, Chao Wang, Bo Liang
Summary: The study focuses on utilizing double conductive Ni-pads as anode collectors in micro-tubular solid oxide fuel cells. The simulation results show excellent performance and stability of DCNPs, and also highlight the potential applications in various fields.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Yang Wang, Kangjie Zhou, Lang Cui, Jiabing Mei, Shengnan Li, Le Li, Wei Fan, Longsheng Zhang, Tianxi Liu
Summary: This study presents a polyimide sandwiched separator (s-PIF) for improving the cycling stability of Li-metal batteries. The s-PIF separator exhibits superior mechanical property, electrolyte adsorption/retention and ion conductivity, and enables dendrite-free Li plating/stripping process.
JOURNAL OF POWER SOURCES
(2024)