Article
Chemistry, Physical
Yuan Gao, Xiqiang Huang, Zhe Wang, Mengke Yuan, Juntao Gao, Zhe Lv, Lingling Xu, Bo Wei
Summary: This study evaluates the electrochemical performance of SCT10 cathodes in the presence of Cr impurities. The results demonstrate that Cr impurities lead to significant performance degradation, especially in wet conditions. Morphological damages and the formation of SrCrO4 and Co3O4 secondary phases on the cathode surface contribute to the deterioration of oxygen reduction kinetics and cathode activity. The study highlights the importance of surface Sr segregation in Cr deposition and emphasizes the need for attention in practical applications in solid oxide fuel cells.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Physical
Fangfang Wang, QuanSen Yang, Huining Wang, Zixin Zhang, Manuel E. Brito
Summary: The study revealed that sulfur poisoning can occur in cathode materials even without alkali earth components. Sulfur readily reacts with La2O3 in the cathode material to form La2O2SO4 at different temperatures, highlighting the temperature dependency of the chemical reaction. This prompts the exploration of new materials and strategies for developing cathode materials with high sulfur tolerance.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(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
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
Yuan Gao, Xiqiang Huang, Mengke Yuan, Juntao Gao, Zhe Wang, Abdalla M. Abdalla, Abul K. Azad, Lingling Xu, Zhe Lv, Bo Wei
Summary: This study designs and evaluates a new medium-entropy cathode material SCFTTN52111, which exhibits lower polarization resistance and higher oxygen reduction activity compared to the existing material SCT91. Additionally, SCFTTN52111 shows outstanding stability and high CO2 tolerance. This research provides a feasible and effective approach for the design of cathode materials for SOFCs.
JOURNAL OF POWER SOURCES
(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, Physical
Hafiz Ahmad Ishfaq, Muhammad Zubair Khan, Yogita Manikrao Shirke, Sanaullah Qamar, Amjad Hussain, Muhammad Taqi Mehran, Rak-Hyun Song, Mohsin Saleem
Summary: Here, we report a highly conductive, robust, and innovative Gd and Pr multi-doped ceria (GPDC) coating to enhance the ORR kinetics and stability against Cr poisoning of the state-of-the-art LSCF cathode. The GPDC coating significantly improves the ORR kinetics by improving the surface of the LSCF cathode and shows a two-fold increase in electrochemical performance compared to the bare LSCF cathode. It also exhibits outstanding stability in an accelerated Cr poisoning test, attributed to the alleviation of SrCrO4 formation. Both relaxation time-based analysis and experimental results confirm that the GPDC coating enhances the ORR activity and Cr tolerance of the LSCF cathode.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Review
Chemistry, Physical
Mustafa Anwar, Muhammed Ali Shaikh Abdul, Uneeb Masood Khan, Muhammad Hassan, Asif Hussain Khoja, Andanastuti Muchtar
Summary: This article reviews the adoption of X-ray photoelectron spectroscopy (XPS) for the characterization of SOFC cathode materials, discussing their degradation mechanism and strategies for improving cathode performance.
Article
Chemistry, Physical
C. M. Harrison, B. J. M. Sarruf, D. Klotz, P. R. Slater, R. Steinberger-Wilckens
Summary: This paper investigates the effect of sintering temperature on the performance of the Ruddlesden-Popper phase La2NiO4+delta as a Solid Oxide Fuel Cell cathode material. The study shows that increasing the sintering temperature leads to a significant improvement in electrode performance. It is also found that adding a noble metal contacting layer can dramatically enhance the performance of the LNO214 electrode. These findings have important implications for SOFC testing methodologies.
SOLID STATE IONICS
(2023)
Article
Nanoscience & Nanotechnology
Zhongqiu Li, Bo Guan, Fang Xia, Jiuyuan Nie, Wenyuan Li, Liang Ma, Wei Li, Lingfeng Zhou, Yi Wang, Hanchen Tian, Jian Luo, Yan Chen, Matthew Frost, Ke An, Xingbo Liu
Summary: A new series of HEPs are investigated as cathode materials for SOFCs, achieving both chromium tolerance and high performance. The A-site elements have a significant influence on overall performance, and using the three most active elements simultaneously leads to the best candidate. Excellent Cr tolerance has been observed, with degradation of only 0.25%/kh during operation.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Jane Banner, Ayesha Akter, Ruofan Wang, John Pietras, Soumitra Sulekar, Olga A. Marina, Srikanth Gopalan
Summary: The study reports the electrochemical performance and chemical stability of composite rare-earth nickelate-rare-earth doped ceria oxygen electrodes with high levels of rare-earth doping, including comparisons with other electrodes in SOFC and SOEC modes, demonstrating higher current density.
JOURNAL OF POWER SOURCES
(2021)
Article
Chemistry, Physical
Xuebai Zhang, Yingmin Jin, Yunjian Jiang, Xin Zong, Yumeng Li, Yueping Xiong
Summary: This study prepared highly active and robust La0.8Sr0.2Co0.2Fe0.8O3-delta (LSCF) nanofibers based composite cathodes with core-shell structure using electrospinning combined with sol-gel method. The GDC coated LSCF nanorods composite cathode with GDC:LSCF mass ratio of 0.51:1 achieved optimal electrochemical performance, reaching a polarization impedance of 0.03 omega cm2 at 800 degrees C. The composite cathode exhibited no obvious degradation for constant operating 200 h and showed higher long-term operation stability and Cr poisoning tolerance due to the application of GDC coating.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Physical
Berit H. H. Goodge, Benjamin Geisler, Kyuho Lee, Motoki Osada, Bai Yang Wang, Danfeng Li, Harold Y. Y. Hwang, Rossitza Pentcheva, Lena F. F. Kourkoutis
Summary: Nickel-based superconductors provide an experimental platform for exploring cuprate-like superconductivity. However, superconductivity in nickelates has only been observed in thin films, which raises questions about the polar interface between substrate and film. In this study, the authors investigate the interface between Nd1-xSrxNiO2 and SrTiO3 using advanced characterization techniques and theoretical calculations, revealing the formation of a single intermediate Nd(Ti,Ni)O-3 layer and its role in reducing interface charge density. Understanding the complex interface structure is important for the future synthesis of nickelate films on other substrates and in vertical heterostructures.
Article
Chemistry, Physical
Fumihiko Ichihara, Kodai Niitsu, Yoshinori Tanaka, Yasuhiro Niwa, Kazutaka Mitsuishi, Shogo Miyoshi, Takahisa Ohno, Takuya Masuda
Summary: The structure of a mixed composite of LiCoPO4 (LCP) and Li1.3Al0.3Ti1.7(PO4)3 (LATP) was analyzed using various techniques. The crystal structure and electronic state of LCP and LATP remained unchanged, but amorphous reaction layers were formed at temperatures above 700°C. The reaction layers consisted of Li, O, P, and Co, with P and Co being richer and poorer than LCP, respectively. Li3PO4 and divalent Co compounds, such as CoO, were identified as the major species in the reaction layers.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Engineering, Manufacturing
S. Gaudez, M. Ben Haj Slama, E. Heripre, L. Yedra, M. Scheel, S. Hallais, M. V. Upadhyay
Summary: During additive manufacturing of stainless steels, sub-micron sized oxide and non-oxide precipitates form, and a recent study confirmed that the precipitate composition can evolve during subsequent solid-state thermal cycling (SSTC). However, the study couldn't provide evidence on precipitate volume fraction, density, and size evolution. In this work, a novel experimental procedure was used to quantify these changes, revealing that new oxides nucleated during rapid SSTC, but dissolve during slow SSTC and annealing due to oxygen evaporation.
ADDITIVE MANUFACTURING
(2023)
Article
Chemistry, Multidisciplinary
Yuxin Zhang, Anyang Hu, Jue Liu, Zhengrui Xu, Linqin Mu, Sami Sainio, Dennis Nordlund, Luxi Li, Cheng-Jun Sun, Xianghui Xiao, Yijin Liu, Feng Lin
Summary: The authors demonstrate that the reaction kinetics and spatial distribution of redox activities in DRX materials are influenced by particle size. Engineering particle size can achieve optimal capacity and stability, although sub-micron DRX particles exhibit inferior cycling stability.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Linqin Mu, Jin Zhang, Yahong Xu, Chenxi Wei, Muhammad Mominur Rahman, Dennis Nordlund, Yijin Liu, Feng Lin
Summary: This study investigates the impact of heterogeneous compositional distributions on the performance of LiNi1-x-yMnxCoyO2 (NMC) particles in batteries. The results show that the local concentrations of Mn and Ni in NMC particles are positively and negatively correlated with electrochemical oxidation, respectively, while the Co concentration does not have a clear effect on Ni oxidation. Controlling the distribution of Ni/Mn/Co in NMC particles could help control the charge distribution and chemomechanical properties of polycrystalline battery particles.
Article
Multidisciplinary Sciences
Shaofeng Li, Guannan Qian, Xiaomei He, Xiaojing Huang, Sang-Jun Lee, Zhisen Jiang, Yang Yang, Wei-Na Wang, Dechao Meng, Chang Yu, Jun-Sik Lee, Yong S. Chu, Zi-Feng Ma, Piero Pianetta, Jieshan Qiu, Linsen Li, Kejie Zhao, Yijin Liu
Summary: The authors demonstrate a thermal-healing method to repair lattice defects in single-crystalline cathodes caused by thermal-induced release of lattice strain and structure ordering. They systematically evaluate the effectiveness of regaining lost capacity through energy-efficient thermal treatment and provide clues for relieving the fatigued cathode crystal in sustainable lithium-ion batteries.
NATURE COMMUNICATIONS
(2022)
Article
Chemistry, Multidisciplinary
Lufeng Yang, Jin Zhang, Weiran Xue, Jizhou Li, Rusong Chen, Hongyi Pan, Xiqian Yu, Yijin Liu, Hong Li, Liquan Chen, Xuejie Huang
Summary: This study systematically investigates the thermal stability of two typical layered oxide cathodes, LiCoO2 and LiNi0.8Mn0.1Co0.1O2, in different electrolytes, finding that oxygen release from the cathodes plays a crucial role in thermal runaway. The replacement of liquid electrolytes with polymer electrolytes has different effects on the thermal stability of the cathodes, providing valuable guidance for improving the safety of polymer-electrolyte-based and other types of all-solid-state lithium-ion batteries.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Yunhao Wang, Jingwen Zhou, Chao Lin, Bo Chen, Zhiqiang Guan, Amani M. Ebrahim, Guannan Qian, Chenliang Ye, Lin Chen, Yiyao Ge, Qinbai Yun, Xixi Wang, Xichen Zhou, Gang Wang, Kedi Li, Pengyi Lu, Yangbo Ma, Yuecheng Xiong, Tianshuai Wang, Long Zheng, Shengqi Chu, Ye Chen, Bin Wang, Chun-Sing Lee, Yijin Liu, Qianfan Zhang, Zhanxi Fan
Summary: This work presents a facile one-pot solvothermal method for the synthesis of ultrathin 2D Ru-M (M = Co, Ni, and Cu) nanosheets, which can be used as cathode catalysts for Li-CO2 batteries. The RuCo nanosheets demonstrate excellent catalytic performance with low charge voltage, small overpotential, and high energy efficiency. The study indicates the feasibility of improving the electrochemical performance of Li-CO2 batteries through the in-plane metal alloy sites of ultrathin 2D alloy nanomaterials.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Multidisciplinary Sciences
Jizhou Li, Nikhil Sharma, Zhisen Jiang, Yang Yang, Federico Monaco, Zhengrui Xu, Dong Hou, Daniel Ratner, Piero Pianetta, Peter Cloetens, Feng Lin, Kejie Zhao, Yijin Liu
Summary: By analyzing thousands of particles, this study reveals the asynchronous activities in the early cycles of composite battery electrodes due to the local network heterogeneity, and suggests better designs of the conductive network to optimize the battery performance.
Article
Chemistry, Physical
Guannan Qian, Guibin Zan, Jizhou Li, Sang-Jun Lee, Yong Wang, Yingying Zhu, Sheraz Gul, David J. Vine, Sylvia Lewis, Wenbing Yun, Zi-Feng Ma, Piero Pianetta, Jun-Sik Lee, Linsen Li, Yijin Liu
Summary: This study investigates the factors influencing the zinc plating and stripping behavior in aqueous zinc-ion batteries using in situ and operando X-ray microscopy methods. The results demonstrate that substrate curvature, local morphology, electrochemical protocols, and surface chemistry all collectively affect the zinc plating behavior. These findings provide new insights for developing dendrite-free and long-span aqueous zinc-ion batteries.
ADVANCED ENERGY MATERIALS
(2022)
Article
Chemistry, Applied
Meidan Jiang, Guannan Qian, Xiao-Zhen Liao, Zhouhong Ren, Qingyu Dong, Dechao Meng, Guijia Cui, Siqi Yuan, Sang-Jun Lee, Tian Qin, Xi Liu, Yanbin Shen, Yu-Shi He, Liwei Chen, Yijin Liu, Linsen Li, Zi-Feng Ma
Summary: In this study, the morphological, structural, and chemical changes of P2-NNMO during high-voltage cycling were systematically investigated. It was found that lattice distortion and crystal-plane buckling induced by the P2-O2 phase transition slowed down Na-ion transport and hindered Na-ion extraction. The sluggish kinetics was the main reason for reducing accessible capacity, while other interfacial degradation mechanisms played minor roles.
JOURNAL OF ENERGY CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Sugeun Jo, Jeongwoo Han, Sungjae Seo, Oh-Sung Kwon, Subin Choi, Jin Zhang, Hyejeong Hyun, Juhyun Oh, Juwon Kim, Jinkyu Chung, Hwiho Kim, Jian Wang, Junho Bae, Junyeob Moon, Yoon-Cheol Park, Moon-Hi Hong, Miyoung Kim, Yijin Liu, Il Sohn, Keeyoung Jung, Jongwoo Lim
Summary: During solid-state calcination, complex phase transitions with heterogeneous solid-state reactions and mass transport occur as the temperature increases. Precise control of the calcination chemistry is crucial for synthesizing advanced Ni-rich layered oxides (NRNCM) as cathode materials for lithium-ion batteries. This study reveals the control mechanism of the local chemical compositions and structures in the reaction intermediates within a calcined particle through synchrotron-based X-ray, mass spectrometry microscopy, and structural analyses, providing valuable information for tuning the calcination chemistry and developing high-energy/power density lithium-ion batteries.
ADVANCED MATERIALS
(2023)
Article
Materials Science, Coatings & Films
A. Herrera-Gomez, M. O. Vazquez-Lepe, P. G. Mani-Gonzalez, P. Pianetta, F. S. Aguirre-Tostado, O. Ceballos-Sanchez
Summary: One doublet is typically used to fit the Si-0 substrate species in Si 2p photoemission spectra from Si (001) H-terminated and oxidized surfaces. However, there is a second substrate-top component (S-T) with a higher binding energy than the bulk component, varying in intensity depending on the emission angle. It exists even for oxidized surfaces and does not correspond to any suboxide species. The S-T component contributes to the signal dip between the two S-O branches of the Si 2p spectra for glancing electron takeoff angles, but it is not mentioned in the literature.
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A
(2023)
Article
Multidisciplinary Sciences
J. -J. Wen, W. He, H. Jang, H. Nojiri, S. Matsuzawa, S. Song, M. Chollet, D. Zhu, Y. -J. Liu, M. Fujita, J. M. Jiang, C. R. Rotundu, C. -C. Kao, H. -C. Jiang, J. -S. Lee, Y. S. Lee
Summary: Using x-ray scattering, researchers have found that the amplitude of charge-density waves (CDW) in the prototypical cuprate La1.885Sr0.115CuO4 suddenly increases upon entering the superconducting vortex-liquid state at high magnetic fields. This indicates a strong coupling between CDW and superconductivity, and suggests that the enhanced CDW amplitude is linked to local superconducting pairing.
NATURE COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Hongyi Pan, Sichen Jiao, Zhichen Xue, Jin Zhang, Xilin Xu, Luyu Gan, Quan Li, Yijin Liu, Xiqian Yu, Hong Li, Liquan Chen, Xuejie Huang
Summary: The pursuit of high-energy-density lithium-ion batteries has led to extensive research on the high-capacity lithium-rich manganese-rich oxide cathode (LRMO). This study investigates the thermal stability of LRMO through in situ X-ray diffraction and full-field transmission X-ray microscopy combined with X-ray absorption near edge structure. The roles of Ni and Mn in affecting the thermal stability of LRMO are uncovered, with Ni acting as a key factor that governs the onset temperature of thermal decomposition. Moreover, incomplete coverage of solid polymer electrolytes over the LRMO particle surface may lead to the deterioration of thermal stability.
ADVANCED ENERGY MATERIALS
(2023)
Article
Physics, Condensed Matter
Guannan Qian, Xiaobiao Huang, Jun-Sik Lee, Piero Pianetta, Yijin Liu
Summary: The rapid development and broad deployment of rechargeable batteries have transformed modern society significantly. Redox reactions in battery cathode materials are important but their ultrafast dynamics have been largely unexplored. In this article, the potential significance of understanding redox dynamics in battery cathodes in the ultrafast time regime is discussed, along with a proposed experimental design using a plasma-acceleration-based X-ray free-electron laser facility.
Article
Chemistry, Multidisciplinary
Guannan Qian, Zhiyuan Li, Yong Wang, Xianyu Xie, Yushi He, Jizhou Li, Yanhua Zhu, Sijie Xie, Zhenjie Cheng, Haiying Che, Yanbin Shen, Liwei Chen, Xiaojing Huang, Piero Pianetta, Zi-Feng Ma, Yijin Liu, Linsen Li
Summary: This study presents a molten-salt-based method for direct recycling of electric vehicle batteries, which can convert the waste into valuable materials with outstanding electrochemical performance. This work may open opportunities for the recycling and manufacturing of next-generation cathode materials for electric vehicle batteries.
CELL REPORTS PHYSICAL SCIENCE
(2022)
