Article
Chemistry, Physical
A. P. Khandale, S. S. Bhoga
Summary: The dispersion of nanocrystalline Ce0.9Gd0.1O2-delta in superfine Sm1.5Sr0.5NiO4+delta is achieved using a modified precipitation technique, inhibiting grain growth and providing morphological stability. The concentration-dependent behaviors of ionic conductivity, surface exchange rate, and electrode polarization resistance are comprehended using a percolation model. Improvement in electrochemical performance is correlated to the nano crystallite size of Ce0.9Gd0.1O2-delta.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Amanda Ndubuisi, Venkataraman Thangadurai
Summary: This study investigates the effects of substituting Co with Fe on the crystal structure and electrochemical properties of the Perovskite-type mixed ionic and electronic conductors. The results show that partial substitution of Fe on the Co site improves the oxygen reduction reaction (ORR) activity of the PSCF perovskites.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Sea-Fue Wang, Yung-Fu Hsu, Yi-Le Liao, Shih-Ting Huang, Piotr Jasinski
Summary: The perovskite NdSrCo2O5+delta (NSCO) shows high electrical conductivity and is used as the cathode material for Ce0.8Gd0.2O2-delta (GDC)-supported microtubular solid oxide fuel cells (MT-SOFCs). By varying design parameters, the MT-SOFC with an outer tube diameter of 1.86 mm, an electrolyte thickness of 180 um, and a 5NSCO-5GDC composite cathode exhibits the best performance, with high power density and mechanical integrity. The results demonstrate the high electrochemical activity of the NSCO-GDC composite and exceed existing MT-SOFCs in terms of power density.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Electrochemistry
Andrei Klyndyuk, Dzmitry S. Kharytonau, Michal Mosialek, Ekaterina A. Chizhova, Anna Komenda, Robert P. Socha, Malgorzata Zimowska
Summary: Double-doped NdBa(Fe, Co, Cu) (2)O5+delta layered perovskites were prepared and examined in this study. The physicochemical analysis showed that these materials have good electrical conductivity and linear thermal expansion coefficient, making them suitable as cathode materials for solid-oxide fuel cells.
ELECTROCHIMICA ACTA
(2022)
Article
Chemistry, Physical
Ding Zhou, Jiajia Fu, Xiangyu Dong, Yi-mei Yin, Zhanyong Wang, Jiayue Xu
Summary: A hetero-structured composite porous cathode was prepared by mixing two different perovskite materials, showing promising performance and stability for intermediate temperature solid oxide fuel cells (IT-SOFCs).
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Materials Science, Ceramics
Zhangfa Huang, Zhijun Liu, Hua Hu, Jianxin Wang, Ming Chen, Baohua Cao, Qin Wang, Jun Yang, Wanbing Guan, Tongxiang Liang
Summary: A Co-containing composite cathode material with low thermal expansion coefficient and good compatibility has been prepared by the solid-liquid method. The cathode exhibits low polarization resistance and high power density, making it a promising material for intermediate temperature solid oxide fuel cells.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Ceramics
Wendi Yi, Yaopeng Tian, Chunling Lu, Biao Wang, Yaowei Liu, Shoushan Gao, Bingbing Niu
Summary: This study presents the development of a new perovskite oxide, BCZY, as a cathode material for SOFCs. The BCZY cathode demonstrates excellent stability, good ORR activity, and superior CO2 tolerance at intermediate temperatures. The results indicate that BCZY could be a potential cathode material for IT-SOFCs.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2022)
Article
Chemistry, Physical
Aroosa Javed, Daniel Sikstrom, Venkataraman Thangadurai
Summary: Perovskite-type structure oxides with Nd1-xSrxCo0.8Fe0.2O3-delta (0 <= x <= 0.85) (NSCF) composition were synthesized to investigate the effect of Sr-doping on crystal structure and electrochemical performance. The NSCF compositions showed a transition from semiconducting to metallic behavior with increasing temperature. The electrochemical performance of NSCF electrodes with LSGM electrolyte was studied, and the composite electrode of Nd0.3Sr0.7Co0.8Fe0.2O3-delta - LSGM showed the best performance.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Energy & Fuels
Jiaming Yang, Junkai Wang, Lei Fu, Ke Wu, Zhengrong Liu, Kai Wu, Jun Zhou
Summary: The fiber-structured YCF-GDC composite oxide synthesized through modified electrospinning technique shows promising features as a highly active cathode for intermediate-temperature solid oxide fuel cells (IT-SOFCs) with relatively low resistance at 550 degrees C, offering potential for future applications.
Article
Chemistry, Physical
Huilin Zhang, Ting Chen, Zuzhi Huang, Guangzhou Hu, Juan Zhou, Shaorong Wang
Summary: A cathode-supported SOFC with improved electrochemical performance was successfully fabricated in this study, and the mechanism of electrochemical reaction was investigated using the DRT method. The results showed that the impregnated LSC particles increased the triple phase-boundaries and improved the oxygen reduction reaction rate.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
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
Chemistry, Physical
Daniel Sikstrom, Aroosa Javed, Shoaib Muhammad, Venkataraman Thangadurai
Summary: Perovskite-type Nd0.75Ba0.25Co0.8Fe0.2O3-delta (NBCF25) was synthesized via solid-state method and showed a single-phase orthorhombic structure. It exhibited minor reactivity with Sr and Mg-doped LSGM when sintered at 1050 degrees C. The sintered sample pellets showed a maximum conductivity of 674 S/cm at 700 degrees C. AC electrochemical impedance spectroscopy measurements on LSGM pellets revealed that NBCF25 has the lowest area-specific resistance of 0.07 omega cm(2) at 800 degrees C in air. Impedance spectroscopy genetic programming was used to understand the oxygen reduction reaction.
Article
Chemistry, Physical
Zhenwei Wang, Haibin Sun, Jiao Li, Xue Guo, Qiangqiang Hu, Zanzhong Yang, Fangyong Yu, Guochang Li
Summary: By infiltrating ESB, the polarization resistances and activation energy of LSCF cathodes were significantly reduced, improving the oxygen reduction reaction process and enhancing the performance of intermediate-temperature solid oxide fuel cells.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Materials Science, Ceramics
K. P. Padmasree, Ke-Yu Lai, Arumugam Manthiram
Summary: The calcium cobaltite Ca(3-x)La(x)Co(4-y)CuyO(9+delta) doped with x and y = 0 and 0.1 showed slightly affected electrical and thermal properties, with the undoped sample exhibiting improved symmetrical cell performance in intermediate-temperature solid oxide fuel cells.
CERAMICS INTERNATIONAL
(2022)
Article
Engineering, Multidisciplinary
Hongxia Gu, Meigui Xu, Yufei Song, Chuan Zhou, Chao Su, Wei Wang, Ran Ran, Wei Zhou, Zongping Shao
Summary: A new perovskite SrCo0.8Ti0.1Ta0.1O3-delta (SCTT) with high electrical conductivities, appropriate oxygen vacancy concentrations, and high bulk diffusion capability has been developed, showing favorable oxygen reduction reaction (ORR) activity at intermediate temperatures. The SCTT material exhibits high peak power density and durability in solid oxide fuel cells and protonic ceramic fuel cells, potentially accelerating the commercialization of IT-SOFC technology.
COMPOSITES PART B-ENGINEERING
(2021)
Article
Electrochemistry
M. Rao, S. H. Jensen, X. Sun, A. Hagen
Article
Chemistry, Physical
Anke Hagen, Hendrik Langnickel, Xiufu Sun
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2019)
Article
Electrochemistry
X. Sun, P. V. Hendriksen, M. B. Mogensen, M. Chen
Article
Chemistry, Physical
Megha Rao, Xiufu Sun, Anke Hagen
JOURNAL OF POWER SOURCES
(2020)
Article
Chemistry, Physical
A. Hagen, A. C. Wulff, P. Zielke, X. Sun, B. Talic, I Ritucci, H. L. Frandsen, S. H. Jensen, W. R. Kiebach, P. Hendriksen
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2020)
Article
Chemistry, Physical
S. Anelli, E. Hernandez, L. Bernadet, X. Sun, A. Hagen, F. Baiutti, M. Torrell, A. Tarancon
JOURNAL OF POWER SOURCES
(2020)
Article
Engineering, Environmental
Yanru Yang, Xiaofeng Tong, Anne Hauch, Xiufu Sun, Zhibin Yang, Suping Peng, Ming Chen
Summary: The study investigates the long-term durability of Ni/yttria-stabilized zirconia (YSZ) fuel electrode supported SOECs operated at different temperatures. It is found that operating at 750 degrees Celsius results in the best overall performance, with stable operation and minimal degradation over time.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Materials Science, Ceramics
Zheng Ma, Yongyong Li, Yifeng Zheng, Wenlu Li, Xingyu Chen, Xiufu Sun, Xing Chen, Juan Zhou
Summary: La0.75Sr0.25Cr0.5Mn0.5O3-δ is a potential cathode material for solid oxide electrolysis cells (SOEC) due to its excellent redox stability and catalytic ability for fuel gas. Experimental results show that SOEC can effectively electrolyze CO2 and H2O under different operating conditions, demonstrating its potential for high temperature electrolysis applications.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Physical
Xiufu Sun, Yuliang Liu, Peter Vang Hendriksen, Ming Chen
Summary: The study tested three cells under different conditions to mimic gas flow series or parallel arrangements, finding that a gas-flow series arrangement led to reduced cell degradation by reducing the overall cell voltage degradation rate. This was attributed to the milder conditions and reduced polarization in the gas flow series case compared to the parallel flow case.
JOURNAL OF POWER SOURCES
(2021)
Article
Chemistry, Physical
Suhas Nuggehalli Sampathkumar, Philippe Aubin, Karine Couturier, Xiufu Sun, Bhaskar Reddy Sudireddy, Stefan Diethelm, Mar Perez-Fortes, Jan Van Herle
Summary: This study tested a five-cell reversible solid oxide cell short stack and conducted cyclic durability testing. The results showed that the voltage degradation rate and fuel/steam utilization of the rSOC varied in different modes, and the post-cycle steady-state degradation rate indicated an improved lifetime.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Energy & Fuels
Anke Hagen, Riccardo Caldogno, Federico Capotondo, Xiufu Sun
Summary: Solid oxide electrolyser (SOE) technology plays a significant role in energy systems, providing grid balance, energy storage, and green fuels for transportation. Metal supported cells have better performance and stability under medium temperature operating conditions.
Article
Electrochemistry
A. Hagen, X. Sun, B. R. Sudireddy, A. H. Persson
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2020)
Article
Electrochemistry
Xiaofeng Tong, Peter Vang Hendriksen, Anne Hauch, Xiufu Sun, Ming Chen
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2020)
Article
Electrochemistry
M. Lang, C. Bohn, K. Couturier, X. Sun, S. J. McPhail, T. Malkow, A. Pilenga, Q. Fu, Q. Liu
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2019)
Review
Green & Sustainable Science & Technology
M. B. Mogensen, M. Chen, H. L. Frandsen, C. Graves, J. B. Hansen, K. Hansen, A. Hauch, T. Jacobsen, S. H. Jensen, T. L. Skafte, X. Sun
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)