Article
Materials Science, Ceramics
Xiaojiao Zhang, Jiao Li, Lu Wang, Xue Guo, Haibin Sun, Hua Zhang, Qiangqiang Hu
Summary: In this study, perovskite La0.8-xBixSr0.2FeO3-delta (LBSF, x = 0.0-0.5) nanofibers were prepared with great crystallinity by electrospinning method and utilized as cathodes for intermediate temperature solid oxide fuel cells (ITSOFCs). LBSF4 cathode demonstrated the best performance with high polarization resistance and maximum power density. The incorporation of Bi element in LBSF4 improved its catalytic activity, making it promising as a cathode material in IT-SOFCs.
CERAMICS INTERNATIONAL
(2021)
Article
Energy & Fuels
Yakun Wang, Kai Pei, Bote Zhao, Yun Zhao, Haobing Wang, Quan Niu, Yu Chen
Summary: The study found that the composite electrode with an 8:2 mass ratio of BSCFN-BZCYYb exhibits the best performance in fuel cells, with a peak power density of 1.14 W/cm2, an electrode polarization resistance of 0.062 ohm·cm2, and a reasonable durability test lasting 24 hours at -0.5A/cm2 at 750 degrees Celsius. Additionally, a stable operation of the cell in dual modes of electrolysis and fuel cell for approximately 50 hours at +/- 0.5 A/cm2 was achieved, demonstrating good reversibility.
Article
Chemistry, Physical
Dong Xu, Xingkai Zhou, Yu Li, Xiaole Yu, Zhexiang Yu, Bochang Shi, Yaowei Mi, Bangze Wu, Lin Ge
Summary: This work investigates the sintering properties, thermal expansion coefficient, and chemical stability of hexagonal perovskite-related oxides Ba7Ta3.7Mo1.3O20.15 (BTM). The study also evaluates the chemical compatibility between BTM electrolyte and various electrode materials. The results show that BTM reacts highly with Ni, Co, Fe, Mn, Pr, Sr, and La elements in the electrodes, leading to the formation of resistive phases and deterioration of electrochemical properties.
Article
Electrochemistry
F. Kukk, S. Pylypko, E. Lust, G. Nurk
Summary: This study examines the effect of different thicknesses of hydrogen electrode active layer on the performance of reversible solid oxide cells. The results show that cells with an active layer thickness ranging from 7 to 16μm perform the best under specific operating conditions.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2023)
Article
Materials Science, Ceramics
K. H. Tan, H. A. Rahman, M. S. Azami, U. A. Yusop, N. A. Baharuddin, M. I. Nor Ma'arof
Summary: This paper presents the development and characterization of a new composite cathode material BSCF-SDCC for low-temperature solid oxide fuel cell cathode application. The BSCF-SDCC composite cathode demonstrated excellent microstructural, chemical, and electrochemical properties. The composite cathode exhibited low polarization resistance and high conductivity, making it a promising candidate for low-temperature solid oxide fuel cell cathodes.
CERAMICS INTERNATIONAL
(2022)
Article
Electrochemistry
Mariarita Santoro, Elisabetta Di Bartolomeo, Igor Luisetto, A. S. Arico, G. Squadrito, S. C. Zignani, M. Lo Faro
Summary: Investigated the indirect internal dry reforming occurring in the anodic chamber of a SOFC as a method to simplify feed management and improve performance.
ELECTROCHIMICA ACTA
(2022)
Article
Chemistry, Physical
Di Yang, Gang Chen, Hailiang Liu, Linlin Zhang, Yang He, Xuebai Zhang, Kai Yu, Shujiang Geng, Ying Li
Summary: The study found that the NCAL cathode has better electrochemical performance at 550 degrees C, especially when used in a composite with GDC with a mass ratio of 8/2. High temperature sintering can decrease the performance of the composite cathode, while the high oxygen vacancy concentration at the NCAL-Li2CO3/GDC interfaces enhances oxygen ion conductivity and lowers the activation energy for reactions.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Engineering, Chemical
Shenglin Liu, Wu Menglin, Lanying Lu, Jiupai Ni, Chengsheng Ni, John T. S. Irvine
Summary: The perovskite La0.5Ba0.5CuxFe1-xO3-delta was studied as a cathode for a protonic solid oxide fuel cell (H-SOFC), showing potential for improved performance. The introduction of Fe in the composition enhanced certain conductivity parameters but reduced proton conductivity, while mixed cations in La0.5Ba0.5Cu0.5Fe0.5O3-delta achieved a low thermal expansion coefficient.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Chemistry, Physical
Marzieh Kiani, Mohammad Hossein Paydar
Summary: This paper investigates the electrochemical and microstructural properties of a fibrous structure of SrCo0.8Fe0.1Ga0.1O3-delta (SCFG) infiltrated with an SDC electrolyte for use as a cathode in SOFCs. Electrospinning is used to produce SCFG fibers, and infiltrating SDC nanoparticles into the SCFG cathode enhances its electrochemical performance. The lowest polarization resistance of 0.03 omega cm(2) at 800 degrees C is achieved by the SCFG with a fibrous structure containing 14 wt% SDC nanoparticles.
Article
Materials Science, Ceramics
Hongpeng Fan, Zhijun Liu, Yang Wu, Qin Wang, Jun Yang, Wanbing Guan, Liang Han, Jianxin Wang
Summary: The performance of solid oxide fuel cells is improved by physically mixing Ce0(.9)Gd0(.1)O(1.95) (GDC) in La0(.6)Sr0(.4)CoO(3-)(& delta;) (LSC) cathode. The grain size and chemical compatibility of the powder were analyzed using X-ray diffraction, and scanning electron microscopy was used to observe the microstructure of powder and cells. The LSC-GDC (5:5) cathode showed the minimal thermal expansion coefficient, smallest cathode polarization resistance, lowest activation energy, highest power density, and long-term stability.
INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY
(2023)
Article
Chemistry, Physical
O. Korjus, P. Moller, K. Kooser, T. Kaambre, O. Volobujeva, J. Nerut, S. Kotkas, E. Lust, G. Nurk
Summary: Ni-doping in LSCT fuel electrode significantly influences catalytic activity, stability, and cation mobility, leading to reduced polarization resistance, stabilized structure, suppressed element migration, and avoidance of key issues.
JOURNAL OF POWER SOURCES
(2021)
Article
Electrochemistry
Ian A. Robinson, Yi-Lin Huang, Samuel A. Horlick, Mohammed Hussain, Alireza Pesaran, Eric D. Wachsman
Summary: By modifying the cathode surface chemistry at a relatively low temperature, the activity and durability of high-performing, low-temperature cathodes can be enhanced. This modification activates the highly defected surface and maintains the nanoscale electrocatalysts without the need for high-temperature sintering. The modified cathode exhibits significantly reduced impedance and increased stability.
ELECTROCHIMICA ACTA
(2023)
Article
Chemistry, Physical
Muneeb Irshad, Raazia Idrees, Khurram Siraj, Imran Shakir, Muhammad Rafique, Qurat ul Ain, Rizwan Raza
Summary: The cobalt doped perovskite cathode material LaNi1-xCoxO3-delta (x = 0.4, 0.6, 0.8) shows promising performance as a mixed ionic electronic conductor (MIEC) for intermediate temperature solid oxide fuel cells (IT-SOFC), especially with x = 0.6 due to its porous and well connected structure leading to enhanced electrochemical reactions.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Long Q. Le, Charlie Meisel, Carolina H. Hernandez, Jake Huang, Youdong Kim, Ryan O'Hayre, Neal P. Sullivan
Summary: Proton-conducting ceramics play an important role in electrochemical electricity generation, energy storage, and fuels synthesis. The study finds that the durability of protonic-ceramic electrolyzers is superior to fuel cells. The introduction of an interlayer greatly reduces the degradation rate in both fuel cells and electrolyzers.
JOURNAL OF POWER SOURCES
(2022)
Article
Chemistry, Physical
Ji Min Im, Kyeong Eun Song, Harald Schlegl, Hyunil Kang, Wonseok Choi, Seung-Wook Baek, Jun-Young Park, Hyun-Suk Kim, Jung Hyun Kim
Summary: In this study, the unique microstructure and electrical properties of SmBa0.5Sr0.5Co2O5+d (SBSCO) layered perovskite cathodes with dense and porous microstructures were analyzed by changing the applied current. It was observed that unique nanostructures were formed when a high current was applied to cathodes with both dense and porous microstructures of the same chemical composition for conductivity measurement.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Editorial Material
Chemistry, Physical
Loreto Daza, Ana Serrano-Lotina
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2015)
Article
Chemistry, Physical
M. J. Escudero, I. Gomez de Parada, A. Fuerte
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2015)
Article
Electrochemistry
M. J. Escudero, A. Fuerte
Editorial Material
Chemistry, Physical
M. J. Escudero, J. L. Serrano
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2019)
Article
Chemistry, Physical
Maria Jose Escudero, Maria Pilar Yeste, Miguel Angel Cauqui, Miguel Angel Munoz
Article
Chemistry, Physical
B. Bochentyn, P. Blaszczak, M. Gazda, A. Fuerte, S-F Wang, P. Jasinski
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2020)
Article
Chemistry, Physical
M. J. Escudero, C. A. Maffiotte, J. L. Serrano
Summary: The study demonstrates that the MoNi-Ce anode exhibits high tolerance to the co-presence of H2S and D4 in biogas and good resistance to carbon deposition.
JOURNAL OF POWER SOURCES
(2021)
Article
Chemistry, Physical
S. U. Costilla-Aguilar, M. J. Escudero, R. F. Cienfuegos-Pelaes, J. A. Aguilar-Martinez
Summary: Double perovskite La1.8Sr0.2CoFeO5+delta (DP-LSCF) exhibits excellent chemical compatibility and physical-chemical properties, making it a promising cathode material for intermediate temperature solid oxide fuel cells.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
S. U. Costilla-Aguilar, M. Pech-Canul, M. J. Escudero, R. F. Cienfuegos-Pelaes, J. A. Aguilar-Martinez
Summary: The study investigated the effect of complexing agent/transition metal ratio on GDC powders, revealing that higher temperatures and R ratios led to larger grain sizes, with GDC-R1 showing a larger specific surface area. The GDC-R1 sample sintered at lower temperatures exhibited the lowest average grain size and the highest ionic conductivity.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
A. J. Navarro, M. A. Gomez, L. Daza, A. Molina-Garcia, J. J. Lopez-Cascales
Summary: The performance of an open cathode fuel cell was investigated with different gas diffusion layers in its membrane electrode assemble (MEA) preparation. A new diffusion layer called eCoCell developed in the laboratory was compared with the commercial diffusion layer Sigracet 38BC. The characterization of both diffusion layers was conducted through measuring porosity, electrical conductivity, thermal conductivity, and hydrophobicity. The results showed that the new gas diffusion layer, eCoCell, exhibited optimum performance across all studied temperatures due to its high hydrophobicity, bimodal pore distribution, low thermal conductivity, and high electrical conductivity.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Multidisciplinary Sciences
A. J. Navarro, M. A. Gomez, L. Daza, J. J. Lopez-Cascales
Summary: The gas diffusion layer (GDL) is a crucial part of a proton exchange membrane fuel cell. In this work, a low cost GDL was produced using a non-woven paper-making process. It exhibited good electrical and thermal conductivity, high porosity, good pore morphology, high hydrophobicity, and gas permeability. Performance tests in a single open cathode fuel cell yielded promising results.
SCIENTIFIC REPORTS
(2022)
Article
Energy & Fuels
Maria Jose Escudero, Conrado Valero, Miguel Angel Cauqui, Daniel Goma, Maria Pilar Yeste
Summary: This paper focuses on the synthesis of ceria-doped Ni-ZrO2 nanocrystals and its application as an anode material for solid oxide fuel cells fueled by biogas. The electrochemical behavior of the material was evaluated and it was found that the limiting factor of cell performance is the low-frequency electrode processes related to gas diffusion and reforming reactions. The cell showed stable performance in biogas.
Article
Electrochemistry
M. J. Escudero, C. A. Maffiotte, J. L. Serrano
Summary: In this study, an electrolyte-supported solid oxide fuel cell with WNi-Ce as anode was evaluated with direct feed of simulated biogas mixtures. The results showed that the performance of the cell did not degrade in different biogas compositions, and even improved in biogas rich in methane. However, the presence of siloxanes in biogas caused a progressive degradation of the cell's performance, mainly due to an increase in polarization resistance attributed to biogas reforming and fuel conversion processes.
ELECTROCHIMICA ACTA
(2022)
Article
Materials Science, Ceramics
Erwin Sepulveda, R. Mangalaraja, R. Udayabhaskar, Ramon Cobo, Maria Escudero Berzal, Jose Jimenez, Christopher Salvo, Carlos P. Camurri
Summary: In this study, La1 - xSrxGa1-yMgyO3 (LSGM) samples with different compositions and sintering temperatures were prepared by the fast combustion method. The electrical properties of LSGM were evaluated, and it was found that LSGM can exist in two different crystal phases simultaneously. The sintering temperature and composition of the samples were found to have an influence on the conductivity.
JOURNAL OF ELECTROCERAMICS
(2022)
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)
