Article
Energy & Fuels
Markos Koseoglou, Evangelos Tsioumas, Iordanis Panagiotidis, Dimitrios Papagiannis, Nikolaos Jabbour, Christos Mademlis
Summary: This paper proposes an improved equivalent circuit model for lithium-ion batteries that can simulate the current-voltage characteristics under various operating conditions. The model takes into account the variations in state of charge, temperature, and charging-discharging current, and its effectiveness and feasibility have been experimentally verified.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Chemistry, Analytical
Samuel Cruz-Manzo, Paul Greenwood
Summary: In this study, a new impedance model for a polymer electrolyte fuel cell (PEFC) was developed considering factors such as water vapor transport and ionomer swelling/dehydration. The model can simulate inductive loops at low frequencies and predict changes in the impedance spectrum of the PEFC.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2021)
Article
Energy & Fuels
Daniel Martin Brieske, Alexander Warnecke, Dirk Uwe Sauer
Summary: The lithium-sulfur battery is seen as a promising rechargeable energy system due to its high energy density and reduced use of rare earth materials. Research shows that certain internal process steps from lead-acid batteries can be transferred to lithium-sulfur technology and verified through electrochemical impedance spectroscopy.
JOURNAL OF ENERGY STORAGE
(2021)
Article
Engineering, Electrical & Electronic
Takahiro Himuro, Yoji Saito
Summary: A label-free DNA biosensor was devised to detect DNase I activity using electrochemical impedance spectroscopy. The increase in impedance after DNA cleavage by DNase I was measured to achieve DNase detection. A definite correlation between DNase concentration and impedance-increase rate was obtained within a certain concentration range.
JOURNAL OF ELECTRONIC MATERIALS
(2021)
Article
Electrochemistry
Christophe Gerling, Matthias Hanauer, Ulrich Berner, K. Andreas Friedrich
Summary: The low-frequency inductive features in PEMFC have been investigated by differential measurements and numerical simulation. The contributions of slow platinum oxide kinetics and ionomer humidification are examined, with the latter found to be more relevant at medium to high currents. The inductive loops exhibit a strong dependence on current density and relative gas humidity, and can reach over 150 mV dec(-1) at high load.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2023)
Article
Computer Science, Information Systems
Javier Olarte, Jaione Martinez de Ilarduya, Ekaitz Zulueta, Raquel Ferret, Unai Fernandez-Gamiz, Jose Manuel Lopez-Guede
Summary: Obtaining tools for analyzing and predicting battery performance is challenging due to the involvement of non-destructive evaluation procedures. At the research level, sensors for cell-level monitoring and tools like electrochemical impedance spectrometry are being developed to estimate the battery's health and charge status.
Review
Biochemical Research Methods
Yang Liu, DongMing Li, Ji Qian, Bao Di, Gang Zhang, ZhenHui Ren
Summary: This review summarizes the application of electrical impedance spectroscopy (EIS) in plant root measurement, discussing experimental schemes, instruments, electrode, excitation frequency range, root electrical characteristics, equivalent circuit, and the combination of EIS with artificial intelligence. It suggests future research should focus on the miniaturization of measurement equipment, standardization of planting environment, and intelligentization of root diagnosis.
Article
Chemistry, Physical
Davood Peyrow Hedayati, Gita Singh, Michael Kucher, Tony D. Keene, Robert Boehm
Summary: This study aims to improve the performance of solid-state supercapacitors (SSCs) by simulating their impedance using a defined equivalent circuit (EC) model. Two models, a mathematical model and a physicochemical model, were used and the impedance was measured using electrochemical impedance spectroscopy (EIS). The physicochemical model showed higher approximation ability due to its more complex circuit design, but also required more modeling and optimization effort.
Article
Engineering, Electrical & Electronic
Maxime Van Haeverbeke, Michiel Stock, Bernard De Baets
Summary: An identification algorithm based on gene expression programming is introduced to support researchers in deciding which equivalent electrical circuit to use for analyzing electrochemical impedance spectroscopy measurements. This algorithm enhances the interpretability of resulting circuits by removing redundant components and departing from an initial population of widely applied circuits, enabling quick identification of known circuits capable of modeling the data.
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
(2021)
Article
Energy & Fuels
Thiruvonasundari Duraisamy, Deepa Kaliyaperumal
Summary: This paper analyzes the passive cell balancing method of Li-ion battery for e-mobility application, enhancing energy usage and battery life cycle. By developing an electrical equivalent circuit battery model and experimenting with passive balancing topologies, a voltage-based balancing algorithm is implemented to balance the cells.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Engineering, Electrical & Electronic
Mitar Simic, Adrian K. Stavrakis, Tijana Kojic, Varun Jeoti, Goran M. Stojanovic
Summary: This article presents a method for in situ parameter estimation of the Randles circuit. It overcomes the limitations of iterative and PC-based estimation approaches and is suitable for implementation on cost-effective microcontroller-based portable systems.
IEEE SENSORS JOURNAL
(2023)
Article
Chemistry, Analytical
Samuel Cruz-Manzo, Paul Greenwood
Summary: This study proposes a new electrochemical impedance model for predicting oxygen diffusion resistance in PEFCs, which is validated through EIS measurements in different layers of the PEFC. The results show that the estimated oxygen diffusion resistances are distributed in the cathode catalyst layer (CCL) and gas diffusion layer (GDL) of the PEFC, providing a deeper understanding of the influence of electrochemical mechanisms on EIS measurements.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2021)
Article
Energy & Fuels
Arianna Baldinelli, Antunes Staffolani, Francesco Nobili, Linda Barelli
Summary: Energy storage systems are crucial for achieving a net-zero carbon society. Solid Oxide Cells, as a type of electrochemical energy conversion technology, can store renewable electricity in a chemical energy vector. However, frequent switching between fuel cell and electrolyser modes may lead to reduced efficiency. This study analyzes the impact of process variables on the performance of Solid Oxide Cells.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Multidisciplinary Sciences
Mohd Taukeer Khan, Peng Huang, Abdullah Almohammedi, Samrana Kazim, Shahzada Ahmad
Summary: The study uncovered the mechanistic behavior of negative capacitance in perovskite solar cells by analyzing impedance spectra, C-f spectra, and J-V characteristics, revealing that the appearance of negative capacitance in p-i-n type PSCs is primarily associated with the migration of halide ions and vacancies.
Article
Chemistry, Physical
Qihao Lin, Guoqing Chen, Shiwen Zou, Wenlong Zhou, Xuesong Fu, Shuyan Shi
Summary: Copper and its alloys are widely used in marine environments, and anisotropic corrosion affects the corrosion kinetics of copper. This paper studied the corrosion behavior of Cu(100) and Cu(111) using electrochemical impedance spectroscopy (EIS) after OCP tests. The results showed that Cu(100) exhibited better corrosion resistance. The corrosion mechanism of Cu(100)/Cu(111) in different stages was proposed based on the equivalent electrical circuit (EEC) diagrams.
Article
Chemistry, Physical
Ramiro Medina-Orta, Gladis J. Labrada-Delgado, Hector G. Silva-Pereyra, Emma Maria Ortega, Valentin Perez-Herranz, Maria Guadalupe Sanchez-Loredo
Summary: Gold nanoparticles were synthesized and incorporated onto a porous Ni electrode to enhance its catalytic performance in the hydrogen evolution reaction, showing improvement mainly due to the intrinsic catalytic activity of the Au nanoparticles. The reaction mechanism was estimated to follow the Volmer-Heyrovsky mechanism based on Tafel representations and EIS results.
Article
Materials Science, Ceramics
Maria-Jose Sanchez-Rivera, Maria Jose Orts, Valentin Perez-Herranz, Sergio Mestre
Summary: Tin oxide is a widely studied semiconductor material with high conductivity and corrosion resistance. This research investigates the sintering behavior of SnO2-based powder with the addition of Li2CO3 as a sintering aid. The study analyzes the effects of the amount of sintering aid and thermal treatment parameters on densification.
BOLETIN DE LA SOCIEDAD ESPANOLA DE CERAMICA Y VIDRIO
(2023)
Article
Environmental Sciences
J. Mora-Gomez, S. Escriba-Jimenez, J. Carrillo-Abad, M. Garcia-Gabaldon, M. T. Montanes, S. Mestre, V. Perez-Herranz
Summary: This study focused on the electrochemical oxidation of the insecticide Chlorfenvinphos (CVP) using boron-doped diamond (BDD) and low-cost tin dioxide doped with antimony (Sb-doped SnO2) as anodes. The results showed that higher applied current density led to higher degradation and mineralization of CVP for both types of anodes. While the BDD electrode performed better overall, the ceramic anodes proved to be an interesting alternative, capable of completely degrading CVP at high current densities.
Article
Engineering, Environmental
Alan Nelson Arenhart Heberle, Giulia Grimaldi Falavigna Vianna, Salatiel Wohlmuth da Silva, Valentin Perez-Herranz, Andrea Moura Bernardes
Summary: This study compares the performance of an electrochemical membrane reactor and a membraneless reactor for the removal of Atenolol. The results show that the membrane reactor has higher mineralization current efficiency and lower energy consumption, making it more effective for ATN removal.
JOURNAL OF WATER PROCESS ENGINEERING
(2022)
Article
Chemistry, Physical
J. Carrillo-Abad, J. Mora-Gomez, M. Garcia-Gabaldon, M. T. Montanes, S. Mestre, V Perez-Herranz
Summary: The increase in pharmaceutical compound consumption has led to their increased presence in body fluids. This study investigates the degradation of Atenolol (ATL) beta-blocker using Sb-doped SnO2 ceramic anodes coated with Zn or Cd ferrites, and shows that ferrite anodes can improve performance, with cadmium ferrite being a potential alternative.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Green & Sustainable Science & Technology
M. C. Marti-Calatayud, E. Dionis, S. Mestre, V Perez-Herranz
Summary: In this study, microporous ceramics made of antimony-doped tin dioxide were used as standalone electrodes in a novel electrofiltration process for the degradation of norfloxacin. The ceramics demonstrated high active area and the ability to simultaneously generate hydroxyl radicals and allow electrolyte permeation, resulting in effective degradation of organic compounds. Compared to a conventional flow electrolysis reactor, the electrofiltration configuration showed improved utilization of generated hydroxyl radicals and higher degradation rates.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Engineering, Environmental
Julia Bitencourt Welter, Matheus Fell Simonaggio, Salatiel Wohlmuth da Silva, Manuel Cesar Marti-Calatayud, Valentin Perez-Herranz, Jane Zoppas Ferreira
Summary: This study evaluated the transport of atenolol in an electrodialysis cell to lay the foundation for the application of hybrid electrooxidation and electrodialysis processes. The results showed that atenolol removal rate can be high under specific current density conditions. In addition, the residual atenolol in the ion-exchange membrane can be desorbed by applying an electric field at inverse polarity, providing the possibility for the implementation of the hybrid process.
JOURNAL OF WATER PROCESS ENGINEERING
(2022)
Article
Environmental Sciences
C. Domingo-Torner, M. Garcia-Gabaldon, M. C. Marti-Calatayud, S. Mestre, V. perez-Herranz
Summary: Advanced Oxidation Processes are efficient for removing organic pollutants from wastewaters. This study characterized a ceramic electrode with a photocatalytic layer, BiFeO3, and tested it for norfloxacin oxidation with and without light. The electrode's photoactivity was significantly enhanced by BiFeO3, resulting in higher mineralization of norfloxacin under light conditions. The oxidation pathway of norfloxacin was proposed based on analysis of oxidation byproducts. The study also analyzed reactor performance indicators and showed that lower current densities and light improved current efficiency and energy consumption.
Article
Environmental Sciences
Eduardo Henrique Rotta, Manuel Cesar Marti-Calatayud, Valentin Perez-Herranz, Andrea Moura Bernardes
Summary: Electrodialysis is an innovative technique for phosphates recovery from municipal wastewater. This study investigated the dependency of chemical reactions during ion transport on initial pH and concentration using a heterogeneous anion-exchange membrane. The results showed that different pH and concentration conditions affected the system's characteristics, leading to variations in limiting current density and the appearance of Gerischer arcs in electrochemical impedance spectroscopy spectra. The obtained findings are expected to contribute to the utilization of electrodialysis in phosphates recovery under various environmental conditions.
Article
Chemistry, Physical
Jiayu Peng, Juan J. Giner-Sanz, Livia Giordano, William P. Mounfield III, Graham M. Leverick, Yang Yu, Yuriy Roman-Leshkov, Yang Shao-Horn
Summary: Transition metal nitrides have potential as electrocatalysts in fuel cells and electrolyzers, but their instability in acid limits their function. However, complete nitride dissolution and ammonia formation in acid can provide new opportunities for on-demand ammonia generation. This study finds that lowering the nitrogen 2p band center weakens metal-nitrogen bonds, increases labile metallic character, and enhances ammonia formation kinetics in acid.
Article
Biochemistry & Molecular Biology
Kayo Santana Barros, Monica Carvalheira, Bruno Costa Marreiros, Maria Ascensao M. Reis, Joao Goulao Crespo, Valentin Perez-Herranz, Svetlozar Velizarov
Summary: For the production of polyhydroxyalkanoates (PHA) using nitrogen-rich feedstocks, the typical strategy of restricting cell growth by nitrogen limitation is not applicable. In this study, Donnan dialysis was evaluated as an alternative method to remove excess nitrogen ions by separating ammonium ions from volatile fatty acids in the media. The use of Fumasep and Ralex membranes showed better performance in terms of ammonium extraction compared to Ionsep.
Article
Biochemistry & Molecular Biology
Lorena Hernandez-Perez, Manuel Cesar Marti-Calatayud, Maria Teresa Montanes, Valentin Perez-Herranz
Summary: The use of electrodialysis (ED) has expanded in recent years with the investigation of new modes of operation. Overlimiting currents in ED involve electroconvection and the generation of vortices, which enhance the mixing process and improve ion transport across membranes. This study applies frequency analysis to investigate the interaction of different parameters on the development of electroconvection near anion-exchange membranes, providing insights for the development of ED systems with desired electroconvection. Chronopotentiometric curves and Fast Fourier Transform analysis are used to study transmembrane voltage oscillations. The results show diverse behaviors depending on forced convection level and current density, and the synergistic effect of forced convection and overlimiting currents increases signal amplitude, particularly at frequencies around 0.1 Hz. Fast Fourier Transform analysis identifies the conditions that lead to a transition between stable and chaotic electroconvection modes in a given system.
Article
Engineering, Environmental
L. Hernandez-Perez, J. Carrillo-Abad, E. M. Ortega, V Perez-Herranz, M. T. Montanes, M. C. Marti-Calatayud
Summary: Antimony is commonly found as an impurity in wastewaters generated in copper metallurgy. This study investigated the recovery of antimony from these wastewaters using voltammetric and electrodeposition tests. The results showed that the deposition of antimony is a mass transfer-controlled process and that an increase in hydrochloric acid concentration improves the deposition of antimony. The use of a rotating disk electrode also enhanced the current density and rate of antimony deposition.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
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)