Review
Chemistry, Physical
Alexandr Oshchepkov, Antoine Bonnefont, Gael Maranzana, Elena R. Savinova, Marian Chatenet
Summary: Direct borohydride fuel cells face challenges in achieving high efficiency, including the selection of suitable catalysts, optimization of reaction conditions, and the choice of appropriate membrane materials.
CURRENT OPINION IN ELECTROCHEMISTRY
(2022)
Article
Chemistry, Physical
Aldona Balciunaite, Ausrine Zabielaite, Daina Upskuviene, Loreta Tamasauskaite-Tamasiunaite, Irena Stalnioniene, Leonas Naruskevicius, Jurate Vaiciuniene, Algirdas Selskis, Remigijus Juskenas, Eugenijus Norkus
Summary: The study investigated the oxidation of sodium borohydride on platinum nanoparticles modified copper/titanium catalysts, utilizing various characterization techniques to analyze the composition, structure, and surface morphology of the catalysts. The oxidation reaction was studied using cyclic voltammetry and chrono-techniques on the PtNPsCu/Ti catalysts.
Article
Chemistry, Physical
Vladislav S. Menshikov, Ivan N. Novomlinsky, Sergey V. Belenov, Anastasya A. Alekseenko, Olga I. Safronenko, Vladimir E. Guterman
Summary: Pt/(SnO2/C) catalyst is the most active among the studied catalysts in methanol and formic acid electrooxidation reactions; the nature of the reagent affects the rates of corresponding reactions; Cu atoms and SnO2 nanoparticles positively influence the catalytic activity of platinum.
Article
Chemistry, Physical
Jadranka Milikic, Raisa C. P. Oliveira, Andres Tapia, Diogo M. F. Santos, Nikola Zdolsek, Tatjana Trtic-Petrovic, Milan Vranes, Biljana Sljukic
Summary: Three different carbon-supported metal nanoparticle electrocatalysts were prepared and characterized, showing different behavior in the electrochemical investigation. In direct borohydride-peroxide fuel cell tests, the Pt/c-IL anode achieved approximately four times higher power density compared to the Au/c-IL anode.
Article
Chemistry, Physical
Junyan Liu, Liting Xu, Xingwei Li
Summary: This work successfully prepared TiO2 coated by nitrogen-doped carbon (TiO2 @NC) as the support for platinum (Pt/TiO2 @NC) in the methanol oxidation reaction. The Pt/TiO2 @NC catalyst showed significantly improved area specific activity compared to commercial Pt/C catalyst, along with a low Tafel slope and high charge transfer coefficient.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Materials Science, Multidisciplinary
Thanaphat Atjayutpokin, Srisin Eaimsumang, Siwaporn Meejoo Smith, Supakorn Boonyuen, Apanee Luengnaruemitchai
Summary: The catalytic activities of Au NPs and Au-CuO catalysts were studied in OSRM and CO oxidation reactions. It was found that the addition of an optimal amount of NaBH4 resulted in small-sized and uniformly distributed Au NPs catalysts, which exhibited higher catalytic activity in the OSRM. The Au-CuO catalysts showed the highest methanol conversion rate, while the monometallic Au catalyst had almost five times higher catalytic CO oxidation activity.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Chemistry, Physical
Bihao Hu, Peng Chen, Chuanlan Xu, Jiazhi Meng, Jinliang Cai, Ying Yang, Biao Zhang, Danmei Yu, Xiaoyuan Zhou, Changguo Chen
Summary: In this study, a bimetallic nickel zinc catalyst with hierarchical morphology was successfully synthesized and shown to have excellent catalytic activity and selectivity in borohydride oxidation reaction. The study also demonstrated a high peak power density in a direct borohydride fuel cell with the catalyst as anode.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Engineering, Environmental
Haiyin Zhong, Ruixuan Wang, Zhihao Yan, Li Ling, Hong Li
Summary: Understanding the enhancement of Pt-O/Pt active sites through control of calcination temperature and irreversible adsorption of Bi(III) can significantly improve electrocatalytic activities. The presence of TiO2-950's electron-rich R(110) facet promotes the formation of bimetallic Bi-Pt sites, leading to a remarkable increase in electrocatalytic activity towards methanol oxidation.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Energy & Fuels
Islam M. Al-Akraa, Ahmad M. Mohammad
Summary: In this study, a spin-coated titanium oxide modified platinum catalyst was fabricated and optimized for methanol electro-oxidation. The annealing temperature was adjusted to achieve the highest catalytic activity and stability. The PtTi-700 catalyst annealed at 700 degrees C showed the highest activity and stability, with approximately an 11-fold increase in oxidation current density and a 19-fold increase in stability after 50 potential scanning cycles. The enhancement of charge transfer kinetics and reduction of catalyst poisoning explained the origin of catalysis.
Article
Engineering, Environmental
Xuexian Wu, Yan Zhang, Yang Yang, Guodong Fu, Fengzhan Si, Jiahui Chen, Munir Ahmad, Zhibin Zhang, Chunyi Ye, Jiujun Zhang, Xian-Zhu Fu, Jing-Li Luo
Summary: Low loading Pt clusters are deposited on Ni2P with phosphorus vacancy which is coated at carbon cloth, forming efficient bifunctional electrocatalysts for hydrogen evolution reaction (HER) and selective methanol oxidation reaction (MOR) at methanol-water co-electrolysis. The Pt loading is only 12.97 mu g cm-2, and the synergistic effect with Ni2P substrate enables efficient MOR at low potential. The MOR potential is negatively shifted by 931 mV during co-electrolysis, saving 40-55% energy consumption for hydrogen production, while simultaneously co-generating value-added chemicals formate without CO2 emission.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Mohammad Bagher Askari, Hadi Beitollahi, Antonio Di Bartolomeo
Summary: Recently, the synthesis of a three-component catalyst consisting of zirconium oxide (ZrO2), nickel oxide (NiO), and reduced graphene oxide (rGO) in the form of ZrO2/NiO/rGO has been achieved by a simple one-step hydrothermal method. The catalyst exhibited excellent methanol and ethanol electrooxidation abilities with high current densities and cyclic stabilities, making it an attractive option for anode materials in alcoholic fuel cells. The detailed characterization and electrochemical tests demonstrate the outstanding capability of this new nanocatalyst.
Review
Materials Science, Ceramics
Shaik Gouse Peera, Chao Liu, Jaesool Shim, Akhila Kumar Sahu, Tae Gwan Lee, Manickam Selvaraj, Ravindranadh Koutavarapu
Summary: MXene is a promising two-dimensional material with unique properties that show potential applications as catalyst support for various reactions in fuel cells, particularly for the oxidation of methanol and ethanol. Recent research has focused on the stability and effectiveness of MXene supported catalysts, highlighting both opportunities and challenges in their use. Strategies for enhancing the electrocatalytic performance of MXene supported catalysts are being proposed to further develop efficient and durable catalyst systems.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Physical
Fan Liao, Siyu Chen, Yuwei Shen, Yanqing Li, Huixian Shi, Lai Xu, Wenxiang Zhu, Kui Yin, Mingwang Shao
Summary: The surface fluorinated nickel-graphene nano-composites synthesized via reduction of Si-H bonds in hydrothermal condition exhibit higher activity and kinetics for methanol oxidation reaction (MOR). The introduction of fluorine leads to the formation of nickelic, decreasing the reaction energy barrier for MOR. The strong electronegativity of fluorine atoms facilitates the attraction of OH- groups and repulsion of protons, contributing to the enhanced performance of F-Ni-G nanocomposites as MOR catalysts.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Aleksandra Selivanova, Victoria G. Demina, Egor E. Aydakov, Andrey A. Saraev, Vasily V. Kaichev, Valerii Bukhtiyarov
Summary: The oxidation of methanol on a Pt(1 1 1) single crystal surface was found to start at around 350 K, producing mainly CO2 and methyl formate. Key intermediates in the reaction include CO and formaldehyde, with formates exhibiting low thermal stability and carbonates showing extremely high thermal stability. Carbonates, along with CO, can inhibit the oxidation of methanol on the platinum surface.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Physical
Hongjing Wang, Lin Cui, Shuli Yin, Hongjie Yu, Kai Deng, You Xu, Xin Wang, Ziqiang Wang, Liang Wang
Summary: In this study, core-shell structured rambutan-like Au@PdRu nanocatalysts were successfully synthesized, showing superior activity and durability for energy-saving hydrogen production coupled with methanol oxidation.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)
Article
Chemistry, Physical
Bo-Yan Chen, Galina Dobele, Ance Plavniece, Aleksandrs Volperts, Loreta Tamasauskaite-Tamasiunaite, Eugenijus Norkus, Chi-Liang Chen, Yu-Chuan Lin
Summary: K-doped FeCx catalysts derived from the carbothermal reduction of the Fe-chitosan complex were investigated for the hydrogenation of CO2 to light olefins. Catalyst characterization and performance evaluation revealed a correlation between the physicochemical properties of the catalysts and their catalytic activities. Mechanistic studies identified various carbonate and formate species as intermediates involved in C2-6= synthesis. The most active catalyst, FeK@CS-(0.5)-py, exhibited the highest space-time yield of C-2-6(-) (13.7 mu mol(C2-6=)/g(Fe)/s).
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Physical
Sukomol Barua, Aldona Balciunaite, Jurate Vaiciunien, Loreta Tamasauskaite-Tamasiunaite, Eugenijus Norkus
Summary: In this study, NiMo/Ti and Au(NiMo)/Ti catalysts were prepared by electrodeposition and galvanic displacement method, and their catalytic performance for hydrogen evolution reaction (HER) was evaluated in an alkaline medium. The results showed that the Au(NiMo)/Ti-3 catalyst with an Au loading of 5.2 μg/cm^2 exhibited the lowest overpotential and the highest current density under certain metal loadings and temperature conditions.
Article
Chemistry, Multidisciplinary
Sukomol Barua, Aldona Balciunaite, Jurate Vaiciuniene, Loreta Tamasauskaite-Tamasiunaite, Eugenijus Norkus
Summary: In this study, three-dimensional gold-nickel-molybdenum (Au(NiMo)) catalysts were deposited on a titanium surface using electroplating and galvanic displacement techniques. Modification of NiMo with a low amount of Au crystallites resulted in enhanced activity for oxygen evolution reaction (OER) in the alkaline medium. The current densities for OER increased approximately 1.2-7.3 and 1.3-5.1 times with an increase in temperature from 25 up to 75 degrees C using the prepared 3D binary NiMo/Ti and Au(NiMo)/Ti catalysts, respectively.
Article
Chemistry, Physical
Loreta Tamasauskaite-Tamasiunaite, Jolita Jablonskiene, Dijana Simkunaite, Aleksandrs Volperts, Ance Plavniece, Galina Dobele, Aivars Zhurinsh, Vitalija Jasulaitiene, Gediminas Niaura, Audrius Drabavicius, Mari Juel, Luis Colmenares-Rausseo, Ivar Kruusenberg, Katlin Kaare, Eugenijus Norkus
Summary: In this study, a synthesis route for high-efficiency nitrogen-doped carbon materials was presented using kraft pulping residue, black liquor, and wood charcoal as carbon sources. The nitrogen-doped carbon materials synthesized from black liquor and its mixture with wood charcoal exhibited high specific surface areas and a high volume of mesopores. The nitrogen content in the synthesized materials was approximately 3-4 at%. These materials showed a specific capacitance of approximately 81-142 F g(-1) in a 1 M Na2SO4 aqueous solution at a current density of 0.2 A g(-1), with a specific capacitance retention of 99% after 1000 cycles, indicating good electrochemical stability.
Editorial Material
Crystallography
Aleksej Zarkov, Aivaras Kareiva, Loreta Tamasauskaite-Tamasiunaite
Article
Materials Science, Multidisciplinary
Ramunas Levinas, Natalia Tsyntsaru, Henrikas Cesiulis, Roman Viter, Karlis Grundsteins, Loreta Tamasauskaite-Tamasiunaite, Eugenijus Norkus
Summary: Photo-/electrochemical water splitting is a suitable method for producing green hydrogen and oxygen using renewable energy or direct sunlight. In this study, WO3/MoSx heterostructured materials were synthesized by plasma electrolytic oxidation (PEO), and their activities for photoelectrochemical (PEC) and hydrogen evolution reaction (HER) water splitting were evaluated.
Article
Materials Science, Multidisciplinary
Sukomol Barua, Aldona Balciunaite, Jurate Vaiicuniene, Loreta Tamasauskaite-Tamasiunaite, Eugenijus Norkus
Summary: In this study, 3D nickel-manganese (NiMn) bimetallic coatings were used as electrocatalysts for hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) in alkaline and acidic media. The NiMn coatings exhibited excellent HER activity in alkaline media with a low overpotential of 127.1 mV and exceptional OER activity in acidic media with a minimum overpotential of 356.3 mV. The electrocatalysts also showed good long-term stability and increased current densities with an increase in temperature.
Article
Chemistry, Physical
Antanas Nacys, Dijana Simkunaite, Aldona Balciunaite, Ausrine Zabielaite, Daina Upskuviene, Ramunas Levinas, Vitalija Jasulaitiene, Vitalij Kovalevskij, Birute Simkunaite-Stanyniene, Loreta Tamasauskaite-Tamasiunaite, Eugenijus Norkus
Summary: A Pt-coated Ni layer supported on a Ni foam catalyst (PtNi/Nifoam) was investigated for the electro-oxidation of formic acid (FA) in acidic media. The PtNi/Nifoam catalyst showed approximately 10 times higher catalytic activity compared to bare Pt, especially at low FA concentrations. This enhancement can be attributed to the large surface area provided by Ni foams and the synergistic effects between Pt nanoparticles and Ni-oxy species on the Ni foam surface.
Article
Chemistry, Physical
Ausrine Zabielaite, Aldona Balciunaite, Daina Upskuviene, Dijana Simkunaite, Ramunas Levinas, Gediminas Niaura, Jurate Vaiciuniene, Vitalija Jasulaitiene, Loreta Tamasauskaite-Tamasiunaite, Eugenijus Norkus
Summary: This study focuses on the fabrication and characterization of cobalt particles deposited on graphitic carbon nitride (Co/gCN) for use in hydrogen and oxygen evolution reactions. The modified gCN composites show enhanced electrocatalytic activity compared to metal-free gCN. The thermal annealing process results in the preparation of an effective bifunctional Co3O4/gCN catalyst for both HER and OER.
Article
Chemistry, Physical
Galina Dobele, Ance Plavniece, Aleksandrs Volperts, Aivars Zhurinsh, Daina Upskuviene, Aldona Balciunaite, Vitalija Jasulaitiene, Gediminas Niaura, Martynas Talaikis, Loreta Tamasauskaite-Tamasiunaite, Eugenijus Norkus, Jannicke Kvello, Luis Cesar Colmenares-Rausseo
Summary: Nitrogen-doped activated carbons with controlled micro- and mesoporosity were obtained from wood and wastes via chemical processing and evaluated as oxygen reduction catalysts for fuel cells. The catalyst materials' composition, structure, porosity, and nitrogen bonds were studied. The results showed that increasing the volume of mesopores in the carbon catalyst's porous structure promoted more efficient diffusion of reagents and reactions, and the obtained carbon materials were competitive with Pt/C for oxygen reduction catalysis.
Article
Crystallography
Ausrine Zabielaite, Olegas Eicher-Lorka, Zenonas Kuodis, Ramunas Levinas, Dijana Simkunaite, Loreta Tamasauskaite-Tamasiunaite, Eugenijus Norkus
Summary: This study successfully synthesized g-C3N4 and nanostructures of silver nanocubes with cobalt ferrite, and tested their catalytic activity for hydrogen and oxygen evolution reactions. It was found that Ag@CoFe2O4/g-C3N4 exhibited the highest catalytic activity and the lowest overpotential for HER, making it a promising candidate for practical applications.
Article
Materials Science, Multidisciplinary
Zita Sukackiene, Gitana Valeckyte, Virginija Kepeniene, Irena Stalnioniene, Vitalija Jasulaitiene, Jurate Vaiciuniene, Loreta Tamasauskaite-Tamasiunaite, Giedrius Stalnionis, Eugenijus Norkus
Summary: In this paper, the generation of hydrogen from alkaline sodium borohydride solution by hydrolysis is studied. The study focuses on obtaining efficient catalysts for hydrogen generation by depositing Ni, Mn, Mo, and Co metals on the Cu surface, using morpholine borane as a reducing agent. The prepared catalysts showed high catalytic activity, with the NiCoMoMn/Cu catalyst achieving the lowest activation energy and the highest hydrogen generation rate.
Article
Electrochemistry
Zita Sukackien, Aldona Balciunaite, Virginija Kepenien, Jurate Vaiciunien, Giedrius Stalnionis, Vidas Pakstas, Loreta Tamasauskaite-Tamasiunait, Eugenijus Norkus
Summary: In this study, different types of cobalt-based coatings were investigated as catalysts for hydrogen and oxygen evolution reactions. The Co-Fe-Mo coating showed the lowest overpotential for both HER and OER among all the coatings studied. Moreover, an increase in temperature from 25 degrees C to 55 degrees C led to an increase in current density values for both HER and OER when using the prepared binary or ternary cobalt coatings. Finally, the Co-Fe coating demonstrated the highest mass electrocatalytic activity for both HER and OER at 25 degrees C.
Article
Chemistry, Multidisciplinary
Kristina Radinovic, Jadranka Milikic, Aldona Balciunaite, Zita Sukackiene, Marko Boskovic, Loreta Tamasauskaite-Tamasiunaite, Biljana Sljukic
Summary: Six CoAu electrodes were prepared using different gold-containing solutions and deposition times. The electrodes were characterized and their potential applications in environmental sensing and fuel cells were assessed. The results showed that the prepared CoAu electrode exhibited excellent performance in detecting arsenic and as an anode in fuel cells, achieving high peak power density.
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)
