Ionics最新文献

{"title":"Eco-inspired synthesis of ZnO/CuO nanocomposites using Phyllanthus niruri: unveiling superior photocatalytic, antibacterial efficacy against Escherichia coli and Staphylococcus aureus, and latent fingerprint studies","authors":"K. S. Mamatha, H. M. Suresh Kumar, T. D. Puttaraju, T. L. Soundarya, G. Nagaraju","doi":"10.1007/s11581-024-05823-8","DOIUrl":"https://doi.org/10.1007/s11581-024-05823-8","url":null,"abstract":"<p>The current study focuses on the facile green synthesis of ZnO/CuO nanocomposites (NCs) mediated by <i>Phyllanthus niruri</i> leaf extract as a capping agent and fuel. The characterization of the synthesized NCs in comparison with the pure ZnO and CuO NPs was conducted using XRD, FT-IR, SEM-EDAX, HR-TEM, UV–Vis DRS, and PL studies. XRD analysis revealed their crystalline nature with an average crystallite size of 25 nm. SEM images showed particle agglomeration, and EDAX confirmed the elemental composition of the pure phase. HR-TEM images elucidated the presence of spherical and hexagonal shapes. The presence of bond vibrations such as Zn − O and Cu − O was confirmed by FT-IR analysis. The optical energy bandgaps were determined to be 3.27, 2.8, and 2.7 eV for ZnO, CuO NPs, and ZnO/CuO NCs respectively. PL studies of the synthesized NCs showed a blue emission with a peak position at 493 nm. The photocatalytic activity of ZnO/CuO NCs exhibited a degradation efficiency of 97.93% against methylene blue dye and 53% towards the Rose Bengal dye. Furthermore, the investigation of antibacterial activity by 96-well microtiter plate method against two bacterial strains, <i>Escherichia coli and Staphylococcus aureus</i>, revealed significant zones of inhibition, and when compared to the common antibiotic ciprofloxacin, the MIC values were 3.90 µg/mL for both <i>Staphylococcus aureus</i> and <i>Escherichia coli</i>, while the MBC values were 2.05 µg/mL for <i>Staphylococcus aureus</i> and 2.19 µg/mL for <i>Escherichia coli</i>. The prepared materials were additionally tested for latent fingerprint activity. The NCs displayed excellent properties, producing visible, clear images of latent fingerprints. Thus, the ZnO/CuO nanocomposites (NCs) synthesized using <i>Phyllanthus niruri</i> leaf extract could be a desirable catalyst for wastewater treatment and a potent antimicrobial agent against the bacteria and can be used for latent fingerprint applications.</p><h3 data-test=\"abstract-sub-heading\">Graphical Abstract</h3>\u0000","PeriodicalId":599,"journal":{"name":"Ionics","volume":null,"pages":null},"PeriodicalIF":2.8,"publicationDate":"2024-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142250929","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Investigation of Sr doping effect on oxygen ion de-localization in Gd2Ti2O7 pyrochlore system and its influence on charge relaxation dynamics and ionic conductivity: as electrolyte for IT-SOFCs","authors":"Arshiya A. A. Ali, Smita Acharya, Kuldip Bhongale, Shraddha Shirbhate, Shilpa Kulkarni, Shraddha Joshi","doi":"10.1007/s11581-024-05784-y","DOIUrl":"https://doi.org/10.1007/s11581-024-05784-y","url":null,"abstract":"<p>In the present attempt, we explore Gd_2-xSr_xTi₂O₇, pyrochlore system, where <i>x</i> = 0, 0.02 and 0.04, 0.06, 0.08 and 0.1 as an electrolyte for intermediate temperature (500–650 °C) solid oxide fuel cell (IT-SOFCs). Structural information is collected using X-ray diffraction and confirmed by Rietveld Refinement as an anion-deficient pyrochlore phase with Fd-3 m symmetry. Microstructural features of as-calcined and sintered samples are studied by using scanning electron microscopy (SEM); Sr existence in the GTO matrix is verified by the EDAX study. Raman spectroscopy study reveals (1) the suppression of F_2g near 481 cm⁻¹ associated with Gd-O(1) stretching vibration with increasing Sr²⁺ doping level and (2) the disappearance of F_2g modes near 610 cm⁻¹ associated with Gd-O(2) stretching vibration with the emergence of new vibration modes near 796 cm⁻¹ in GSTO compositions having <i>x</i> ≥ 4 related to the de-localization of oxygen ion from <i>48f</i> to vacant <i>8a</i> site. Ionic conductivity and activation energy data are extracted through AC impedance measurement, and conductivity maximum is obtained for composition GSTO-4. The electric modulus study is explored to reveal ion hopping dynamics. Sr doping in GTO exhibits dispersion in oxygen-ion relaxation frequency. To quantify the relaxation mechanism, <i>M</i>″ relaxation peak and its dispersion are mapped using the Kohlrausch–Williams–Watts (KWW) fit; the stretching exponent “β” is extracted. Cooperative hopping dynamics is measured in terms of oxygen ion-vacancy interactions which is notably influenced on ionic conductivity. The optimized dopant composition of GSTO-4 exhibits the highest conductivity (<i>σ</i> = 4.3 × 10⁻³ S/cm@650 °C). Button-shape SOFCs are fabricated using GTO and GSTO-4 as electrolytes and NiO-GSTO-4 as anode and Dy_0.9Sr_0.1Co_0.8Fe_0.2O_3-δ:GSTO-4 as cathode and depict maximum power densities of the cells 41, 33, and 25 mW cm⁻² at 650 °C, 600 °C, and 550 °C, respectively, for the GSTO-4 system. In contrast, the pristine GTO system exhibits power densities of 32, 23, and 19 mW cm⁻² at the same temperatures. The study demonstrates the potential of GSTO-4 as a prospective system for IT-SOFCs.</p>","PeriodicalId":599,"journal":{"name":"Ionics","volume":null,"pages":null},"PeriodicalIF":2.8,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142250934","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Solvent-engineered ZIF-67-derived cobalt-embedded carbon as polysulfide trapping host for high-stability Li–S battery","authors":"Suresh Archana, Perumal Elumalai","doi":"10.1007/s11581-024-05808-7","DOIUrl":"https://doi.org/10.1007/s11581-024-05808-7","url":null,"abstract":"<p>A metal organic framework (MOF)–derived cobalt-embedded nitrogen-doped carbon/sulfur composites (Co-NCS) from ZIF-67 template was generated and tested for lithium-sulfur (Li–S) battery. Solvent-engineered tunable morphology of ZIF-67 and its influences on lithium storage in Li–S battery were examined. A coin-type cell was employed for Li–S system having different Co-NCS composites cathode and lithium metal anode and its electrochemical performances were compared. The dodecahedron-shaped Co-NCS composite synthesized using water solvent (Co-NCS-W) showed superior performance with discharge capacity of 1000 mAh g⁻¹ at 0.02C-rate. This battery showed excellent cycle-life stability for about 500 charge/discharge cycles sustaining a 480 mAh g⁻¹ steady capacity at high C-rate of 0.1C. The superior performance was attributed to structural stability obtained through MOF synthesis route and presence of carbon matrix that served as a conducting network for charge transport as well as providing adequate room for sulfur cathode. The Co-NCS-W composite with Co–N sites leads to improved polysulfide trapping, resulting in excellent cycling stability. A significant amount of capacitive storage along with diffusive Li⁺ storage in all cathode hosts generated resulted in high-rate capability. The cathode demonstrated good capacity and superior rate capability, along with excellent cycle-life stability, making it ideal for high-performing Li–S batteries.</p><h3 data-test=\"abstract-sub-heading\">Graphical abstract</h3>\u0000","PeriodicalId":599,"journal":{"name":"Ionics","volume":null,"pages":null},"PeriodicalIF":2.8,"publicationDate":"2024-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142250931","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Structural, electrical, and electrochemical investigations on Cu2+ ion–conducting PVA/HPMC-based blend solid polymer electrolytes","authors":"Reem Y. Mahmood, Aseel A. Kareem, Anji Reddy Polu, Sun Theo Constan Lotebulo Ndruru","doi":"10.1007/s11581-024-05822-9","DOIUrl":"https://doi.org/10.1007/s11581-024-05822-9","url":null,"abstract":"<p>Blend solid polymer electrolytes (BSPEs) comprising PVA/HPMC/CuSO₄ were prepared using a solution casting approach. BSPEs were synthesized with varying weight percentages of CuSO₄ (0, 10, 20, and 30 wt.%). A variety of experimental methods, including X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM), electrochemical impedance spectroscopy (EIS), cyclic voltammetry (CV), and linear sweep voltammetry (LSV), were used to characterize these BSPE systems. The polymer blend matrix underwent structural alterations, according to the XRD data. The standard data from JCPDS card numbers for copper sulfate matches well with the observed strong peaks of PVA/HPMC+20 wt.% of CuSO₄ BSPE. The complex that formed within the BSPE systems was detected by FTIR, indicating a positive interaction between the salt and the host polymer. The BSPE containing 20 wt.% CuSO₄ exhibited the highest ionic conductivity, reaching 5.11 × 10⁻³ S/cm at room temperature. Electrochemical stability assessments, conducted using cyclic voltammetry and linear sweep voltammetry, revealed a sufficiently wide electrochemical window for the optimized electrolyte system, confirming its suitability for battery applications.</p>","PeriodicalId":599,"journal":{"name":"Ionics","volume":null,"pages":null},"PeriodicalIF":2.8,"publicationDate":"2024-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142250930","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Self-templated sacrificial strategy to construct nanorod array-like Co9S8 for high-performance asymmetric supercapacitors","authors":"Yue Yan, Wenrui Wu, Yang Yang, Tao Xu, Xianfu Li","doi":"10.1007/s11581-024-05821-w","DOIUrl":"https://doi.org/10.1007/s11581-024-05821-w","url":null,"abstract":"<p>As the global demand for energy continues to grow and environmental issues become increasingly severe, the exploration of efficient and sustainable energy storage solutions has become an urgent priority. This research showcases the successful fabrication of uniformly dispersed Co₉S₈ nanorod arrays (designated as Co₉S₈/NF) intimately integrated onto nickel foam (NF) substrates, leveraging an innovative two-step hydrothermal method that incorporates a self-templated sacrificial approach. This methodology ensures the in situ growth of the nanorods, markedly elevating the specific capacity and conferring superior long-term electrochemical stability upon the composite material. The distinctive nanorod morphology not only furnishes an abundance of active sites for charge storage but also facilitates rapid ion diffusion and transport, thereby boosting performance. Consequently, the Co₉S₈/NF electrode demonstrates an impressive specific capacity of 1528.4 C g⁻¹ at 1 A g⁻¹, accompanied by remarkable cycling stability, retaining 81.2% of its initial capacitance after 10,000 cycles. Furthermore, when assembled into an asymmetric supercapacitor (ASC), this system exhibits a commendable energy density of 155.5 Wh kg⁻¹ at a power density of 1600 W kg⁻¹, underscoring its potential for practical applications. Significantly, following a stringent stability assessment encompassing 10,000 cycles, the ASC demonstrates an outstanding retention of current at 91.4%, underscoring the material system’s exceptional endurance and dependability.</p>","PeriodicalId":599,"journal":{"name":"Ionics","volume":null,"pages":null},"PeriodicalIF":2.8,"publicationDate":"2024-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142197931","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhanced stability and electrochemical performance of O3-type NaNi1/3Fe1/3Mn1/3O2 cathode material via yttrium doping for advanced sodium-ion batteries","authors":"Weijia Tang, Yuming Liu, Changlong Lei, Yunjiao Li, Zhenjiang He","doi":"10.1007/s11581-024-05813-w","DOIUrl":"https://doi.org/10.1007/s11581-024-05813-w","url":null,"abstract":"<p>Overcoming rapid capacity decay and structural instability remains a key challenge for the commercialization of O3-type layered cathode materials. This study investigates the effect of yttrium (Y) doping on the performance of NaNi_1/3Fe_1/3Mn_1/3O₂ (NNFMO) cathode material for sodium-ion batteries. Compared to the TM-O bonds in the unmodified material, the Y-doped material has stronger Y–O bonds that form a stable structure. Y doping enhances the reversibility of Ni/Fe redox reactions and mitigates the irreversible P3-O'-P3' phase transition. Electrochemical analysis reveals that the Y-doped cathode material (NNFY-10000) exhibits excellent rate performance and remarkable cycle stability. Specifically, NNFY-10000 maintains a discharge capacity of 110.6 mAhg⁻¹ at a 1 C rate and retains 72.26% of its capacity after 200 cycles, outperforming undoped NNFMO. These improvements are attributed to the stable structure formed by strong Y–O bonds, reduced polarization during the cycling process, and enhanced redox reaction reversibility due to Y doping. This study not only elucidates the mechanism by which Y doping improves the electrochemical performance of NNFMO but also provides valuable insights for the development of high-performance sodium-ion battery cathode materials. The strategic introduction of rare earth elements such as Y offers a promising approach to overcoming the inherent limitations of O3-type layered cathode materials, paving the way for their practical application in energy storage systems.</p>","PeriodicalId":599,"journal":{"name":"Ionics","volume":null,"pages":null},"PeriodicalIF":2.8,"publicationDate":"2024-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142197926","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Designing NiCoS/CNTs composites for highly efficient bifunctional electrocatalyst in water splitting","authors":"Sheraz Yousaf, Safaa N. Abdou, Tabinda Rasheed, Mohamed M. Ibrahim, Imran Shakir, Salah M. El-Bahy, Iqbal Ahmad, Muhammad Shahid, Muhammad Farooq Warsi","doi":"10.1007/s11581-024-05818-5","DOIUrl":"https://doi.org/10.1007/s11581-024-05818-5","url":null,"abstract":"<p>Electrocatalytic water-splitting holds great promise for the large-scale production of hydrogen as a renewable and environmentally friendly alternative to fossil fuels. However, the exploration of a cost-effective, stable, and active bifunctional electrocatalyst remains a significant challenge in achieving efficient hydrogen (H₂)/oxygen (O₂) production through water electrolysis. Herein, we used nickel-doped cobalt sulfide (NiCoS) supported by carbon nanotubes (CNTs) as a promising candidate for electrocatalytic water splitting. The Ni-Co-based catalyst comprising the redox couples of Ni⁺³/Ni⁺² and Co⁺³/Co⁺² exhibits remarkable efficiency as active sites for both HER as well as OER. The linear sweep voltammetry (LSV) results indicate that the fabricated bifunctional catalyst necessitates overpotentials of just 327 mV for achieving a cathodic current density of 100 mAcm⁻² and 344 mV for the anodic current density of the same value. Additionally, the Tafel slopes for the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) are 64 mVdec⁻¹ and 70 mVdec⁻¹, respectively. The electrochemical impedance analysis (EIS) was also performed which revealed that NiCoS/CNTs has the lowest charge transfer resistance (<i>R</i>_ct) which is 1.94 Ω as compared to the CoS (7.52 Ω) and NiCoS (4.74Ω). The ECSA value of the prepared NiCoS/CNTs material was observed as 3.47 cm². Such an excellent synergetic effect is due to the interaction of NiCoS with CNTs, which not only provides highly active sites available for faster charge transfer but also increases the electrical conductivity of the fabricated material. This study offers valuable insights into the design of the best electrocatalysts for water splitting.</p>","PeriodicalId":599,"journal":{"name":"Ionics","volume":null,"pages":null},"PeriodicalIF":2.8,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142197927","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synthesis and characterization of (Gd, Nd) co-doped ceramic materials (Gd0.1NdxCe0.9-xO2-δ x = 0.05, 0.10, 0.15) via polyol method using different hydrolysis ratios","authors":"Tuba Gürkaynak Altınçekiç, Dilara Güçtaş Gürel, Vedat Sarıboğa, M. A. Faruk Öksüzömer, Aliye Arabacı","doi":"10.1007/s11581-024-05810-z","DOIUrl":"https://doi.org/10.1007/s11581-024-05810-z","url":null,"abstract":"<p>Gd_0.1Nd_xCe_0.9-xO_<b>2-</b>δ x = 0.05, 0.10, 0.15 co-doped electrolytes were prepared using the polyol process with the hydrolysis ratio <i>h</i> = 10, 20 and 50. The effects of the metal concentration and hydrolysis ratio on the powders’ purity and the crystallographic properties are examined with XRD. The morphology of the samples was analyzed using scanning electron microscopy (SEM), and the density of the pellets was calculated using the Archimedes method. The SEM images show uniform isotropic morphologies with average grain sizes between 1 and 3 µm. Furthermore, electrochemical impedance spectroscopy was utilized to measure the ionic conductivity properties of the electrolytes. The GNDC5-10 sample exhibited the highest ionic conductivity and relative density of 4.86 × 10⁻² S.cm⁻¹ and 92.7%, respectively, and the lowest activation energy of 0.645 eV.</p>","PeriodicalId":599,"journal":{"name":"Ionics","volume":null,"pages":null},"PeriodicalIF":2.8,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142197930","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A simple and rapid batch injection analysis method with amperometric detection for determination of azithromycin in pharmaceutical tablets","authors":"Lizandra N. Castro, Carlos E. C. Lopes, Domingos R. Santos-Neto, Luiz Ricardo G. Silva, Auro A. Tanaka, Luiza M. F. Dantas, Iranaldo S. da Silva","doi":"10.1007/s11581-024-05790-0","DOIUrl":"https://doi.org/10.1007/s11581-024-05790-0","url":null,"abstract":"<p>Azithromycin (AZI) is a macrolide antibiotic that presents highly bactericidal or bacteriostatic action and is extensively used worldwide. However, in excess it can cause severe side effects, while AZI residues can significantly harm both humans and the environment. In this study, a method was developed for AZI determination using a glassy carbon electrode modified with a suspension of Super P carbon black and Nafion®, together with a fully 3D-printed batch injection analysis (BIA) device. For AZI detection, a potential of + 0.95 V was selected and the optimal BIA parameters were an injection volume of 100 µL and a dispensing rate of 200 µL s⁻¹. The method exhibited a linear range from 1.00 to 150 µmol L⁻¹ and a detection limit of 0.045 µmol L⁻¹. Repeatability and reproducibility tests demonstrated the robustness of the sensor, which could be used for multiple sequential analyses over several days. The developed method was applied to pharmaceutical samples, with the results confirming its viability for analyses of these matrices.</p><h3 data-test=\"abstract-sub-heading\">Graphical Abstract</h3>\u0000","PeriodicalId":599,"journal":{"name":"Ionics","volume":null,"pages":null},"PeriodicalIF":2.8,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142197929","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"N/S dual-doped KB-decorated Na3V2(PO4)2F3 as high-performance cathode for advanced sodium storage properties","authors":"Jia-le Xu, An-Ping Tang, Qing Wen, Jun-chao Zheng, Lin-Bo Tang, Ying-De Huang, He-zhang Chen","doi":"10.1007/s11581-024-05803-y","DOIUrl":"https://doi.org/10.1007/s11581-024-05803-y","url":null,"abstract":"<p>Na₃V₂(PO₄)₂F₃ (NVPF) with sodium superionic conductor NASICON) structure’s quick diffusion channel, high energy density, and high operating voltage make it among the most promising cathode materials for batteries that use sodium ions. But its inadequate inherent electronic conductivity and structural stability hinder its excellent electrochemical performance. In this investigation, N and S co-doped Ketjen Black (NSKB) decorated NVPF cathode material (NVPF@NSKB) was effectively produced using a straightforward sol–gel technique. When NSKB is added, NVPF takes on a loose, porous shape. Improving the conductivity of the material, significantly increasing the contact area between the electrode and the electrolyte, helps the material to perform better electrochemical performance. Compared with the original NVPF@C, NVPF@NSKB shows better charging performance, reaching a capacity of 115.4 mAh g⁻¹ at 0.5 C and 103.3 mAh g⁻¹ at 25 C. The battery also demonstrates excellent cycling stability. After 500 cycles at 30 C, the battery’s capacity remained at 80.7 mAh g⁻¹ with minimal capacity loss. This study demonstrates that N and S co-doped KB is an effective strategy to enhance the performance of sodium-ion battery cathode materials, Na₃V₂(PO₄)₂F₃.</p>","PeriodicalId":599,"journal":{"name":"Ionics","volume":null,"pages":null},"PeriodicalIF":2.8,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142197928","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}