Electrochemistry Communications最新文献_第6页

Eco-friendly hydrothermal synthesis of Co3O4-based NiO–Fe2O3 binary and ternary nanocomposites for electrochemical energy storage applications 生态友好型水热合成co3o4基NiO-Fe2O3二元和三元纳米复合材料的电化学储能应用

IF 4.2 3区工程技术 Q2 ELECTROCHEMISTRY

Electrochemistry Communications

Pub Date : 2025-08-19 DOI: 10.1016/j.elecom.2025.108035

Khalid Saifullah , Kamran Ullah , Najmul Hassan , Tayyaba Shireen , Salah Knani , Vineet Tirth , Ali Algahtani , Abid Zaman

The increasing global demand for advanced energy storage technologies necessitates the development of high-performance materials. In this study, Co₃O₄-based NiO-Fe₂O₃ binary and ternary nanocomposites were synthesized via a green hydrothermal method using banana peel extract as a sustainable reducing agent. The Phase analysis, microstructural, elemental composition, electrochemical, and magnetic properties of synthesized materials were analyzed using X-ray diffractions (XRD), scanning electron microscope (SEM), energy dispersive x-rays (EDX), cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), linear sweep voltammetry (LSV), and vibrating sample magnetometry (VSM) technique. XRD analysis confirmed the coexistence of binary (NiO-Co₃O₄) and ternary Fe₂O₃-NiO-Co₃O₄ phases in the nanocomposite. The surface morphology analysis showed the presence of spherical and round-like shape. Electrochemical analysis revealed a high specific capacity of 2692 mAh g⁻¹ for the Fe₂O₃-NiO-Co₃O₄ nanocomposite, significantly surpassing the binary compound. The corresponding energy densities were 391.2, 363.2, 328.2 J/mA.cm⁻², with Tafel slopes of 112, 129, and 118 mV/dec, respectively. The VSM results indicated retentivity values of 1.49, 2.53, and 1.03 emu/g for NiO/Co₃O₄, Fe₂O₃/Co₃O₄, and Fe₂O₃/NiO/Co₃O₄ nanocomposite. The energy dispersive x-rays (EDX) spectroscopy confirmed the presence of Co, O, Fe, and Ni elements. These findings highlight the potential of Co₃O₄-based NiO/Fe₂O₃ nanocomposites as promising candidates for high performance energy and data storage applications.

全球对先进储能技术日益增长的需求要求高性能材料的发展。本研究以香蕉皮提取物为可持续还原剂，采用绿色水热法制备了co3o4基NiO-Fe2O3二、三元纳米复合材料。采用x射线衍射（XRD）、扫描电镜（SEM）、能量色散x射线（EDX）、循环伏安法（CV）、电化学阻抗谱（EIS）、线性扫描伏安法（LSV）和振动样品磁强计（VSM）技术对合成材料的物相分析、微观结构、元素组成、电化学和磁性能进行了分析。XRD分析证实了复合材料中存在二元（NiO-Co3O4）相和三元Fe2O3-NiO-Co3O4相。表面形貌分析显示为球形和圆形。电化学分析表明，Fe2O3-NiO-Co3O4纳米复合材料的比容量高达2692 mAh g−1，明显优于二元化合物。对应的能量密度分别为391.2、363.2、328.2 J/mA。cm−2，塔菲尔斜率分别为112、129和118 mV/dec。VSM结果表明，NiO/Co3O4、Fe2O3/Co3O4和Fe2O3/NiO/Co3O4纳米复合材料的保留率分别为1.49、2.53和1.03 emu/g。能量色散x射线（EDX）光谱证实了Co， O， Fe和Ni元素的存在。这些发现突出了基于co3o4的NiO/Fe2O3纳米复合材料作为高性能能源和数据存储应用的有希望的候选者的潜力。

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引用次数: 0

Seven-parameter PEMFC model optimization using an battlefield optimization algorithm 基于战场优化算法的七参数PEMFC模型优化

IF 4.2 3区工程技术 Q2 ELECTROCHEMISTRY

Electrochemistry Communications

Pub Date : 2025-08-16 DOI: 10.1016/j.elecom.2025.108033

Manish Kumar Singla , S.A. Muhammed Ali , Jyoti Gupta , Pradeep Jangir , Arpita , Ramesh Kumar , Reena Jangid , Mohammad Khishe

Precise modeling of Proton Exchange Membrane Fuel Cells (PEMFCs) requires accurate identification of key parameters, which are often unavailable from manufacturers but crucial for predicting fuel cell performance. The system relies on seven key parameters to determine activation and ohmic and concentration overpotential values through ξ1, ξ2, ξ3, ξ4, λ, Rc, and β. The Battlefield Optimization Algorithm (BfOA) represents a new optimization method that finds these seven essential PEMFC parameters effectively. Using Sum Squared Error (SSE) to minimize the difference between estimated and actual cell voltages, BfOA outperformed other optimization algorithms in determining parameters for six PEMFC models under varying operating conditions. The optimized parameters enabled accurate prediction of I-V and PV curves, closely matching experimental data. BfOA's efficiency and robustness make it well-.

suited for real-time fuel cell modeling. Its effectiveness as a method for precise PEMFC device analysis within electronic component simulators is demonstrated. Future development will explore BfOA's compatibility with other fuel cell technologies, incorporate real-time data capabilities, and implement the algorithm in embedded systems for real-time PEMFC monitoring and control.

质子交换膜燃料电池（pemfc）的精确建模需要准确识别关键参数，这些参数通常无法从制造商那里获得，但对于预测燃料电池的性能至关重要。系统依靠七个关键参数通过ξ1、ξ2、ξ3、ξ4、λ、Rc和β来确定活化、欧姆和浓度过电位值。战场优化算法（BfOA）代表了一种新的优化方法，可以有效地找到这七个基本的PEMFC参数。BfOA使用和平方误差（SSE）来最小化估计电压与实际电池电压之间的差异，在确定六种PEMFC模型在不同工作条件下的参数方面优于其他优化算法。优化后的参数能够准确预测I-V和PV曲线，与实验数据吻合较好。BfOA的有效性和鲁棒性使其具有良好的应用前景。适合实时燃料电池建模。证明了该方法作为电子元件模拟器中PEMFC器件精确分析方法的有效性。未来的发展将探索BfOA与其他燃料电池技术的兼容性，整合实时数据功能，并在嵌入式系统中实现实时PEMFC监控算法。

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引用次数: 0

Activity and stability proxies for automated evaluation of IrOx electrocatalysts under variable operating conditions 可变操作条件下IrOx电催化剂的活性和稳定性自动评价代理

IF 4.2 3区工程技术 Q2 ELECTROCHEMISTRY

Electrochemistry Communications

Pub Date : 2025-08-14 DOI: 10.1016/j.elecom.2025.108034

Guanqi Huang , Carlota Bozal-Ginesta , Alán Aspuru-Guzik

To accelerate the screening of electrocatalyst materials, it is necessary to enhance the efficiency of their performance evaluation and optimization under dynamic conditions. The activity and stability of electrocatalyst materials are two crucial metrics that are typically correlated, and thus need to be evaluated in parallel. However. assessing both activity and stability in a time-efficient, reliable and comparable manner remains a challenge. Given the rising interest in evaluating electrocatalysts under realistic fluctuating conditions, we propose an electrochemical approach that uses random sampling and Bayesian optimization to explore pulsed amperometry conditions in hydrous iridium oxides for the oxygen evolution reaction. This method provides activity and stability proxies independent of sample loading which are validated against literature data.

为了加快电催化剂材料的筛选，有必要提高动态条件下电催化剂材料性能评价和优化的效率。电催化剂材料的活性和稳定性是两个重要的指标，通常是相关的，因此需要并行评估。然而。以高效、可靠和可比较的方式评估活动性和稳定性仍然是一项挑战。鉴于在实际波动条件下评估电催化剂的兴趣日益增加，我们提出了一种电化学方法，使用随机采样和贝叶斯优化来探索含水氧化铱中析氧反应的脉冲安培条件。该方法提供了独立于样本加载的活性和稳定性代理，并根据文献数据进行了验证。

引用次数: 0

Homogeneous electrochemical detection of carcinoembryonic antigen based on target-controlled catalytical reaction of platinum/UiO-66 MOFs nanozyme integrated with aptamer 基于铂/UiO-66纳米酶与适体整合的靶控催化反应的癌胚抗原均相电化学检测

IF 4.2 3区工程技术 Q2 ELECTROCHEMISTRY

Electrochemistry Communications

Pub Date : 2025-08-12 DOI: 10.1016/j.elecom.2025.108025

Jie Zhang , Yuanying Shi , Liming Liu , Bin Qiu , Yue Tian , Guodong Guo

In this work, a novel homogeneous electrochemical (HEC) sensing strategy was developed for carcinoembryonic antigen (CEA) detection, addressing limitations of traditional electrochemical platforms that necessitate complex electrode modifications and receptor immobilization protocols. This approach integrates platinum nanoparticle-loaded UiO-66 metal-organic frameworks (Pt/UiO) as an oxidase-like nanozyme with CEA-specific aptamer (Apt) as recognition element, establishing a target-responsive catalytic mechanism. In solution-phase operation, the Pt/UiO nanozyme facilitates the oxidation of 1,2-diaminobenzene into electroactive diaminophenazine (DAP), generating measurable reduction current at unmodified electrode. Apt adsorption onto Pt/UiO surfaces effectively inhibits this enzymatic activity through steric hindrance, resulting in current suppression proportional to Apt coverage. The presence of CEA induces specific Apt-CEA binding, resulting Apt away from the nanozyme surface and restoring catalytic activity in a concentration-dependent manner. Optimization of experimental parameters (e.g., nanozyme concentration, incubation time) enabled the sensor to achieve a detection limit of 3 pg mL⁻¹ with a linear range spanning 0.01–11 ng mL⁻¹, demonstrating potential for point-of-care applications in tumor biomarker analysis.

在这项工作中，开发了一种用于癌胚抗原（CEA）检测的新型均相电化学（HEC）传感策略，解决了传统电化学平台需要复杂电极修饰和受体固定方案的局限性。该方法将负载铂纳米粒子的UiO-66金属有机框架（Pt/UiO）作为类氧化酶纳米酶，以cea特异性适配体（Apt）作为识别元件，建立靶响应催化机制。在液相操作中，Pt/UiO纳米酶促进1,2-二氨基苯氧化成电活性二氨基苯（DAP），在未修饰的电极上产生可测量的还原电流。Apt在Pt/UiO表面的吸附通过位阻有效地抑制了这种酶的活性，导致电流抑制与Apt覆盖成正比。CEA的存在诱导特异性的Apt-CEA结合，导致Apt远离纳米酶表面，并以浓度依赖的方式恢复催化活性。优化实验参数（例如，纳米酶浓度，孵育时间）使传感器达到3 pg mL - 1的检测限，线性范围为0.01-11 ng mL - 1，显示了在肿瘤生物标志物分析中的即时应用潜力。

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引用次数: 0

Electrodeposition of CuNiS as battery type electrode for supercapacitor applications 应用于超级电容器电池型电极的CuNiS电沉积研究

IF 4.2 3区工程技术 Q2 ELECTROCHEMISTRY

Electrochemistry Communications

Pub Date : 2025-08-11 DOI: 10.1016/j.elecom.2025.108024

Davut Uzun, Ahsen Albaş, Seyfullah Madakbaş, Ece Kök Yetimoğlu

This study focuses on the high-performance, binder-free electrodes on nickel foam by simple cathodic electrodeposition using nickel chloride, copper sulfate, and thiourea solution as aqueous electrolytes. The CuS, NiS, and NiCuS electrodes synthesized by cathodic electrodeposition were characterized by X-ray diffraction, energy dispersive spectra, and scanning electron microscopy. The electrochemical performance of the synthesized positive electrodes was investigated in aqueous potassium hydroxide electrolyte by widespread electroanalytical techniques such as cyclic voltammetry, electrochemical impedance spectroscopy, and galvanostatic charge-discharge. The electrochemical tests revealed that the synthesized electrode materials exhibited significant reversible redox reactions. Among the produced electrodes, CuNiS exhibited high specific capacitance (1026.9 F g⁻¹ at 5 mV s⁻¹; 1338.5 F g⁻¹ at 1 A g⁻¹ current density). The produced NiCuS//activated carbon supercapacitor achieved 890 W kg⁻¹ power and 14.9 Wh kg⁻¹ energy density in the potential range from 0 to 1.40 V. The asymmetric supercapacitor reached 157.8 % of the initial discharge capacity at the end of 5000 charge-discharge cycles. The results of this study indicate that the electrodes produced by the cathodic electrochemical deposition method have excellent potential for use as positive electrodes in supercapacitor applications.

本研究以氯化镍、硫酸铜和硫脲溶液为水溶液，采用简单的阴极电沉积方法在泡沫镍上制备高性能无粘结剂电极。采用x射线衍射、能谱和扫描电镜对阴极电沉积法制备的cu、NiS和NiCuS电极进行了表征。利用循环伏安法、电化学阻抗谱、恒流充放电等广泛应用的电分析技术，研究了合成的正极在氢氧化钾水溶液中的电化学性能。电化学测试表明，合成的电极材料表现出明显的可逆氧化还原反应。在所制备的电极中，CuNiS具有较高的比电容（在5 mV s−1时为1026.9 F g−1）；1338.5 F g−1在1a g−1电流密度)。在0 ~ 1.40 V电势范围内，NiCuS//活性炭超级电容器的功率为890 W kg−1，能量密度为14.9 Wh kg−1。在5000次充放电循环结束时，非对称超级电容器达到初始放电容量的157.8%。研究结果表明，用阴极电化学沉积法制备的电极在超级电容器中具有良好的正极应用潜力。

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引用次数: 0

Corrigendum to “Probe – Integrated electrochemical sensing platform for detection of trace levels of Dapoxetine hydrochloride drug residue in water and drug formulations” [Electrochem. Commun. 173 (2025) 107875] “用于检测水和药物制剂中盐酸达泊西汀药物残留量的探针集成电化学传感平台”的勘误表[电化学]。common . 173 (2025) 107875]

IF 4.2 3区工程技术 Q2 ELECTROCHEMISTRY

Electrochemistry Communications

Pub Date : 2025-08-09 DOI: 10.1016/j.elecom.2025.108020

H. Alwael , N.A. Asiri , B.G. Alhogbi , A.S. Alharthi , E.A. Bahaidarah , T.N. Abduljabbar , D.F. Baamer , M. Madkour , Faten M. Ali Zainy , M.S. El-Shahawi

引用次数: 0

Reduced gas diffusion resistance via modification of negatrode morphology for steam/CO2 co-electrolysis SOEC 通过改变负极形态来降低蒸汽/二氧化碳共电解SOEC的气体扩散阻力

IF 4.2 3区工程技术 Q2 ELECTROCHEMISTRY

Electrochemistry Communications

Pub Date : 2025-08-06 DOI: 10.1016/j.elecom.2025.108022

Hirofumi Sumi , Mizuki Momai , Yohei Tanaka , Toshiaki Matsui

Solid oxide electrolysis cells (SOECs) exhibit remarkable efficiency in the production of syngas, a mixture of hydrogen and carbon monoxide, owing to their ability to electrolyze steam and carbon dioxide simultaneously. However, the polarization resistance associated with the gas diffusion process in the negatrode (fuel electrode) increases with increasing CO₂ concentrations during steam/CO₂ co-electrolysis. To reduce the gas diffusion resistance in negatrode-supported microtubular SOECs, acrylic resin and graphite are employed as pore formers in the negatrode. Replacing acrylic resin with graphite pore formers enhances the current density from 0.477 to 0.544 A cm⁻² at H₂O/CO₂ = 2 and 700 °C owing to 22 % reduction in the polarization resistance associated with the gas diffusion process at low frequencies below 10 Hz. Focused ion beam-scanning electron microscopy analysis reveals that the fraction of small-pores (less than 2 μm in diameter) is higher in the cell employing the graphite pore former, which helps decrease the polarization resistance associated with the gas diffusion process in the negatrode. Thus, optimizing the negatrode microstructure is crucial to enhancing the performance of co-electrolysis SOECs.

固体氧化物电解电池（SOECs）在生产合成气（氢和一氧化碳的混合物）方面表现出显著的效率，因为它们能够同时电解蒸汽和二氧化碳。然而，在蒸汽/二氧化碳共电解过程中，负极（燃料电极）中与气体扩散过程相关的极化电阻随着CO2浓度的增加而增加。为了降低负极微管soec中的气体扩散阻力，在负极中使用丙烯酸树脂和石墨作为成孔剂。在H2O/CO2 = 2和700°C的条件下，石墨成孔材料的电流密度从0.477 A cm−2提高到0.544 A cm−2，这是由于在低于10 Hz的低频下，气体扩散过程中产生的极化电阻降低了22%。聚焦离子束扫描电镜分析表明，石墨成孔器的微孔（直径小于2 μm）比例较高，有利于降低负极中气体扩散过程的极化阻力。因此，优化负极结构对提高共电解soec的性能至关重要。

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引用次数: 0

Tubular electrochemical reactors for the biphasic oxidation of HMF to FDCA 两相氧化HMF制FDCA的管状电化学反应器

IF 4.2 3区工程技术 Q2 ELECTROCHEMISTRY

Electrochemistry Communications

Pub Date : 2025-08-05 DOI: 10.1016/j.elecom.2025.108018

Tobias Harhues , Wenzel Plischka , Matthias Wessling , Robert Keller

Tubular reactors offer increased surface-to-volume ratios compared to conventional planar reactors. Yet, they are seldom utilized in electrochemical applications. This is primarily due to the challenges associated with membrane placement and the lack of concepts for cell-stacking and integrating mixer elements in such designs. This study introduces two innovative tubular reactor designs which address these limitations, while the biphasic electrooxidation of hydroxymethylfurfural (HMF) to 2,5-furandicarboxylic acid (FDCA) serves as case study: the Mixer Electrode Reactor (MER) and the Swiss-roll Reactor (SRR). The MER leverages a tubular 3D-printed stainless steel or nickel foam electrode to enhance mass transfer and active electrode area within the flow cell. The SRR, similar to spiral-wound membrane modules, employs a rolled-up assembly of nickel foam electrodes separated by polymeric spacers. In testing, the MER exhibited low FDCA yields (

<

60%) due to an inhomogeneous electric field caused by non-uniform electrode spacing. In contrast, the SRR maintained a uniform electrode distance, resulting in a homogeneous electric field significantly improving performance. The SRR achieved higher FDCA yields (up to 73% at 15 mA cm⁻²) and significantly increased space–time yields (437 mol_FDCA m⁻³ h⁻¹), surpassing both the MER and conventional planar reactor designs. This work highlights the potential of the SRR as an efficient and scalable tubular reactor, particularly for the integrated biphasic oxidation of HMF to FDCA.

与传统的平面反应器相比，管式反应器提供了更高的表面体积比。然而，它们很少用于电化学应用。这主要是由于与膜放置相关的挑战，以及在这种设计中缺乏细胞堆叠和集成混合器元素的概念。本研究介绍了两种创新的管式反应器设计，以解决这些限制，而两相电氧化羟甲基糠醛（HMF）到2,5-呋喃二羧酸（FDCA）作为案例研究：混合电极反应器（MER）和瑞士卷反应器（SRR）。MER利用管状3d打印不锈钢或镍泡沫电极来增强流体池内的传质和活性电极面积。SRR，类似于螺旋缠绕膜模块，采用由聚合物垫片分隔的镍泡沫电极的卷起来的组件。在测试中，由于非均匀电极间距引起的不均匀电场，MER表现出较低的FDCA产率（<60%）。相比之下，SRR保持了均匀的电极距离，导致均匀的电场显著提高了性能。SRR获得了更高的FDCA产率（在15 mA cm−2时高达73%），并且显著提高了时空产率（437 molFDCA m−3 h−1），超过了MER和传统的平面反应器设计。这项工作突出了SRR作为一种高效和可扩展的管式反应器的潜力，特别是对于HMF到FDCA的综合双相氧化。

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引用次数: 0

Electrodeposition of p-type Cu2O on n-type TiO2 nanosheet arrays for enhanced photoelectrochemical water splitting 在n型TiO2纳米片阵列上电沉积p型Cu2O以增强光电化学水分解

IF 4.2 3区工程技术 Q2 ELECTROCHEMISTRY

Electrochemistry Communications

Pub Date : 2025-07-23 DOI: 10.1016/j.elecom.2025.108009

Lin Wang , Hai Yu , YaXin Wang , Chun Miao , QianQian Lei , XinPing Yao , XiaoChen Yao , Xin Wei , JianGuo Lv , Yan Xue , JingWen Zhang , SiWen Zhou , DanDan Qu

This study synthesized p-type Cu₂O using an electrodeposition method and firmly attached it to TiO₂ nanosheets based on fluorine-doped tin oxide (FTO) substrates, forming a dense film that serves directly as a photoanode for photoelectrochemical (PEC) water splitting. Characterization techniques such as XRD, SEM, XPS, and UV–Vis confirmed the successful deposition of Cu₂O on the TiO₂ nanosheets, forming a p-n heterojunction structure. The incorporation of Cu₂O effectively broadened the light absorption range of TiO₂, with a cut-off wavelength red-shifting to 537 nm, enabling it to absorb more visible light. Photoelectrochemical tests showed that under illuminated unbiased conditions, the photocurrent density of Cu₂O-TiO₂ reached 0.3 mA/cm², which is 7.5 times that of TiO₂. After applying a small bias (0.5 V), the photocurrent density further increased to 2.1 mA/cm², 5.2 times that under unbiased conditions, indicating that the introduction of electricity effectively accelerated the separation efficiency of photo-generated carriers. The Cu₂O-TiO₂ heterojunction exhibited significantly higher photocurrent density (measured by LSV) and charge transfer efficiency (evaluated by EIS) than pure TiO₂. This research provides new insights for PEC water splitting technology and serves as a reference for designing high-performance photocatalysts.

本研究采用电沉积法合成p型Cu2O，并将其牢固附着在基于氟掺杂氧化锡（FTO）衬底的TiO2纳米片上，形成致密膜，直接作为光电化学（PEC）水分解的光阳极。XRD、SEM、XPS、UV-Vis等表征技术证实了Cu2O在TiO2纳米片上的成功沉积，形成了p-n异质结结构。Cu2O的加入有效地拓宽了TiO2的光吸收范围，截止波长红移至537 nm，使其能够吸收更多的可见光。光电化学测试表明，在光照无偏条件下，cu20 -TiO2的光电流密度达到0.3 mA/cm2，是TiO2的7.5倍。在施加小偏置（0.5 V）后，光电流密度进一步增加到2.1 mA/cm2，是无偏置条件下的5.2倍，表明电的引入有效地加快了光生载流子的分离效率。Cu 2 -TiO 2异质结的光电流密度（用LSV测量）和电荷转移效率（用EIS评估）明显高于纯TiO 2。本研究为PEC水分解技术的发展提供了新的思路，为设计高性能光催化剂提供了参考。

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引用次数: 0

Two-dimensional W2C cathodes for fluoride-ion batteries: Achieving fast ion transport via vacancy induction 氟离子电池的二维W2C阴极：通过空位感应实现快速离子传输

IF 4.2 3区工程技术 Q2 ELECTROCHEMISTRY

Electrochemistry Communications

Pub Date : 2025-07-23 DOI: 10.1016/j.elecom.2025.108007

Chuang Wang , Lidong You , Tingting Sun , Zichun Zhang

The two-dimensional W₂C sparked widespread interest due to high physicochemical stability and large specific surface area. Fluoride-ion batteries (FIBs) are promising candidates in energy storage applications due to excellent properties such as high energy density. Despite such potential, the role of these materials in FIBs needs elucidation, especially regarding the effect of the fluoride ion transport mechanism on the material surface. In this study, the suitability of W₂C as a cathode material for FIB was evaluated for the first time using the vacancy induction method based on first-principles calculations. The results show that the diffusion barrier for fluoride ions on the W₂C surface is drastically reduced from 0.26 eV to 0.11 eV, and the ion transport efficiency is more than doubled, while a high theoretical voltage of 4.32 V and stable cycling at a concentration of 0–175 % F⁻ are achieved. This is attributed to the fact that vacancy defects reduce the binding affinity of tungsten to fluoride ions and promote desorption of fluoride ions. This study highlights the importance of vacancy-induced techniques in enhancing 2D materials' ion transport capacity, providing valuable insights for advancing high-performance FIB designs.

二维W2C由于其高的物理化学稳定性和大的比表面积而引起了广泛的兴趣。氟离子电池由于具有高能量密度等优异性能，在储能领域具有广阔的应用前景。尽管有这样的潜力，这些材料在fib中的作用需要阐明，特别是关于氟离子在材料表面传输机制的影响。本研究首次采用基于第一性原理计算的空位感应法对W2C作为FIB正极材料的适用性进行了评价。结果表明，氟离子在W2C表面的扩散势垒从0.26 eV大幅降低到0.11 eV，离子输运效率提高了一倍以上，同时实现了4.32 V的高理论电压和0 ~ 175% F−浓度下的稳定循环。这是由于空位缺陷降低了钨对氟离子的结合亲和力，促进了氟离子的解吸。该研究强调了空位诱导技术在增强二维材料离子传输能力方面的重要性，为推进高性能FIB设计提供了有价值的见解。

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引用次数: 0