Electrochimica Acta最新文献

L-Pro functionalized carbon nanoclusters inducing an enantioselective voltammetric response to Trp and Tyr

IF 6.6 3区材料科学

Electrochimica Acta Pub Date : 2025-03-06 DOI: 10.1016/j.electacta.2025.145989

Matteo Bonomo, Martina Bortolami, Antonella Curulli, Paola Di Matteo, Marta Feroci, Beatrice Simonis, Alessandro Trani, Fabrizio Vetica, Giuseppe Zollo

引用次数: 0

Advanced machine learning techniques for State-of-Health estimation in lithium-ion batteries: A comparative study

IF 6.6 3区材料科学

Electrochimica Acta Pub Date : 2025-03-06 DOI: 10.1016/j.electacta.2025.145988

Marek Sedlařík, Petr Vyroubal, Dominika Capková, Edin Omerdic, Mitchell Rae, Martin Mačák, Martin Šedina, Tomáš Kazda

{"title":"Advanced machine learning techniques for State-of-Health estimation in lithium-ion batteries: A comparative study","authors":"Marek Sedlařík, Petr Vyroubal, Dominika Capková, Edin Omerdic, Mitchell Rae, Martin Mačák, Martin Šedina, Tomáš Kazda","doi":"10.1016/j.electacta.2025.145988","DOIUrl":"https://doi.org/10.1016/j.electacta.2025.145988","url":null,"abstract":"The accurate modeling and prediction of the State-of-Health (SOH) of lithium-ion (Li-ion) batteries are crucial for extending their lifespan, ensuring reliability, and minimizing the costs associated with extensive laboratory testing. This paper investigates the SOH estimation of Li-ion batteries utilizing advanced machine learning (ML) techniques. Specifically, 600 cycles were performed on Samsung INR18650-35E cells using the Constant Current Constant Voltage (CCCV) protocol. The input data for the ML methods were extracted from both charging and discharging cycles to achieve the best possible results.Data-driven models with different methodological foundations were used to predict SOH: Gaussian Process Regression (GPR), Support Vector Regression (SVR), and from the field of Artificial Neural Networks (ANN), Feed-Forward Neural Network (FFNN) and Adaptive Neuro-Fuzzy Inference System (ANFIS), which utilizes fuzzy logic. The input features for the ML methods were analyzed using Pearson Correlation Analysis (PCA), and additional inputs for the ANFIS method were selected using Exhaustive Search (ES) to identify the optimal combination of inputs with the lowest Root Mean Square Error (RMSE). The individual ML methods were evaluated on datasets of various sizes using the features with the highest correlation to SOH and the full set of features to detect overfitting. Further experiments explored the dependency of RMSE on the amount of training data, and SOH estimation of one battery was performed using training data from another. Overall, experiments show that nearly all methods achieved RMSE below 0.5% for SOH estimation, with SVR proving the most stable technique and ANFIS excelling with meticulously optimized configurations.","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"44 1","pages":""},"PeriodicalIF":6.6,"publicationDate":"2025-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143560843","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Laser surface remelting to restore corrosion resistance in sulfide-compromised austenitic stainless steels

IF 5.5 3区材料科学

Electrochimica Acta Pub Date : 2025-03-06 DOI: 10.1016/j.electacta.2025.145913

Ana Larissa Soares Cruz , Virginie Roche , Margarita Diaz-Ramos , Gustavo Figueira , Witor Wolf , Conrado Ramos Moreira Afonso , Vincent Martin , Alberto Moreira Jorge Jr. , Piter Gargarella , Guilherme Yuuki Koga

{"title":"Laser surface remelting to restore corrosion resistance in sulfide-compromised austenitic stainless steels","authors":"Ana Larissa Soares Cruz , Virginie Roche , Margarita Diaz-Ramos , Gustavo Figueira , Witor Wolf , Conrado Ramos Moreira Afonso , Vincent Martin , Alberto Moreira Jorge Jr. , Piter Gargarella , Guilherme Yuuki Koga","doi":"10.1016/j.electacta.2025.145913","DOIUrl":"10.1016/j.electacta.2025.145913","url":null,"abstract":"<div><div>This study investigates the impact of laser surface remelting (LSR) on enhancing the corrosion resistance of 316L stainless steel (SS), focusing on the mitigation of manganese sulfide (MnS) inclusions. Optimized LSR parameters, including an energy density of 2000 J/cm² and power levels of 150 W and 300 W, effectively modify and solubilize coarse and acicular MnS inclusions, leading to a refined and homogeneous microstructure. The remelted samples exhibit a thicker, uniform chromium-oxygen-rich passive layer, particularly Cr2O3, significantly enhancing resistance to pitting corrosion. Electrochemical analyses, supported by the Power Law model and polarization curves, reveal that LSR improves passive film properties, with high resistivity values (ρδ) indicating superior electrochemical performance. The elemental redistribution of key alloying elements such as chromium and molybdenum further reduce micro-galvanic coupling effects. The results emphasize the synergistic effects of higher energy densities and power levels in restoring the corrosion resistance of the surface to be able forming protective passive films with increased uniformity and thickness. By demonstrating the ability to recover and optimize corrosion resistance, LSR emerges as a transformative surface engineering strategy for advancing material performance in environments prone to aggressive corrosion, providing valuable insights for demanding industrial applications.</div></div>","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"522 ","pages":"Article 145913"},"PeriodicalIF":5.5,"publicationDate":"2025-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143548950","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Structural Complexity and Ionic Conductivity in Gadolinium and Tungsten Co-Doped La2Mo2O9: A Potential Electrolyte for IT-SOFCs 钆和钨共掺杂 La2Mo2O9 中的结构复杂性和离子电导率：一种潜在的 IT-SOFC 电解质

IF 6.6 3区材料科学

Electrochimica Acta Pub Date : 2025-03-05 DOI: 10.1016/j.electacta.2025.145944

Saurabh S. Shiwankar, Smita A. Acharya, Arpit B. Mendhe, Shraddha M. Shirbhate, Manavendra Singh, Archna Sagdeo

{"title":"Structural Complexity and Ionic Conductivity in Gadolinium and Tungsten Co-Doped La2Mo2O9: A Potential Electrolyte for IT-SOFCs","authors":"Saurabh S. Shiwankar, Smita A. Acharya, Arpit B. Mendhe, Shraddha M. Shirbhate, Manavendra Singh, Archna Sagdeo","doi":"10.1016/j.electacta.2025.145944","DOIUrl":"https://doi.org/10.1016/j.electacta.2025.145944","url":null,"abstract":"Gadolinium and tungsten co-substituted variants of lanthanum molybdate, characterized by the nominal formula La2-xGdxMo1.7W0.3O9-δ (x=0.0, 0.1, 0.2, 0.3, 0.4) and denoted as LMXG, were synthesized using the Pechini method. Structural analyses employing X-ray diffraction (XRD) and angle dispersive X-ray diffraction (AD-XRD) were conducted, and the obtained data were well-fitted utilizing Rietveld refinement with the Full-Prof suite. The XRD results revealed a cubic structure with a P213 space group for both pure and co-doped LMX samples, confirming the co-dopant-induced suppression of the order-disorder phase transition temperature of LMX. Further structural investigation through AD-XRD unveiled the monoclinic structure of pure LMX, characterized by the space group P21. Raman spectroscopy provided detailed insights into the dopant-induced local restructuring within the Lanthanum molybdate lattice. Dielectric relaxation was examined through dielectric loss spectra, and AC impedance measurements were employed to extract data on ionic conductivity and activation energy. The outcomes indicated that co-doping enhances the oxy-ion conductivity compared to pure LMX. Notably, La1.7Gd0.3Mo1.7W0.3O9 (LMXG3) exhibited a higher ionic conductivity of approximately 2 × 10-2 Scm-1 at 650°C, surpassing the conductivity of the pure LMX sample and other co-doped LMX variants. This investigation underscores the potential of the Gd and W co-doped LMX system as a solid electrolyte for intermediate-temperature solid oxide fuel cells (IT-SOFCs).","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"36 1","pages":""},"PeriodicalIF":6.6,"publicationDate":"2025-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143546974","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Molecular engineering of carbon nanotubes with diiron dithiolato compounds for electrocatalytic overall water splitting

IF 6.6 3区材料科学

Electrochimica Acta Pub Date : 2025-03-05 DOI: 10.1016/j.electacta.2025.145986

Shao-Jie Wang, Xi Bai, Xue Su, Tian-Fang Wang, Yan-Bin He, Pei-Hua Zhao

{"title":"Molecular engineering of carbon nanotubes with diiron dithiolato compounds for electrocatalytic overall water splitting","authors":"Shao-Jie Wang, Xi Bai, Xue Su, Tian-Fang Wang, Yan-Bin He, Pei-Hua Zhao","doi":"10.1016/j.electacta.2025.145986","DOIUrl":"https://doi.org/10.1016/j.electacta.2025.145986","url":null,"abstract":"Due to the excellent catalytic hydrogen evolution reaction (HER) activities of natural [FeFe]-hydrogenases and in order to extend these [FeFe]-hydrogenase mimics for electrocatalytic overall water splitting. Herein, we first prepared a new series of diphosphine-chelate diiron dithiolato compounds [Fe2(μ-pdt)(CO)4{(Ph2PCH2)2NR}] (pdt = (SCH2)2CH2 and R = (CH2)3OH (1), (CH2)3NMe2 (2), (CH2)2CHMe2 (3)) defined as [FeFe]-hydrogenase mimics and then fabricated their attachments onto carbon nanotubes (CNTs) denoted as 2Fe2S/CNT hybrids H1, H2 and H3 with different interfacial interactions. Further, the resulted hybrids H1-H3 are all active for the electrocatalytic HER and OER but exhibit the activity trend of H1 > H2 > H3 in 0.1 M KOH solution (pH of 13). Significantly, we selected the highly-active hybrid H1 as the cathode and anode materials to form a two-electrode cell (H1||H1), which is more efficient for overall water electrolysis in 0.1 M KOH solution relative to that (Pt/C||IrO2) assembled with commercial Pt/C and IrO2 with the identical loading amounts of metal elements as H1. To our knowledge, these 2Fe2S/CNT hybrids H1-H3 are the first examples of bifunctional diiron-based molecular electrocatalysts for HER and OER. This work is of great importance to extend the potential application of hydrogenase-inspired diiron molecular electrocatalysts for overall water splitting.","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"22 1","pages":""},"PeriodicalIF":6.6,"publicationDate":"2025-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143561340","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Early-stage techno-economic evaluation of electrochemical nitrogen reduction to ammonia based on catalyst performance 基于催化剂性能的电化学氮还原氨早期阶段技术经济评价

IF 6.6 3区材料科学

Electrochimica Acta Pub Date : 2025-03-05 DOI: 10.1016/j.electacta.2025.145893

Michael J. Rix, Alexander Mitsos

{"title":"Early-stage techno-economic evaluation of electrochemical nitrogen reduction to ammonia based on catalyst performance","authors":"Michael J. Rix, Alexander Mitsos","doi":"10.1016/j.electacta.2025.145893","DOIUrl":"https://doi.org/10.1016/j.electacta.2025.145893","url":null,"abstract":"The direct electrochemical reduction of nitrogen offers a promising alternative to produce ammonia, an important chemical and potential energy carrier. While current research focuses on developing and improving catalysts for this reaction, studies evaluating the process and establishing catalyst performance targets remain limited. We performed a techno-economic analysis to evaluate the process based on the performance of the nitrogen reduction reaction catalyst. As a result, we identify catalyst performance targets: minimal performance levels as a combination of cell potential, Faraday efficiency, and current density required to reach cost parity with benchmark prices. The minimal catalyst performance levels are illustrated via curves that relate the required current density to the Faraday efficiency. For a competitive process, current densities and Faraday efficiencies above 100 mA cm-2 and 60%, respectively, are required. Although some catalyst development studies report sufficiently high Faraday efficiencies, the current densities are well below the required. Contrary to the literature’s emphasis on maximizing the Faraday efficiency, our results underscore the need for higher current densities at sufficiently high Faraday efficiencies. Although parameters such as electricity or benchmark prices change the absolute values of the required catalyst performance, the primary conclusions remain unchanged. This analysis provides clear guidance for future catalyst development.","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"16 1","pages":""},"PeriodicalIF":6.6,"publicationDate":"2025-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143546972","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Catalysis-Driven Strategy for Overcoming Kinetic Limitations in Sn4P3 Anodes for Lithium-Ion Storage 克服锂离子储能 Sn4P3 阳极动力学限制的催化驱动策略

IF 6.6 3区材料科学

Electrochimica Acta Pub Date : 2025-03-05 DOI: 10.1016/j.electacta.2025.145937

Zihan Hu, Weifang Liu, Zhiyang Xiao, Shaojie Liang, Ruizhi Wen, Zhongwen Liu, Tao Chen, Xiaofang Li

{"title":"Catalysis-Driven Strategy for Overcoming Kinetic Limitations in Sn4P3 Anodes for Lithium-Ion Storage","authors":"Zihan Hu, Weifang Liu, Zhiyang Xiao, Shaojie Liang, Ruizhi Wen, Zhongwen Liu, Tao Chen, Xiaofang Li","doi":"10.1016/j.electacta.2025.145937","DOIUrl":"https://doi.org/10.1016/j.electacta.2025.145937","url":null,"abstract":"Metal phosphide anode materials have the advantages of high capacity, high stability and magnification, and have a good application in lithium-ion batteries. However, poor reversibility and sharp volume expansion caused by the conversion reaction of metal phosphide during the insertion of Li seriously hinder the development. Therefore, this work pioneering the use of nitrogen-rich porous carbon framework (NPCF) obtained by pyrolyzing high-energy Metal-organic framework (MOF) as catalyst and support of Sn4P3 to obtain NPCF@Sn4P3. Nitrogen-rich high-energy ligands with abundant electron pairs and excellent catalytic activity are used to catalyze the conversion reaction process of Sn4P3, which significantly reduces the activation barrier of Li3P, solves the problem of slow kinetics caused by multi-electron transfer during the conversion process of Li3P to LiP, and improves its chemical reversibility and kinetic properties. Moreover, the porous carbon carrier of the composite as a buffer layer also alleviates the volume expansion problem. NPCF@Sn4P3 exhibits high capacity, long-term cycle stability (423.53mAh g−1 after 1000 cycles at 1A g−1), and superior pseudo capacitance performance. This work provides a strategy to improve the cyclic performance of metal phosphide anode by rationally adding catalysts to achieve lithium-ion storage, which may inspire the design of electrodes for other high-performance energy storage systems.","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"34 1","pages":""},"PeriodicalIF":6.6,"publicationDate":"2025-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143546973","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Ion Selectivity and Electrosorption of Pseudocapacitive NiFe2O4 Nanocrystals

IF 6.6 3区材料科学

Electrochimica Acta Pub Date : 2025-03-05 DOI: 10.1016/j.electacta.2025.145971

Rahat Alam, Ahmed Alhajaj, Linda Zou

{"title":"Ion Selectivity and Electrosorption of Pseudocapacitive NiFe2O4 Nanocrystals","authors":"Rahat Alam, Ahmed Alhajaj, Linda Zou","doi":"10.1016/j.electacta.2025.145971","DOIUrl":"https://doi.org/10.1016/j.electacta.2025.145971","url":null,"abstract":"Pseudocapacitive NiFe2O4 (NFO) nanocrystals and reduced graphene oxide (rGO) nanosheets were synthesized, and their ion selectivity and electrosorption performance were evaluated. The NFO cathode-anode pair demonstrated a remarkable preference for SO42− over Cl−, achieving a selectivity coefficient 76 within the first 30 minutes. This pronounced selectivity for anion SO42− was primarily attributed to its higher divalent negative charge, which induced a stronger electrostatic attraction to the positively charged NFO electrode surface (+15.2 mV). Both materials delivered comparable salt adsorption capacities (SAC) of 231 mg g−1 for NFO and 243 mg g−1 for rGO in Al(NO3)3.9H2O solution. The superior electrosorption performance of the NFO electrode was not attributed to its surface area, which was very low due to the non-porous material; instead, it was due to NFO's well-defined crystalline lattice spacing and available interstitial spaces enabled efficient ion intercalation and electrosorption. A key advantage of NFO was its exceptional divalent anion selectivity, where the electrode adsorbed 2.84 times more SO42− ions than Cl− ions, demonstrating a high selectivity that usually cannot be achieved by electric double-layer (EDL)-based electrodes. These results highlight NFO electrodes as a promising alternative electrode material for compact and energy-efficient capacitive deionization (CDI) systems, particularly for applications demanding superior ion selective separation.","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"53 1","pages":""},"PeriodicalIF":6.6,"publicationDate":"2025-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143546971","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The impact of cell electrodeformation on dynamic electroporation: A multiphysics coupled model

IF 5.5 3区材料科学

Electrochimica Acta Pub Date : 2025-03-05 DOI: 10.1016/j.electacta.2025.145961

Fanyu Guo , Shengnan Zou , Xiangbiao Wei , Linying Liu

{"title":"The impact of cell electrodeformation on dynamic electroporation: A multiphysics coupled model","authors":"Fanyu Guo , Shengnan Zou , Xiangbiao Wei , Linying Liu","doi":"10.1016/j.electacta.2025.145961","DOIUrl":"10.1016/j.electacta.2025.145961","url":null,"abstract":"<div><div>Cells undergo electroporation (EP) and electrodeformation (ED) under the pulsed electric fields, but the impact of ED on the EP effect remains incompletely understood. To address this, we have constructed a mechanical-electrical coupled model that realizes the interaction between cell EP and ED in COMSOL Multiphysics. We have used MATLAB to accurately calculate the dynamic changes in the model's geometric shape over time steps. The model prediction of the cell aspect ratio changes is compared with experimental results, showing good agreement. Subsequently, based on the EP-ED two-way coupled model and the dynamic EP model, we investigated the spatiotemporal evolution of induced transmembrane potential (ITV) and pore density under different electrical conductivities of the medium. The results show that ED (direction and extent) significantly influences the EP. A prolate deformation can promote the EP effect, while an oblate deformation suppresses it, with the extent of ED modulating these effects. This model enhances the accuracy of EP simulations and offers valuable guidance for selecting clinical parameters in the practical application of pulsed electric fields.</div></div>","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"522 ","pages":"Article 145961"},"PeriodicalIF":5.5,"publicationDate":"2025-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143548949","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

High-Performance Asymmetric Supercapacitors using Optimized Coral-type-Ni3S2/NiCu Layered Double Hydroxide Hierarchical Nanostructures on Nickel Foam

IF 6.6 3区材料科学

Electrochimica Acta Pub Date : 2025-03-04 DOI: 10.1016/j.electacta.2025.145967

Prashant Shivaji Shewale, Kwang-Seok Yun

{"title":"High-Performance Asymmetric Supercapacitors using Optimized Coral-type-Ni3S2/NiCu Layered Double Hydroxide Hierarchical Nanostructures on Nickel Foam","authors":"Prashant Shivaji Shewale, Kwang-Seok Yun","doi":"10.1016/j.electacta.2025.145967","DOIUrl":"https://doi.org/10.1016/j.electacta.2025.145967","url":null,"abstract":"The depletion of fossil energy resources has accelerated the global pursuit of renewable energy storage solutions. Supercapacitors (SCs) have gained prominence due to their high power density, fast charge-discharge rates, and long cycle life. In this study, we develop optimized coral-type nickel sulfide (Ni₃S₂)/nickel-copper layered double hydroxide (NiCu LDH) nanostructures on nickel foam (NF) via electrochemical anodization, cathodic deposition, and a modified solvothermal method for high-performance asymmetric supercapacitors (ASCs). Physical and chemical characterizations confirm the successful incorporation of Ni₃S₂ and NiCu LDH, revealing a well-defined crystalline structure, uniform morphology, and consistent elemental distribution. Ni₃S₂ provides excellent electrical conductivity and structural stability, addressing the limitations of NiCu LDH. The coral-like Ni₃S₂ and NiCu LDH hierarchical nanostructures enhance porosity and surface area, contributing to superior electrochemical properties. The composite electrode exhibits a specific capacitance of 8.80 F∙cm⁻² and 204 F∙cm⁻³ at 1 mA, excellent cycling stability, and improved charge transfer kinetics. The assembled NF/Ni₃S₂/NiCuLDH//AC/NF ASC device demonstrates a specific energy of 27.34 Wh∙kg⁻¹ and specific power of 126.67 W∙kg⁻¹ at 5 mA, making it a promising candidate for advanced energy storage applications. This study provides valuable insights into the design and optimization of hierarchical composite materials for enhanced energy storage.","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"17 1","pages":""},"PeriodicalIF":6.6,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143538541","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0