Electrochimica Acta最新文献_第6页

Corrosion crack initiation and propagation in storage tanks under multi-field environments: A review 多场环境下储罐腐蚀裂纹萌生与扩展研究进展

IF 5.6 3区材料科学

Electrochimica Acta Pub Date : 2025-09-20 DOI: 10.1016/j.electacta.2025.147430

He Liu , Zilong Deng , Yubin Mu , Di Yu , Jingjie Ren , Mingshu Bi

引用次数: 0

A novel strategy for construction of a ratio dual signal electrochemical sensing platform to detect homocysteine 构建比值双信号电化学传感平台检测同型半胱氨酸的新策略

IF 5.6 3区材料科学

Electrochimica Acta Pub Date : 2025-09-20 DOI: 10.1016/j.electacta.2025.147432

Xiaoli Zhang, Yan Zhang, Hongna Ma, Yali Yang, Xiuhui Liu

{"title":"A novel strategy for construction of a ratio dual signal electrochemical sensing platform to detect homocysteine","authors":"Xiaoli Zhang, Yan Zhang, Hongna Ma, Yali Yang, Xiuhui Liu","doi":"10.1016/j.electacta.2025.147432","DOIUrl":"10.1016/j.electacta.2025.147432","url":null,"abstract":"<div><div>Reliable and selective sensing of homocysteine (Hcy) is essential for early screening and prevention of chronic diseases in elderly populations. In this work, we proposed a new \" on-off \" signal ratio sensing strategy. Specifically, homocysteine (Hcy) and catechol (Cat) were chosen as dual-signal probes, and the ratio sensing perform of Hcy was constructed by monitoring the dynamic changes of I4-SH-Cat/ICat and IHcy/ICat. The linear response range covered 5.76 × 10-⁹ ∼ 1.23 × 10-⁴ M, with a low detection limit of 1.92 nM. Furthermore, the electrochemical reaction mechanism was explored thoroughly based on 1,4-Michael addition reaction between Hcy and Cat. Importantly, the proposed ratio electrochemical method can selectively identify Hcy in the presence of cysteine (Cys). Therefore, the study provides an effective method for realizing fast, reliable and sensitive determination of Hcy, and exhibits significant application value in biomedical analysis and clinical diagnosis for early screening of Hcy-related diseases.</div></div>","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"542 ","pages":"Article 147432"},"PeriodicalIF":5.6,"publicationDate":"2025-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145093613","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

Dependence of microstructure and mechanical properties of electrodeposited copper foils on electrochemical behavior of sodium saccharin 电沉积铜箔的微观结构和力学性能与糖精钠电化学行为的关系

IF 5.6 3区材料科学

Electrochimica Acta Pub Date : 2025-09-20 DOI: 10.1016/j.electacta.2025.147431

Che Liu , Zhao Cheng , Linhai Liu , Jin Zheng , Xiangcheng Chen , Kexing Song , Lei Lu

{"title":"Dependence of microstructure and mechanical properties of electrodeposited copper foils on electrochemical behavior of sodium saccharin","authors":"Che Liu , Zhao Cheng , Linhai Liu , Jin Zheng , Xiangcheng Chen , Kexing Song , Lei Lu","doi":"10.1016/j.electacta.2025.147431","DOIUrl":"10.1016/j.electacta.2025.147431","url":null,"abstract":"<div><div>Electrodeposited copper foils with engineered properties are in high demand as critical components in lithium-ion batteries (LIBs) and printed circuit boards (PCBs). In this study, the effects of sodium saccharin (SAC) on the 9 μm-thick electrodeposited copper foils were systematically investigated. SAC is found to markedly reduce the surface roughness of the copper foils, attaining a minimum Rz value of 0.91 μm. As the SAC concentration increases, the grain size of the copper foils decreases markedly, accompanied by an enhancement in dislocation density. Moreover, the (220) crystallographic texture becomes increasingly pronounced. These microstructural changes induced by SAC collectively contribute to a significant improvement in mechanical performance, with the tensile strength reaching up to 617 MPa. To elucidate the working mechanism of the electrodeposition additive, a series of electrochemical analyses were conducted, revealing that SAC forms complexes with cupric ions, thereby altering the electrochemical reduction kinetics and elevating the electrodeposition overpotential. Furthermore, SAC exhibits a potential-dependent behavior that stems from the imbalance between the consumption and transport rates of cupric ions during the electrodeposition process. These findings shed light on the role that complexing agents play in electrodeposited copper foil production, providing both mechanistic insight and a practical basis for engineering high-performance electrodeposited copper foils.</div></div>","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"542 ","pages":"Article 147431"},"PeriodicalIF":5.6,"publicationDate":"2025-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145088927","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

Decoupling shell thickness and heteroatom doping in hollow carbon spheres for mechanistic control of charge storage 解耦壳厚度和杂原子掺杂在空心碳球中的电荷存储机制控制

IF 6.6 3区材料科学

Electrochimica Acta Pub Date : 2025-09-20 DOI: 10.1016/j.electacta.2025.147427

Zhu Dongyu, Wang Yan, Yang Xingchen, Wang Hanbo, Xu Yahui, Wang Ziming, Tian Yumei, Lu Haiyan

{"title":"Decoupling shell thickness and heteroatom doping in hollow carbon spheres for mechanistic control of charge storage","authors":"Zhu Dongyu, Wang Yan, Yang Xingchen, Wang Hanbo, Xu Yahui, Wang Ziming, Tian Yumei, Lu Haiyan","doi":"10.1016/j.electacta.2025.147427","DOIUrl":"https://doi.org/10.1016/j.electacta.2025.147427","url":null,"abstract":"Electrochemical supercapacitors must simultaneously deliver high power density, long life, and rising volumetric energy, yet converting surface area rich carbons into compact, fast, and durable electrodes remains nontrivial. Hollow spherical structures have been extensively studied for their application as supercapacitor electrode materials due to their large specific surface area, regular morphology, and numerous modification sites. This work focuses on the precise control of the shell layer thickness of hollow carbon spheres (HCS) while introducing nitrogen atoms via a one-step method to further enhance the material’s volumetric active material density. The resulting HCS-N-1 exhibits an excellent specific capacitance of 381 F g-1 at 1 A g-1 in a three-electrode system, and maintains an astonishing capacitance retention rate of 97.45% after 20,000 cycles at 10 A g-1. The assembled symmetric supercapacitor (SSC) exhibits an preeminent energy density of 32.5 Wh kg-1 at a particularly excellent power density of 2463 W kg-1, with only an 8.41% energy decay after 20,000 charge-discharge cycles. These impressive electrochemical properties highlight the strategic insights provided by this work for the structural design of high-performance hollow spherical carbon materials.","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"88 1","pages":""},"PeriodicalIF":6.6,"publicationDate":"2025-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145088928","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

Enhanced sodium storage performance of layered LiV3O8 cathodes via synergistic Zr4+ doping and ultrasonic treatment Zr4+协同掺杂和超声处理提高了层状LiV3O8阴极的储钠性能

IF 5.6 3区材料科学

Electrochimica Acta Pub Date : 2025-09-20 DOI: 10.1016/j.electacta.2025.147428

Qing Han , Yu Niu , Lei Wang , Lingling Xie , Xuejing Qiu , Hongjun Chen , Yuling Wang , Limin Zhu , Xiaoyu Cao

{"title":"Enhanced sodium storage performance of layered LiV3O8 cathodes via synergistic Zr4+ doping and ultrasonic treatment","authors":"Qing Han , Yu Niu , Lei Wang , Lingling Xie , Xuejing Qiu , Hongjun Chen , Yuling Wang , Limin Zhu , Xiaoyu Cao","doi":"10.1016/j.electacta.2025.147428","DOIUrl":"10.1016/j.electacta.2025.147428","url":null,"abstract":"<div><div>Developing high-performance sodium-ion battery (SIB) cathodes is crucial for their practical deployment. Layered LiV3O8 (LVO) has emerged as a promising candidate due to the multivalence of vanadium, which facilitates multi-electron redox reactions and provides a high theoretical capacity. However, the electrochemical performance of LVO suffers from rapid capacity fading, multiple charge-discharge plateaus, and irreversible phase transitions during cycling. To mitigate these issues, we synthesized LiV3-xZrxO8 with varying Zr4+ doping levels (x = 0.01, 0.02, 0.03). Among these, LiV2.98Zr0.02O8 exhibited superior cycling stability and reversible sodium-ion intercalation. At a current density of 30 mA·g-1 and within a voltage window of 1.8–4.0 V, it achieved an initial specific discharge capacity of 177.2 mAh·g-1, retaining 97.1 mAh·g-1 after 300 cycles, significantly outperforming the other doping levels. Further enhancements to LiV2.98Zr0.02O8 were achieved through ultrasonic and thermal treatment, resulting in the sample designated LiV2.98Zr0.02O8 Ut-300. This material demonstrated markedly improved sodium storage performance compared to its untreated form. Electrochemical impedance spectroscopy and galvanostatic intermittent titration technique analyses unveiled that LiV2.98Zr0.02O8 Ut-300 possessed the lowest charge transfer resistance and the higher sodium ion diffusion coefficient, approximately 10–12 cm2·s-1. This study presents a strategy for high-performance layered metal oxide electrodes to significantly boost SIB energy storage.</div></div>","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"542 ","pages":"Article 147428"},"PeriodicalIF":5.6,"publicationDate":"2025-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145088926","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

Superhydrophobic coatings with enhanced adhesion for LA103Z alloy: Barrier-passivation synergy toward robust dual-stage corrosion protection LA103Z合金的超疏水涂层附着力增强：屏障-钝化协同作用实现强大的双级腐蚀防护

IF 5.6 3区材料科学

Electrochimica Acta Pub Date : 2025-09-20 DOI: 10.1016/j.electacta.2025.147429

Jie Tian , Jianchun Sha , Xue Li , Yiqiang Yang , Jiaxin Bao , Weilong Chen , Wenhong Liu , Zhiqiang Zhang

{"title":"Superhydrophobic coatings with enhanced adhesion for LA103Z alloy: Barrier-passivation synergy toward robust dual-stage corrosion protection","authors":"Jie Tian , Jianchun Sha , Xue Li , Yiqiang Yang , Jiaxin Bao , Weilong Chen , Wenhong Liu , Zhiqiang Zhang","doi":"10.1016/j.electacta.2025.147429","DOIUrl":"10.1016/j.electacta.2025.147429","url":null,"abstract":"<div><div>Developing durable superhydrophobic coatings is of great significance for enhancing the service performance of Mg-Li alloys. Herein, this study employs synergistic anodic oxidation-electrodeposition (AO-ED) technology to develop a superhydrophobic composite coating with hierarchical micro-nano structures on LA103Z alloy. Combining enhanced corrosion resistance, robust adhesion and self-cleaning functionality in one system, this coating significantly extends material lifespan. The synergistic interaction between the Mg(OH)2 interlayer and the functional Ca[CH₃(CH₂)₁₂COO]₂ layer enhance the coating adhesion from Grade 2 to Grade 1. Electrochemical measurements reveal that the composite coating exhibits an ultralow corrosion current density (Icorr) of 2.80×10−⁸ A·cm−². Composite coating possesses a high charge transfer resistance (Rct) of 2.47×10⁶ Ω·cm², representing a four-order-of-magnitude improvement over the bare substrate. The composite coating achieves long-term corrosion protection in 3.5 wt.% NaCl solution through a dynamic dual-stage mechanism. During the initial corrosion stage (0–7 days), the composite coating delays electrolyte penetration through the Cassie-Baxter superhydrophobic air cushion barrier effect (contact angle = 157.9°). In the subsequent protective phase (>7 days), long-term corrosion resistance is sustained by in-situ formation of a dense passivation film within the anodic layer, synergistically coupled with interfacial stability to maintain system impedance on the order of 10⁴ Ω·cm².</div></div>","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"542 ","pages":"Article 147429"},"PeriodicalIF":5.6,"publicationDate":"2025-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145088925","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

Editorial: Electrochimica Acta introduces new article formats 社论：《电化学学报》引入了新的文章格式

IF 6.6 3区材料科学

Electrochimica Acta Pub Date : 2025-09-20 DOI: 10.1016/j.electacta.2025.147426

引用次数: 0

Zinc deposition characteristics in different electrolytes for aqueous zinc ion battery 含水锌离子电池在不同电解质中的锌沉积特性

IF 5.6 3区材料科学

Electrochimica Acta Pub Date : 2025-09-19 DOI: 10.1016/j.electacta.2025.147422

Shiwei Wang , Shiwen Deng , Jingfang Zhang , Jiangping Ran , Weishang Jia , Xinxiu Yan , Lanxiang Feng , Wei Zou

{"title":"Zinc deposition characteristics in different electrolytes for aqueous zinc ion battery","authors":"Shiwei Wang , Shiwen Deng , Jingfang Zhang , Jiangping Ran , Weishang Jia , Xinxiu Yan , Lanxiang Feng , Wei Zou","doi":"10.1016/j.electacta.2025.147422","DOIUrl":"10.1016/j.electacta.2025.147422","url":null,"abstract":"<div><div>Aqueous zinc-ion batteries (ZIBs) are promising for sustainable energy storage due to high safety, low cost, and eco-friendliness, yet zinc metal anodes face challenges like dendrite growth, interfacial side reactions, and corrosion. To optimize electrolytes, this study systematically investigates five zinc salts (ZnSO4, Zn(ClO4)2, Zn(TFSI)2, Zn(NO3)2, and Zn(CH3COO)2) regarding zinc deposition behavior, interfacial stability, and electrochemical performance. Electrochemical techniques and multiscale characterizations reveal anion-influenced deposition and degradation mechanisms. ZnSO4 exhibited superior performance: symmetric cell cycled over 1700 h at 1 mA cm−2, Zn||Cu cell maintained 99.7 % of Coulombic efficiency (CE), and full cell delivered 76.7 mAh g−1 of average capacity. This stems from sulfate-induced formation of a stable Zn4SO4(OH)6·4H2O (ZHS) interfacial layer, suppressing dendrites. However, localized H2 evolution can raise pH and destabilize the interface. Zn(TFSI)2 showed low polarization and good stability at 5 mA cm−2, hydrophobic TFSI− may reduce surface impedance. Zn(ClO4)2 offered moderate stability, yet ClO4− reduction to corrosive Cl− limited long-term cycling. Conversely, Zn(CH3COO)2 and Zn(NO3)2 caused rapid decay: acetate decomposition produces corrosion-accelerating CO32−, while nitrate reduction generates acidic species inducing severe corrosion and short-circuit. This work offers critical insights into zinc electrolyte design, highlighting the key role of anion chemistry in interfacial engineering and cycling durability.</div></div>","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"542 ","pages":"Article 147422"},"PeriodicalIF":5.6,"publicationDate":"2025-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145084131","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

Potential-controlled PEO coatings on biomimetic textured AA2024: treatment optimization and corrosion resistance 仿生织构AA2024的电位控制PEO涂层：工艺优化及耐腐蚀性能

IF 5.6 3区材料科学

Electrochimica Acta Pub Date : 2025-09-19 DOI: 10.1016/j.electacta.2025.147409

Matteo Gamba , Andrea Cristoforetti , Michele Fedel , Federica Ceriani , Marco Ormellese , Andrea Brenna

{"title":"Potential-controlled PEO coatings on biomimetic textured AA2024: treatment optimization and corrosion resistance","authors":"Matteo Gamba , Andrea Cristoforetti , Michele Fedel , Federica Ceriani , Marco Ormellese , Andrea Brenna","doi":"10.1016/j.electacta.2025.147409","DOIUrl":"10.1016/j.electacta.2025.147409","url":null,"abstract":"<div><div>AA2024 alloy (4 % Cu, 1.5 % Mg) is one of the most used in aeronautical applications because of its outstanding mechanical properties due to the presence of intermetallic precipitates. These, however, act as cathodes coupled to the aluminum matrix undermining the corrosion resistance. Therefore, AA2024 always needs a coating for being serviced. Plasma electrolytic oxidation (PEO) is a quite recent anodic coating technology exploiting plasma discharges in aqueous solutions for growing a protective oxide layer upon valve metals such as AA2024. At the same time, sharkskin biomimetic texturing is an emerging solution for the passive reduction of fluid dynamic drag. A pattern made of adjacent crests, if realized with proper dimensions, can reach a significant fuel saving upon vehicles both in air and in water.</div><div>This study aims at optimizing a short potentiostatic PEO coating treatment for the application upon a biomimetic textured AA2024 surface, with the double aim of preserving the pattern parameters and enhancing corrosion resistance. The relation between electrolyte composition, spark features and coating properties has been studied by considering as main variables the cationic composition of the electrolyte (K+ and Na+) and its alkalinity. SEM observations and corrosion resistance tests allowed to establish that a reduced spark intensity can reduce the defectiveness of the oxide layer, at the price of a lower coating thickness. In particular, K+ substitution with Na+ cations and alkalinity reduction appeared to be effective in doing this, showing the best corrosion resistance and the most accurate texture reproduction.</div></div>","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"542 ","pages":"Article 147409"},"PeriodicalIF":5.6,"publicationDate":"2025-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145084130","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

In situ polymerization of aniline on phosphazene-based covalent organic polymer (P-COP) electrode material for enhanced supercapacitor energy storage 苯胺在磷基共价有机聚合物（P-COP）电极材料上的原位聚合用于增强超级电容器储能

IF 5.6 3区材料科学

Electrochimica Acta Pub Date : 2025-09-19 DOI: 10.1016/j.electacta.2025.147424

Netsanet Emiru , Saravanan Saranya , Femi Emmanuel Olu , Solomon Demiss Negedu , Krishnaraj Ramaswamy , Ram Jethmalani C. H , Ragupathy Dhanusuraman , Seenuvasan Vedachalam

{"title":"In situ polymerization of aniline on phosphazene-based covalent organic polymer (P-COP) electrode material for enhanced supercapacitor energy storage","authors":"Netsanet Emiru , Saravanan Saranya , Femi Emmanuel Olu , Solomon Demiss Negedu , Krishnaraj Ramaswamy , Ram Jethmalani C. H , Ragupathy Dhanusuraman , Seenuvasan Vedachalam","doi":"10.1016/j.electacta.2025.147424","DOIUrl":"10.1016/j.electacta.2025.147424","url":null,"abstract":"<div><div>Supercapacitors offer long cycle life and high-power density for various applications. Phosphazene-based Covalent Organic Polymer (P-COP) is a popular electrode material due to its large surface area and pore structure. However, low conductivity and energy storage are practical constraints. To solve this problem, conducting polymer polyaniline (PANI) was incorporated via in-situ polymerization. The structure and characteristics of P-COP@PANI are described using SEM, TEM, XRD, TGA, XPS, BET, and electrochemical characterization methods like CV, GCD, and EIS. The specific capacitance of P-COP@PANI is 642 Fg⁻¹, which exhibited a maximum energy density of 43.7 Wh kg⁻¹ with a power density of 1050 W kg⁻¹ at a current density of 3 A g⁻¹ with the potential window 0 to 0.8 V. After 3000 cycles, it still kept 93.52 % of its capacity retention. The study emphasizes the necessity of incorporating P-COP into PANI to give high-performance supercapacitors, displaying better electrochemical qualities and creating the way for rational conceptualization of the future of energy storage materials.</div></div>","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"542 ","pages":"Article 147424"},"PeriodicalIF":5.6,"publicationDate":"2025-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145084132","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