Electrochimica Acta最新文献_第4页

Laser-beam powder bed fusion of Si-doped Fe-Mn alloys: manufacturing quality, phase transformation and biodegradation performance 掺硅铁锰合金的激光粉末床熔合：制造质量、相变和生物降解性能

IF 5.5 3区材料科学

Electrochimica Acta Pub Date : 2025-05-26 DOI: 10.1016/j.electacta.2025.146519

Xiong Yao , Shuaishuai Zhu , Cijun Shuai , Chengde Gao

{"title":"Laser-beam powder bed fusion of Si-doped Fe-Mn alloys: manufacturing quality, phase transformation and biodegradation performance","authors":"Xiong Yao , Shuaishuai Zhu , Cijun Shuai , Chengde Gao","doi":"10.1016/j.electacta.2025.146519","DOIUrl":"10.1016/j.electacta.2025.146519","url":null,"abstract":"<div><div>Fe-Mn alloys have emerged as promising candidates for biodegradable implants due to their excellent mechanical properties and good biocompatibility. Unfortunately, Fe-Mn alloys still suffer from slow degradation. In this study, laser-beam powder bed fusion (LPBF) process combined with Si doping was proposed to fabricate Fe-Mn alloys with accelerated degradation. Firstly, an optimal process parameter (laser power of 150 W, scanning speed of 60 mm s-1, and hatch distance of 0.08 mm) was identified based on the lowest surface roughness (2.61 μm) and the highest relative density (99.1 %). On this basis, the effects of varying Si contents (x = 0, 3, 6, and 9 wt %) on the phase composition and thereby the degradation behavior of LPBF-fabricated (LPBFed) Fe-25Mn-xSi alloys were systematically examined. Specifically, the extremely rapid cooling inherent to LPBF and the resulting expansion of Si solid solubility facilitated the phase transformation from γ-austenite to ε-martensite with increasing Si content, accompanied by a decrease of α-ferrite phase content. As a result, an accelerated corrosion rate (0.26±0.02 mm y-1) was obtained for the LPBFed Fe-25Mn-6Si alloy, which was mainly attributed to the galvanic coupling corrosion occurring among the multiple phases, as well as to phase content variations induced by phase transformation. In summary, this study could offer a potential pathway for the development of biodegradable metals for implant applications.</div></div>","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"533 ","pages":"Article 146519"},"PeriodicalIF":5.5,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144138496","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

Yolk-Shell-Structured (CrMnFeCoNi)3O4 High-Entropy Oxide Anode for High-Performance Lithium-Ion Batteries 高性能锂离子电池用蛋黄壳结构（crmnnfeconi）3O4高熵氧化物阳极

IF 6.6 3区材料科学

Electrochimica Acta Pub Date : 2025-05-26 DOI: 10.1016/j.electacta.2025.146545

Jagabandhu Patra, Thi Xuyen Nguyen, Ananya Panda, Chien-Te Hsieh, Fu-Ming Wang, Tzi-Yi Wu, Chun-Chen Yang, Dominic Bresser, Jyh-Ming Ting, Jeng-Kuei Chang

{"title":"Yolk-Shell-Structured (CrMnFeCoNi)3O4 High-Entropy Oxide Anode for High-Performance Lithium-Ion Batteries","authors":"Jagabandhu Patra, Thi Xuyen Nguyen, Ananya Panda, Chien-Te Hsieh, Fu-Ming Wang, Tzi-Yi Wu, Chun-Chen Yang, Dominic Bresser, Jyh-Ming Ting, Jeng-Kuei Chang","doi":"10.1016/j.electacta.2025.146545","DOIUrl":"https://doi.org/10.1016/j.electacta.2025.146545","url":null,"abstract":"High-entropy oxides (HEOs), composed of multiple cations, have emerged as potential anode materials for lithium-ion batteries (LIBs) owing to their excellent capacity, outstanding cycling stability, and tunable charge-discharge properties. This study systematically investigates the effects of morphology on the electrochemical performance of HEO anodes. Combining the high-entropy strategy with morphological tuning can effectively improve the electrochemical performance. Herein, (CrFeMnNiCo)3O4 HEOs with well-defined nanoparticle (HEO-NP) and yolk-shell (HEO-YS) structures are successfully synthesized. The influence of morphology on the electrochemical performance of HEO-NP and HEO-YS electrodes are systematically examined. HEO-YS with a yolk-shell morphology outperforms HEO-NP, delivering superior capacities of 954 and 650 mAh g–1 at lithiation-delithiation rates of 50 and 2000 mA g–1, respectively, along with an impressive capacity retention of 94% after 250 cycles. The superior rate capability and cycling stability of HEO-YS can be ascribed to its unique yolk-shell structure, which accommodates volume change, mitigates structural strain, and enhances lithium-ion diffusion. These findings provide valuable insights into morphology engineering as a strategy for optimizing the electrochemical performance of HEO anodes for next-generation LIBs.","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"1 1","pages":"146545"},"PeriodicalIF":6.6,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144145952","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

New insights on efficient electrochemical production of hydrogen peroxide 高效电化学生产过氧化氢的新见解

IF 6.6 3区材料科学

Electrochimica Acta Pub Date : 2025-05-26 DOI: 10.1016/j.electacta.2025.146546

Robson S. Rocha, Beatriz Nogueira, Robson S. Souto, Marcos R.V. Lanza, Manuel A. Rodrigo

{"title":"New insights on efficient electrochemical production of hydrogen peroxide","authors":"Robson S. Rocha, Beatriz Nogueira, Robson S. Souto, Marcos R.V. Lanza, Manuel A. Rodrigo","doi":"10.1016/j.electacta.2025.146546","DOIUrl":"https://doi.org/10.1016/j.electacta.2025.146546","url":null,"abstract":"Hydrogen peroxide production was investigated using a highly efficient 3D-printed electrochemical reactor (4 cm in height and width) equipped with a gas diffusion electrode. The system was evaluated across a broad range of current densities, approaching those required for industrial-scale production. Remarkably high efficiencies were achieved, which were found to be strongly influenced by the electrolyte composition but largely independent of current density. A maximum efficiency of 100% was observed when sodium sulfate was used as the supporting electrolyte. Contrary to expectations, the use of perchlorate and nitrate instead of sulfate led to a significant decrease in efficiency, suggesting the presence of catalytic effects linked to mediated oxidation mechanisms. These findings highlight the critical role of the anodic process in the cathodic generation of hydrogen peroxide. Based on this evidence, a simple phenomenological model was developed to elucidate the primary mechanisms governing efficient hydrogen peroxide production. The model also provides practical recommendations for enhancing process efficiency, positioning this compact technology as a promising alternative to conventional electrochemical systems and a viable competitor to the industrial anthraquinone process.","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"19 1","pages":""},"PeriodicalIF":6.6,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144137085","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

Corrosion prevention in electrochemical capacitors 电化学电容器的防腐

IF 6.6 3区材料科学

Electrochimica Acta Pub Date : 2025-05-26 DOI: 10.1016/j.electacta.2025.146547

Jarosław Wojciechowski, Szymon Jasiński, Grzegorz Lota

{"title":"Corrosion prevention in electrochemical capacitors","authors":"Jarosław Wojciechowski, Szymon Jasiński, Grzegorz Lota","doi":"10.1016/j.electacta.2025.146547","DOIUrl":"https://doi.org/10.1016/j.electacta.2025.146547","url":null,"abstract":"The shrinking resources and the aggressive exploitation of fossil fuels have led to a far–reaching environmental degradation. Therefore, in recent years, work on chemical power sources and energy storage devices has been intensified. The mentioned chemical power sources and energy storage devices are not only batteries (rechargeable cells) and primary cells but also electrochemical capacitors (ECs), which have been gaining more interest in recent years. These devices, unlike typical batteries and cells, store electrical energy by accumulating a charge in an electrical double layer at the electrode/electrolyte interface. Nevertheless, regardless of the choice of the method of energy storage, every device described above has a certain lifetime, which depends on many factors, including the corrosion of metal and/or steel current collectors. Therefore, the aim of this study is to examine the impact of positive current collector anti-corrosive surface modification on the effect of the lifetime of an EC device. In this case, a double-layer oxide/siloxane coating was applied to the surface of the stainless steel collector. The research results proved that the inhibition of its corrosion by the implementation of the mentioned coating has a positive effect on the extension of the lifetime of the electrochemical capacitor.","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"35 1","pages":""},"PeriodicalIF":6.6,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144137039","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

Effect of Tilted Wall in Through Glass Via on the Electrochemical Deposition Process 玻璃通孔倾斜壁对电化学沉积过程的影响

IF 6.6 3区材料科学

Electrochimica Acta Pub Date : 2025-05-26 DOI: 10.1016/j.electacta.2025.146556

Ziniu Yu, Yuhan Gao, Xin Lei, Yuxin Chen, Kezhong Xu, Yuqi Zhou, Fulong Zhu

{"title":"Effect of Tilted Wall in Through Glass Via on the Electrochemical Deposition Process","authors":"Ziniu Yu, Yuhan Gao, Xin Lei, Yuxin Chen, Kezhong Xu, Yuqi Zhou, Fulong Zhu","doi":"10.1016/j.electacta.2025.146556","DOIUrl":"https://doi.org/10.1016/j.electacta.2025.146556","url":null,"abstract":"Glass substrates are advancing as key materials for high-density chip packaging due to their superior thermal and electrical properties. A critical challenge in through glass via (TGV) is achieving reliable copper electrodeposition via featuring tilted sidewalls. This study numerically investigates the via tilt angles and inhibitor concentrations in the electroplating process to optimize defect-free copper filling. Through finite element simulation, tilt angles ranging from 0° to 10° and varied inhibitor concentrations are investigated to identify conditions that promote butterfly-shaped copper deposition. Additionally, machine learning techniques are employed to predict the occurrence of void defects, enhancing the efficiency of the optimization process. The simulation results show that the appropriate inhibitor concentration is beneficial in balancing the deposition rate and reducing the formation of voids. Excessive tilt angle and inhibitor concentration lead to over-passivation, hindering deposition efficiency and compromising filling quality. This work provides insights into the electroplating of TGV and demonstrates the potential of machine learning to improve electroplating processes.","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"172 1","pages":"146556"},"PeriodicalIF":6.6,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144145903","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

Low temperature growth of dense carbon nanotube forest for electrochemical sensing of guanine 用于鸟嘌呤电化学传感的致密碳纳米管林低温生长研究

IF 6.6 3区材料科学

Electrochimica Acta Pub Date : 2025-05-25 DOI: 10.1016/j.electacta.2025.146539

Naohiro Hasegawa, Rento Fujihara, Shin-ichi Naya, Tetsuro Soejima, Hiroaki Tada, Hisashi Sugime

引用次数: 0

pH-mediated charge tuning of chitosan membrane: a smart approach to control electrochemical selectivity ph介导的壳聚糖膜电荷调谐：一种控制电化学选择性的智能方法

IF 6.6 3区材料科学

Electrochimica Acta Pub Date : 2025-05-25 DOI: 10.1016/j.electacta.2025.146541

Agata Smułka, Adrian Olejnik, Dorota Zarzeczańska, Anna Wcisło, Jacek Ryl, Artur Zieliński, Tadeusz Ossowski

引用次数: 0

Dy2NiRu0.5Ir0.5O6: A Catalyst Precursor for Acidic Oxygen Evolution Reaction Dy2NiRu0.5Ir0.5O6：酸性析氧反应的催化剂前驱体

IF 6.6 3区材料科学

Electrochimica Acta Pub Date : 2025-05-25 DOI: 10.1016/j.electacta.2025.146543

Isabel Rodríguez, Francisco J. Pérez-Alonso, José Luis Gómez de la Fuente, Álvaro Tolosana-Moranchel, Laura Pascual, Dalia Liuzzi, Cristina Peinado, Sergio Rojas, María Retuerto

{"title":"Dy2NiRu0.5Ir0.5O6: A Catalyst Precursor for Acidic Oxygen Evolution Reaction","authors":"Isabel Rodríguez, Francisco J. Pérez-Alonso, José Luis Gómez de la Fuente, Álvaro Tolosana-Moranchel, Laura Pascual, Dalia Liuzzi, Cristina Peinado, Sergio Rojas, María Retuerto","doi":"10.1016/j.electacta.2025.146543","DOIUrl":"https://doi.org/10.1016/j.electacta.2025.146543","url":null,"abstract":"This article presents the synthesis and evaluation of a novel double perovskite Dy2NiRu0.5Ir0.5O6, as a promising catalyst precursor for the oxygen evolution reaction (OER) in acidic electrolyte. In this perovskite, which was synthesised by a simple sol-gel process, there are two different B sites, one with Ni2+ atoms, and the other in which half of the Ir4+ atoms are replaced by Ru4+.Electrochemical measurements revealed and exceptional OER activity, with an Ir-normalised mass activity 5–7 times higher than the state-of-the-art IrO2 benchmarks. The catalyst also exhibited remarkable stability, maintaining a stable performance for at least 36,000 OER cycles. Structural and compositional analyses during cycling revealed a transformation of the pristine double perovskite structure into a 3D-hollow Ir0.9Ru0.1Ox framework. The reconstruction, which is driven by the dissolution of Dy3+, Ni2+ and part of Ru4+, results in a highly active and durable electrocatalyst. The enhanced OER performance is attributed to the composition and increased surface area of the reconstructed Ir0.9Ru0.1Ox hollow structure.","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"149 1","pages":""},"PeriodicalIF":6.6,"publicationDate":"2025-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144137084","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

Flower-like superstructure of iron phosphide @ carbon nanosheets as an all-in-one anode for ultrahigh-area-capacity sodium-ion batteries 花状上层结构的磷化铁@碳纳米片作为超高面积容量钠离子电池的一体化阳极

IF 6.6 3区材料科学

Electrochimica Acta Pub Date : 2025-05-25 DOI: 10.1016/j.electacta.2025.146540

Yuyan Qiu, Kerou Qiu, Rui Liu, Shuiping Luo, Miao Hu, Xinsheng Li, Xiyong Chen, Jinliang Zhu

{"title":"Flower-like superstructure of iron phosphide @ carbon nanosheets as an all-in-one anode for ultrahigh-area-capacity sodium-ion batteries","authors":"Yuyan Qiu, Kerou Qiu, Rui Liu, Shuiping Luo, Miao Hu, Xinsheng Li, Xiyong Chen, Jinliang Zhu","doi":"10.1016/j.electacta.2025.146540","DOIUrl":"https://doi.org/10.1016/j.electacta.2025.146540","url":null,"abstract":"Iron phosphide, which possesses high theoretical capacity and low cost, holds promise for use in sodium-ion batteries. Nevertheless, practical application has been hindered by significant volume expansion during cycling and low electrical conductivity. To address these limitations, a novel three-dimensional flower-like nanosheet structures coated with carbon layers (Fe2P@C NSs) on iron foam has been constructed via a chemical vapor deposition-like method. This unique 3D flower-like structure serves as a conducive pathway for electrolyte transport and Na+ transfer. By combining a carbon layer and a 3D substrate, Fe2P@C NSs not only accomodates volume expansion and prevents aggregation and pulverization of Fe2P nanosheets during Na+ insertion/extraction, but also establishes a 3D conductive network for charge transfer. Consequently, the migration path of Na+ is shortened, enhancing the contact area between the electrode and electrolyte, thus improving reaction kinetics. As a result of these design features, the 3D flower-like Fe2P@C NSs exhibit an ultra-high surface capacity and remarkable cycling stability (retaining 81% capacity after 2000 cycles at 5 mA cm-2) in sodium-ion batteries. The success of this approach suggests that the preparation strategy outlined in this study offers innovative insights for the development of high-performance metal phosphide materials.","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"19 1","pages":""},"PeriodicalIF":6.6,"publicationDate":"2025-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144137086","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

Electrochemical performance study of novel chlorosulfonated polyethylene electrode binder for LiFePO4 cathode 新型氯磺化聚乙烯LiFePO4阴极电极粘合剂的电化学性能研究

IF 5.5 3区材料科学

Electrochimica Acta Pub Date : 2025-05-24 DOI: 10.1016/j.electacta.2025.146537

Yangshuhan Xu , Feng Chen

{"title":"Electrochemical performance study of novel chlorosulfonated polyethylene electrode binder for LiFePO4 cathode","authors":"Yangshuhan Xu , Feng Chen","doi":"10.1016/j.electacta.2025.146537","DOIUrl":"10.1016/j.electacta.2025.146537","url":null,"abstract":"<div><div>Polyvinylidene fluoride (PVDF) is a kind of traditional binder for positive or negative electrode of lithium battery. However, the high cost and moisture sensibility of PVDF are the two main drawbacks in practical application. In this work, we provided a novel binder chlorosulfonated polyethylene (CP) for positive electrode of lithium battery, which can also be used for anode. Binders for cathodes are usually the same as for anodes. In addition, this binder is much cheaper and insensitive to moisture. The superficial morphologies of electrodes with chlorosulfonated polyethylene and polyvinylidene fluoride were characterized by SEM. ATR-FTIR was used to reflect the chemical composition of the electrode with chlorosulfonated polyethylene binder. The electrochemical performances were tested by electrochemical workstation and battery tester. According to the results of electrochemical test, the half-cell with chlorosulfonated polyethylene binder presented relatively comparable electrochemical performances with the half-cell of PVDF binder, such as potential-capacity tests, discharge capacity tests of different rate and cycle charge-discharge tests. Besides, in potential-capacity tests, the half-cell with chlorosulfonated polyethylene binder exhibited 140 mAh/g capacity which is 7.7 % higher than that of the half-cell with PVDF binder. The CP binder may be the candidate for PVDF binder in future application.</div></div>","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"533 ","pages":"Article 146537"},"PeriodicalIF":5.5,"publicationDate":"2025-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144130283","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