Electrochimica Acta最新文献_第3页

Electrochemical capacitors with lithium chloride/polyvinyl alcohol solid polymer electrolyte for ionotronic-based thermal sensors 离子电子热传感器用氯化锂/聚乙烯醇固体聚合物电解质电化学电容器

IF 5.5 3区材料科学

Electrochimica Acta Pub Date : 2025-06-19 DOI: 10.1016/j.electacta.2025.146740

Libu Manjakkal, Chandini Kumar, Mustehsan Beg, Amith Mathew, Jeeva Saju, Febin Paul, Prasutha Rani Markapudi

{"title":"Electrochemical capacitors with lithium chloride/polyvinyl alcohol solid polymer electrolyte for ionotronic-based thermal sensors","authors":"Libu Manjakkal, Chandini Kumar, Mustehsan Beg, Amith Mathew, Jeeva Saju, Febin Paul, Prasutha Rani Markapudi","doi":"10.1016/j.electacta.2025.146740","DOIUrl":"10.1016/j.electacta.2025.146740","url":null,"abstract":"<div><div>This paper describes an ionotronic-based sensor that can detect changes in temperature using a solid polymer electrolyte (SPE)-based transparent electrochemical capacitor (EC). The EC developed using flexible ITO as an active electrode and polyvinyl alcohol (PVA)- lithium chloride (LiCl) gel composite-based SPE. The electrochemical performances of the sensors are investigated using cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), and galvanostatic charging and discharging (GCD) analysis. The EC was fabricated using a freestanding SPE, which exhibits a specific capacitance of 4.19 μF. cm<sup>-</sup>² at a scan rate of 5 mV. s<sup>-1</sup>. The direct coating of the SPE on the electrode enhances the specific capacitance and is found to be 18.70 μF.cm<sup>-</sup>², which is 12 times higher than the EC fabricated using freestanding SPE. When a temperature was applied to the top of the EC with directly coated SPE, we observed a variation in the device’s capacitance due to the change in the mobility of ions of the SPE, which is directly related to the temperature change. The EC exhibits a sensitivity of 0.30 µF/ °C (R<sup>2</sup>= 0.9694) for the temperature range of -10 to 50 °C. Due to its ionic reaction, the EC demonstrates a high capacitance value in the range of µF in the low frequency range, which shows its potential application in ionotronic-based sensing and as an energy storage for the next generation of wearable devices.</div></div>","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"536 ","pages":"Article 146740"},"PeriodicalIF":5.5,"publicationDate":"2025-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144319530","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

Feature-driven machine learning screening of sodium-ion battery electrodes to support large-scale energy storage 特征驱动的机器学习筛选钠离子电池电极，以支持大规模能量存储

IF 6.6 3区材料科学

Electrochimica Acta Pub Date : 2025-06-19 DOI: 10.1016/j.electacta.2025.146734

Hong Qian, Zhong Tang, Yuhao Liu, Xiangyang Liu, Binxia Yuan

{"title":"Feature-driven machine learning screening of sodium-ion battery electrodes to support large-scale energy storage","authors":"Hong Qian, Zhong Tang, Yuhao Liu, Xiangyang Liu, Binxia Yuan","doi":"10.1016/j.electacta.2025.146734","DOIUrl":"https://doi.org/10.1016/j.electacta.2025.146734","url":null,"abstract":"This study combines the Materials Genome Initiative (MGI) and machine learning to explore the screening and performance prediction of sodium-ion battery cathode materials, contributing to the development of large-scale energy storage. By performing feature importance analysis, three models (model #1, model #2, and model #3) are constructed using 21, 5, and 1 input features, respectively, to represent different stages of the electrode material screening process. Using PCA and weighting methods, the output feature ACE (average voltage, specific capacity, specific energy) is constructed to describe the overall performance of energy storage batteries. This method enables an approximate evaluation of the overall battery performance (as represented by the ACE feature) from a single, easily accessible input, making it suitable for early-stage screening, significantly enhancing machine learning efficiency while maintaining high accuracy and robustness. Furthermore, this paper discusses selecting ACE weights for different grid energy storage applications and designing specific output feature weight ratios for grid energy storage and frequency regulation. In the forward application, four promising electrode materials are identified, while in the reverse application, the model helps define the input feature range for designing new materials.","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"11 1","pages":""},"PeriodicalIF":6.6,"publicationDate":"2025-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144319534","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

Unveiling the Advancements in Electrochemical Performance of PCN-777/ReSe2@LiO2 for Asymmetric Supercapacitors and Electrochemical Hydrogen Production 非对称超级电容器PCN-777/ReSe2@LiO2电化学性能及电化学制氢研究进展

IF 6.6 3区材料科学

Electrochimica Acta Pub Date : 2025-06-19 DOI: 10.1016/j.electacta.2025.146741

M. Alharbi, Muhammad Waqas Iqbal, Yas Al-Hadeethi, Ehtisham Umar, Sondos Khayyat

{"title":"Unveiling the Advancements in Electrochemical Performance of PCN-777/ReSe2@LiO2 for Asymmetric Supercapacitors and Electrochemical Hydrogen Production","authors":"M. Alharbi, Muhammad Waqas Iqbal, Yas Al-Hadeethi, Ehtisham Umar, Sondos Khayyat","doi":"10.1016/j.electacta.2025.146741","DOIUrl":"https://doi.org/10.1016/j.electacta.2025.146741","url":null,"abstract":"This study pioneers the development of a novel composite electrode material, integrating PCN-777 MOF, ReSe<sub>2</sub> nanosheets, and LiO<sub>2</sub> dopants to exploit their synergistic properties. ReSe<sub>2</sub>, a transition metal dichalcogenide, addresses the inherent poor conductivity of MOFs by acting as an efficient electron mediator due to its narrow bandgap and high electrical conductivity. The PCN-777 MOF provides an ideal scaffold, leveraging its large pore volume and high surface area to facilitate ion transport and disperse active sites, thereby enhancing charge storage capabilities. The incorporation of LiO<sub>2</sub> further boosts pseudocapacitive behavior and the reversibility of redox reactions by introducing additional redox-active sites and accelerating ion diffusion kinetics. To our knowledge, this is the first exploration of such a tripartite synergy in a single composite electrode for enhanced electrochemical performance. In asymmetric supercapacitor (ASC) configuration (PCN-777/ReSe<sub>2</sub>@LiO<sub>2</sub>//AC), the hybrid device reached maximum specific capacity (Qs) of 259 C/g at 1.0 A/g. The PCN-777/ReSe<sub>2</sub>@LiO<sub>2</sub>//AC device demonstrated an impressive power density (Pd) of 974 W/kg and attained a maximum energy density (Ed) of 82.5 Wh/kg. Additionally, it exhibited exceptional cyclic stability, retaining 88.2% of its initial capacitance after 12,000 charge-discharge cycles. In the context of hydrogen evolution reaction (HER), the PCN-777/ReSe<sub>2</sub>@LiO<sub>2</sub> electrode exhibited a notably low overpotential of 89.7 mV, along with a favorable Tafel slope of 56.7 mV/dec. These exceptional electrochemical characteristics underscore the potential of this hybrid material as a highly promising candidate for both energy storage and HER-related applications.","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"12 1","pages":""},"PeriodicalIF":6.6,"publicationDate":"2025-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144319537","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

Scalable synthesis of processable high performance O3-NaNi0.4Mn0.4Fe0.2O2: a methodological investigation and electrochemical Insights 可加工高性能O3-NaNi0.4Mn0.4Fe0.2O2的可扩展合成：方法学研究和电化学见解

IF 6.6 3区材料科学

Electrochimica Acta Pub Date : 2025-06-19 DOI: 10.1016/j.electacta.2025.146738

Elena Gonzalo, Lander Rodriguez-Castaño, Yawen He, Jorge Martinez de Argote Añon, Montse Galceran, Aitor Villaverde, Marta Cabello, Nicholas E. Drewett

{"title":"Scalable synthesis of processable high performance O3-NaNi0.4Mn0.4Fe0.2O2: a methodological investigation and electrochemical Insights","authors":"Elena Gonzalo, Lander Rodriguez-Castaño, Yawen He, Jorge Martinez de Argote Añon, Montse Galceran, Aitor Villaverde, Marta Cabello, Nicholas E. Drewett","doi":"10.1016/j.electacta.2025.146738","DOIUrl":"https://doi.org/10.1016/j.electacta.2025.146738","url":null,"abstract":"The O3-NaNi<sub>0.4</sub>Mn<sub>0.4</sub>Fe<sub>0.2</sub>O<sub>2</sub> (NaNMF442) cathode material was synthesised using a scalable coprecipitation and calcination process, yielding a high-purity and crystalline material well-suited for sodium ion batteries. Electrochemical properties were investigated using sodium metal anode counter electrodes and the cells were found to give a capacity of 140.5 mAh g<sup>-1</sup>, an average voltage of 3.17 V vs. Na<sup>+</sup>/Na, and an energy density of 445.4 Wh Kg<sup>-1</sup> at a (dis)charge rate of 24 mA g<sup>-1</sup>, and 118.8 mAh g<sup>-1</sup>, 3.1 V vs. Na<sup>+</sup>/Na, and 316.8 Wh Kg<sup>-1</sup> at 240 mA g<sup>-1</sup>. Further testing in proof-of-concept full cells against commercial hard carbon counter electrodes, followed by a comprehensive post-cycling analysis, revealed that the half cell performance had been limited by electrolyte decomposition. This was attributed to side reaction with the sodium metal, highlighting the importance of a holistic analysis of all cell components, from synthesis to post-cycling, in order to ensure a comprehensive understanding of material performance. These results demonstrate the promising nature of the sodium nickel-manganese-iron layered oxide family, in particular those based on the NaNMF442 stoichiometry, as high-performance cathode materials with good rate capability for sodium ion batteries.","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"15 1","pages":""},"PeriodicalIF":6.6,"publicationDate":"2025-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144319533","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

Single-Walled Carbon Nanohorns decorated with Silver Nanostructures as an Enhanced Voltammetric Platform for Nitrate Monitoring 银纳米结构修饰的单壁碳纳米角作为硝酸盐监测的增强伏安平台

IF 6.6 3区材料科学

Electrochimica Acta Pub Date : 2025-06-19 DOI: 10.1016/j.electacta.2025.146739

Bryan Pichún, Fabiana Liendo, Amaya Paz de la Vega, Johisner Penagos, Jaime Pizarro, Rodrigo Segura, María Jesús Aguirre

{"title":"Single-Walled Carbon Nanohorns decorated with Silver Nanostructures as an Enhanced Voltammetric Platform for Nitrate Monitoring","authors":"Bryan Pichún, Fabiana Liendo, Amaya Paz de la Vega, Johisner Penagos, Jaime Pizarro, Rodrigo Segura, María Jesús Aguirre","doi":"10.1016/j.electacta.2025.146739","DOIUrl":"https://doi.org/10.1016/j.electacta.2025.146739","url":null,"abstract":"Accurate and selective detection of nitrate is essential due to the environmental and health risks posed by excessive nitrate levels in water supplies. In this work, a novel electrochemical sensor for nitrate detection is presented, based on a glassy carbon electrode (GCE) modified with single-walled carbon nanohorns (SWCNHs) and electrochemically synthesized silver nanostructures (AgNSs). The combination of SWCNHs and AgNSs (AgNSs/SWCNHs/GCE) enhances the electrochemically active surface area (ECSA) of the sensor compared to AgNSs/GCE, resulting in superior sensitivity for nitrate analysis. The performance of the sensor was evaluated by square wave voltammetry (SWV) and characterized by scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), and cyclic voltammetry (CV). Under optimized conditions: 2.0 μL of 1.0 mg mL<sup>-1</sup> SWCNHs on the GCE and a 2-second electrodeposition of AgNSs at -0.8 V vs. saturated calomel electrode (SCE), the sensor exhibited a linear response to nitrate concentrations ranging from 0.2 to 100.0 mg L<sup>-1</sup>, with a detection limit of 0.17 mg L<sup>-1</sup>. The sensor demonstrated excellent repeatability, reproducibility, strong anti-interference with common ions (NO₂⁻, NH₄⁺, Cl⁻, ClO₄⁻, Mg²⁺, K⁺, Na⁺), and was successfully applied to nitrate detection in tap water, showing consistent and reliable results. This study highlights the potential of the developed sensor for environmental monitoring and water quality analysis.","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"12 1","pages":""},"PeriodicalIF":6.6,"publicationDate":"2025-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144319536","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

Zn-doped NiS2 wrapped by RGO nanosheets revealing improved electrochemical performances for supercapacitor application 由氧化石墨烯纳米片包裹的锌掺杂NiS2揭示了超级电容器应用中改进的电化学性能

IF 5.5 3区材料科学

Electrochimica Acta Pub Date : 2025-06-18 DOI: 10.1016/j.electacta.2025.146733

Wei Xiong , Weiyang Zhang , Chunyan Sun , Hongwei Kang , Xiaona Li , Zhikun Li

{"title":"Zn-doped NiS2 wrapped by RGO nanosheets revealing improved electrochemical performances for supercapacitor application","authors":"Wei Xiong , Weiyang Zhang , Chunyan Sun , Hongwei Kang , Xiaona Li , Zhikun Li","doi":"10.1016/j.electacta.2025.146733","DOIUrl":"10.1016/j.electacta.2025.146733","url":null,"abstract":"<div><div>Designing low-cost, high-performance electrodes are critical for assembling efficient energy storage devices. Herein, we have designed Zn-doped NiS<sub>2</sub> heterostructures wrapped by reduced graphene oxide (RGO) nanosheets <em>via</em> a facile hydrothermal route, and investigated their (ZNSRs) electrochemical energy storage properties. Hierarchical porous interconnected RGO nanosheets with high specific surface area and excellent conductivity not only provide good charge/ion fast transfer channels, thereby improving the reaction kinetics, but also promote the dispersion of zinc-nickel sulfide nanoparticles, thus improving the utilization of zinc-nickel sulfide with high specific capacity property. Meanwhile, the Zn-doped to form zinc-nickel sulfide heterostructure can improve the electrochemical reactivity of the nickel sulfide electrode, which can be beneficial to synergistically improve the energy storage properties. The test results show that the fabricated ZNSRs electrodes exhibit excellent energy storage performances. The optimal ZNSR-0.3 electrode not only exhibits a high specific capacity of 221.7 mAh <em>g</em><sup>−1</sup> at 0.8 A <em>g</em><sup>−1</sup>, but also the hybrid supercapacitor assembled with the designed RAC negative electrode also delivers a high energy density of 45.1 Wh kg<sup>−1</sup> (at power density of 603.9 W kg<sup>−1</sup>) and excellent long-term cycling stability (80.67 % capacity retention after 22,000 cycles). The fabricated ZNSR-0.3 electrode is demonstrated to be a promising alternative electrode in efficiency hybrid supercapacitor application.</div></div>","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"536 ","pages":"Article 146733"},"PeriodicalIF":5.5,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144319540","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

Heterostructure and carbon modification regulate FeF3/molten salt electrolyte interface in high-specific-energy thermal batteries 异质结构和碳改性对高比能热电池中FeF3/熔盐电解质界面的影响

IF 5.5 3区材料科学

Electrochimica Acta Pub Date : 2025-06-18 DOI: 10.1016/j.electacta.2025.146732

Zhenlong Liang, Chuanyu Jin, Yaning Chang, Xianghua Zhang, Yujing Zhu, Yongxu Du

{"title":"Heterostructure and carbon modification regulate FeF3/molten salt electrolyte interface in high-specific-energy thermal batteries","authors":"Zhenlong Liang, Chuanyu Jin, Yaning Chang, Xianghua Zhang, Yujing Zhu, Yongxu Du","doi":"10.1016/j.electacta.2025.146732","DOIUrl":"10.1016/j.electacta.2025.146732","url":null,"abstract":"<div><div>FeF<sub>3</sub> is an ideal cathode material for high-specific-energy thermal batteries, but its low conductivity and severe dissolution reactions with molten salt causes active material loss, interfacial passivation, and increased resistance, degrading discharge performance. To address these challenges, this study proposes the in situ construction of FeF<sub>2</sub> on the FeF<sub>3</sub> surface to form the FeF<sub>3</sub>/FeF<sub>2</sub> heterostructure, enhancing the conductivity and mitigating dissolution. And the conductive rGO and CNTs are introduced to further improve conductivity, regulate interfacial behavior, and suppress dissolution reactions, and reduce active material loss and passivation layer formation, thereby enhancing discharge performance. The FeF<sub>3</sub>/FeF<sub>2</sub>@CNTs cathodes achieve high specific capacity with 343.44 mAh g⁻<sup>1</sup> at 0.1 A cm⁻<sup>2</sup> and 566.68 mAh g⁻<sup>1</sup> at 0.05 A cm⁻<sup>2</sup>, outperforming FeF<sub>3</sub>/FeF<sub>2</sub>@rGO cathodes with stronger suppression of dissolution by 27.5 % and 48.3 %, respectively. Pulse resistance testing and interfacial analysis reveal that rGO coating reduces cathode/electrolyte interfacial wettability, causing interface separation, increased resistance, and voltage decline. Thus, this study highlights the importance of not only improving conductivity but also regulating interfacial wettability, dissolution, and charge transfer coupling to enhance discharge performance of thermal batteries, offering a novel design strategy for high-specific-energy thermal batteries.</div></div>","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"536 ","pages":"Article 146732"},"PeriodicalIF":5.5,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144311711","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

Phosphorus-doped coal-derived hard carbon anodes for high-performance sodium-ion batteries: Synergistic regulation of graphitization and sodium adsorption 高性能钠离子电池用掺磷煤衍生硬碳阳极：石墨化和钠吸附的协同调节

IF 5.5 3区材料科学

Electrochimica Acta Pub Date : 2025-06-18 DOI: 10.1016/j.electacta.2025.146731

Xiaohu Wang , Junhui Dong , Jie Ren , Kai Wang , Xuelei Li , Jihui Li , Junguang Tao

{"title":"Phosphorus-doped coal-derived hard carbon anodes for high-performance sodium-ion batteries: Synergistic regulation of graphitization and sodium adsorption","authors":"Xiaohu Wang , Junhui Dong , Jie Ren , Kai Wang , Xuelei Li , Jihui Li , Junguang Tao","doi":"10.1016/j.electacta.2025.146731","DOIUrl":"10.1016/j.electacta.2025.146731","url":null,"abstract":"<div><div>The development of high-performance anode materials is crucial for the commercialization of sodium-ion batteries (SIBs). Coal-derived hard carbon (HC) is a promising candidate due to its abundance and low cost, but its application is hindered by insufficient Na<sup>+</sup> storage capacity and low initial Coulombic efficiency (ICE) due to uncontrolled graphitization and limited active sites. Here, we introduce a novel phosphoric acid-assisted pre-oxidation strategy to synthesize phosphorus-doped hard carbon (HC-P) with multi-phase structural optimization. Phosphorus atoms are chemically integrated into the carbon matrix via covalent P–C–O bonding during pyrolysis, suppressing graphitization while inducing lamellar distortion. This results in expanded interlayer spacing (0.392 nm), abundant closed pores, and reduced Na<sup>+</sup> adsorption energy (–1.64 eV). The optimized HC-0.5P achieves a high reversible capacity of 322 mAh g<sup>–1</sup> at 0.1 C (vs. 267 mAh g<sup>–1</sup> for undoped HC) with an ICE of 87.6 %, surpassing most coal-based carbons. In situ Raman mapping and density functional theory calculations reveal a three-stage Na⁺ storage mechanism (adsorption-intercalation-pore filling), enabled by defect-rich architectures and hierarchical porosity. This work provides a cost-effective route to transform low-rank coal into high-performance SIBs anodes, addressing critical challenges in sustainable energy storage.</div></div>","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"536 ","pages":"Article 146731"},"PeriodicalIF":5.5,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144311710","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

Fabrication and electrochemical performance of reversible metal-supported solid oxide cells via atmospheric plasma spraying 常压等离子喷涂制备可逆金属支撑固体氧化物电池及其电化学性能

IF 5.5 3区材料科学

Electrochimica Acta Pub Date : 2025-06-17 DOI: 10.1016/j.electacta.2025.146727

Chun-Liang Chang , Chun-Huang Tsai , Chang-Shiang Yang , Ching-Yun Yang , Han-Xiang He , Szu-Han Wu , Yi-jing Wu

{"title":"Fabrication and electrochemical performance of reversible metal-supported solid oxide cells via atmospheric plasma spraying","authors":"Chun-Liang Chang , Chun-Huang Tsai , Chang-Shiang Yang , Ching-Yun Yang , Han-Xiang He , Szu-Han Wu , Yi-jing Wu","doi":"10.1016/j.electacta.2025.146727","DOIUrl":"10.1016/j.electacta.2025.146727","url":null,"abstract":"<div><div>This study investigates the fabrication and electrochemical performance of reversible metal-supported solid oxide cells (RSOCs) developed using atmospheric plasma spraying (APS) at the National Atomic Research Institute (NARI). The RSOC architecture features a tri-layer composite electrolyte composed of Sm-doped ceria (SDC) and Sr- and Mg-doped LaGaO₃ (LSGM), which enhances ionic conductivity and reduces polarization resistance. The 10 × 10 cm² cells deliver peak power densities of 660, 798, and 859 mW cm⁻² at 650, 700, and 750 °C, respectively, under 0.7 V fuel cell operation. Long-term stability testing at 700 °C over 1200 h reveals a degradation rate of approximately 1 % k⁻¹ h⁻¹, demonstrating excellent durability. In electrolysis mode, each RSOC generates hydrogen at a rate of 0.6 L min⁻¹ at 700 °C under 1.17 V and 80 A, achieving an efficiency of 88.03 % based on the lower heating value (LHV). The composite SDC/LSGM/SDC electrolyte exhibits an ionic conductivity of 0.0435 S cm⁻¹ at 750 °C, which outperforms that of LDC/LSGM (0.0308 S cm⁻¹), and displays a lower activation energy of 0.792 eV. A 100-hour preliminary electrolysis test indicates negligible degradation, confirming the structural integrity and dual-mode functionality of the RSOC. These results highlight APS-fabricated RSOCs as a promising platform for efficient and durable energy conversion and storage at intermediate temperatures.</div></div>","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"536 ","pages":"Article 146727"},"PeriodicalIF":5.5,"publicationDate":"2025-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144311712","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 use of electrochemical aptasensors for the detection of antibiotic residues in foods 电化学感应传感器用于食品中抗生素残留的检测

IF 5.5 3区材料科学

Electrochimica Acta Pub Date : 2025-06-17 DOI: 10.1016/j.electacta.2025.146729

Nuran Gokdere , Amber R. Solangi , Ismail Murat Palabiyik

{"title":"The use of electrochemical aptasensors for the detection of antibiotic residues in foods","authors":"Nuran Gokdere , Amber R. Solangi , Ismail Murat Palabiyik","doi":"10.1016/j.electacta.2025.146729","DOIUrl":"10.1016/j.electacta.2025.146729","url":null,"abstract":"<div><div>Food consumption is one of the basic needs for organisms to survive. Food can be exposed to different contaminants at every stage from production to consumption. Antibiotic residues in food are one of the important problems of contamination. Antibiotics are frequently used in the production of animal products to prevent infections in animals and to ensure that animals live longer. Careless and excessive use of antibiotics can lead to residue formation in animal products such as milk, eggs and meat. In addition, antibiotic residues mixed with soil and water pass into plant and animal foods and are taken into living organisms by consuming these foods. People who consume these products are exposed to antibiotic residues, which causes the development of antibiotic resistance, one of the biggest problems in organisms today. Aptamers are oligonucleotides that can bind to many targets such as proteins, drugs or other inorganic or organic molecules with high specificity and affinity. Using the SELEX method, aptamers selected from a library suitable for the analyte to be analyzed are frequently used instead of biological materials in sensor systems. Electrochemical aptasensors are widely preferred in analysis because they offer advantages such as stability, ease of use, rapid detection, miniaturization and high specificity. This review provides a summary of the studies and researches carried out in the last 5 years on electrochemical aptasensors for the determination of antibiotic residues in foods.</div></div>","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"536 ","pages":"Article 146729"},"PeriodicalIF":5.5,"publicationDate":"2025-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144311715","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