Electrochimica Acta最新文献_第5页

In-operando visualization of the dynamic microvia copper filling process for metal interconnection of integrated circuit 集成电路金属互连动态微孔充铜过程的实时可视化

IF 5.5 3区材料科学

Electrochimica Acta Pub Date : 2025-06-16 DOI: 10.1016/j.electacta.2025.146698

Jia-Qiang Yang, Tao Song, Zhao-Yun Wang, Lei Jin, Yi Zhao, Ren Hu, Jian-Jia Su, Fang-Zu Yang, Dongping Zhan, Lianhuan Han

{"title":"In-operando visualization of the dynamic microvia copper filling process for metal interconnection of integrated circuit","authors":"Jia-Qiang Yang, Tao Song, Zhao-Yun Wang, Lei Jin, Yi Zhao, Ren Hu, Jian-Jia Su, Fang-Zu Yang, Dongping Zhan, Lianhuan Han","doi":"10.1016/j.electacta.2025.146698","DOIUrl":"10.1016/j.electacta.2025.146698","url":null,"abstract":"<div><div>Metal Interconnection has been becoming the core technology in integrate circuit (IC) industry at post-Moore's law era from chip manufacturing through advanced 3D packaging to high density interconnection (HDI) of printed circuit boards (PCB), which is realized by electroplating copper (Cu) to fill the micro/nano-vias with various aspect ratio. However, the rational screening of Cu-electroplating additives remains challenges because there is no sufficient instrumental method for the real-time observation of the dynamic filling process. To this, we designed a visible electrolytic cell integrated with a microvia chip and recorded the dynamic microvia filling process in operando with a high-resolution video camera. The effects of suppressor, accelerator and leveler and the technique parameters were evaluated in a seeing-is-believing way, and were examined by the practical microvia filling experiments in PCB. This instrumental method, opens the “black box” of microvia filling process for metal interconnection, provides the most direct way for in-situ screening electroplating additives and will definitely facilitate the fundamental research and technical development of metal interconnection of IC manufacturing.</div></div>","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"535 ","pages":"Article 146698"},"PeriodicalIF":5.5,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144290491","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 role of monovalent cations in activating cathodic reactions for enhanced hydrogen evolution using Mn/MnSO4 redox pair 一价阳离子在Mn/MnSO₄氧化还原对促进析氢的阴极反应中的作用

IF 5.5 3区材料科学

Electrochimica Acta Pub Date : 2025-06-15 DOI: 10.1016/j.electacta.2025.146719

Yunyu Li , Xuhai Pan , Bahman Amini Horri

{"title":"The role of monovalent cations in activating cathodic reactions for enhanced hydrogen evolution using Mn/MnSO4 redox pair","authors":"Yunyu Li , Xuhai Pan , Bahman Amini Horri","doi":"10.1016/j.electacta.2025.146719","DOIUrl":"10.1016/j.electacta.2025.146719","url":null,"abstract":"<div><div>This study investigates the optimisation of the electrochemical performance of a novel Mn/MnSO₄ redox cycle using monovalent cations, including Li<sup>+</sup>, Na<sup>+</sup>, and <em>K</em><sup>+</sup>, to enhance hydrogen generation. The reaction mechanism of cations in the simultaneous hydrogen evolution reaction (HER) and manganese electrodeposition reaction (MEDR) was confirmed through a systematic analysis of the co-evolution stages to maximise the cell electrochemical performance. The results indicated that the effects of cations primarily depend on the differences between the activation of ion pairing/bridging and the inactivation of surface blocking for the HER and MEDR, along with the influence of mass-to-charge ratio, ion size, conductivity, ion distribution, and concentration polarisation. A high concentration of cations can efficiently boost the cell performance and current density due to the enhancement of HER, even though it simultaneously leads to the inhibition of MEDR, presenting high energy efficiency and productivity, but low manganese CE. Optimal performance was achieved by adding <em>K</em><sup>+</sup> cations using 0.8 mol/L potassium sulphate (K<sub>2</sub>SO<sub>4</sub>) solution to MnSO<sub>4</sub>, with a pH of 2.86, which resulted in 7.16 % improved current efficiency. In addition, it was found that potassium cations can make the electrodeposited manganese metal more easily detached from the electrode and cause a lower corrosion current density, which is in favour of production. The proposed system and approach offer the advantages of reducing specific energy consumption by 7.23 % compared to the conventional cells, providing new insights into the electrochemical behaviour of redox pairs mediated water splitting systems for the next generation of scalable, low-cost PEM electrolysis systems for sustainable hydrogen production.</div></div>","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"536 ","pages":"Article 146719"},"PeriodicalIF":5.5,"publicationDate":"2025-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144289998","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

Amorphous surface modification and scalability of WO₃ nanostructures for photoelectrocatalytic degradation of organic pollutants 用于光电催化降解有机污染物的WO₃纳米结构的非晶态表面修饰和可扩展性

IF 5.5 3区材料科学

Electrochimica Acta Pub Date : 2025-06-14 DOI: 10.1016/j.electacta.2025.146706

M. Cifre-Herrando , G. Roselló-Márquez , J. García-Antón , L. Mais , M. Mascia

{"title":"Amorphous surface modification and scalability of WO₃ nanostructures for photoelectrocatalytic degradation of organic pollutants","authors":"M. Cifre-Herrando , G. Roselló-Márquez , J. García-Antón , L. Mais , M. Mascia","doi":"10.1016/j.electacta.2025.146706","DOIUrl":"10.1016/j.electacta.2025.146706","url":null,"abstract":"<div><div>This work explores the use of WO₃ nanostructures as an effective solution for the removal of emerging contaminants from water, specifically focusing on the degradation of diethyl phthalate (DEP), a widely recognized environmental pollutant. A key aspect of the study is the scaling of the electrochemically active area and surface modification of WO₃ nanostructures, progressing from 0.5 cm² to 2.5 cm², followed by a surface reduction treatment that induces amorphization and enhances their photoelectrocatalytic activity after applying a 5-minute reduction treatment. Scaling was further extended to 15 cm², with the 15 cm² nanostructures exhibiting the highest DEP degradation rate, achieving a degradation constant of 0.0988 h⁻¹. The study also investigates the effect of key operational parameters such as applied voltage (1 V and 1.5 V), contaminant concentration (10 ppm, 25 ppm and 100 ppm). Reusability was also tested, with optimal conditions identified as 10 ppm DEP, 1 V, and the ability to reuse the nanostructures up to three times. Finally, under these optimal conditions, the degradation of DEP was monitored, leading to the identification of ten intermediate products and the proposal of a degradation pathway, highlighting the potential of WO₃ for sustainable and efficient water treatment applications.</div></div>","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"535 ","pages":"Article 146706"},"PeriodicalIF":5.5,"publicationDate":"2025-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144279760","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

A dual-signal sensor based on molecularly imprinted photonic polydopamine for detection of the oxidative stress biomarker allantoin 基于分子印迹光子聚多巴胺的双信号传感器检测氧化应激生物标志物尿囊素

IF 5.5 3区材料科学

Electrochimica Acta Pub Date : 2025-06-14 DOI: 10.1016/j.electacta.2025.146718

Akmaral Suleimenova , Ana C. Marques , Manuela F. Frasco , Elvira Fortunato , M. Goreti F. Sales

{"title":"A dual-signal sensor based on molecularly imprinted photonic polydopamine for detection of the oxidative stress biomarker allantoin","authors":"Akmaral Suleimenova , Ana C. Marques , Manuela F. Frasco , Elvira Fortunato , M. Goreti F. Sales","doi":"10.1016/j.electacta.2025.146718","DOIUrl":"10.1016/j.electacta.2025.146718","url":null,"abstract":"<div><div>A novel biomimetic detection method is presented allocating two transducer principles in a molecularly imprinted polymer (MIP)-based sensor. The device was constructed on a transparent three-electrode system of conductive indium tin oxide (ITO) fabricated by laser direct writing on glass substrates. The sensing layer was prepared by electropolymerizing dopamine in the presence of allantoin, on colloidal silica particles that exhibited a structural color due to the short-range ordered structure. This opto-electrochemical dual-signal output was successfully developed for the detection of the oxidative stress biomarker allantoin. The analytical properties were evaluated by electrochemical impedance spectroscopy and reflectance analysis of the structural color. The sensor showed a linear response over a wide range of allantoin concentrations (0.1 nmol L<sup>−1</sup> to 10000 nmol L<sup>−1</sup>) measured in synthetic urine. As expected, the lowest limit of detection in urine (0.012 nmol L<sup>−1</sup>) was achieved with the electrochemical signal. In addition, other urinary oxidative stress metabolites tested as interferents, namely uric acid and 8-hydroxy-2′-deoxyguanosine, had no effect on the dual-signal detection of allantoin. The biomimetic and cost-effective properties of the materials in combination with the improved analytical properties of opto-electrochemical detection provide a sensor platform with great potential for the screening of oxidative stress biomarkers in urinalysis.</div></div>","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"536 ","pages":"Article 146718"},"PeriodicalIF":5.5,"publicationDate":"2025-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144290002","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

Carbon nitride “patching” Fe-CoHNC catalysts for accelerating conversion kinetics in wide-temperature lithium-sulfur batteries 氮化碳“修补”Fe-CoHNC催化剂加速宽温锂硫电池转化动力学

IF 5.5 3区材料科学

Electrochimica Acta Pub Date : 2025-06-14 DOI: 10.1016/j.electacta.2025.146712

Xinghua Zou , Yuejin Zhu , Huishu Wu , Ying Xu , Zhangyu Zheng , Jie Xu , Xinsheng Zhang , Dongfang Niu

{"title":"Carbon nitride “patching” Fe-CoHNC catalysts for accelerating conversion kinetics in wide-temperature lithium-sulfur batteries","authors":"Xinghua Zou , Yuejin Zhu , Huishu Wu , Ying Xu , Zhangyu Zheng , Jie Xu , Xinsheng Zhang , Dongfang Niu","doi":"10.1016/j.electacta.2025.146712","DOIUrl":"10.1016/j.electacta.2025.146712","url":null,"abstract":"<div><div>Metal-nitrogen-carbon (M‒N‒C) catalysts have been widely studied in lithium-sulfur (Li-S) batteries due to high atomic utilization and well-defined structure. However, these catalysts often exhibit a substantial number of macropores on the surface of carbon matrix, with uneven distribution of pore structures, which limits their ability to effectively inhibit the shuttle effect. Herein, we combine oxidized two-dimensional carbon nitride (Ox-C<sub>3</sub>N<sub>4</sub>) with Fe and Co-contained three-dimensional carbon nanocages (Fe-CoHNC) to enhance the electrochemical performance of Li-S batteries (denoted as Fe-CoHNC@OCN). Ox-C<sub>3</sub>N<sub>4</sub>, with its large specific surface area and unique layered architecture, is selected for its strong ability to “patch” the pore structure of the Fe-CoHNC catalysts. The “patching” regulation not only reduces the quantity of macropores, improving the physical blocking efficiency, but also introduces additional chemical trapping sites to anchor and convert polysulfides, which is demonstrated by in-situ Raman test. Impressively, the Fe-CoHNC@OCN modified cell demonstrates remarkable cycling stability, achieving a decay rate of 0.064 % per cycle over 800 cycles at 1.0 C, and decent capacity tolerance at extreme temperatures (–10 °C and 60 °C).</div></div>","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"536 ","pages":"Article 146712"},"PeriodicalIF":5.5,"publicationDate":"2025-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144288658","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

Citric acid as electrolyte additive in aqueous magnesium-air battery used in Antarctic climate 柠檬酸作为电解液添加剂用于南极气候条件下的镁-空气水电池

IF 5.5 3区材料科学

Electrochimica Acta Pub Date : 2025-06-14 DOI: 10.1016/j.electacta.2025.146689

Iliyan Popov , Boris Shirov , Temenuzhka Spasova , Yovka Milusheva , Adlin Dancheva , Reneta Boukoureshtlieva

{"title":"Citric acid as electrolyte additive in aqueous magnesium-air battery used in Antarctic climate","authors":"Iliyan Popov , Boris Shirov , Temenuzhka Spasova , Yovka Milusheva , Adlin Dancheva , Reneta Boukoureshtlieva","doi":"10.1016/j.electacta.2025.146689","DOIUrl":"10.1016/j.electacta.2025.146689","url":null,"abstract":"<div><div>The Magnesium-Air battery is a highly attractive energy source due to its high specific energy, low cost, and potential for rapid mechanical recharging. This study explores the use of citric acid as an additive to saline electrolytes, including seawater, to enhance the performance of the magnesium-air electrochemical system under polar climate conditions.</div><div>The optimized electrolyte composition, containing 10 g/dm³ of citric acid, demonstrated a balance between moderate corrosion rates and high system stability. Low-temperature studies revealed that the citric acid-modified electrolyte maintained superior performance compared to the control, even at sub-zero temperatures, due to improved ionic conductivity and reduced freezing effects. This behavior highlights the additive's effectiveness in enabling continuous operation under extreme environmental conditions. Additionally, while not the main focus, it was observed that citric acid improved the performance of the gas diffusion electrode, further enhancing the overall system's efficiency.</div><div>A magnesium-air battery incorporating citric acid as an additive powered a weather station at the Bulgarian Antarctic Station on Livingstone Island from December 1, 2022, to January 31, 2023. The system operated reliably in the harsh polar environment, maintaining stable cell voltages and consistent operation at temperatures between +1 °C and +11 °C. These results demonstrate the potential of citric acid-enhanced magnesium-air batteries for remote and off-grid applications in extreme environments.</div></div>","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"535 ","pages":"Article 146689"},"PeriodicalIF":5.5,"publicationDate":"2025-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144281058","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-energy density solid-state biredox energy storage device based on poly(ionic liquid)/ionic liquid redox electrolytes 基于聚（离子液体）/离子液体氧化还原电解质的高能密度固态双氧化还原储能装置

IF 5.5 3区材料科学

Electrochimica Acta Pub Date : 2025-06-14 DOI: 10.1016/j.electacta.2025.146714

Pedro S.C. de Oliveira , Luana S. de Oliveira , Gabriel C. de Assis , Glaura G. Silva , Paulo F.R. Ortega , João Paulo C. Trigueiro , Rodrigo L. Lavall

{"title":"High-energy density solid-state biredox energy storage device based on poly(ionic liquid)/ionic liquid redox electrolytes","authors":"Pedro S.C. de Oliveira , Luana S. de Oliveira , Gabriel C. de Assis , Glaura G. Silva , Paulo F.R. Ortega , João Paulo C. Trigueiro , Rodrigo L. Lavall","doi":"10.1016/j.electacta.2025.146714","DOIUrl":"10.1016/j.electacta.2025.146714","url":null,"abstract":"<div><div>In this work we have synthesized two redox-active poly(ionic liquid) / ionic liquid (PIL/IL) solid-state electrolytes based on the 2,2,6,6- tetramethylpiperidine-1-oxyl (TEMPO) and anthraquinone active molecules. We first characterized the two electrolytes to better understand their electrochemical behavior in a three-electrode configuration utilizing thermally reduced graphene oxide (Tr-GO) as working electrodes. An asymmetric supercapacitor (full cell) was then assembled with two Tr-GO electrodes and each redox-active PIL/IL electrolyte in one semi-cell, according to their redox active potentials: TEMPO as the catholyte and anthraquinone as the anolyte. The biredox solid-state supercapacitor showed excellent performance, with 81.4 F g<sup>-1</sup> capacitance at 0.25 A g<sup>-1</sup>, and an energy density of 59.9 W h kg<sup>-1</sup>, placing this device among the best in the literature for solid devices based on non-aqueous redox electrolytes, especially at low current densities. The supercapacitor retained 82.9% of its initial capacitance after 3000 charge/discharge cycles. This work presents a great advancement for the field of energy storage in applications that demand leakage-free high energy density devices.</div></div>","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"536 ","pages":"Article 146714"},"PeriodicalIF":5.5,"publicationDate":"2025-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144288510","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

Silver decorated CuO-mesoporous graphitic carbon nitride as electrochemical sweat sensor for sensing ammonium ions: A membrane-free voltammetric approach 银修饰的介孔石墨氮化碳作为传感铵离子的电化学汗液传感器：一种无膜伏安方法

IF 5.5 3区材料科学

Electrochimica Acta Pub Date : 2025-06-14 DOI: 10.1016/j.electacta.2025.146716

Nikita J. Patil , Ramakrishnan Vishnuraj , Ganesh Kumar Mani , Murali Rangarajan , Parthasarathy Srinivasan

{"title":"Silver decorated CuO-mesoporous graphitic carbon nitride as electrochemical sweat sensor for sensing ammonium ions: A membrane-free voltammetric approach","authors":"Nikita J. Patil , Ramakrishnan Vishnuraj , Ganesh Kumar Mani , Murali Rangarajan , Parthasarathy Srinivasan","doi":"10.1016/j.electacta.2025.146716","DOIUrl":"10.1016/j.electacta.2025.146716","url":null,"abstract":"<div><div>Ammonium ions (NH<sub>4</sub><sup>+</sup>) detection in sweat is important for monitoring metabolic health and hydration levels, offering insights into physiological conditions. This study reported a membrane-free electrochemical sweat sensor based on Ag-CuO-MGCN nanocomposite for detecting NH<sub>4</sub><sup>+</sup> ions in artificial sweat. The sensor exhibited three linear ranges, 0.01 to 0.05 µM,0.05 to 1 µM, and 1 to 2000 µM with the LOD of 3.82 nM, 63.06 nM, and 0.28 µM for the three concentration ranges, respectively. Real-time recovery studies were conducted using artificial sweat, revealing repeatable and reproducible characteristics. In the probing of NH<sub>4</sub><sup>+</sup>ions, it is witnessed that the CuO gets complexed to <span><math><msup><mrow><mo>[</mo><mrow><mi>C</mi><mi>u</mi><msub><mrow><mo>(</mo><mi>N</mi><msub><mi>H</mi><mn>3</mn></msub><mo>)</mo></mrow><mn>4</mn></msub></mrow><mo>]</mo></mrow><mrow><mn>2</mn><mo>+</mo></mrow></msup></math></span><sup>,</sup> resulting in a decreasing trend in the reduction current. The introduction of Ag nanoparticles further supported this steep decrement in the reduction current, which correlates strongly and sensitively even to trace level detection of NH<sub>4</sub><sup>+</sup>ions. In addition, detecting NH<sub>4</sub><sup>+</sup>ions employing the paper screen printed electrode suggests the potentiality of the novel Ag-CuO-MGCN nanointerface in wearable sensing applications. Since the mechanism of NH<sub>4</sub><sup>+</sup>ions detection in the artificial sweat stands novel, this proof of concept study opens a way forward to advancing biosensing technologies for personalized health monitoring.</div></div>","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"535 ","pages":"Article 146716"},"PeriodicalIF":5.5,"publicationDate":"2025-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144288509","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 ZrO2 modified sulfonated poly (ether ether ketone) ion-exchange membrane for Iron-chromium redox flow battery application 高性能ZrO2改性磺化聚醚醚酮离子交换膜在铁铬氧化还原液流电池中的应用

IF 5.5 3区材料科学

Electrochimica Acta Pub Date : 2025-06-14 DOI: 10.1016/j.electacta.2025.146695

Qianqian Zeng , Xi Liu , Yang Liu , Qinghao Feng , Zhaohao Wang , Guanchen Liu , Xiaoyin Xie , Zhihai Liu

{"title":"High performance ZrO2 modified sulfonated poly (ether ether ketone) ion-exchange membrane for Iron-chromium redox flow battery application","authors":"Qianqian Zeng , Xi Liu , Yang Liu , Qinghao Feng , Zhaohao Wang , Guanchen Liu , Xiaoyin Xie , Zhihai Liu","doi":"10.1016/j.electacta.2025.146695","DOIUrl":"10.1016/j.electacta.2025.146695","url":null,"abstract":"<div><div>A high-performance ion-exchange membrane (IEM) for an iron-chromium redox flow battery (ICRFB) was fabricated by zirconium dioxide (ZrO<sub>2</sub>) with sulfonated poly (ether ketone) (SPEEK, with a degree of sulfonation: 57 %). A series of physical and chemical tests such as water uptake (WU), swelling ratio (SR), ion exchange capacity (IEC), proton conductivity, strength characteristics and permeability were performed. Additionally, it was notable that the ZrO<sub>2</sub> -SPEEK (Zr/S) IEM with the optimal reference ratio (7.5 %) showed higher coulombic efficiency (CE:97.74 %) and energy efficiency (EE:82.85 %) at 100 mA·cm<sup>−2</sup> than Nafion-212 IEM (CE:96.7 %, EE:82.55 %) and SPEEK-57 IEM (CE:96.86 %, EE:76.84 %) in the ICRFB single-cell test. In the first cycle, the Zr/S-7.5 % IEM delivered a higher discharge capacity (708 mAh) than the Nafion-212 IEM (508 mAh) and SPEEK-57 IEM (373 mAh). Moreover, the composite membrane could maintain 1.2 V open-circuit voltage for 56.5 h in the self-discharge experiment, surpassing Nafion-212 IEM (4.617 h) and SPEEK-57 IEM (14.783 h).</div></div>","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"535 ","pages":"Article 146695"},"PeriodicalIF":5.5,"publicationDate":"2025-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144279800","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

Preparation and catalytic performance of CoCuOx-C electrodes in wastewater treatment CoCuOx-C电极的制备及其在废水处理中的催化性能

IF 5.5 3区材料科学

Electrochimica Acta Pub Date : 2025-06-14 DOI: 10.1016/j.electacta.2025.146717

Lili Hu , Xiao Zhang , Xianheng Zhi , Yuling Zhang , Zhiqiang Zhang , Ming Li , Shuqin Wang

引用次数: 0