Journal of The Electrochemical Society最新文献_第8页

Review—Recent Advances in Fire-Suppressing Agents for Mitigating Lithium-Ion Battery Fires 回顾--用于缓解锂离子电池火灾的阻燃剂的最新进展

Journal of The Electrochemical Society Pub Date : 2024-06-10 DOI: 10.1149/1945-7111/ad5620

Fiza Majeed, Hasan Jamal, Urooj Kamran, Muhammad Noman, Muqaddas Muhammad Ali, Tahreem Shahzad, Mirza Mahmood Baig, Farid Akhtar

{"title":"Review—Recent Advances in Fire-Suppressing Agents for Mitigating Lithium-Ion Battery Fires","authors":"Fiza Majeed, Hasan Jamal, Urooj Kamran, Muhammad Noman, Muqaddas Muhammad Ali, Tahreem Shahzad, Mirza Mahmood Baig, Farid Akhtar","doi":"10.1149/1945-7111/ad5620","DOIUrl":"https://doi.org/10.1149/1945-7111/ad5620","url":null,"abstract":"\u0000 The rising energy density and widespread use of lithium-ion batteries (LIBs) pose a growing safety challenge, marked by the potential for fires and explosions. Given the unique combustion characteristics of LIBs, the need for efficient and prompt fire suppression is paramount. Here we explore the mechanisms and characteristics of LIBs fires, emphasizing the critical design principles for effective fire-extinguishing agents and evaluating various agents, including gaseous, dry powders, water-based, aerosol-based, and composite-based fire-extinguishing agents, elucidating their mechanisms and effectiveness in suppressing LIBs fires. Noteworthy agents such as C6F12O and water-based solutions are highlighted for their superior extinguishing and cooling capabilities. Water-based fire-extinguishing agents show promise, exhibiting superior cooling capacity and anti-flash properties. Despite certain limitations, the review underscores the necessity of identifying an ideal fire-extinguishing agent that is thermally conductive, electrically insulating, cost-effective, non-toxic, residue-free, and capable of absorbing toxic gases. We conclude by discussing perspectives and outlooks, emphasizing the synergy between the ideal agent and innovative extinguishing strategies to ensure the high safety standards of current and future LIB-based technologies.","PeriodicalId":509718,"journal":{"name":"Journal of The Electrochemical Society","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141361453","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Pioneering Microporous Layers for Proton-Exchange-Membrane Water Electrolyzers via Tape Casting 通过带浇铸技术为质子交换膜水电解器开发微孔层

Journal of The Electrochemical Society Pub Date : 2024-06-06 DOI: 10.1149/1945-7111/ad54f1

J. K. Lee, Grace Lau, Fengyu Shen, Anyka M. Bergeson-Keller, Xiong Peng, Mike Tucker

{"title":"Pioneering Microporous Layers for Proton-Exchange-Membrane Water Electrolyzers via Tape Casting","authors":"J. K. Lee, Grace Lau, Fengyu Shen, Anyka M. Bergeson-Keller, Xiong Peng, Mike Tucker","doi":"10.1149/1945-7111/ad54f1","DOIUrl":"https://doi.org/10.1149/1945-7111/ad54f1","url":null,"abstract":"\u0000 The imperative shift towards decarbonization necessitates the production of clean hydrogen through water electrolysis, powered by renewable energy sources. Among electrolyzer technologies, proton-exchange-membrane (PEM) systems emerge as a promising option for large-scale hydrogen generation due to their modular design and rapid response, aligning well with the intermittency of renewable energy. In this study, we employ a tape casting method to fabricate microporous layers (MPLs), both as a single layer and as a bilayer over commercial porous transport layers (PTLs), to further enhance performance of water electrolyzers. We demonstrate that microporous layers require adequate pore sizes to facilitate gas removal, preventing gas flooding and preserving electrolyzer performance. Our single layer microporous layers exhibit lower overpotentials compared to commercial sintered Ti PTLs by 142 mV at 4 A·cm⁻². Moreover, we show that having an effective microporous layer enhances electrolyzer performance irrespective of the substrate used, offering avenues for cost reduction. We also investigate novel PTL structures with reduced tortuosity and integrated MPL fabricated via phase inversion tape casting, resulting in a performance enhancement of 92 mV. Our findings unravel the critical role of microporous layer structures and their impact on electrolyzer performance.","PeriodicalId":509718,"journal":{"name":"Journal of The Electrochemical Society","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141376982","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Review—Electrochemical Sensors for Acetylcholine Detection 回顾-检测乙酰胆碱的电化学传感器

Journal of The Electrochemical Society Pub Date : 2024-06-05 DOI: 10.1149/1945-7111/ad546e

Shihzad Shakil, Dajing Yuan, Maoguo Li

引用次数: 0

Modeling Charging Current Dynamics at Microelectrodes and their Interfaces with Electrolyte and Insulators with a Focus on Microfabricated Gold Microband Electrodes on an SU-8 Substrate 微电极及其与电解质和绝缘体界面的充电电流动力学建模，重点关注 SU-8 基质上的微加工金微带电极

Journal of The Electrochemical Society Pub Date : 2024-06-05 DOI: 10.1149/1945-7111/ad546f

Miguel Angel Abrego Tello, Mahsa Lotfi Marchoubeh, Ingrid Fritsch

{"title":"Modeling Charging Current Dynamics at Microelectrodes and their Interfaces with Electrolyte and Insulators with a Focus on Microfabricated Gold Microband Electrodes on an SU-8 Substrate","authors":"Miguel Angel Abrego Tello, Mahsa Lotfi Marchoubeh, Ingrid Fritsch","doi":"10.1149/1945-7111/ad546f","DOIUrl":"https://doi.org/10.1149/1945-7111/ad546f","url":null,"abstract":"\u0000 The suitability of electrochemical methods for quantitative measurements at microdevices is influenced by the relatively large electrode-insulator interface-to-electrode area ratio, greatly impacting charging dynamics due to interactions among electrolyte and conductor/insulator materials. The resulting charging current can overwhelm the current from redox chemistry. The device studied here features a 70-µm×100-µm electroactive window, hosts gold coplanar microband electrodes, and is insulated by SU-8, which serves as both overlayer and substrate. The overlayer defines the electroactive length and isolates the leads of the electrodes from the sample solution. Cyclic voltammetry in 0.10 M KCl yields unexpected, nonlinear dependence of current on scan rate, which can be explained with two empirical approaches. The first employs an equivalent circuit, involving leakage resistance and double-layer capacitance in parallel, to address both background processes and electrode imperfections as a function of scan rate. The second associates the enhanced current to a changing-chargeable area resulting from interface irregularities. Prior publications on alternative conductor-insulator materials are benchmarked in this study. The comparison of the materials shows that charging dynamics for devices made with SU-8 lead to more favorable electrochemical performance than for those constructed with glass, epoxy, and silicon nitride, and under certain circumstances, polyimide and Tefzel.","PeriodicalId":509718,"journal":{"name":"Journal of The Electrochemical Society","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141385158","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Review—Modelling Catalyst Layer Performance in Device-Scale Polymer Electrolyte Membrane Fuel Cell Simulation 回顾--器件级聚合物电解质膜燃料电池模拟中的催化剂层性能建模

Journal of The Electrochemical Society Pub Date : 2024-06-04 DOI: 10.1149/1945-7111/ad5408

Edmund J.F. Dickinson, Oliver Rodríguez

引用次数: 0

Electrochemical Nicarbazin Analysis: Rapid Determination on Bucky Paper Disks Constructed from MWCNT 电化学尼卡巴嗪分析：在由 MWCNT 构建的巴基纸盘上进行快速测定

Journal of The Electrochemical Society Pub Date : 2024-06-04 DOI: 10.1149/1945-7111/ad541a

C. Lema, Alejandro Álvarez‐Lueje, R. Moscoso, Juan Squella

{"title":"Electrochemical Nicarbazin Analysis: Rapid Determination on Bucky Paper Disks Constructed from MWCNT","authors":"C. Lema, Alejandro Álvarez‐Lueje, R. Moscoso, Juan Squella","doi":"10.1149/1945-7111/ad541a","DOIUrl":"https://doi.org/10.1149/1945-7111/ad541a","url":null,"abstract":"\u0000 Nicarbazin, an anticoccidial drug, is a molecular complex comprising 4,4’-dinitrocarbanilide (DNC) and 2-hydroxy-4,6-dimethylpyrimidine (HDP) in a 1:1 molar ratio. The low solubility of DNC in water (below 0.02 mg/L) necessitates the use of extraction methods for analysis. Traditional DNC determination methods are time consuming, and involve prolonged sample preparation, extraction procedures, and high costs,. This study presents the results of electrochemical analysis of DNC using an innovative electrode platform composed of bucky paper disks made from a blend of multi-walled carbon nanotubes (MWCNT) and polystyrene (MWCNT/PS/BP). The electroanalytical approach includes an initial adsorption stage of DNC on the electrode platform, followed by its subsequent reduction, capitalizing on the reducibility of the nitro groups within DNC. The analytical parameters of this method are favorable, featuring an average recovery value of 100.22 ± 7.87, a linear range of 2.011-15.112 mgL-1, a sensitivity of 1.58 µAmg-1L, LOQ (limit of quantification) of 1.33 mg/L-1, and LOD (limit of detection) of 0.40 mgL-1.","PeriodicalId":509718,"journal":{"name":"Journal of The Electrochemical Society","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141265770","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","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 and 2D and 3D in Silico Redox Cycling Studies for Design Optimization of Coplanar Arrays of Microband Electrodes in a 70 µm × 100 µm Electroactive Footprint 进行原位、二维和三维硅学氧化还原循环研究，优化 70 微米 × 100 微米电活性基底中的共面微带电极阵列设计

Journal of The Electrochemical Society Pub Date : 2024-06-04 DOI: 10.1149/1945-7111/ad5409

Miguel Angel Abrego Tello, Mahsa Lotfi Marchoubeh, Ingrid Fritsch

{"title":"In Situ and 2D and 3D in Silico Redox Cycling Studies for Design Optimization of Coplanar Arrays of Microband Electrodes in a 70 µm × 100 µm Electroactive Footprint","authors":"Miguel Angel Abrego Tello, Mahsa Lotfi Marchoubeh, Ingrid Fritsch","doi":"10.1149/1945-7111/ad5409","DOIUrl":"https://doi.org/10.1149/1945-7111/ad5409","url":null,"abstract":"\u0000 Optimization of redox-cycling currents was performed by adjusting the height (sidewalls, h), width (w) ,and length (l) of band electrodes and their spacing (wgap) in coplanar arrays restricted to a small-electroactive window of 70 × 100 µm. These arrays can function in µL-volumes for chemical analysis (e.g., in vivo dopamine detection using probes). Experiments were conducted with an array of five electrodes (NE = 5), w = 4.3 µm, wgap = 3.7 µm, h = 0.150 µm, and l = 99.2 µm. Reasons for disparities between currents from experiments and approximate equations were determined by high-density mesh simulations and were found to arise from sluggish heterogeneous electron transfer kinetics and diffusion at electrode ends, edges, and heights. Ferricyanide, with its moderately slow kinetics, exhibits redox-cycling currents that fall below predictions by the equations as wgap decreases and diffusional flux outpaces reaction rates. Simulations aid investigations of various array designs, achievable through conventional photolithography, by decreasing w and wgap and increasing NE to fit within the electroactive window. A coplanar array, NE = 58, w = wgap = 0.6 µm, h = 0.150 µm and l = 100 µm, yielded ferricyanide sensitivities of 0.266, 0.259 nA·µM−1, enhancements of 8× and 9× over w = wgap = 4 µm, and projected dopamine limits of quantification of 139 nM, 171 nM at generator and collector electrodes, respectively","PeriodicalId":509718,"journal":{"name":"Journal of The Electrochemical Society","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141265465","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

One-Pot Electrodeposition of a PANI:PSS/MWCNT Nanocomposite on Carbon Paper for Scalable Determination of Ascorbic Acid 在碳纸上一锅电沉积 PANI:PSS/MWCNT 纳米复合材料以实现抗坏血酸的规模化测定

Journal of The Electrochemical Society Pub Date : 2024-06-04 DOI: 10.1149/1945-7111/ad541c

S. J. Robertson, Jinping Cheng, Minhua Shao

{"title":"One-Pot Electrodeposition of a PANI:PSS/MWCNT Nanocomposite on Carbon Paper for Scalable Determination of Ascorbic Acid","authors":"S. J. Robertson, Jinping Cheng, Minhua Shao","doi":"10.1149/1945-7111/ad541c","DOIUrl":"https://doi.org/10.1149/1945-7111/ad541c","url":null,"abstract":"\u0000 In recent years, there has been growing demand for the monitoring of ascorbic acid levels, especially in underdeveloped populations where ascorbic acid deficiency affects up to 74% of individuals. To facilitate widespread ascorbic acid screening, we have developed a highly scalable conductive polymer nanocomposite with excellent ascorbic acid sensing performance. The material is based on polyaniline, which is deposited in a single step in the presence of polystyrene sulfonate and multi-walled carbon nanotubes onto carbon paper. The modified electrodes take advantage of the electrocatalytic properties of polyaniline toward ascorbic acid, which are boosted by the proton donating polystyrene sulfonate polymer and the high surface area of the multi-walled carbon nanotubes. The morphology and composition of the composite are characterized using field-emission scanning electron microscopy, transmission electron microscopy, Raman spectroscopy, and X-ray photoelectron spectroscopy and the electrochemical characteristics are examined using cyclic voltammetry and electrochemical impedance spectroscopy. The modified electrode shows good ascorbic acid sensing characteristics, with a linear range of 1-400 µM, a sensitivity of 546 µA mM-1 cm-2, and a limit of detection of 0.11 µM. High performance and low cost results in a promising platform to support the widespread, cheap monitoring of ascorbic acid deficiency.","PeriodicalId":509718,"journal":{"name":"Journal of The Electrochemical Society","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141268166","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Novel Hybrid Copper-Based Electrode for Non-Enzymatic Electrochemical Lactic Acid Sensing in Milk Samples 用于牛奶样品中非酶电化学乳酸传感的新型混合铜基电极

Journal of The Electrochemical Society Pub Date : 2024-06-04 DOI: 10.1149/1945-7111/ad541e

Aroonsri Ngamaroonchote, Kullavadee Karn-orachai

{"title":"Novel Hybrid Copper-Based Electrode for Non-Enzymatic Electrochemical Lactic Acid Sensing in Milk Samples","authors":"Aroonsri Ngamaroonchote, Kullavadee Karn-orachai","doi":"10.1149/1945-7111/ad541e","DOIUrl":"https://doi.org/10.1149/1945-7111/ad541e","url":null,"abstract":"\u0000 A novel developed non-enzymatic electrochemical sensor was designed for the detection of lactic acid (LA) in perishable products, with a focus on monitoring milk spoilage. The sensor utilizes a hybrid copper-based electrode consisting of cuprous oxide (Cu2O), copper oxide (CuO), and copper hydroxide (Cu(OH)2), which collectively contribute to enhanced performance through their synergistic effects. Cyclic voltammetric studies revealed distinct oxidation peaks associated with LA detection, highlighting the superior catalytic effect of the Cu2O/CuO/Cu(OH)2 electrode compared to CuO alone. Further optimization of the metal loading on the electrode surface led to improve LA sensing properties. The sensor exhibited a wide linear response range (0.25-7 mM), high sensitivity (817.66 μA·mM−1·cm−2), and a low limit of detection (0.25 mM). Selectivity tests indicated negligible interference from common dairy product constituents, while stability tests showed consistent performance over a 3 week storage period (100% stability). The practical usability of the sensor was demonstrated through the quantitative analysis of LA in pasteurized milk, with recovery values ranging from 99.7% to 106.9%, confirming the feasibility of the sensor for real sample analysis. The developed multiphase copper-based electrode presents a promising platform for the sensitive and reliable detection of LA within the dairy industry.","PeriodicalId":509718,"journal":{"name":"Journal of The Electrochemical Society","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141268257","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Fast On-Site and Highly Sensitive Determination of Allura Red Using a Portable Electrochemical Platform Based on Poly(pyrrole) and Bimetallic Nanocomposites Anchored on Reduced Graphene Oxide 利用基于还原石墨烯氧化物的聚吡咯和双金属纳米复合材料的便携式电化学平台现场快速、高灵敏地测定艳红

Journal of The Electrochemical Society Pub Date : 2024-06-04 DOI: 10.1149/1945-7111/ad541b

Ramona Georgescu-State, J. V. van Staden, Raluca‐Ioana Stefan‐van Staden, R. State, Florica Papa

{"title":"Fast On-Site and Highly Sensitive Determination of Allura Red Using a Portable Electrochemical Platform Based on Poly(pyrrole) and Bimetallic Nanocomposites Anchored on Reduced Graphene Oxide","authors":"Ramona Georgescu-State, J. V. van Staden, Raluca‐Ioana Stefan‐van Staden, R. State, Florica Papa","doi":"10.1149/1945-7111/ad541b","DOIUrl":"https://doi.org/10.1149/1945-7111/ad541b","url":null,"abstract":"\u0000 Allura red (AR) is classified as an azo dye and is often used as a beverage and food additive. Nevertheless, the need for dose management of Allura red becomes especially important owing to the potential damage caused by the azo structure to the human body and the environment. In order to combat these problems, a novel portable electrochemical platform using a screen-printed carbon electrode (SPCE) that has been modified with poly(pyrrole) and Co-Ni bimetallic nanocomposites anchored on reduced graphene oxide (Co-Ni@rGO) was developed. The purpose of this platform is to enable rapid on-site and very sensitive determination of Allura red from carbonated energy beverages and water samples. Under ideal experimental conditions, the proposed platform's response exhibits a notable linear relationship with the concentration of Allura red within the range of 0.0001-10 µM, having a very low limit of detection (LOD) of 0.03 nM and a high sensitivity of 24.62 μA μM-1 cm-2. Furthermore, the PPy/Co-Ni@rGO/SPCE platform exhibited favorable characteristics in terms of reproducibility, repeatability, stability, and selectivity for the quantification of Allura red. Consequently, the developed platform was capable of practically and effectively determining the Allura red dye content from various real samples, showing satisfactory recovery rates.","PeriodicalId":509718,"journal":{"name":"Journal of The Electrochemical Society","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141266317","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0