Electrochimica Acta最新文献

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Revealing the complexation of 3-N,N-dimethylaminodithiocarbamoyl-1-propanesulfonic acid (DPS) with cuprous ion and its contribution to Cu electrodeposition 揭示 3-N,N-二甲基氨基二硫代氨基甲酰-1-丙磺酸 (DPS) 与亚铜离子的络合及其对铜电沉积的贡献
IF 5.5 3区 材料科学
Electrochimica Acta Pub Date : 2024-10-28 DOI: 10.1016/j.electacta.2024.145288
Jiseok Lee , Jihyun Kim , Sung Ki Cho , Jae Jeong Kim
{"title":"Revealing the complexation of 3-N,N-dimethylaminodithiocarbamoyl-1-propanesulfonic acid (DPS) with cuprous ion and its contribution to Cu electrodeposition","authors":"Jiseok Lee ,&nbsp;Jihyun Kim ,&nbsp;Sung Ki Cho ,&nbsp;Jae Jeong Kim","doi":"10.1016/j.electacta.2024.145288","DOIUrl":"10.1016/j.electacta.2024.145288","url":null,"abstract":"<div><div>An accelerator is an organic additive used in Cu electrodeposition, crucial for achieving superfilling during the fabrication of Cu interconnects in microelectronics. 3-<em>N,N</em>-dimethylaminodithiocarbamoyl-1-propanesulfonic acid (DPS) has been proposed and investigated as a substitute for SPS. However, its acceleration mechanism associated with its interaction with Cu ions has not been intensively investigated. In this study, the interaction between DPS and Cu<sup>+</sup> was investigated using various spectroscopic analyses, including ultraviolet–visible–near-infrared absorption (UV–VIS–NIR), electron paramagnetic resonance (EPR), and nuclear magnetic resonance (NMR) spectroscopy. UV–VIS–NIR and EPR spectroscopy revealed that DPS forms a complex with Cu<sup>+</sup>, namely Cu(I)(DPS)<sub>2</sub>. The kinetic study on the complexation of DPS with Cu<sup>+</sup> indicated second-order reaction characteristics. The structure of the complex was suggested using <sup>1</sup>H and <sup>13</sup>C NMR spectroscopy. Furthermore, electrochemical analyses, including cyclic voltammetry (CV) and linear sweep voltammetry (LSV), were conducted to investigate the electrochemical behaviors of the Cu(I)(DPS)<sub>2</sub> complex, demonstrating its acceleration effect on Cu electrodeposition. These results will provide valuable insights for understanding the acceleration mechanism of DPS in Cu electrodeposition.</div></div>","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"509 ","pages":"Article 145288"},"PeriodicalIF":5.5,"publicationDate":"2024-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142520043","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
Ion solvation modulating via Imidazolidinyl urea additive for stable Zn2+ deposition 通过咪唑烷基脲添加剂调节离子溶解度,实现稳定的 Zn2+ 沉积
IF 5.5 3区 材料科学
Electrochimica Acta Pub Date : 2024-10-28 DOI: 10.1016/j.electacta.2024.145287
Huanrong Liu , Yuqian Li , Chunhui Peng , Wenju Wang
{"title":"Ion solvation modulating via Imidazolidinyl urea additive for stable Zn2+ deposition","authors":"Huanrong Liu ,&nbsp;Yuqian Li ,&nbsp;Chunhui Peng ,&nbsp;Wenju Wang","doi":"10.1016/j.electacta.2024.145287","DOIUrl":"10.1016/j.electacta.2024.145287","url":null,"abstract":"<div><div>The development of energy conversion and storage equipment is a necessary guarantee for social development, and aqueous Zn-ion batteries have become a promising alternative to Li-ion batteries due to its high safety, environmental friendliness, and low cost. However, aqueous Zn-ion batteries suffer from the dendrite growth and parasitic reactions, which hinder the wide application of the batteries. In this paper, imidazolidinyl urea (IDU) is added to aqueous electrolytes because of the special structural properties of IDU. The effects of IDU as an additive on battery stability are elucidated through theoretical modelling, calculations, and experimental validation. Firstly, the effect of concentration on the ion transport properties of the electrolyte was obtained by modelling and calculating the Zn<sup>2+</sup> diffusion coefficient and ionic conductivity of electrolytes with different concentrations of IDU added. In addition, the optimal IDU addition concentration was achieved by verification of cycling experiments in Zn symmetric cells. Moreover, it was confirmed using in situ deposition experiments that the addition of IDU could participate in the coordination of Zn<sup>2+</sup> into the solvated layer of Zn<sup>2+</sup>, thereby accelerating the desolvation process of Zn<sup>2+</sup>, and further improving the uneven deposition of Zn on the negative electrode surface and the growth of dendrites. Finally, it was verified that the IDU addition could enhance the cycle life and stability of the battery, maintaining an efficiency of about 95 % and a specific capacity of discharge of 90 mAh·g<sup>-1</sup> after more than 1000 cycles in a full cell assembled from Zn flakes and improved iodine electrodes.</div></div>","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"508 ","pages":"Article 145287"},"PeriodicalIF":5.5,"publicationDate":"2024-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142519950","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
Methods for faster estimation of the entropy profile of a lithium-ion battery: A comparison of accelerated potentiometry and the estimation of entropy through thermal signatures 更快估算锂离子电池熵曲线的方法:加速电位计和通过热特征估算熵的比较
IF 5.5 3区 材料科学
Electrochimica Acta Pub Date : 2024-10-28 DOI: 10.1016/j.electacta.2024.145289
Jinsong Hua, Preben J.S. Vie, Julia Wind
{"title":"Methods for faster estimation of the entropy profile of a lithium-ion battery: A comparison of accelerated potentiometry and the estimation of entropy through thermal signatures","authors":"Jinsong Hua,&nbsp;Preben J.S. Vie,&nbsp;Julia Wind","doi":"10.1016/j.electacta.2024.145289","DOIUrl":"10.1016/j.electacta.2024.145289","url":null,"abstract":"<div><div>The operating temperature of a lithium-ion battery (LIB) has strong effects on its electrochemical performance, safety, and lifetime. Reliable predictions of cell temperature and heat generation rate are required for the design and thermal management of battery systems. The entropy variation of a LIB has a significant influence on the heat generation and the cell temperature variation, especially at a lower C-rate. Since the entropy is a function of State-of-Charge (SoC), and may change during ageing, the entropy profile may as well be used as an indicator for battery State-of-Health diagnostics. The present experimental methods, such as potentiometric or calorimetric methods, for determining the entropy variation throughout a battery's full SoC window are time-consuming and require specialized equipment with good thermal insulation and instrumentation. Hence, faster and more convenient methods are needed. In this paper, we compare an accelerated potentiometric method with a new entropy characterization method where the entropy profile is extracted from the thermal signature of a LIB during charge and discharge at low C-rates. The accelerated potentiometric method aims to obtain the entropy from thermal cycling while the cell is still not completely relaxed to its stable OCV. The thermal signature method monitors the variations of a cell's outer surface temperature during a low constant current charge or discharge, from which the continuous variation of entropy with SoC can be extracted. The obtained entropy profile was validated through a modeling approach that combines a P2D-electrochemical model for battery operation and a 3D-finite-element model for the thermal behavior during battery operation. Good agreement between the model predictions and experiments was achieved on the temporal variation of the cell's outer surface temperature.</div></div>","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"509 ","pages":"Article 145289"},"PeriodicalIF":5.5,"publicationDate":"2024-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142519627","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Construction of iodine-rich solid electrolyte interphase to achieve highly stable aqueous zinc-ion batteries 构建富碘固体电解质间相,实现高稳定性锌离子水电池
IF 5.5 3区 材料科学
Electrochimica Acta Pub Date : 2024-10-28 DOI: 10.1016/j.electacta.2024.145291
Zhuo Chen , Junrun Feng , Pengfei Yao , Jinlong Cai , Weihua Zhou , Jun Lu , Lun Zhang , Lin Sheng , Hao Gu , Feng Ryan Wang , Zhangxiang Hao
{"title":"Construction of iodine-rich solid electrolyte interphase to achieve highly stable aqueous zinc-ion batteries","authors":"Zhuo Chen ,&nbsp;Junrun Feng ,&nbsp;Pengfei Yao ,&nbsp;Jinlong Cai ,&nbsp;Weihua Zhou ,&nbsp;Jun Lu ,&nbsp;Lun Zhang ,&nbsp;Lin Sheng ,&nbsp;Hao Gu ,&nbsp;Feng Ryan Wang ,&nbsp;Zhangxiang Hao","doi":"10.1016/j.electacta.2024.145291","DOIUrl":"10.1016/j.electacta.2024.145291","url":null,"abstract":"<div><div>Aqueous zinc ion batteries (AZIBs) are considered highly potential secondary energy storage equipment for their higher energy density, lower risk, and affordability. However, parasitic reactions within the anode affect the Zn<sup>2+</sup> deposition behavior with uncontrollable dendrite formation significantly shortening the battery lifetime. For improvement of the Zn anode cycling stability, tetraethylammonium iodide (TEAI), a multifunctional additive was introduced into ZnSO<sub>4</sub>, which constructs an iodine-rich solid electrolyte interphase (SEI) on the zinc anode surface and significantly inhibits the parasitic reactions and nucleation of zinc dendrites. Furthermore, the TEAI also reshapes the solvation sheath of Zn<sup>2+</sup>, contributing to better transportation kinetics of zinc ions. Attributing to these functions, highly stable AZIBs are realized with the addition of TEAI, in which a stable cycling life of over 3500 h was achieved for symmetric Zn//Zn batteries under 1 mA cm<sup>-2</sup>. With higher current densities, the battery also exhibited excellent cycling stability over 3500 h. Full cells with the V<sub>2</sub>O<sub>5</sub> cathode were fabricated to examine the commercial availability of TEAI additives, achieving a high reversible discharge capacity of 381 mAh g<sup>-1</sup>, and the capacity of 102 mAh g<sup>-1</sup> was still maintained after 800 cycles at 1 A g<sup>-1</sup>.</div></div>","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"508 ","pages":"Article 145291"},"PeriodicalIF":5.5,"publicationDate":"2024-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142519629","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 preparation conditions on electrochemical formation of hydroxyapatite 制备条件对电化学形成羟基磷灰石的影响
IF 5.5 3区 材料科学
Electrochimica Acta Pub Date : 2024-10-28 DOI: 10.1016/j.electacta.2024.145292
Fatemeh Mohandes , Elvira Gómez , Albert Serrà
{"title":"Effect of preparation conditions on electrochemical formation of hydroxyapatite","authors":"Fatemeh Mohandes ,&nbsp;Elvira Gómez ,&nbsp;Albert Serrà","doi":"10.1016/j.electacta.2024.145292","DOIUrl":"10.1016/j.electacta.2024.145292","url":null,"abstract":"<div><div>Micro/nanostructures of hydroxyapatite (HAP) were electrochemically grown in an optimized electrolytic bath containing Ca(NO<sub>3</sub>)<sub>2</sub> and NH<sub>4</sub>H<sub>2</sub>PO<sub>4</sub> with Ca/P molar ratio of 1.67. To increase the local pH around the substrate and conductivity of the solution, H<sub>2</sub>O<sub>2</sub> and NaNO<sub>3</sub> were added to the electrolytic solution. Voltammetric analysis of the reagents disclosed the electroactive working potential range. The potentiostatic technique was selected as a suitable deposition method to obtain homogenous coatings of HAP by applying a potential of around -1.05 V in the presence of peroxide. Surface modification and functionalization of the as-deposited HAP coatings were carried out using alendronate (AL) solution in different concentrations <em>via</em> soaking and drop-casting methods. Successful chemical binding of AL molecules onto the HAP surface was demonstrated by the appearance of new peaks assigned to the -CH<sub>2</sub> vibrations and shift of PO<sub>4</sub><sup>3−</sup> vibrations in the Fourier transform infrared (FTIR) spectra. The AL-functionalized HAP coatings treated by fluorescein isothiocyanate (FITC) allowed to confirm the homogeneous distribution of AL molecules on the HAP surface. The surface-activated HAP coatings by AL can be introduced as multifunctional materials for future applications in drug delivery, bone regeneration and electrochemical biosensors.</div></div>","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"509 ","pages":"Article 145292"},"PeriodicalIF":5.5,"publicationDate":"2024-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142520040","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
Tailoring rGOCu-Cu2O as a three-dimensional catalytic system in boosting of methanol electro-oxidation reaction 定制 rGO-Cu-Cu2O 作为三维催化体系,用于促进甲醇电氧化反应
IF 5.5 3区 材料科学
Electrochimica Acta Pub Date : 2024-10-28 DOI: 10.1016/j.electacta.2024.145290
M. Kaleesh Kumar , Rehash Ranjan , Shailendra K. Jha
{"title":"Tailoring rGOCu-Cu2O as a three-dimensional catalytic system in boosting of methanol electro-oxidation reaction","authors":"M. Kaleesh Kumar ,&nbsp;Rehash Ranjan ,&nbsp;Shailendra K. Jha","doi":"10.1016/j.electacta.2024.145290","DOIUrl":"10.1016/j.electacta.2024.145290","url":null,"abstract":"<div><div>Tailoring a reduced graphene oxide-Cu-Cu<sub>2</sub>O (rGO<img>Cu-Cu<sub>2</sub>O) as a three-dimensional (3D) integrated catalytic system via an <em>in-situ</em> potential-controlled electrodeposition approach is a feasible pathway to boost methanol oxidation reaction (MOR) for direct methanol fuel cell. The enhancement in catalytic functionality and performances is due to the synergistic interaction between the <em>in-situ</em> electroreduced graphene oxide (rGO) and copper metal ions over it. The sequential and synergistic effect of the co-deposition potential, optimized time, and probable corrosion-promotion effect (formation of a galvanic cell between rGO and copper due to entrapped dissolved oxygen) is believed to be responsible for the structural growth of as-developed 3D catalytic systems. The MOR results suggest that the composite material deposited at the higher cathodic deposition potential (-1.2 V vs SCE), i.e., rGO<img>Cu (c) featured the remarkable lowest onset oxidation potential (i.e., +0.37 V), peak potential (i.e., +0.73 V), peak current density (135.76 mAcm<sup>−2</sup>), potentiostatic durability at +0.6 V after 3.5 h (∼65.85 mAcm<sup>−2</sup>) and outstanding cyclic stability (∼97.7 % current retention after 500 cycles), which is superior to the other modified composite electrodes. The enhanced performances are due to the effective dissociative adsorption of methanol from the available active catalytic site's and the presence of hydroxyl groups which has probably improved the oxidation of adsorbed intermediates from the surface. Further, Fourier-transform infrared (FT-IR) experiments revealed that formate as an active intermediate is being generated on all three rGO<img>Cu-Cu<sub>2</sub>O modified electrodes and follows the non-CO reaction pathway for direct oxidation of methanol.</div></div>","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"508 ","pages":"Article 145290"},"PeriodicalIF":5.5,"publicationDate":"2024-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142536370","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
Glucose oxidation on gold in alkaline solution: A DEMS and microkinetic modeling study 金在碱性溶液中的葡萄糖氧化作用:DEMS 和微动力学模型研究
IF 5.5 3区 材料科学
Electrochimica Acta Pub Date : 2024-10-28 DOI: 10.1016/j.electacta.2024.145269
Théo Faverge , Antoine Bonnefont , Marian Chatenet , Christophe Coutanceau
{"title":"Glucose oxidation on gold in alkaline solution: A DEMS and microkinetic modeling study","authors":"Théo Faverge ,&nbsp;Antoine Bonnefont ,&nbsp;Marian Chatenet ,&nbsp;Christophe Coutanceau","doi":"10.1016/j.electacta.2024.145269","DOIUrl":"10.1016/j.electacta.2024.145269","url":null,"abstract":"<div><div>The mechanism and kinetics of the electrochemical oxidation of glucose on gold surfaces in 0.1 M NaOH solution are investigated by rotating disk electrode and differential electrochemical mass spectrometry coupled to microkinetic modeling. For this purpose, the glucose mass-transport parameters (solution viscosity and density, glucose diffusion coefficient) were determined in the relevant conditions. Koutecký–Levich analysis of rotating disk electrode current-potential curves revealed that the glucose oxidation reaction (GOR) follows a one-electron mechanism at 0.6 V <em>vs</em> RHE, while H<sub>2</sub> production could be evidenced by DEMS in this potential range. This suggests that the glucose oxidation selectively produces gluconate at 0.6 V <em>vs</em> RHE through an electrochemical oxidative dehydrogenation (EOD) mechanism. A microkinetic model of the current-potential curves was developed, taking into account the hydrogen electrode reactions kinetics, the dissociative adsorption/desorption of glucose, and the glucose electrooxidation on gold surfaces. The dissociative adsorption of glucose was found to be the rate-determining step of the reaction. It is also revealed that the release of anodic H<sub>2</sub> through the Tafel step is triggered by the consumption of the adsorbed reaction intermediates. The gluconate electrooxidation into further products has to be considered for potential above 0.7 V <em>vs</em> RHE.</div></div>","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"508 ","pages":"Article 145269"},"PeriodicalIF":5.5,"publicationDate":"2024-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142519626","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Microwave-assisted hydrothermal synthesis of αβ-Ni(OH)2 nanoflowers on nickel foam for ultra-stable electrodes of supercapacitors 微波辅助水热法合成泡沫镍上αβ-Ni(OH)2 纳米花,用于超级电容器的超稳定电极
IF 5.5 3区 材料科学
Electrochimica Acta Pub Date : 2024-10-25 DOI: 10.1016/j.electacta.2024.145284
Muhammad Saleem Akhtar, Tomasz Wejrzanowski, Gabriela Komorowska, Bogusława Adamczyk-Cieślak, Emilia Choinska
{"title":"Microwave-assisted hydrothermal synthesis of αβ-Ni(OH)2 nanoflowers on nickel foam for ultra-stable electrodes of supercapacitors","authors":"Muhammad Saleem Akhtar,&nbsp;Tomasz Wejrzanowski,&nbsp;Gabriela Komorowska,&nbsp;Bogusława Adamczyk-Cieślak,&nbsp;Emilia Choinska","doi":"10.1016/j.electacta.2024.145284","DOIUrl":"10.1016/j.electacta.2024.145284","url":null,"abstract":"<div><div>Transition metal hydroxides (TMHs) are considered promising materials for supercapacitors because of their high theoretical capacitance and tunable morphology. Among TMHs, nickel hydroxide stands out for its multiple oxidation states, facilitating charge storage. This paper reports on a novel microwave-assisted hydrothermal technique employed to synthesize mixed-phase nickel hydroxide nanoflowers directly at the surface of nickel foam substrates with improved electrochemical stability compared to pure phases of nickel hydroxide. The analysis of nickel hydroxide in different phases alpha, beta and mixed-phase materials using physiochemical techniques like XRD, SEM, EDX, RAMAN, FT-IR and TGA is explained. The areal capacitance calculated from GCD tests for α-Ni(OH)<sub>2</sub>, β-Ni(OH)<sub>2</sub> and αβ-Ni(OH)<sub>2</sub> is estimated 7.35 F/cm<sup>2</sup>, 2.66 F/cm<sup>2</sup> and 5.12 F/cm<sup>2</sup> at a current density of 10 mAcm<sup>−2</sup>. The mass-specific capacitance calculated from GCD tests for α-Ni(OH)<sub>2</sub>, β-Ni(OH)<sub>2</sub> and αβ-Ni(OH)<sub>2</sub> is estimated 2311 Fg<sup>−1</sup>, 688 Fg<sup>−1</sup> and 1511 Fg<sup>−1</sup> at a current density of 10 mAcm<sup>−2</sup>. The cyclic stability test revealed the superior cycling performance of nickel hydroxide in mixed-phase as the cathode of an ultralong supercapacitor with nearly 100 % capacitance retention after 5000 cycles at 50 mAcm<sup>−2</sup>. The proposed synthesis technique advances the efficiency and control of nanostructure geometry, providing insights into the design for electrodes of extreme-performance supercapacitors. However, conventional synthesis methods are time-consuming and energy-intensive. These findings underscore the potential of mixed-phase nickel hydroxide as an outstanding electrode material with extended cyclic performance for supercapacitors, contributing to the improvement of energy storage technologies in the renewable energy landscape.</div></div>","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"508 ","pages":"Article 145284"},"PeriodicalIF":5.5,"publicationDate":"2024-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142489319","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Rectification of high-frequency artifacts in EIS data of three-electrode Li-ion cells 纠正三电极锂离子电池 EIS 数据中的高频伪影
IF 5.5 3区 材料科学
Electrochimica Acta Pub Date : 2024-10-24 DOI: 10.1016/j.electacta.2024.145266
Arup Chakraborty, Tazdin Amietszajew
{"title":"Rectification of high-frequency artifacts in EIS data of three-electrode Li-ion cells","authors":"Arup Chakraborty,&nbsp;Tazdin Amietszajew","doi":"10.1016/j.electacta.2024.145266","DOIUrl":"10.1016/j.electacta.2024.145266","url":null,"abstract":"<div><div>The use of a reference electrode and the analysis of Electrochemical Impedance Spectroscopy (EIS) data recorded in three-electrode configuration are beneficial for understanding the underlying electrochemical reaction mechanisms in Li-ion batteries. However, analysis of EIS data recorded both in two-electrode and especially three-electrode configurations is prone to misinterpretation due to presence of unidentified artifacts. Using the commercially available instrument (Biologic VMP3), EIS data is recorded simultaneously for both working and counter electrodes in three-electrode five-wire configuration and are algebraically summed to obtain the data for two-electrode configuration. This data is then compared to that recorded in two-electrode configuration. This arrangement of instrument helps in identifying the otherwise hidden and anomalous features, such as a high-frequency arc and extended solid electrolyte interphase (SEI) region, in the three-electrode configuration and the reason for their absence in the two-electrode configuration. Moreover, these additional features are found State-of-Charge (SoC) i.e., cell-electrochemistry dependent and can be highly influenced by the resistance of current/potential measuring leads. Additionally, a new methodology is established to rectify the EIS data and obtain ‘artifact-free’ electrochemical data.</div></div>","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"508 ","pages":"Article 145266"},"PeriodicalIF":5.5,"publicationDate":"2024-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142488691","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Impact of microelectrode geometry and surface finish on enzymatic biosensor performance 微电极几何形状和表面处理对酶生物传感器性能的影响
IF 5.5 3区 材料科学
Electrochimica Acta Pub Date : 2024-10-24 DOI: 10.1016/j.electacta.2024.145270
Jian Xu , Marco Fratus , Ankit Shah , James K. Nolan , Jongcheon Lim , Chi Hwan Lee , Muhammad A. Alam , Hyowon Lee
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