Lukman Ahmed Omeiza , Md. Mosfiqur Rahman , Kairat A. Kuterbekov , Asset Kabyshev , Kenzhebatyr Bekmyrza , Marzhan Kubenova , Mahendra Rao Somalu , Saifullah Abu Bakar , Abul Kalam Azad
{"title":"Novel sr-doped NdMn0.5Cr0.5O3-δ electrodes for symmetrical solid oxide fuel cell","authors":"Lukman Ahmed Omeiza , Md. Mosfiqur Rahman , Kairat A. Kuterbekov , Asset Kabyshev , Kenzhebatyr Bekmyrza , Marzhan Kubenova , Mahendra Rao Somalu , Saifullah Abu Bakar , Abul Kalam Azad","doi":"10.1016/j.elecom.2024.107730","DOIUrl":"https://doi.org/10.1016/j.elecom.2024.107730","url":null,"abstract":"<div><p>Solid oxide fuel cells (SOFCs) have emerged as promising energy conversion devices, offering high efficiency and environmental sustainability. Efficient electrode materials are crucial for the overall cell performance of SOFCs. Perovskite type Nd<sub>1-x</sub>Sr<sub>x</sub>Mn<sub>0.5</sub>Cr<sub>0.5</sub>O<sub>3-δ</sub> (x = 0.25, 0.5) (NSCM25, NSCM50) was synthesized via conventional solid-state reaction technique. Structural, thermal and electrochemical characterizations were performed using X-ray diffraction, thermogravimetric analysis, conductivity measurements, scanning electron microscope, thermal expansion coefficient analysis and impedance spectroscopy. Structural analysis revealed that both compositions exhibit orthorhombic symmetry in the Pbnm space group. Thermogravimetric analysis (TGA) indicated minimal weight changes in both pre-reduced and as-prepared samples. The electrical conductivities in air at 600 ℃ were found to be 1.69 S/cm for NSCM25 and 4.91 S/cm for NSCM50, with a decrease observed under reduced oxygen partial pressure. Polarization resistance (<em>R</em><sub>p</sub>) analysis was conducted on symmetrical cells composed of NSCM25|GDC|NSCM25, NSCM50|GDC|NSCM50, NSCM25|YSZ|NSCM25, and NSCM50|YSZ|NSCM50. At 900 ℃, the polarization resistances were 0.12 Ωcm<sup>2</sup>, 0.21 Ωcm<sup>2</sup>, 0.11 Ωcm<sup>2</sup>, and 0.67 Ωcm<sup>2</sup>, respectively. The results suggest that NSCM25 and NSCM50 hold promise as electrode materials for symmetrical solid oxide fuel cells (SSOFC) employing YSZ or GDC electrolyte.</p></div>","PeriodicalId":304,"journal":{"name":"Electrochemistry Communications","volume":"164 ","pages":"Article 107730"},"PeriodicalIF":5.4,"publicationDate":"2024-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1388248124000730/pdfft?md5=3c2a03bd3928aa822fc231cf0a986a70&pid=1-s2.0-S1388248124000730-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140554364","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"An autonomous self-healing mechanism to improve the chemical durability vs. moisture of PVDF-based gel electrolytes for lithium-ion batteries","authors":"Eleonora Carena , Caterina Colombo , Chiara Ferrara , Riccardo Ruffo , Piercarlo Mustarelli","doi":"10.1016/j.elecom.2024.107728","DOIUrl":"https://doi.org/10.1016/j.elecom.2024.107728","url":null,"abstract":"<div><p>Lithium-ion batteries (LIBs) are at the forefront of electrochemical energy storage both for consumer electronics, and for power/energy more demanding applications, such as in automotive and grid levelling. However, their chemical and electrochemical stability must be further improved. Among the instability causes, a major role is played by residual moisture. As a matter of fact, hydrofluoric acid generated by hydrolysis of LiPF<sub>6</sub>, the most common lithium salt in LIBs, causes safety issues and performance losses. Here we demonstrate the scavenging properties vs. HF of a barium silicate glass used as a filler in a PVDF-HFP based gel polymer electrolyte. A full LiTi<sub>2</sub>(PO<sub>4</sub>)<sub>3</sub>|electrolyte|LiMn<sub>2</sub>O<sub>4</sub> cell is stable for 200 cycles at 0.1C.</p></div>","PeriodicalId":304,"journal":{"name":"Electrochemistry Communications","volume":"164 ","pages":"Article 107728"},"PeriodicalIF":5.4,"publicationDate":"2024-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1388248124000717/pdfft?md5=c37f6f848380254b2f70dbc5fa0391c3&pid=1-s2.0-S1388248124000717-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140554365","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Tara N. Barwa , Luke Glennon , Daniele Alves , Yiran Lou , Eithne Dempsey , Carmel B. Breslin
{"title":"Simple dispersion of carbon nanofibers in a naturally occurring polyphenol in water and their electrochemical characteristics","authors":"Tara N. Barwa , Luke Glennon , Daniele Alves , Yiran Lou , Eithne Dempsey , Carmel B. Breslin","doi":"10.1016/j.elecom.2024.107727","DOIUrl":"https://doi.org/10.1016/j.elecom.2024.107727","url":null,"abstract":"<div><p>Carbon nanofibers are hydrophobic with poor dispersion in water. They are normally functionalised using highly acidic solutions and elevated temperatures. In this communication, we show that tannic acid can be employed at room temperature using a simple sonication method to give very good dispersions of the CNFs in distilled water. Using a factorial design, the three components, the sonication period, the concentration of tannic acid and the concentration of CNFs were found to be significant, while the concentration of the tannic acid as a single component had an equally significant effect. The optimum conditions were 1.0–1.25 mg mL<sup>−1</sup> of CNFs, and 0.85 – 1.0 mM of tannic acid with a sonication period between 50 and 60 min. The well-dispersed CNFs exhibited very good electrochemical characteristics, with efficient electron transfer in the oxidation of acetaminophen, which was used as a model analyte.</p></div>","PeriodicalId":304,"journal":{"name":"Electrochemistry Communications","volume":"163 ","pages":"Article 107727"},"PeriodicalIF":5.4,"publicationDate":"2024-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1388248124000705/pdfft?md5=c54736d0c55c2df710a56d99190cc35f&pid=1-s2.0-S1388248124000705-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140539665","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Surface coating engineering of prelithiation cathode additives for lithium-ion batteries","authors":"Ying Sun , Jingjing Zhang , Tao Huang , Aishui Yu","doi":"10.1016/j.elecom.2024.107726","DOIUrl":"https://doi.org/10.1016/j.elecom.2024.107726","url":null,"abstract":"<div><p>The active lithium ions loss during the initial charge and discharge process of lithium ion batteries seriously hampers its increasement of energy density. Pre-lithiation, involving the pre-storage of active lithium ions prior to cycling, emerges as a promising and effective strategy to offset this loss. Li<sub>6</sub>CoO<sub>4</sub> has been identified as a candidate capable of releasing adequate lithium ions to compensate for such loss. However, its poor air stability renders it susceptible to side reactions in the atmosphere, leading to the formation of residual lithium and consequently affecting its electrochemical performance. In this study, we propose application of a lithium aluminate (LiAlO<sub>2</sub>) coated onto the surface of lithium cobalt oxide (Li<sub>6</sub>CoO<sub>4</sub>) to mitigate the presence of residual lithium. Meanwhile, with decreasing of residual lithium, the rate capability is also enhanced. The research results demonstrate that samples treated with this coating layer exhibit an enhanced energy density in the full cell, indicating the efficacy of this approach in optimizing the electrochemical performance of prelithiation additives.</p></div>","PeriodicalId":304,"journal":{"name":"Electrochemistry Communications","volume":"163 ","pages":"Article 107726"},"PeriodicalIF":5.4,"publicationDate":"2024-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1388248124000699/pdfft?md5=f4058dd85e3686321b98dfcb68d1ce1a&pid=1-s2.0-S1388248124000699-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140536465","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Weitao Gao , Jiapeng Lu , Jiayi Chen , Lingyun Zhang , Zeping Zhang , Yijie Lei , Hongwu Ouyang , Yanan Yin , Cheng Wang
{"title":"Electrospun catalyst layers using short-side-chain ionomer for low platinum and high performance PEMFCs","authors":"Weitao Gao , Jiapeng Lu , Jiayi Chen , Lingyun Zhang , Zeping Zhang , Yijie Lei , Hongwu Ouyang , Yanan Yin , Cheng Wang","doi":"10.1016/j.elecom.2024.107718","DOIUrl":"https://doi.org/10.1016/j.elecom.2024.107718","url":null,"abstract":"<div><p>Proton exchange membrane fuel cells (PEMFCs) should further reduce the platinum consumption to lower their manufacturing costs and life-cycle carbon emissions. However, the performance of the catalyst layers with low-Pt loading needs to be improved. Short-side-chain (SSC) ionomers have been proven to enhance the catalytic activity of conventional catalyst layers. In this work, the SSC ionomer was applied to the electrospun catalyst layer, and achieved a remarkable improvement in the performance. With the use of commercially available catalyst, the membrane electrode assemblies (MEAs) prepared in this work exhibited a low total-Pt-consumption of 0.064 g kW<sup>−1</sup> (stoichiometric ratios of 1.5/2.5 for H<sub>2</sub>/air, 80°C, 100 kPa) and achieved the 2025 target proposed by the US Department of Energy. Separating activation, ohmic, and concentration overpotentials, the performance enhancement of the electrospun catalyst layer mainly came from the decrease of ohmic overpotential and concentration overpotential. The electrospun ionomer membrane without catalyst was used as a research model to explore the proton transport properties inside the electrospun catalyst layer. The results showed that in the range of PEMFC operating temperature, the proton conductivity of the electrospun catalyst layer could be higher, but meanwhile the proton-conduction activation energy was also elevated. Compared with the conventional catalyst layer, the electrospun catalyst layer showed obviously better performance before and after accelerated stress test, thus verifying the practicality of the electrospun catalyst layers. This work provided a reference for the development of low platinum and high performance catalyst layers.</p></div>","PeriodicalId":304,"journal":{"name":"Electrochemistry Communications","volume":"163 ","pages":"Article 107718"},"PeriodicalIF":5.4,"publicationDate":"2024-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1388248124000614/pdfft?md5=0fe7592561a60e4b965e4bc6daef2271&pid=1-s2.0-S1388248124000614-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140341473","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Equivalent circuit for assessing pore size distribution in porous electrodes by EIS","authors":"Anna Plis, Piotr Połczyński, Rafał Jurczakowski","doi":"10.1016/j.elecom.2024.107716","DOIUrl":"10.1016/j.elecom.2024.107716","url":null,"abstract":"<div><p>The size, geometry and arrangement of pores can significantly affect both the activity of electrocatalysts and the performance of supercapacitors. Electrochemical impedance spectroscopy (EIS) is a powerful, non-invasive diagnostic tool for characterizing porous conductive media. To date, the impedance of porous electrodes characterized by the distribution of pore sizes has been described only on the basis of numerical models. Here, for the first time, the impedance of such systems is provided in the form of analytical solutions valid in high and low frequency range. The model enables traditional equivalent circuit fitting to impedance of electrodes characterized by log–normal distribution of pore sizes. The analytical expressions for the circuit elements give access to the electrode idealized geometry in terms of log-normal distribution. The model was applied for the analysis of the electrochemical impedance of activated carbon electrode in a sulphuric acid solution. The width of pore size distribution, mean pore radius, pore length and the number of pores can be determined from a single impedance spectrum.</p></div>","PeriodicalId":304,"journal":{"name":"Electrochemistry Communications","volume":"164 ","pages":"Article 107716"},"PeriodicalIF":5.4,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1388248124000596/pdfft?md5=b5f9d99f42bfb5ebf947e46ef475c1e9&pid=1-s2.0-S1388248124000596-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140788335","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Breaking boundaries in Electrochemistry: Unveiling a new dimensionless number to tackle convective transfer effect on the voltamperometric answer","authors":"Guillaume Hopsort , Cheikhou Kane , Fabien Chauvet , Laure Latapie , Theodore Tzedakis","doi":"10.1016/j.elecom.2024.107706","DOIUrl":"https://doi.org/10.1016/j.elecom.2024.107706","url":null,"abstract":"<div><p>This study introduces the Theokane number (<span><math><msub><mi>T</mi><mi>k</mi></msub></math></span>) as a groundbreaking dimensionless number in Electrochemistry. <span><math><msub><mi>T</mi><mi>k</mi></msub></math></span> enables the determination of the operating state of an electrochemical (EC) system—indicating whether it is in a transient state (characteristic of cyclic voltammetry) or a steady state (typical of linear sweep voltammetry)—based on a given combination of potential scan rate and residence time. It aims to bridge the gap between various voltamperometric methods. <span><math><msub><mi>T</mi><mi>k</mi></msub></math></span> uniquely compares the duration of the potential scan applied to an EC system to the residence time of the reaction mixture at the electrode. This comparison is pertinent in environments ranging from microfluidic setups to macroscale reactors, including stirred vessels.</p><p><span><math><msub><mi>T</mi><mi>k</mi></msub></math></span> is particularly crucial for understanding the ‘continuous answer’ of an EC system subjected to voltamperometric polarization across a spectrum of potential scan and stirring rates. Voltammograms recorded in a micro-reactor under varying conditions highlight the influence of operating parameters on EC responses. The approach introduced in this study accomplish three key objectives: <em>i)</em> it validates the <span><math><msub><mi>T</mi><mi>k</mi></msub></math></span> number through the comparison of experimental and simulation data, <em>ii)</em> it proposes a range for its applicability; and <em>iii)</em> it opens a new mode for analyzing EC responses. It is important to note that <span><math><msub><mi>T</mi><mi>k</mi></msub></math></span> is applicable to both quasi-reversible and irreversible systems.</p></div>","PeriodicalId":304,"journal":{"name":"Electrochemistry Communications","volume":"163 ","pages":"Article 107706"},"PeriodicalIF":5.4,"publicationDate":"2024-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1388248124000493/pdfft?md5=fbc1939d0afd6c2a9c9740be36e8f2c6&pid=1-s2.0-S1388248124000493-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140290300","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yunhui Liu , Haoxuan Huang , Gangyi Xiong, Shurui Li, Yalan Xing, Shichao Zhang
{"title":"3D hierarchical porous current collector via deposition-dealloying method for lithium metal anode","authors":"Yunhui Liu , Haoxuan Huang , Gangyi Xiong, Shurui Li, Yalan Xing, Shichao Zhang","doi":"10.1016/j.elecom.2024.107702","DOIUrl":"https://doi.org/10.1016/j.elecom.2024.107702","url":null,"abstract":"<div><p>In order to inhibit dendritic growth and improve the cycle stability of lithium metal anodes (LMAs), a 3D Nanoporous Nickel Foam (NP-NF) collector with hierarchical porous structure is designed through a simple modification strategy of Ni Foam (NF). The strategy only involves two steps, i.e. electrodeposition of metal zinc and chemical dealloying to evolve nanoporous structure. The obtained NP-NF possesses hierarchical pores. The large pores of several hundreds of micrometers from Ni foam could facilitate fast Li<sup>+</sup> transport in dynamics. The mesopores on the surface of 100 nm to 1 μm could provide spatial confinement for Li deposition. The increased specific surface area could also reduce the local current density of electrode and consequently suppress the growth of dendrites. In addition, the in-situ formed lithophilic NiO on the 3D NP-NF surface can uniformly induce Li<sup>+</sup> deposition. Compared to the Ni foam skeleton, 3D NP-NF in LMAs presents a significantly improved Li plating/string stability with a high Coulombic efficiency of 95 % after 350 cycles with plating capacity of 1 mAh cm<sup>−2</sup> at a current density of 1 mA cm<sup>−2</sup>. 3D NP-NF@Li|Li cell shows an ultra-low overpotential of 18 mV during the 500 cycles (1000 h) at a current density of 1 mA cm<sup>−2</sup>. The 3D NP-NF@Li|LiFePO<sub>4</sub> can stably cycle for 300 times with the capacity retention of above 80 % at 1C. This work demonstrates that constructing a micro-nano 3D porous structure collector can inhibit dendritic growth and improve lifespan of LMAs.</p></div>","PeriodicalId":304,"journal":{"name":"Electrochemistry Communications","volume":"163 ","pages":"Article 107702"},"PeriodicalIF":5.4,"publicationDate":"2024-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1388248124000456/pdfft?md5=c6abefb655bce4107d468213b447c5f0&pid=1-s2.0-S1388248124000456-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140295974","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jinhee Lee , Ji-Yoon Jeong , Jaeyun Ha , Yong-Tae Kim , Jinsub Choi
{"title":"Understanding solid electrolyte interface formation on graphite and silicon anodes in lithium-ion batteries: Exploring the role of fluoroethylene carbonate","authors":"Jinhee Lee , Ji-Yoon Jeong , Jaeyun Ha , Yong-Tae Kim , Jinsub Choi","doi":"10.1016/j.elecom.2024.107708","DOIUrl":"https://doi.org/10.1016/j.elecom.2024.107708","url":null,"abstract":"<div><p>This study explores how fluoroethylene carbonate (FEC) influences the solid electrolyte interface (SEI) layer formation during battery cycling process. FEC improves SEI properties, producing a uniform, chemically stable layer enriched with lithium fluoride. This enhances mechanical resilience and electrochemical stability. FEC also suppresses electrolyte deformation and decomposition, maintaining its initial state. The findings highlight the significance and comprehension of electrolyte additives, offering an electrolyte research pathway for improving Li-ion battery performance and durability.</p></div>","PeriodicalId":304,"journal":{"name":"Electrochemistry Communications","volume":"163 ","pages":"Article 107708"},"PeriodicalIF":5.4,"publicationDate":"2024-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1388248124000511/pdfft?md5=1976aa3e148e4b797cf68f5f3bf32f4d&pid=1-s2.0-S1388248124000511-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140321604","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Maksimiljan Dekleva , Marija Kovačević , Ema Gričar , Mitja Kolar , Boštjan Genorio , Barbara Repič , Danjela Kuščer , Helena Prosen , Gregor Marolt
{"title":"An innovative pretreatment protocol to eliminate silver contamination-induced voltammetric interference on graphite-glass working electrode","authors":"Maksimiljan Dekleva , Marija Kovačević , Ema Gričar , Mitja Kolar , Boštjan Genorio , Barbara Repič , Danjela Kuščer , Helena Prosen , Gregor Marolt","doi":"10.1016/j.elecom.2024.107707","DOIUrl":"10.1016/j.elecom.2024.107707","url":null,"abstract":"<div><p>In the last decades, a significant amount of research has been focused on the development of miniaturized and portable electrochemical sensors in the form of screen-printed electrodes (SPEs). When performing voltammetric measurements using SPEs, especially in the case of carbon-based electrodes, additional peaks can appear and overlap with analytes’ signals or otherwise interfere with results. Therefore, the development of pretreatment methods that enable the removal of interferences is of great importance for SPEs utilization, e.g. for sensor applications. Moreover, electrode pretreatment can also be used to improve electron transfer kinetics, including reversibility of the studied redox processes. In this work, we present the evaluation of different pretreatment methods using cyclic voltammetry and potentiostatic anodization, applied on an in-house graphite-glass composite working electrodes. With the use of X-ray photoelectron spectroscopy and scanning electron microscopy it was confirmed that the surface of working electrode was contaminated by sub-micrometer sized silver particles, which resulted in two interference peaks. Several strong acids, including H<sub>2</sub>SO<sub>4</sub>, HNO<sub>3</sub>, and HCl, as well as phosphate buffer solution, were evaluated as electrolytes for electrochemical pretreatment. A rapid, simple, and low-cost pretreatment protocol that enables the removal of the interference peaks, as well as improved voltammetric signals for [Fe(CN)<sub>6</sub>]<sup>3−/4−</sup> redox probe was developed. We propose the optimal pretreatment method in H<sub>2</sub>SO<sub>4</sub> as a protocol that could be universally applied for carbon, carbon-glass, or similar types of SPEs before performing voltammetric experiments and/or further modifications of SPEs.</p></div>","PeriodicalId":304,"journal":{"name":"Electrochemistry Communications","volume":"162 ","pages":"Article 107707"},"PeriodicalIF":5.4,"publicationDate":"2024-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S138824812400050X/pdfft?md5=8d0be449a3c2d38bc732b50c94bd28d3&pid=1-s2.0-S138824812400050X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140281462","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}