Electrochemistry Communications最新文献

{"title":"Modification of platinum surfaces with cerium species for promoting oxidative desorption of adsorbed sulfur","authors":"Tetsuro Morooka ,&nbsp;Tamao Shishido ,&nbsp;Takuya Nakanishi ,&nbsp;Takuya Masuda","doi":"10.1016/j.elecom.2025.108050","DOIUrl":"10.1016/j.elecom.2025.108050","url":null,"abstract":"<div><div>Adsorption of sulfur (S) significantly reduces the electrochemically active surface area of platinum (Pt) electrocatalysts in polymer electrolyte membrane fuel cells (PEMFCs), namely, S poisoning. Mitigation techniques against S poisoning are strongly desired for highly durable PEMFCs. A Pt single-crystal surface was demonstrated to be modified with cerium (Ce) species by being immersed in a Ce-containing aqueous solution with hydrogen (H₂) gas bubbling or potential holding at −0.2 V vs. Ag/AgCl. For a Ce-free Pt electrode, electrochemical responses characteristic of the adsorption/desorption of hydrogen and hydroxyl species at the bare Pt surface disappeared due to the adsorbed elemental sulfur, S_ad, while the oxidative desorption of S_ad from the Pt electrode occurred at around 0.80 V vs. Ag/AgCl. In contrast, for the Ce-modified Pt electrode, the oxidative desorption of S_ad occurred at a potential around 0.3 V which is less positive (more negative) than that of Ce-free Pt electrode, showing the enhanced oxidative desorption capability due to the presence of Ce species on the surface. While the Ce species was desorbed from the Pt electrode simultaneously with the oxidative desorption of S_ad, the Pt surface can be re-modified with the Ce species by H₂ gas bubbling or potential holding at −0.2 V vs. Ag/AgCl, which is a similar condition to that of anode of PEMFC under operations. Thus, the Ce-modification of Pt surfaces potentially acts as a practical mitigation measure against the S poisoning.</div></div>","PeriodicalId":304,"journal":{"name":"Electrochemistry Communications","volume":"180 ","pages":"Article 108050"},"PeriodicalIF":4.2,"publicationDate":"2025-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145119219","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"High accuracy parameter estimation of solid oxide fuel cells using a surrogate assisted differential evolution with multi sampling mechanism","authors":"Anil Parmar ,&nbsp;Mohammad Aljaidi ,&nbsp;Sanjeev Maheshwari ,&nbsp;Arpita ,&nbsp;Pradeep Jangir ,&nbsp;Reena Jangid ,&nbsp;Sandeep Kumar ,&nbsp;Gaurav Kumar ,&nbsp;Richa Rani ,&nbsp;Mohammad Khishe","doi":"10.1016/j.elecom.2025.108060","DOIUrl":"10.1016/j.elecom.2025.108060","url":null,"abstract":"<div><div>Solid Oxide Fuel Cells (SOFCs) represent a promising clean energy technology due to their high efficiency and fuel flexibility; however, accurate estimation of internal electrochemical parameters remains critical for achieving reliable system performance under diverse operating conditions. Traditional parameter identification methods often face challenges such as slow convergence, premature optimization stagnation, and computational inefficiency, especially when dealing with high-dimensional, nonlinear SOFC models. To overcome these issues, this study proposes a Surrogate-Assisted Differential Evolution with Multi-Sampling Mechanism (SADE-MSM) algorithm, integrating surrogate modeling, centroid sampling, global prescreening, and adaptive local search strategies to optimize SOFC parameters efficiently while minimizing expensive real function evaluations. The SADE-MSM approach was validated through extensive experimental studies involving ten different SOFC operational cases across varied temperatures and pressures, and its performance was benchmarked against nine leading metaheuristic algorithms. Results show that SADE-MSM consistently achieved the lowest mean squared error (MSE), fastest convergence rates, and highest robustness, outperforming all comparative methods in both accuracy and computational cost. Theoretically, these findings validate the effectiveness of hybrid surrogate-assisted evolutionary frameworks for complex multimodal optimization problems, while practically they demonstrate that SADE-MSM enables real-time SOFC parameter estimation suitable for applications in microgrids, hybrid renewable systems, and predictive control platforms. Readers benefit from a robust, efficient methodology that enhances SOFC modeling and operational reliability, while future work aims to extend SADE-MSM to fully dynamic, online optimization scenarios under real-world uncertainties such as system aging, transient loads, and sensor noise.</div></div>","PeriodicalId":304,"journal":{"name":"Electrochemistry Communications","volume":"180 ","pages":"Article 108060"},"PeriodicalIF":4.2,"publicationDate":"2025-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145320540","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Research Progress of isoniazid electrochemical sensors","authors":"Huanyu Che ,&nbsp;Gaihua He ,&nbsp;Xuekun Liu ,&nbsp;Xin Guo ,&nbsp;Chang Lei ,&nbsp;Ye Liao","doi":"10.1016/j.elecom.2025.108038","DOIUrl":"10.1016/j.elecom.2025.108038","url":null,"abstract":"<div><div>This paper reviews the research progress of isoniazid electrochemical sensors in recent years. As an important anti-tuberculosis drug, the rapid and sensitive detection of isoniazid is of great significance for clinical treatment and drug quality control. This paper first introduces the basic properties and detection requirements of isoniazid, then elaborates on the working principle of electrochemical sensors and their application in isoniazid detection, with a focus on discussing isoniazid electrochemical sensors with different modified materials. Finally, the future development direction of isoniazid sensors is prospected, providing valuable insights for future research.</div></div>","PeriodicalId":304,"journal":{"name":"Electrochemistry Communications","volume":"180 ","pages":"Article 108038"},"PeriodicalIF":4.2,"publicationDate":"2025-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144989398","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mechanically reinforced solid-state polymer electrolyte using illite filler for flexible all-solid-state Li-metal batteries","authors":"Jaesub Lee ,&nbsp;Jeong-Jin Yang ,&nbsp;Beomgi Kim ,&nbsp;Sunkyung You ,&nbsp;Jae-Kwang Kim ,&nbsp;Young-Ran Lee ,&nbsp;Seongki Ahn ,&nbsp;Jeha Kim ,&nbsp;Hong-Il Kim","doi":"10.1016/j.elecom.2025.108046","DOIUrl":"10.1016/j.elecom.2025.108046","url":null,"abstract":"<div><div>Solid-state electrolytes have attracted significant attention due to their high safety, mechanical stability, and compatibility with lithium metal anodes, making them a critical component in the development of next-generation all-solid-state batteries. Polymer-based solid electrolytes (PSEs) offer advantages such as flexibility, processability, and good interfacial contact with electrodes but suffer from low structural stability. In this study, PSEs were fabricated by photopolymerization from ethoxylated trimethylolpropane triacrylate and expanded illite (EI) functional filler. The PSEs synthesized with 4 wt% EI show a favorable ionic conductivity of 2.31 × 10⁻⁴ S cm⁻¹ at 25 °C and an all-solid-state Li/NCM622 coin cell using the PSE as the electrolyte delivered a discharge capacity of 129.5 mAh g^{<strong>−</strong>1} at 0.1C with 98 % Coulombic efficiency. In addition, the EI-containing PSE exhibited improved mechanical strength, enabling the fabrication of a flexible all-solid-state Li-metal battery pouch cell. This study offers valuable insight into the design of PSEs using clay-based fillers.</div></div>","PeriodicalId":304,"journal":{"name":"Electrochemistry Communications","volume":"180 ","pages":"Article 108046"},"PeriodicalIF":4.2,"publicationDate":"2025-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145046912","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Modeling current density and SoC distribution of all-solid-state lithium-ion batteries","authors":"Zhenya Wang ,&nbsp;Dmitri L. Danilov ,&nbsp;Jingjing Zhou ,&nbsp;Meng Zheng ,&nbsp;Yi Huang ,&nbsp;Tao Chen ,&nbsp;Rüdiger-A. Eichel ,&nbsp;Peter H.L. Notten","doi":"10.1016/j.elecom.2025.108056","DOIUrl":"10.1016/j.elecom.2025.108056","url":null,"abstract":"<div><div>Researchers have conducted in-depth investigations into lithium-ion battery models. However, a notable limitation of existing models lies in the assumption of infinitely conductive current collectors, which compromises simulation accuracy. Herein, we present a model that explicitly accounts for current collector resistance, employing Kirchhoff's circuit laws and a suitable discretization method to characterize the associated current density and SoC distribution in all-solid-state thin-film batteries. Simulation results demonstrate that the highest SoC occurs near the charging tab, leading to preferential full-charge in this region. Intriguingly, when charging is interrupted at this stage, the battery enters a self-balancing state: the state of charge SoC near the tab gradually decreases. At the same time, SoC in other regions increases, culminating in a homogeneous SoC across the entire battery. This phenomenon reflects the underlying process of lithium-ion redistribution. Additionally, a larger resistance disparity between cathodic and anodic current collectors creates an inhomogeneous current density distribution, thereby accelerating localized battery aging. The approach adopted by our model exhibits broad generality and can be readily adapted to other battery types.</div></div>","PeriodicalId":304,"journal":{"name":"Electrochemistry Communications","volume":"180 ","pages":"Article 108056"},"PeriodicalIF":4.2,"publicationDate":"2025-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145217426","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Surface orientation dependent electrochemical stability of RuO2 and IrO2 under acidic oxygen evolution reaction","authors":"Naomi Naraki,&nbsp;Yuto Okayama,&nbsp;Naoto Todoroki","doi":"10.1016/j.elecom.2025.108048","DOIUrl":"10.1016/j.elecom.2025.108048","url":null,"abstract":"<div><div>Ru- and Ir-oxides have considerable attentions as acidic oxygen evolution electrocatalysts for polymer electrolyte membrane water electrolysis. However, there have been no reports of comparative study of electrochemical stability depending on the surface orientations. Here, we prepared the (<em>hkl</em>)-oriented (<em>hkl</em> = 110, 001, 100) RuO₂ and IrO₂ thin films on rutile-TiO₂ single crystal substrates by arc-plasma deposition and investigated the surface orientation dependence of electrochemical stability under oxygen evolution reaction (OER) in 0.1 M HClO₄. At the initial state, RuO₂ showed a lower OER overpotential and smaller Tafel slope compared to IrO₂ for all the surface orientations. However, the overpotential of RuO₂ steeply increased during chronopotentiometry (CP) measurements, while the overpotential increase for IrO₂ was significantly suppressed. After the CP measurement, the overpotential of IrO₂ became smaller than that of RuO₂ for all the surface orientation. RuO₂ shows orientation dependence on the stability number, i.e. ratio of total charges used for CP and dissolution amount of Ru or Ir, while the IrO₂ didn't show a clear trend. The results demonstrated that the surface orientation of both RuO₂ and IrO₂ affects not only the activity, but also the stability, and elemental dissolution and the influence is more significant for RuO₂.</div></div>","PeriodicalId":304,"journal":{"name":"Electrochemistry Communications","volume":"180 ","pages":"Article 108048"},"PeriodicalIF":4.2,"publicationDate":"2025-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145155987","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Pt-based electrocatalyst for hydrogen evolution in acidic electrolytes","authors":"Muhammad Yasin ,&nbsp;Nisar Khan ,&nbsp;Muhammad Murad ,&nbsp;Kashif Ali ,&nbsp;Zonish Zeb ,&nbsp;Shandana Saleem ,&nbsp;Zafran Ullah","doi":"10.1016/j.elecom.2025.108057","DOIUrl":"10.1016/j.elecom.2025.108057","url":null,"abstract":"<div><div>Platinum (Pt) based electrocatalysts remain the gold standard for the hydrogen evolution reaction (HER) in acidic environments due to their optimal hydrogen adsorption-free energy (ΔG_H⁎ ≈ 0), high electrical conductivity, and superior chemical stability. However, the scarcity and high cost of Pt necessitate innovative strategies to reduce Pt loading while enhancing catalytic efficiency and long-term durability. This review systematically presents the recent advancements in Pt-based HER electrocatalysts, emphasizing mechanistic insights across the Volmer, Heyrovsky, and Tafel steps, and explores the influence of Pt’s electronic structure and nanostructuring on HER kinetics. Strategies such as alloying with transition metals (e.g., Ni, Co, Zn), developing single-atom catalysts (SACs), and engineering hybrid systems with supports like MXenes, graphene aerogels, and metal carbides are discussed in detail. These approaches optimize active site exposure, electronic modulation, and catalyst-support interactions to achieve high turnover frequencies, low overpotentials, and enhanced electrochemical stability under industrially relevant conditions. The review further highlights key performance indicators such as Tafel slope, mass activity, TOF, and stability, along with advanced synthesis methods, including atomic layer deposition and microwave-assisted reduction. Finally, current challenges in scalability, degradation resistance, and cost-performance trade-offs are evaluated, providing future directions toward sustainable, high-performance HER systems based on Pt. This comprehensive analysis aims to bridge the gap between fundamental catalyst design and practical hydrogen production technologies.</div></div>","PeriodicalId":304,"journal":{"name":"Electrochemistry Communications","volume":"180 ","pages":"Article 108057"},"PeriodicalIF":4.2,"publicationDate":"2025-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145217424","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Binder-free electrode based on Zn-doped Ni3S2 vertically grown 2-dimensional nanostructures on Ni foam with boosted electrochemical performance for energy storage applications","authors":"Muhammad Saleem Akhtar ,&nbsp;Zaeem Ur Rehman ,&nbsp;Witold Chromiński ,&nbsp;Gabriela Komorowska ,&nbsp;Tomasz Wejrzanowski","doi":"10.1016/j.elecom.2025.108058","DOIUrl":"10.1016/j.elecom.2025.108058","url":null,"abstract":"<div><div>Transition metal sulfides have drawn a lot of interest in the field of electrochemical energy storage. However, their performance is hampered due to the stacking faults during the electrode fabrication. In this study, we report the Zn-doped Ni₃S₂ vertically grown 2-dimensional nanostructures on the conductive nickel foam by a one-step, rapid, energy-efficient, and cost-effective microwave-assisted method. Transmission electron microscopy (TEM) and high-resolution transmission electron microscopy (HR-TEM) analyses confirmed the morphological and phase composition as initially identified by scanning electron microscopy (SEM) and X-ray diffraction (XRD). The electrochemical investigations substantiated the boosted performance of the electrode, an impressive specific capacitance value of 1984 F g⁻¹ and 5.95 F cm⁻² at a discharge current of 3 mA cm⁻². Later on, this electrode, when tested in a Swagelok cell as a positive electrode and graphene nano pellets as a negative electrode, achieved a maximum energy density of 45.5 Whkg⁻¹ and 910 Wkg⁻¹ power at a discharge current rate of 1 A g⁻¹. The pseudocapacitive characteristics of this binder-free nanostructured electrode, driven by reversible redox reactions, highlight their potential for high-performance energy storage applications.</div></div>","PeriodicalId":304,"journal":{"name":"Electrochemistry Communications","volume":"180 ","pages":"Article 108058"},"PeriodicalIF":4.2,"publicationDate":"2025-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145217425","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synergistic interface of Nb-doped MoSe2 and NiTe heterostructure enables efficient electrocatalysis for hydrogen evolution","authors":"Ramaraj Sukanya ,&nbsp;Raj Karthik ,&nbsp;Abdullah Al Mahmud ,&nbsp;Eithne Dempsey ,&nbsp;Deivasigamani Ranjith Kumar ,&nbsp;Carmel B. Breslin ,&nbsp;Jae-Jin Shim","doi":"10.1016/j.elecom.2025.108061","DOIUrl":"10.1016/j.elecom.2025.108061","url":null,"abstract":"<div><div>To support clean hydrogen energy, we present a niobium-doped molybdenum diselenide integrated with nickel telluride (Nb-MoSe₂–NiTe) heterostructure as an efficient electrocatalyst for the hydrogen evolution reaction (HER) in acidic media. Nb-doping modulates the electronic structure of MoSe₂, while NiTe contributes to enhanced conductivity and introduces additional active interfacial sites. Structural and surface characterizations confirm successful doping and heterostructure formation. The optimized Nb-MoSe₂–NiTe composition achieves a low overpotential of 395 mV at 50 mA/cm² and a Tafel slope of 242 mV/dec, along with a high ECSA of 377.5 cm². These enhancements result from synergistic interactions that promote charge transfer and hydrogen adsorption. The Nb-MoSe₂–NiTe offers a promising platform for cost-effective HER catalysis, demonstrating a rational strategy that integrates electronic and interfacial engineering for sustainable hydrogen production.</div></div>","PeriodicalId":304,"journal":{"name":"Electrochemistry Communications","volume":"180 ","pages":"Article 108061"},"PeriodicalIF":4.2,"publicationDate":"2025-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145217423","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Exploring operational barriers in microbial fuel cells: Enhancing energy recovery from wastewater","authors":"Behzad Kanani ,&nbsp;Alireza Zahedi ,&nbsp;Fatemeh Abtahi ,&nbsp;Sepideh Abedi","doi":"10.1016/j.elecom.2025.108051","DOIUrl":"10.1016/j.elecom.2025.108051","url":null,"abstract":"<div><div>In response to global demands for more efficient energy and water management amidst environmental crises, wastewater is increasingly valued not just as a waste product but as a potential source of renewable energy. Microbial Fuel Cells are at the forefront of this transformation, capable of directly converting organic substrates found in wastewater into electrical energy through the activity of electrogenic bacteria. This paper provides a comprehensive review of advancements over the past two decades in Microbial Fuel Cell technology, focusing on improvements in system design, material selection, and operational efficacy that reduce costs and enhance energy efficiency. It examines key factors including internal resistance, dissolved oxygen, conductivity, organic loading rate, and optimal conditions such as temperature (20–35 °C) and pH (6.3–7.8) in maximizing the performance of Microbial Fuel Cells. Despite significant technological advances, several barriers remain that prevent the widespread commercial application of Microbial Fuel Cells, including high investment costs and limited scalability. Addressing these challenges is crucial for realizing the full potential of Microbial Fuel Cells in sustainable wastewater management. This review underscores the critical operational parameters that influence Microbial Fuel Cell efficiency, proposing strategies to overcome existing limitations and enhance the energy recovery process.</div></div>","PeriodicalId":304,"journal":{"name":"Electrochemistry Communications","volume":"180 ","pages":"Article 108051"},"PeriodicalIF":4.2,"publicationDate":"2025-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145155986","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}