Current Opinion in Electrochemistry最新文献

{"title":"Positively charged second coordination sphere in molecular CO2 electroreduction","authors":"Sergio Gonell","doi":"10.1016/j.coelec.2025.101766","DOIUrl":"10.1016/j.coelec.2025.101766","url":null,"abstract":"<div><div>Molecular electrocatalysts for CO₂ reduction typically suffer from scaling relationships, in which a fast catalyst needs large overpotentials, limiting the development of efficient catalytic systems, which work at high rates and low energy inputs. Introduction of pendent positively charged groups in the ligand framework has proven to be an efficient strategy to break such relationships. This revision presents the different molecular electrocatalysts for CO₂ reduction, whose second coordination sphere has been decorated with positively charged groups, enabling improved catalytic performances.</div></div>","PeriodicalId":11028,"journal":{"name":"Current Opinion in Electrochemistry","volume":"54 ","pages":"Article 101766"},"PeriodicalIF":6.9,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145412456","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"From lab to industry: Challenges in scaling Cu-based electrodes for CO2 electroreduction to multi-carbon products","authors":"Thao-Nguyen Ho ,&nbsp;Trong Huy Pham ,&nbsp;Yueying Li ,&nbsp;Hossein Esmaeili ,&nbsp;Cao-Thang Dinh","doi":"10.1016/j.coelec.2025.101769","DOIUrl":"10.1016/j.coelec.2025.101769","url":null,"abstract":"<div><div>The electrochemical reduction of carbon dioxide (CO₂RR) to valuable multi-carbon (C₂₊) products presents a promising strategy for sustainable fuel and chemical production. Copper (Cu)-based catalysts are particularly suited for C–C bond formation thanks to their unique interaction with key CO₂RR intermediates. Recent advancements in catalyst design, including surface engineering, molecular coating, doping and alloying, and tandem catalysis, have significantly improved C₂₊ product selectivity at the laboratory scale. However, translating these improvements to large-area electrodes remains a critical challenge due to difficulties in catalyst synthesis, structural stability, and fabrication techniques. This review explores the latest progress in Cu-based CO₂RR catalysts, highlights the barriers to scaling up synthesis and electrode fabrication, and proposes potential solutions inspired by established industrial technologies. Addressing these challenges could bring CO₂RR closer to commercial viability, enabling the large-scale production of sustainable carbon-based fuels and chemicals.</div></div>","PeriodicalId":11028,"journal":{"name":"Current Opinion in Electrochemistry","volume":"54 ","pages":"Article 101769"},"PeriodicalIF":6.9,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145412536","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A critical review of electrosynthesized molecularly imprinted polymers in electrochemical sensing: Pros and cons","authors":"Abdellatif Ait Lahcen ,&nbsp;Kawtar Saidi ,&nbsp;Aziz Amine","doi":"10.1016/j.coelec.2025.101752","DOIUrl":"10.1016/j.coelec.2025.101752","url":null,"abstract":"<div><div>Electrosynthesized Molecularly Imprinted Polymers (e-MIPs) represent a key advancement in electrochemical sensing, thanks to their remarkable selectivity, stability, and ease of fabrication through electropolymerization. However, challenges remain, particularly regarding reproducibility and electrochemical stability, which hinder their practical application. This review critically analyzes the latest developments in e-MIP-based electrochemical sensors, emphasizing their advantages and drawbacks. It discusses cutting-edge electropolymerization methods, signal amplification techniques, and the incorporation of emerging technologies like artificial intelligence and wearable sensors. By thoroughly examining recent innovations, this review aims to determine whether e-MIP-based electrochemical sensors constitute a meaningful breakthrough or if existing obstacles continue to limit their wider adoption.</div></div>","PeriodicalId":11028,"journal":{"name":"Current Opinion in Electrochemistry","volume":"54 ","pages":"Article 101752"},"PeriodicalIF":6.9,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145217543","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Design-driven innovation in zinc-air battery architecture: Toward flexible, wearable, and grid-scale applications","authors":"Adil Alshoaibi ,&nbsp;Iheke Micheal Nwachukwu","doi":"10.1016/j.coelec.2025.101775","DOIUrl":"10.1016/j.coelec.2025.101775","url":null,"abstract":"<div><div>Rechargeable zinc–air batteries (RZABs) offer high energy density, low cost, and environmental safety, positioning them as leading candidates for next-generation electrochemical energy storage. However, conventional ZABs lack the mechanical flexibility required for integration into wearable devices, electronic textiles, and soft robotics. The main scope of this review is the rational presentation of driven innovations in RZABs for applications as flexible, wearable devices and grid-scale electrochemical energy storage systems. A section dedicated to cross-disciplinary approaches and emerging fabrication techniques, with an emphasis on their influence in advancing stability, scalability, and biocompatibility, is summarized herein. Finally, outlooks on sustainability, commercialization, and future advancement of the RZABs towards practical large-scale applications are recapitulated.</div></div>","PeriodicalId":11028,"journal":{"name":"Current Opinion in Electrochemistry","volume":"54 ","pages":"Article 101775"},"PeriodicalIF":6.9,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145568694","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Electrochemical biosensors: A prospective insight to recent developments and future directions","authors":"Partha Pratim Goswami,&nbsp;Shiv Govind Singh","doi":"10.1016/j.coelec.2025.101776","DOIUrl":"10.1016/j.coelec.2025.101776","url":null,"abstract":"<div><div>Electrochemical biosensors have emerged as an exciting solution for qualitative and quantitative detection of different targets, aiming at state-of-the-art systems for personalised healthcare, environmental, toxicology analysis and therapeutic monitoring, etc. These biosensors are rapid and sensitive with ultra-low detection limits and are available at low cost, making them potential candidates for large-scale deployment. Furthermore, the strategic design from scratch of such a biosensor could enable a platform technology that can easily be carried forward to similar sensor development across different related applications. Ultimately, the realisation of a point-of-care electrochemical biosensor system would urge an updated design of electrodes, high performance in terms of major sensing matrices, assembly of circuit readout, and better stability cum reproducibility. However, achieving a real on-field demonstration necessitates clinical cross-validation to enable sufficient confidence in the developed technology. From a technical perspective, these sensors encompass a broad spectrum of techniques — spanning classical electrochemical methods (Voltammetry, Amperometry, Potentiometry, etc.), interfacial interrogation (Electrochemical Impedance Spectroscopy, Chrono coulometry, Conductometry, etc.), and coupled/transduction-based measurements (Electrochemiluminescence, Photoelectrochemistry, etc.) — thereby underscoring their scientific rigour, versatility, and applicability across diverse biosensing platforms. Considering these facts, this review paper describes the recent developments in electrochemical biosensors, covering the thematic advances of the individual components toward point-of-care technology. The discussion evolves from the preliminary familiarisation of the individual components and their current trend to some advanced application-specific recent developments, finally concluded by a comprehensive table of key references elaborating on key achievements, challenges, and proposed ways to address them.</div></div>","PeriodicalId":11028,"journal":{"name":"Current Opinion in Electrochemistry","volume":"54 ","pages":"Article 101776"},"PeriodicalIF":6.9,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145568695","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Toward biocompatible potentiometric sensors","authors":"Justyna Kalisz,&nbsp;Emilia Stelmach,&nbsp;Krzysztof Maksymiuk,&nbsp;Agata Michalska","doi":"10.1016/j.coelec.2025.101761","DOIUrl":"10.1016/j.coelec.2025.101761","url":null,"abstract":"<div><div>Ion-selective sensors are established electroanalytical tools. In most applications classical ion-selective membrane compositions dominate, it is well established that this composition assured excellent analytical performance of the sensor regardless of the construction used. However, the classical and highly successful ion-selective membrane composition is based on relatively toxic constituents. The new challenges in the field related to application of ion-selective sensors as point-of-need sensors, for example, intended to monitor analytes continuously in contact with the skin or body, require consideration of alternative materials to ensure biocompatibility and safety of these devices. This review summarizes different directions and approaches intended to make potentiometric sensors biocompatible.</div></div>","PeriodicalId":11028,"journal":{"name":"Current Opinion in Electrochemistry","volume":"54 ","pages":"Article 101761"},"PeriodicalIF":6.9,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145358132","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Metallic nanoparticle-based glassy carbon electrodes for smart biosensing","authors":"Supratim Mahapatra,&nbsp;Daphika S. Dkhar,&nbsp;Ankur Singh,&nbsp;Pranjal Chandra","doi":"10.1016/j.coelec.2025.101748","DOIUrl":"10.1016/j.coelec.2025.101748","url":null,"abstract":"<div><div>Glassy carbon electrodes (GCEs) remain a cornerstone in electrochemical biosensing due to their conductivity, stability, and reliability for surface modifications. Incorporation of metallic nanoparticles (MNPs) onto GCEs has significantly improved biosensor performance, particularly in terms of sensitivity, selectivity, and signal transduction. Despite extensive applications using noble and transition metal nanostructures, a systematic understanding of how MNP characteristics such as morphology, composition, and deposition methods impact biosensing across enzymatic, immunological, and nucleic acid platforms remains underexplored. This review critically examines recent advances in MNP-GCE systems, emphasizing nanomaterial design, surface functionalization strategies, and incorporating emerging smart biosensing trends. It discusses the integration of artificial intelligence (AI), machine learning (ML), and Internet of Things (IoT) technologies for next-generation smart sensing applications. Key challenges such as reproducibility, real-sample compatibility, and commercial scalability are highlighted, along with future directions for advancing robust, intelligent biosensors for point-of-care and digital healthcare applications.</div></div>","PeriodicalId":11028,"journal":{"name":"Current Opinion in Electrochemistry","volume":"54 ","pages":"Article 101748"},"PeriodicalIF":6.9,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145007685","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Electroanalysis of proteins and peptides via amino acid residues","authors":"Elena V. Suprun","doi":"10.1016/j.coelec.2025.101751","DOIUrl":"10.1016/j.coelec.2025.101751","url":null,"abstract":"<div><div>Protein and peptide electroanalysis on solid electrodes is not limited to six ‘electroactive’ amino acid residues, but can involve almost all amino acids. In addition to the L-enantiomers of amino acids, the D-enantiomers should also be taken into account. The 3D-structure and large molecular weight affect electrochemical behavior of peptides and proteins compared to free amino acids. Voltammetry and amperometric flow-injection analysis allow one to detect protein molecules and to register their mutations, post-translational modifications, denaturation, degradation, aggregation, and complexation with metal ions by the oxidation signal of amino acid residues. Short-chain bioactive peptides should be considered as a new challenge for electrochemistry due to their wide range of biological activities and applications, including antioxidant, antihypertensive, antiobesity, antimicrobial, and anticancer.</div></div>","PeriodicalId":11028,"journal":{"name":"Current Opinion in Electrochemistry","volume":"54 ","pages":"Article 101751"},"PeriodicalIF":6.9,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145217542","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Recent trends in electrochemical methods for real-time detection of heavy metals in water and soil: A review","authors":"Pythagore L. Kyabutwa ,&nbsp;Nadiah Alyamni ,&nbsp;Jandro L. Abot ,&nbsp;Alexander G. Zestos","doi":"10.1016/j.coelec.2025.101749","DOIUrl":"10.1016/j.coelec.2025.101749","url":null,"abstract":"<div><div>Heavy trace elements (HTEs), including toxic metals such as lead (Pb), mercury (Hg), cadmium (Cd), and arsenic (As), present a growing environmental and public health concern due to their persistence and bioaccumulation in water and soil systems. Driven by increased demand for strategic and rare earth metals in emerging technologies, anthropogenic activities such as mining, industrial discharge, and agriculture have intensified environmental contamination. Traditional detection methods such as (<em>in situ</em> and online) applications. This review highlights recent advances in standard electrochemical techniques, particularly voltammetric ones such as square wave voltammetry (SWV), differential pulse voltammetry (DPV), and anodic stripping voltammetry (ASV), in addition to being non-voltammetric including electrochemical impedance spectroscopy (EIS) and chronopotentiometry methods enhanced by nanomaterials, including carbon nanomaterials: single-walled carbon nanotubes (SWCNTs) and multiwalled carbon nanotubes (MWCNTs); metal and metal oxide nanoparticles; polymer and hybrid nanocomposites; and metal organic frameworks (MOFs). These materials improve sensor sensitivity, selectivity, stability, and portability of standard electrochemical methods, making them ideal for real-time and <em>in situ</em> and online for HTEs. In this review article, current innovations in standard electrochemical techniques with nanomaterials and hybrid nanocomposites improving sensor architecture, functionalization, sensitivity and selectivity are discussed alongside performance metrics and limitations.</div></div>","PeriodicalId":11028,"journal":{"name":"Current Opinion in Electrochemistry","volume":"54 ","pages":"Article 101749"},"PeriodicalIF":6.9,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145096259","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Improving the selectivity of electrochemical CO2 reduction to multicarbon chemicals through microenvironment engineering","authors":"Shouzhong Zou","doi":"10.1016/j.coelec.2025.101759","DOIUrl":"10.1016/j.coelec.2025.101759","url":null,"abstract":"<div><div>Electrochemical carbon dioxide reduction reaction (eCO₂RR) is a promising approach to reduce the concentration of CO₂ in the atmosphere and produce value-added chemicals. Due to the high stability of CO₂ and the complex reaction pathways, the selectivity and reaction rate of converting CO₂ into high-value chemicals, especially multicarbon products, remain unsatisfactory for viable commercial applications. In conjunction with developing catalysts with high intrinsic activity and selectivity, engineering the microenvironment to which the catalysts are exposed has become a versatile and effective means to steer the reaction pathway toward desirable C₂₊ products with high selectivity and at a practically viable current density. This review provides an overview of recent advancements in steering eCO₂RR toward C₂₊ on Cu-based catalysts through microenvironment engineering in the past two years. Selective examples are used to illustrate the efficacy of each microenvironment engineering approach. Perspectives on future research directions are also provided.</div></div>","PeriodicalId":11028,"journal":{"name":"Current Opinion in Electrochemistry","volume":"54 ","pages":"Article 101759"},"PeriodicalIF":6.9,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145262909","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}