Electrochemistry Communications最新文献

{"title":"A dual-aptamer biosensor based on NPG for one-step and rapid HER2 detection in breast cancer","authors":"Caiyuan Yu ,&nbsp;Cui Wu ,&nbsp;Li Feng ,&nbsp;Peng Huang ,&nbsp;Zhuxia Zhang","doi":"10.1016/j.elecom.2026.108126","DOIUrl":"10.1016/j.elecom.2026.108126","url":null,"abstract":"<div><div>The poor biological stability of antibodies and significant steric hindrance in HER2 immune biosensors limit their sensitivity and stability. To address this challenge, a dual-aptamer electrochemical biosensor was developed to enable one-step and highly sensitive detection of the breast cancer biomarker HER2. Two aptamers respectively recognize different epitopes of HER2, forming a sandwich structure. And by introducing the electrochemical reporter Mb onto the electrode surface, an electric current signal related to the concentration of HER2 is generated. To further enhance the current response and improve the sensitivity of HER2 detection, the nano-porous gold (NPG) was modified onto the electrode surface to increase the specific surface area and reduce the resistance. This dual-aptamer biosensor has a very wide linear range (1 pg/mL–100 μg/mL) in HER2 detection, with a limit of detection (LOD) as low as 0.212 pg/mL. The dual-aptamer biosensor shows a selectivity of over 10³ times for interfering substances such as CEA, Ki-67, IgG, and nucleic acids; the signal remains stable at 92.7% after being stored at 4 °C for 15 days, with RSDs of less than 5% for high, medium, and low concentrations. Based on the above results, this dual-aptamer biosensor meets the clinical requirements of high sensitivity, specificity, long-term storage and repeated detection. Moreover, it is simple to operate, fast, and low in cost, providing a potential tool for early screening of breast cancer, monitoring of treatment efficacy, and prognosis assessment.</div></div>","PeriodicalId":304,"journal":{"name":"Electrochemistry Communications","volume":"185 ","pages":"Article 108126"},"PeriodicalIF":4.2,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147386269","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":"Advancing CO2 electrolyzers from laboratory to industrial scale","authors":"Ya Liu ,&nbsp;Yibin Chen ,&nbsp;Yu Zhang","doi":"10.1016/j.elecom.2026.108129","DOIUrl":"10.1016/j.elecom.2026.108129","url":null,"abstract":"<div><div>Electrochemical CO₂ reduction reaction (CO₂RR) driven by renewable energy represents a pivotal strategy for closing the anthropogenic carbon cycle. While catalyst development has advanced rapidly, the shift of intrinsic activities into industrial productivity is strictly governed by electrolyzer engineering. This review critically assesses the evolution of CO₂RR reactor configurations, moving from fundamental kinetic studies in H-cells to high-rate production in gas-fed systems including flow cells, membrane electrode assemblies, and emerging solid electrolyte/stacked systems. Particular attention is given to the physicochemical trade-offs and engineering bottlenecks hindering scale-up. Finally, we propose a strategic roadmap for future research, with the emphasis on dynamic operation, impurity tolerance, operando characterization techniques, and the integration of techno-economic analysis into future reactor design.</div></div>","PeriodicalId":304,"journal":{"name":"Electrochemistry Communications","volume":"185 ","pages":"Article 108129"},"PeriodicalIF":4.2,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147386271","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":"Hydrogen production via aqueous ammonia electrolysis: electrolyte optimization, product selectivity, and efficiency analysis","authors":"Franciele Lamaison Fossaluza,&nbsp;Paulo Firmino Moreira,&nbsp;Claudio Augusto Oller do Nascimento,&nbsp;Maria Anita Mendes","doi":"10.1016/j.elecom.2026.108124","DOIUrl":"10.1016/j.elecom.2026.108124","url":null,"abstract":"<div><div>This study presents a comprehensive investigation of aqueous ammonia electrolysis as an alternative method for hydrogen production. It explores various experimental conditions, energy, and Faradaic efficiencies, and the underlying electrochemical mechanisms. Cyclic voltammetry and electrolysis tests were conducted at different current densities (ranging from 50 to 700 mA) to determine the optimal conditions for hydrogen gas (H₂) generation. Gas chromatography with a thermal conductivity detector (GC-TCD) was used to confirm the production of hydrogen and verify the absence of gaseous nitrogen. Alongside the solution-phase analyses, these findings provide clear evidence for the formation of soluble by-products, primarily nitrite (NO₂⁻) and nitrate (NO₃⁻), as both species were detected and quantified in our measurements. The Faradaic efficiency reached 98%, while energy efficiency ranged from 59% to 75%. The results are compared with existing literature, emphasizing ammonia's potential as a sustainable hydrogen carrier and highlighting the current limitations of the process in aqueous media.</div></div>","PeriodicalId":304,"journal":{"name":"Electrochemistry Communications","volume":"185 ","pages":"Article 108124"},"PeriodicalIF":4.2,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147386272","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-entropy alloys for electrocatalysis: From fundamental properties to rational design and energy applications","authors":"Yinggang Sun,&nbsp;Dechao Chen","doi":"10.1016/j.elecom.2026.108128","DOIUrl":"10.1016/j.elecom.2026.108128","url":null,"abstract":"<div><div>Electrochemical energy conversion technologies are central to addressing global energy shortages and environmental pollution, yet their practical efficiency is often limited by sluggish reaction kinetics and the reliance on noble-metal-based catalysts. High-entropy alloys (HEAs), consisting of five or more elements in nearly equiatomic proportions, have garnered growing attention due to their distinctive properties, including exceptional strength, high hardness, excellent ductility, and corrosion resistance. In this review, we systematically examine the roles of HEAs in electrocatalytic energy conversion, with a particular focus on how their phase structures and core effects govern catalytic activity, selectivity, and durability. We further summarize recent advances in HEAs electrocatalyst synthesis and optimization, addressing challenges in scalable compositional control, stability under harsh conditions, and atomic-level regulation of defects and lattice strain. Finally, we outline future directions toward next-generation HEAs catalysts, highlighting opportunities in theory-experiment integration, advanced in situ characterization, large-scale synthesis with uniform composition, and quantitative structure-performance relationships. We anticipate that this review will stimulate further exploration and development of HEAs for electrochemical applications.</div></div>","PeriodicalId":304,"journal":{"name":"Electrochemistry Communications","volume":"185 ","pages":"Article 108128"},"PeriodicalIF":4.2,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147386270","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":"In-situ synthesis of zeolitic imidazolate framework-67 (ZIF-67) derived phosphorous-doped cobalt composites as bifunctional catalyst for photo-assisted water electrolysis","authors":"Chun-I Lee ,&nbsp;Jhao-Hua Zeng ,&nbsp;Jia-He Peng ,&nbsp;Yi-Yu Chen ,&nbsp;Bing-Joe Hwang ,&nbsp;Chun-Jern Pan","doi":"10.1016/j.elecom.2026.108122","DOIUrl":"10.1016/j.elecom.2026.108122","url":null,"abstract":"<div><div>A phosphorus modified ZIF-67@TiO₂ photo assisted electrocatalytic heterostructure is developed to elucidate the structure performance relationship and the underlying reaction mechanism in alkaline water electrolysis. The <em>in-situ</em> growth of ZIF-67 on TiO₂ followed by controlled phosphorization induces partial framework reconstruction, generating Co<img>P active sites and Ti³⁺ associated defect states while preserving the Co<img>N coordination network of the MOF. This unique structural evolution enables efficient charge separation, accelerated interfacial electron transfer, and improved utilization of photogenerated carriers.</div><div>Electrochemical and optical characterizations reveal that TiO₂ primarily functions as a photogenerated charge supplier, while phosphorized ZIF-67 serves as the dominant electrocatalytic component. Suppressed photoluminescence intensity and enhanced transient photocurrent responses confirm efficient inhibition of charge recombination and rapid photoinduced charge extraction across the heterointerface. As a result, the P-ZIF-67@TiO₂ electrode exhibits markedly reduced overpotentials and charge-transfer resistance for both the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) under illumination.</div><div>Mechanistic analysis indicates that Co<img>P sites act as the primary HER active centers following a Volmer-Heyrovsky pathway, whereas <em>in-situ</em> surface reconstruction of Co<img>P into high valence CoOOH species governs OER activity. Consequently, the optimized P-ZIF-67@TiO₂ catalyst delivers a low cell voltage of 1.75 V at 10 mA cm⁻² under illumination and maintains stable operation at 100 mA cm⁻² for over 5717 h. This work demonstrates that rational phosphorization induced structural modulation, providing mechanistic insights for designing noble-metal-free photo-assisted electrocatalysts for efficient alkaline water splitting.</div></div>","PeriodicalId":304,"journal":{"name":"Electrochemistry Communications","volume":"185 ","pages":"Article 108122"},"PeriodicalIF":4.2,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146135616","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":"Electrospun MOF-based porous Zn-co@carbon composite nanofibers as an efficient catalyst for oxygen reduction reactions in MFC","authors":"Xiaoyan Zhang ,&nbsp;Mingzhen Lin ,&nbsp;Simin Tang ,&nbsp;Jing Yang ,&nbsp;Zilei Chen ,&nbsp;Qinzheng Yang","doi":"10.1016/j.elecom.2026.108115","DOIUrl":"10.1016/j.elecom.2026.108115","url":null,"abstract":"<div><div>Microbial fuel cell (MFC) is a sustainable technology that uses the energy of exoelectrically generated bacteria to convert waste into energy. However, the existing cathode materials have poor electrical conductivity and low electrochemical activity, which makes it difficult to improve the electricity generation efficiency of MFC, which seriously hinders the development of MFC. Metal-organic framework (MOF) materials formed by Zn and Co transition metals were grown on the surface of electrospun PAN nanofibers by in-situ growth method, and C nanofibers supported with bimetallic MOF skeleton nanoparticles were prepared by high temperature heat treatment (Zn-Co@NC). The two transition metal MOF scaffolders provide abundant defect structure and pore structure, and have excellent electrocatalytic activity. The developed Zn-Co@NC MFC cathode material significantly improves the material's electricity generation efficiency, and the power density of MFC can reach 1.37 W·m⁻². In this study, the performance of MFC cells is greatly improved, and the application potential of Zn-Co@NC as a cathode material in high-performance MFC cells is demonstrated.</div></div>","PeriodicalId":304,"journal":{"name":"Electrochemistry Communications","volume":"185 ","pages":"Article 108115"},"PeriodicalIF":4.2,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147386268","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":"Electrochemical monitoring of seed aging: Application to Raphanus sativus L. aging","authors":"Antonio Doménech-Carbó ,&nbsp;Eva García-Martínez ,&nbsp;Elena Estrelles ,&nbsp;Pilar Soriano ,&nbsp;Sara Mira","doi":"10.1016/j.elecom.2026.108127","DOIUrl":"10.1016/j.elecom.2026.108127","url":null,"abstract":"<div><div>An electrochemical methodology for the quantification of the degree of viability of plant seeds is proposed for <em>Raphanus sativus</em> L. Voltammetric data recorded on extracts of seeds macerated with ethanol, transferred onto glassy carbon electrodes in contact with acetate buffer, can be correlated with long-time germination data. As a result, quantitative monitoring of seed viability upon aging is obtained.</div></div>","PeriodicalId":304,"journal":{"name":"Electrochemistry Communications","volume":"185 ","pages":"Article 108127"},"PeriodicalIF":4.2,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147385513","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":"Electrochemical cutting of microslits on metallic glass using cylindrical submicron tips","authors":"Lingchao Meng ,&nbsp;Hao Li ,&nbsp;Zhicheng Ai ,&nbsp;Pengxiang Yi","doi":"10.1016/j.elecom.2026.108112","DOIUrl":"10.1016/j.elecom.2026.108112","url":null,"abstract":"<div><div>Metallic glass is a promising material for fabricating micro-nanostructures, yet the minimum feature size in electrochemical cutting is typically limited by the diameter of the wire electrode. To overcome this, a novel electrochemical cutting process using cylindrical submicron tips as tool electrodes is proposed. Cylindrical tips with an average diameter of 160 nm over an apical length of 5 μm were fabricated via liquid membrane electrochemical etching. Electrochemical cutting experiments were then performed on Ni-based metallic glass using the fabricated submicron tips. By decreasing the pulse-on time to 25 ns, a microslit with an average width of 2.6 μm were achieved, which is the minimum observed under these operating conditions in this paper.</div></div>","PeriodicalId":304,"journal":{"name":"Electrochemistry Communications","volume":"184 ","pages":"Article 108112"},"PeriodicalIF":4.2,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145996243","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":"Resolving nanoparticle collision reactivity via simultaneous current and fluorescence detection","authors":"Hyeong Seok Yu,&nbsp;Donghoon Han","doi":"10.1016/j.elecom.2026.108125","DOIUrl":"10.1016/j.elecom.2026.108125","url":null,"abstract":"<div><div>Operando analysis enables real-time monitoring of chemical processes, with spectroelectrochemical methods offering direct mechanistic insight. Here, we present an electrochemical-fluorescence approach that couples time-resolved fluorescence detection with nanoparticle collision electrochemistry. Fluorescein-functionalized silver nanoparticles (AgNPs) serve as dual probes, providing simultaneous picoampere-level current and fluorescence readouts. At low electrode potentials, weak electrostatic attraction limits oxidation, yielding few correlated current-fluorescence events. Increasing the potential enhances both collision frequency and electron transfer, producing more coincident spikes. In contrast, fluorescence spikes without current signals were suggested to be associated with 11-Mercapto-1-undecanol (MUD) functionalization that may reduce electron transfer. By correlating electrochemical and optical outputs, this strategy distinguishes reactive from nonreactive collisions. More broadly, it establishes a versatile platform for resolving single-nanoparticle reactivity beyond electrochemistry alone, with implications for catalysis, biosensing, and nanoparticle tracking in complex media.</div></div>","PeriodicalId":304,"journal":{"name":"Electrochemistry Communications","volume":"184 ","pages":"Article 108125"},"PeriodicalIF":4.2,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147398535","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":"Aluminum metaphosphate-derived CEI suppresses interfacial degradation of NCM811 at 4.5 V and 60 °C","authors":"Mingming Shi ,&nbsp;Jianyu Yu ,&nbsp;Wenqiang Xie ,&nbsp;Mengjie Huang ,&nbsp;Xing Wang ,&nbsp;Zihao Li ,&nbsp;Chao Shen ,&nbsp;Gauhar Mussabek ,&nbsp;Gulmira Yar-Mukhamedova ,&nbsp;Keyu Xie","doi":"10.1016/j.elecom.2026.108114","DOIUrl":"10.1016/j.elecom.2026.108114","url":null,"abstract":"<div><div>To enhance the energy density of lithium-ion batteries, increasing the operating voltage is crucial; however, this poses challenges to electrolyte stability, particularly with catalytic cathodes such as NCM811. We propose the incorporation of aluminum metaphosphate and fluoroethylene carbonate into the electrolyte to stabilize the NCM811 interface. This modified electrolyte formulation significantly enhances cycling stability, achieving 96.5% capacity retention after 100 cycles at 0.5C under 4.5 V, as well as improves rate capability and high-temperature endurance at 60 °C for NCM811. Analytical results indicate that Al(PO₃)₃ decomposes on the cathode surface, forming a stable cathode electrolyte interphase (CEI) composed of inorganic constituents such as AlF₃ and Al₂O₃. This CEI effectively neutralizes hydrofluoric acid (HF), physically isolates the cathode from the electrolyte, reduces transition metal dissolution, minimizes Li⁺/Ni²⁺ disorder, and preserves the structural integrity of NCM811 with a CEI thickness of approximately 3.91 nm. This study provides a viable solution to interfacial degradation in high-voltage batteries by regulating the cathode interface.</div></div>","PeriodicalId":304,"journal":{"name":"Electrochemistry Communications","volume":"184 ","pages":"Article 108114"},"PeriodicalIF":4.2,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146025532","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}