ChemElectroChem最新文献_第5页

Combining Different Metals In Transition Metal Dichalcogenides for Hydrogen Evolution Reaction 过渡金属二硫族化合物中不同金属的结合析氢反应

IF 3.5 4区化学

ChemElectroChem Pub Date : 2025-08-06 DOI: 10.1002/celc.202500177

Wenjing Guo, Haoyu Yue, Peixue Li, Qiansu Ma, Wenxia Yuan, Zhongnan Guo

{"title":"Combining Different Metals In Transition Metal Dichalcogenides for Hydrogen Evolution Reaction","authors":"Wenjing Guo, Haoyu Yue, Peixue Li, Qiansu Ma, Wenxia Yuan, Zhongnan Guo","doi":"10.1002/celc.202500177","DOIUrl":"10.1002/celc.202500177","url":null,"abstract":"Among the various approaches for hydrogen production, electrocatalytic water splitting for hydrogen evolution reaction (HER) is considered as the most promising technology for industrial application. However, the large-scale implementation of this technology is still hindered by its dependence on expensive noble metal-based catalysts. Transition metal dichalcogenides (TMDs), owing to their layered structures and tunable electronic properties, have emerged as promising alternatives to noble metals for HER. Nevertheless, the intrinsic catalytic performance of TMDs remains inferior to that of noble metals, making the development of efficient and stable TMD-based electrocatalysts essential for practical applications. One effective strategy to enhance the HER activity of TMDs is metal combination, whereby various metals are incorporated into TMD system. The key advantage of this approach lies in the diverse roles that different metals can play, including stabilizing crystal structure, modulating electronic structure, constructing nanostructures, and inducing synergistic effects. To inspire both theoretical and experimental researchers for further advancements, this review presents a comprehensive overview of recent progress in metal combination strategies for TMD-based HER electrocatalysts. Particular emphasis is placed on the role of metal components in both single-phase systems and heterostructures, aiming to uncover general design principles for the rational development of high-performance multimetallic electrocatalysts.","PeriodicalId":142,"journal":{"name":"ChemElectroChem","volume":"12 17","pages":""},"PeriodicalIF":3.5,"publicationDate":"2025-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://chemistry-europe.onlinelibrary.wiley.com/doi/epdf/10.1002/celc.202500177","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144927617","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Efficient Anion Exchange Membrane Water Electrolysis on Amorphous Spray-Pyrolyzed NiFe2O4 无定形喷雾热解NiFe2O4的高效阴离子交换膜电解法

IF 3.5 4区化学

ChemElectroChem Pub Date : 2025-08-06 DOI: 10.1002/celc.202500226

Jan Witte, Vinzent Olszok, Alfred P. Weber, Thomas Turek

{"title":"Efficient Anion Exchange Membrane Water Electrolysis on Amorphous Spray-Pyrolyzed NiFe2O4","authors":"Jan Witte, Vinzent Olszok, Alfred P. Weber, Thomas Turek","doi":"10.1002/celc.202500226","DOIUrl":"10.1002/celc.202500226","url":null,"abstract":"In the present study, the influence of crystallinity and synthesis method of a NiFe2O4 catalyst for anion exchange membrane water electrolysis (AEMWE) is systematically investigated. Catalysts are prepared using an aerosol-assisted spray-pyrolysis approach, both with and without post-calcination treatment, and a co-precipitation method. The spray-pyrolysis approach produces amorphous particles, whereas the co-precipitation and post-calcination result in partial crystallization of the particles. Notably, the post-calcinated catalyst demonstrated the highest degree of crystallinity, corresponding to reduced catalytic activity and stability. Employing the amorphous NiFe2O4 catalyst provides the highest activity with an iRHF-free cell voltage of 1.565 V at 1 A cm−2. By utilizing a Nafion instead of a PiperION ionomer the iRHF-free cell voltage is further lowered by 37 mV. Moreover, in this configuration the cell performance remained stable, with a degradation rate of only 91 μV h−1, over 200 h at 3 A cm−2 and 80 °C with a cell voltage of just 1.8 V. These findings highlight the critical role of amorphous anode catalysts in achieving both high performance and enduring stability in AEMWE applications, suggesting pathways for future catalyst optimization.","PeriodicalId":142,"journal":{"name":"ChemElectroChem","volume":"12 16","pages":""},"PeriodicalIF":3.5,"publicationDate":"2025-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://chemistry-europe.onlinelibrary.wiley.com/doi/epdf/10.1002/celc.202500226","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144881174","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Advancements in Surface Modification Techniques by Metal Fluoride Coating for Enhanced Electrochemical Performance of Cathode Active Materials in Li-Ion Batteries 金属氟涂层表面改性提高锂离子电池正极活性材料电化学性能的研究进展

IF 3.5 4区化学

ChemElectroChem Pub Date : 2025-08-05 DOI: 10.1002/celc.202500206

Merve Gençtürk, Ahmet Aksöz, Kamil Burak Dermenci, Emre Biçer

{"title":"Advancements in Surface Modification Techniques by Metal Fluoride Coating for Enhanced Electrochemical Performance of Cathode Active Materials in Li-Ion Batteries","authors":"Merve Gençtürk, Ahmet Aksöz, Kamil Burak Dermenci, Emre Biçer","doi":"10.1002/celc.202500206","DOIUrl":"10.1002/celc.202500206","url":null,"abstract":"The demand for high-performance Li-ion batteries spans diverse applications from portable electronics to electric vehicles and smart grid systems. Li-ion batteries face challenges in fast charging/discharging, high capacity, and rate capability due to their microparticle scale active materials. Researchers are addressing these limitations by exploring nanoscale materials and surface modifications, particularly focusing on cathode enhancements. Lithium-rich layered oxide compounds, with theoretical capacities exceeding 200 mAh g−1, show promise in overcoming capacity constraints. However, issues like low Coulombic efficiency and weak rate capability persist, necessitating innovative solutions. Surface modification techniques using inert or active materials have potential in improving electrochemical properties by preventing direct active material–electrolyte interaction, thus reducing capacity degradation. Coatings with materials, like AlF3, MgF2, CeF3, and so on, have demonstrated significant battery performance enhancements. Metal fluoride coatings provide stability and facilitate faster Li-ion intercalation/deintercalation, leading to improved cycle stability and rate capability. Ongoing research aims to understand reaction mechanisms during initial charging, with in situ studies exploring crystal structure changes. Successful surface modification examples include coating lithium-rich layered materials with metal fluoride, resulting in increased discharge capacity and reduced polarization, indicating enhanced Li-ion intercalation/deintercalation.","PeriodicalId":142,"journal":{"name":"ChemElectroChem","volume":"12 16","pages":""},"PeriodicalIF":3.5,"publicationDate":"2025-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://chemistry-europe.onlinelibrary.wiley.com/doi/epdf/10.1002/celc.202500206","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144881317","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

ZIF67-Derived Carbon@SiO2 Anode Materials for Lithium Ion Batteries: Preparation, Characterization, and Performance zif67衍生Carbon@SiO2锂离子电池负极材料：制备，表征和性能

IF 3.5 4区化学

ChemElectroChem Pub Date : 2025-08-02 DOI: 10.1002/celc.202500167

Lulu Yan, Xiaoya Mu, Jun Ma, Shuo Geng, Fan Yang

{"title":"ZIF67-Derived Carbon@SiO2 Anode Materials for Lithium Ion Batteries: Preparation, Characterization, and Performance","authors":"Lulu Yan, Xiaoya Mu, Jun Ma, Shuo Geng, Fan Yang","doi":"10.1002/celc.202500167","DOIUrl":"10.1002/celc.202500167","url":null,"abstract":"Silicon dioxide (SiO2) is considered a promising anode material for lithium-ion batteries (LIBs) due to its high theoretical specific capacity, low operating potential, and natural abundance. However, its practical application is limited by severe volume expansion and continuous formation of unstable solid electrolyte interphases (SEI), leading to rapid capacity degradation. Herein, a composite material of ZIF67-derived carbon and SiO2 (ZIF67-C@SiO2) was fabricated via a simple in situ coating method to address these issues. The porous and nitrogen-doped carbon framework from ZIF67 not only accommodates the volume changes of SiO2 but also enhances electronic conductivity and lithium-ion diffusion. Electrochemical tests show that ZIF67-C@SiO2 delivers a high reversible capacity of 849.7 mAh·g−1 with nearly 100% Coulombic efficiency over 100 cycles. In comparison, pure SiO2 and ZIF67-C exhibit much lower capacities of 98.67 mAh·g−1 and 396.5 mAh·g−1, respectively. Moreover, ZIF67-C@SiO2 maintains a capacity of 566 mAh·g−1 after 200 cycles at 1 A·g−1 with a Coulombic efficiency of 99.6%. These results highlight the synergistic effect between ZIF67-derived carbon and SiO2, offering valuable insights into the design of high-performance SiO2-based anode materials for next-generation LIBs.","PeriodicalId":142,"journal":{"name":"ChemElectroChem","volume":"12 17","pages":""},"PeriodicalIF":3.5,"publicationDate":"2025-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://chemistry-europe.onlinelibrary.wiley.com/doi/epdf/10.1002/celc.202500167","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144927214","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Stability and Performance of 3d Transition Metal Carbo-Sulfides: A Density Functional Theory Exploration for Li-Ion Battery Anodes 三维过渡金属碳-硫化物的稳定性和性能：锂离子电池阳极的密度泛函理论探索

IF 3.5 4区化学

ChemElectroChem Pub Date : 2025-07-28 DOI: 10.1002/celc.202500019

Linguo Lu, Alvaro Guerrero, Juan C. Velez Reyes, Jingsong Huang, Michael Naguib, Zhongfang Chen

{"title":"Stability and Performance of 3d Transition Metal Carbo-Sulfides: A Density Functional Theory Exploration for Li-Ion Battery Anodes","authors":"Linguo Lu, Alvaro Guerrero, Juan C. Velez Reyes, Jingsong Huang, Michael Naguib, Zhongfang Chen","doi":"10.1002/celc.202500019","DOIUrl":"https://doi.org/10.1002/celc.202500019","url":null,"abstract":"As the demand for high-performance and reliable energy storage devices continues to rise, identifying new anode materials is crucial for advancing Li-ion battery (LIB) technology. Inspired by recent experimental breakthroughs in synthesizing two-dimensional transition metal carbo-chalcogenides (2D-TMCCs), density functional theory calculations are performed to systematically explore their sulfide variants (TM2S2C) spanning all 3d transition metals in three possible phases. Through comprehensive evaluations of thermodynamic, dynamic, mechanical, and thermal stabilities, seven stable 2D-TMCC candidates are identified, four of which exhibit superior battery performance. Notably, V-based 2D-TMCCs across all three phases deliver moderate open-circuit voltages (OCV), efficient Li diffusion, and substantial capacities, making them promising candidates for industrial applications without requiring specific phase controls. A Cr-based 2D-TMCC (with sulfur atoms above carbon atoms) offers the highest capacity of 515.40 mAh g−1, the lowest Li diffusion barrier, and an optimal OCV, highlighting its appealing potential as an anode material for LIBs. Furthermore, significant Li–Li spacing and pronounced electron delocalization in these four 2D-TMCCs suggest a reduced risk of dendrite formation. This work expands the 2D-TMCC family and identifies up-and-coming candidates for next-generation LIB anodes.","PeriodicalId":142,"journal":{"name":"ChemElectroChem","volume":"12 19","pages":""},"PeriodicalIF":3.5,"publicationDate":"2025-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://chemistry-europe.onlinelibrary.wiley.com/doi/epdf/10.1002/celc.202500019","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145228110","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Metal–Support Interaction Between Titanium Oxynitride and Pd Nanoparticles as a Tool for Tuning the Selectivity of Electrocatalytic Hydrogenation of Furfural 氧化氮化钛与钯纳米粒子之间的金属-载体相互作用作为调节糠醛电催化加氢选择性的工具

IF 3.5 4区化学

ChemElectroChem Pub Date : 2025-07-28 DOI: 10.1002/celc.202500103

Nik Maselj, Jan Trputec, Martin Šala, Kristina Mervič, Ivan Marić, Francisco Ruiz-Zepeda, Marjan Bele, Vasko Jovanovski, Nejc Hodnik, Primož Jovanovič

{"title":"Metal–Support Interaction Between Titanium Oxynitride and Pd Nanoparticles as a Tool for Tuning the Selectivity of Electrocatalytic Hydrogenation of Furfural","authors":"Nik Maselj, Jan Trputec, Martin Šala, Kristina Mervič, Ivan Marić, Francisco Ruiz-Zepeda, Marjan Bele, Vasko Jovanovski, Nejc Hodnik, Primož Jovanovič","doi":"10.1002/celc.202500103","DOIUrl":"10.1002/celc.202500103","url":null,"abstract":"Electrocatalytic hydrogenation (ECH) offers a sustainable alternative to conventional hydrogenation of biomass-derived compounds by using cathodic potential instead of heat and molecular hydrogen. This study explores the ECH of furfural under acidic conditions, focusing on how metal–support interactions influence the performance of Pd-based catalysts. Two systems are compared: Pd on carbon (Pd/C) and Pd supported on titanium oxynitride-graphene oxide (Pd–TiONx/GO). Pd–TiONx/GO exhibits lower oxophilicity and a higher proton adsorption tendency than Pd/C. Additionally, its surface shows a more negative charge, indicated by a cathodic shift (≈10 mV) in the potential of zero total charge measured via N2O reduction. These differences significantly affect catalytic behavior. While Pd/C shows roughly twice the activity for converting furfural to furfuryl alcohol (FA), Pd–TiONx/GO is over 100 times more active in producing 2-methylfuran (2-MF) and also enhances the competitive hydrogen evolution reaction. This suggests Pd–TiONx/GO has lower surface coverage by furfural and FA, allowing for more hydrogen adsorption and favouring 2-MF formation. Overall, the study demonstrates that Pd's electrosorptive and catalytic properties can be tuned via electronic effects from the TiONx support, enabling selective manipulation of ECH pathways.","PeriodicalId":142,"journal":{"name":"ChemElectroChem","volume":"12 18","pages":""},"PeriodicalIF":3.5,"publicationDate":"2025-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://chemistry-europe.onlinelibrary.wiley.com/doi/epdf/10.1002/celc.202500103","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145102369","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Elucidating the Influence of Catalyst Cycling and Activation on the Activity of Ni-based Layered Double Hydroxides for Electrochemical Oxidation of Ethylene Glycol to Formate 阐明催化剂循环和活化对镍基层状双氢氧化物电化学氧化乙二醇生成甲酸酯活性的影响

IF 3.5 4区化学

ChemElectroChem Pub Date : 2025-07-27 DOI: 10.1002/celc.202500190

Ina Kohlhaas, Regina Palkovits

{"title":"Elucidating the Influence of Catalyst Cycling and Activation on the Activity of Ni-based Layered Double Hydroxides for Electrochemical Oxidation of Ethylene Glycol to Formate","authors":"Ina Kohlhaas, Regina Palkovits","doi":"10.1002/celc.202500190","DOIUrl":"10.1002/celc.202500190","url":null,"abstract":"The efficient production of green hydrogen is a crucial step toward the development of economically effective ecological alternatives to fossil fuels. However, current water electrolysis still struggles with the high overpotential of the oxygen evolution reaction (OER). Replacing OER with electrochemical ethylene glycol oxidation (EGOR) would not only decrease the needed reaction potential for anode oxidation but also make use of the large amounts of polyethylene terephthalate (PET) waste produced every day. Ni-based layered double hydroxides (LDH) have previously found increased attention for their cost effectiveness, stability, and high catalytic activity in OER. This work discusses the applicability of Ni-based LDH materials in EGOR and investigates their catalytic ability in electrolysis, taking commonly used activation methods like cyclic voltammetry conditioning and chronoamperometric activation into account. The results confirm highly selective oxidation towards formate with yields of up to 30.7% for NiMn LDH and NiCo LDH at 1.4 V versus RHE, reaching Faraday efficiencies and carbon balances >90%.","PeriodicalId":142,"journal":{"name":"ChemElectroChem","volume":"12 17","pages":""},"PeriodicalIF":3.5,"publicationDate":"2025-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://chemistry-europe.onlinelibrary.wiley.com/doi/epdf/10.1002/celc.202500190","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144927786","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Understanding the Operation of a Gas Diffusion Electrode Setup for the Oxygen Reduction Reaction: Experiment versus 3D Multiphysics Modeling 了解氧气还原反应的气体扩散电极设置的操作：实验与3D多物理场建模

IF 3.5 4区化学

ChemElectroChem Pub Date : 2025-07-26 DOI: 10.1002/celc.202500172

Erwan Tardy, Raphaël Riasse, Florent Vandenberghe, Florence Druart, Marian Chatenet, Antoine Bonnefont

{"title":"Understanding the Operation of a Gas Diffusion Electrode Setup for the Oxygen Reduction Reaction: Experiment versus 3D Multiphysics Modeling","authors":"Erwan Tardy, Raphaël Riasse, Florent Vandenberghe, Florence Druart, Marian Chatenet, Antoine Bonnefont","doi":"10.1002/celc.202500172","DOIUrl":"10.1002/celc.202500172","url":null,"abstract":"Proton exchange membrane fuel cells (PEMFC) require highly efficient oxygen reduction reaction (ORR) electrocatalysts. The intrinsic ORR performance of advanced ORR catalysts (measured in rotating disk electrode, RDE) is often not obtained in membrane electrode assembly (MEA), which denotes for RDE inability to forecast intrinsic activity at large current density/low potential, owing to severe mass-transport limitation. The gas diffusion electrode (GDE) is a relevant tool to assess the intrinsic ORR activity of catalysts at high current density/low potential, so it enables to better forecast their performance in PEMFC MEA. Herein, ORR kinetics is studied in a GDE via cyclic voltammetry and electrochemical impedance spectroscopy; the polarization curve is modeled using multiphysics and multicomponent 3D simulations. The model allows to investigate the interplay between the electrochemical kinetics and the mass-transport of reactant and products in the flow channels of the monopolar plate, gas diffusion layer, porous electrode, and solution. The simulations highlight the significant impact of partial water flooding in the catalyst layer—even at a minimal thickness of 0.6 μm—on the shape of the GDE polarization curves and suggest that mass-transport limitation inside the catalyst layer may be limiting in a GDE setup, specifically at high current density.","PeriodicalId":142,"journal":{"name":"ChemElectroChem","volume":"12 17","pages":""},"PeriodicalIF":3.5,"publicationDate":"2025-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://chemistry-europe.onlinelibrary.wiley.com/doi/epdf/10.1002/celc.202500172","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144927816","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Front Cover: Studying the Ingress of Ag Nanoparticles into Imprinted Nanocavities by Nanoimpact Electrochemistry (ChemElectroChem 15/2025) 封面：纳米冲击电化学研究Ag纳米颗粒进入印迹纳米空腔（ChemElectroChem 15/2025）

IF 3.5 4区化学

ChemElectroChem Pub Date : 2025-07-25 DOI: 10.1002/celc.70021

Hila Sagi-Cohen, Pavel Savchenko, Daniel Mandler

引用次数: 0

Wireless Bipolar Electrochromic Sensor Based on Metal–Organic Framework-Derived NiCo Bimetallic Carbon Nanocomposite for Visual Detection of Uric Acid 基于金属-有机框架衍生镍双金属碳纳米复合材料的无线双极电致变色传感器视觉检测尿酸

IF 3.5 4区化学

ChemElectroChem Pub Date : 2025-07-24 DOI: 10.1002/celc.202500250

Qunyan Zhu, Huahua Dong, Guoliang Lu, Kaige Qv, Wensheng Yang, Lin Zhang

{"title":"Wireless Bipolar Electrochromic Sensor Based on Metal–Organic Framework-Derived NiCo Bimetallic Carbon Nanocomposite for Visual Detection of Uric Acid","authors":"Qunyan Zhu, Huahua Dong, Guoliang Lu, Kaige Qv, Wensheng Yang, Lin Zhang","doi":"10.1002/celc.202500250","DOIUrl":"10.1002/celc.202500250","url":null,"abstract":"Electrochromic sensors offer compelling advantages in health monitoring owing to their ability to convert electrochemical signals into visual outputs. However, achieving interference-free and highly sensitive detection of biomolecules remains challenging, mainly due to the challenges of integrating electrochromic materials with (enzymatic) catalysts while preserving anti-interference performance. In this work, a closed bipolar electrochromic (cBPEC) sensor for wireless and visual detection of uric acid (UA) is presented, utilizing a NiCo bimetallic embedded nitrogen-doped carbon (NiCo@NC) nanocomposite. In the cBPEC configuration, the polarized anode, modified with NiCo@NC, enables the electrocatalytic oxidation of UA. The generated electrons are then transferred to the physically separated polarized cathode, modified with a Prussian blue (PB) film, where PB reduction produces a color change quantitatively correlated with UA concentration. The cBPEC sensor exhibits excellent reproducibility, reusability, and selectivity, with a linear range for UA concentration ranging from 50 to 800 μM and a detection limit of 38 μM. The practical utility of the sensor is successfully validated by detecting UA in fetal bovine serum samples, yielding recoveries of 98.3–102.6% (relative standard deviations ≤3.37%), thus demonstrating its potential for biomedical applications in UA monitoring.","PeriodicalId":142,"journal":{"name":"ChemElectroChem","volume":"12 16","pages":""},"PeriodicalIF":3.5,"publicationDate":"2025-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://chemistry-europe.onlinelibrary.wiley.com/doi/epdf/10.1002/celc.202500250","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144881554","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0