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Cover Picture: (Electroanalysis 6/2025) 封面图片：（Electroanalysis 6/2025）
IF 2.7 3区 化学
Electroanalysis Pub Date : 2025-05-28 DOI: 10.1002/elan.202580106
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引用次数: 0
Electrochemical Sensor Based on AuNPs/Cu/C for Simultaneous Detection of Acetaminophen and P-Aminophenol 基于AuNPs/Cu/C电化学传感器同时检测对乙酰氨基酚和对氨基酚
IF 2.7 3区 化学
Electroanalysis Pub Date : 2025-05-27 DOI: 10.1002/elan.12050
Sumin Xu, Wenjing Liu, Jinjin Zhang, Jianying Qu
{"title":"Electrochemical Sensor Based on AuNPs/Cu/C for Simultaneous Detection of Acetaminophen and P-Aminophenol","authors":"Sumin Xu,&nbsp;Wenjing Liu,&nbsp;Jinjin Zhang,&nbsp;Jianying Qu","doi":"10.1002/elan.12050","DOIUrl":"https://doi.org/10.1002/elan.12050","url":null,"abstract":"<p>In this work, Cu nanosphere-anchored Cu-based MOF derivants were synthesized by high-temperature calcination using Cu(BDC) as precursors and then combined with gold nanoparticles to give AuNPs/Cu/C composites. The proposed materials were characterized by SEM, XRD, XPS, FTIR, and EIS. Based on these composites, a sensor was constructed, which showed good electrocatalytic activities to the redox of acetaminophen (PA) and P-aminophenol (4-AP) and could be used to detect them simultaneously. Under optimal experimental conditions, the linear ranges for detection of PA and 4-AP were 0.50–150.00 and 0.50–120.00 μM with the detection limits of 0.056 and 0.084 μM, respectively. Thanks to the hierarchical and porous structural characteristics of the Cu/C material and its synergistic effect with AuNPs, it shows good sensing performance in the simultaneous detection of PA and 4-AP. The sensor has wider linear ranges, lower detection limits, good selectivities, and higher accuracies with potential environmental detection application prospects.</p>","PeriodicalId":162,"journal":{"name":"Electroanalysis","volume":"37 5","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144140802","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Electrochemical Sensor Based on AuNPs/Cu/C for Simultaneous Detection of Acetaminophen and P-Aminophenol 基于AuNPs/Cu/C电化学传感器同时检测对乙酰氨基酚和对氨基酚
IF 2.7 3区 化学
Electroanalysis Pub Date : 2025-05-27 DOI: 10.1002/elan.12050
Sumin Xu, Wenjing Liu, Jinjin Zhang, Jianying Qu
{"title":"Electrochemical Sensor Based on AuNPs/Cu/C for Simultaneous Detection of Acetaminophen and P-Aminophenol","authors":"Sumin Xu,&nbsp;Wenjing Liu,&nbsp;Jinjin Zhang,&nbsp;Jianying Qu","doi":"10.1002/elan.12050","DOIUrl":"https://doi.org/10.1002/elan.12050","url":null,"abstract":"<p>In this work, Cu nanosphere-anchored Cu-based MOF derivants were synthesized by high-temperature calcination using Cu(BDC) as precursors and then combined with gold nanoparticles to give AuNPs/Cu/C composites. The proposed materials were characterized by SEM, XRD, XPS, FTIR, and EIS. Based on these composites, a sensor was constructed, which showed good electrocatalytic activities to the redox of acetaminophen (PA) and P-aminophenol (4-AP) and could be used to detect them simultaneously. Under optimal experimental conditions, the linear ranges for detection of PA and 4-AP were 0.50–150.00 and 0.50–120.00 μM with the detection limits of 0.056 and 0.084 μM, respectively. Thanks to the hierarchical and porous structural characteristics of the Cu/C material and its synergistic effect with AuNPs, it shows good sensing performance in the simultaneous detection of PA and 4-AP. The sensor has wider linear ranges, lower detection limits, good selectivities, and higher accuracies with potential environmental detection application prospects.</p>","PeriodicalId":162,"journal":{"name":"Electroanalysis","volume":"37 5","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144140810","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Surfactant-Free Platinum Catalysts for Enhanced Stability and Efficiency in Electrochemical Toluene Hydrogenation 提高甲苯电化学加氢稳定性和效率的无表面活性剂铂催化剂
IF 2.7 3区 化学
Electroanalysis Pub Date : 2025-05-19 DOI: 10.1002/elan.12057
Ju-Eon Park, Ara Jo
{"title":"Surfactant-Free Platinum Catalysts for Enhanced Stability and Efficiency in Electrochemical Toluene Hydrogenation","authors":"Ju-Eon Park,&nbsp;Ara Jo","doi":"10.1002/elan.12057","DOIUrl":"https://doi.org/10.1002/elan.12057","url":null,"abstract":"<p>Liquid organic hydrogen carriers are promising materials for hydrogen storage and transportation, crucial for advancing renewable energy systems. These carriers enable hydrogen storage and release through hydrogenation and dehydrogenation processes, respectively. This study investigated the electrochemical hydrogenation of toluene to methylcyclohexane using various Pt/C catalysts. Despite the well-established effectiveness of commercial Pt/C (cPt/C) as an electrochemical catalyst in aqueous systems, it showed an unexpected decline in catalytic activity for toluene hydrogenation. To address this, Pt/C catalysts were synthesized with and without trisodium citrate (TSC). The catalyst without TSC (sPt/C (w/o TSC)) exhibited better stability and Faradaic efficiency with minimal nanoparticle aggregation. Fourier transform infrared spectroscopy (FTIR) analysis confirmed the presence and change of organic compounds on the catalyst surface that promote Pt nanoparticle aggregation. These findings underscore the need to consider surfactant effects when developing electrocatalysts for organic solvents, emphasizing the importance of surface chemistry in optimizing the stability of Pt/C catalysts.</p>","PeriodicalId":162,"journal":{"name":"Electroanalysis","volume":"37 5","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/elan.12057","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144085075","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Disposable Microfluidic Device for Continuous Long-Term Sampling with Integrated Ion-Selective Electrodes 用于集成离子选择电极连续长期取样的一次性微流体装置
IF 2.7 3区 化学
Electroanalysis Pub Date : 2025-05-19 DOI: 10.1002/elan.12058
Hao Yang, Hiroaki Suzuki
{"title":"Disposable Microfluidic Device for Continuous Long-Term Sampling with Integrated Ion-Selective Electrodes","authors":"Hao Yang,&nbsp;Hiroaki Suzuki","doi":"10.1002/elan.12058","DOIUrl":"https://doi.org/10.1002/elan.12058","url":null,"abstract":"<p>In the development of wearable sensing devices, a simple inexpensive mechanism to sample physiological fluids continuously at a constant flow rate for a long time is required. To meet this requirement, a simple paper-based microfluidic device with an ion-sensing function was fabricated. The device featured a fan-shaped paper structure conjugated to a rectangular segment, enabling continuous solution sampling at a constant flow rate for at least 60 min, unlike a simple rectangular paper strip. The flow rate was effectively elongated and adjusted by impregnating the entire paper area with poly(2-hydroxyethyl methacrylate). The fan-shaped structure was used for continuous sensing of ions. A reference electrode prepared by loading carbon nanotubes (CNTs) was used. Owing to the large capacitance of the CNTs and their lamination within plastic sheets, the potential drift could be suppressed within 5 mV over 60 min. Step changes in the concentrations of Na<sup>+</sup>, K<sup>+</sup>, NH<sub>4</sub><sup>+</sup>, and Ca<sup>2+</sup> were monitored by sampling solutions containing varying ion concentrations.</p>","PeriodicalId":162,"journal":{"name":"Electroanalysis","volume":"37 5","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144085076","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Surfactant-Free Platinum Catalysts for Enhanced Stability and Efficiency in Electrochemical Toluene Hydrogenation 提高甲苯电化学加氢稳定性和效率的无表面活性剂铂催化剂
IF 2.7 3区 化学
Electroanalysis Pub Date : 2025-05-19 DOI: 10.1002/elan.12057
Ju-Eon Park, Ara Jo
{"title":"Surfactant-Free Platinum Catalysts for Enhanced Stability and Efficiency in Electrochemical Toluene Hydrogenation","authors":"Ju-Eon Park,&nbsp;Ara Jo","doi":"10.1002/elan.12057","DOIUrl":"https://doi.org/10.1002/elan.12057","url":null,"abstract":"<p>Liquid organic hydrogen carriers are promising materials for hydrogen storage and transportation, crucial for advancing renewable energy systems. These carriers enable hydrogen storage and release through hydrogenation and dehydrogenation processes, respectively. This study investigated the electrochemical hydrogenation of toluene to methylcyclohexane using various Pt/C catalysts. Despite the well-established effectiveness of commercial Pt/C (cPt/C) as an electrochemical catalyst in aqueous systems, it showed an unexpected decline in catalytic activity for toluene hydrogenation. To address this, Pt/C catalysts were synthesized with and without trisodium citrate (TSC). The catalyst without TSC (sPt/C (w/o TSC)) exhibited better stability and Faradaic efficiency with minimal nanoparticle aggregation. Fourier transform infrared spectroscopy (FTIR) analysis confirmed the presence and change of organic compounds on the catalyst surface that promote Pt nanoparticle aggregation. These findings underscore the need to consider surfactant effects when developing electrocatalysts for organic solvents, emphasizing the importance of surface chemistry in optimizing the stability of Pt/C catalysts.</p>","PeriodicalId":162,"journal":{"name":"Electroanalysis","volume":"37 5","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/elan.12057","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144085077","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Disposable Microfluidic Device for Continuous Long-Term Sampling with Integrated Ion-Selective Electrodes 用于集成离子选择电极连续长期取样的一次性微流体装置
IF 2.7 3区 化学
Electroanalysis Pub Date : 2025-05-19 DOI: 10.1002/elan.12058
Hao Yang, Hiroaki Suzuki
{"title":"Disposable Microfluidic Device for Continuous Long-Term Sampling with Integrated Ion-Selective Electrodes","authors":"Hao Yang,&nbsp;Hiroaki Suzuki","doi":"10.1002/elan.12058","DOIUrl":"https://doi.org/10.1002/elan.12058","url":null,"abstract":"<p>In the development of wearable sensing devices, a simple inexpensive mechanism to sample physiological fluids continuously at a constant flow rate for a long time is required. To meet this requirement, a simple paper-based microfluidic device with an ion-sensing function was fabricated. The device featured a fan-shaped paper structure conjugated to a rectangular segment, enabling continuous solution sampling at a constant flow rate for at least 60 min, unlike a simple rectangular paper strip. The flow rate was effectively elongated and adjusted by impregnating the entire paper area with poly(2-hydroxyethyl methacrylate). The fan-shaped structure was used for continuous sensing of ions. A reference electrode prepared by loading carbon nanotubes (CNTs) was used. Owing to the large capacitance of the CNTs and their lamination within plastic sheets, the potential drift could be suppressed within 5 mV over 60 min. Step changes in the concentrations of Na<sup>+</sup>, K<sup>+</sup>, NH<sub>4</sub><sup>+</sup>, and Ca<sup>2+</sup> were monitored by sampling solutions containing varying ion concentrations.</p>","PeriodicalId":162,"journal":{"name":"Electroanalysis","volume":"37 5","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144085138","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Gelatın-Modıfıed Spınach (Spinacia Oleracea) Homogenate-Based Bıosensor System for Detectıng Phenylketonurıa
IF 2.7 3区 化学
Electroanalysis Pub Date : 2025-05-14 DOI: 10.1002/elan.12048
Asude Senolsun, Erol Akyilmaz
{"title":"Gelatın-Modıfıed Spınach (Spinacia Oleracea) Homogenate-Based Bıosensor System for Detectıng Phenylketonurıa","authors":"Asude Senolsun,&nbsp;Erol Akyilmaz","doi":"10.1002/elan.12048","DOIUrl":"https://doi.org/10.1002/elan.12048","url":null,"abstract":"<p>In this study, for the first time in this field, a biosensor system based on gold nanoparticle/gelatin/glutaraldehyde(AuNP/GE/GA) modified spinach homogenate was developed for the determination of L-phenylalanine, which can be an alternative and new method in the detection of phenylketonuria disease. For this purpose, in this study, a new biosensor system based on AuNP/GE/GA-modified spinach homogenate was developed for the rapid, specific, sensitive, and reproducible determination of L-phenylalanine. With the designed biosensor, measurements were taken in the potential range of (−0.3 to 0.0 V) using the differential pulse voltammetry method in the medium containing tetrahydrobiopterin. The linear range for L-phenylalanine was determined to be 5–100 µM. With the developed AuNP/GE/GA-modified spinach homogenate- based biosensor, the limit of detection was set at 2.09 µM. Response time was calculated as 10 s. One of the most important and applicable advantages of the developed biosensor was that it enables rapid, selective, repeatable, and sensitive determination without requiring expensive equipment.</p>","PeriodicalId":162,"journal":{"name":"Electroanalysis","volume":"37 5","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143950190","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Gelatın-Modıfıed Spınach (Spinacia Oleracea) Homogenate-Based Bıosensor System for Detectıng Phenylketonurıa
IF 2.7 3区 化学
Electroanalysis Pub Date : 2025-05-14 DOI: 10.1002/elan.12048
Asude Senolsun, Erol Akyilmaz
{"title":"Gelatın-Modıfıed Spınach (Spinacia Oleracea) Homogenate-Based Bıosensor System for Detectıng Phenylketonurıa","authors":"Asude Senolsun,&nbsp;Erol Akyilmaz","doi":"10.1002/elan.12048","DOIUrl":"https://doi.org/10.1002/elan.12048","url":null,"abstract":"<p>In this study, for the first time in this field, a biosensor system based on gold nanoparticle/gelatin/glutaraldehyde(AuNP/GE/GA) modified spinach homogenate was developed for the determination of L-phenylalanine, which can be an alternative and new method in the detection of phenylketonuria disease. For this purpose, in this study, a new biosensor system based on AuNP/GE/GA-modified spinach homogenate was developed for the rapid, specific, sensitive, and reproducible determination of L-phenylalanine. With the designed biosensor, measurements were taken in the potential range of (−0.3 to 0.0 V) using the differential pulse voltammetry method in the medium containing tetrahydrobiopterin. The linear range for L-phenylalanine was determined to be 5–100 µM. With the developed AuNP/GE/GA-modified spinach homogenate- based biosensor, the limit of detection was set at 2.09 µM. Response time was calculated as 10 s. One of the most important and applicable advantages of the developed biosensor was that it enables rapid, selective, repeatable, and sensitive determination without requiring expensive equipment.</p>","PeriodicalId":162,"journal":{"name":"Electroanalysis","volume":"37 5","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143950191","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
MoC-Modified Metalorganic Framework-Derived Materials Facilitating Dendrite-Free Deposition of Lithium Metal moc修饰金属有机骨架衍生材料促进无枝晶锂金属沉积
IF 2.7 3区 化学
Electroanalysis Pub Date : 2025-05-13 DOI: 10.1002/elan.12053
Xuhai Pan, Yahong Liu, Hao Shen, Zhixiang Chen, Yucheng Zhu, Hao Ji, Min Hua, Juncheng Jiang
{"title":"MoC-Modified Metalorganic Framework-Derived Materials Facilitating Dendrite-Free Deposition of Lithium Metal","authors":"Xuhai Pan,&nbsp;Yahong Liu,&nbsp;Hao Shen,&nbsp;Zhixiang Chen,&nbsp;Yucheng Zhu,&nbsp;Hao Ji,&nbsp;Min Hua,&nbsp;Juncheng Jiang","doi":"10.1002/elan.12053","DOIUrl":"https://doi.org/10.1002/elan.12053","url":null,"abstract":"<p>In order to solve the problem of lithium dendrites, which leads to safety problems in lithium-ion batteries, this article starts from the perspective of the substrate itself. The excellent anode material MoC@Cu@C synthesised in the previous stage was compounded with lithium metal by electrochemical deposition. The lithium dendrite inhibition effect, inhibition mechanism and electrochemical performance of the composite anode are then investigated. Thanks to the lithiophilic nature of the nitrogen-doped organic functional groups of the MoC@Cu@C matrix, lithium metal can be uniformly deposited on the surface of the MoC@Cu@C matrix. The synergistic effect of the surface-rich carbon matrix and Cu nanoparticles enhances the migration rate of Li<sup>+</sup> on the one hand and effectively inhibits the volume expansion of Li metal on the other. The LFP/MoC@Cu@C–Li full cell has excellent cycling stability and rate performance. It has a specific capacity of 100 mAh g<sup>−1</sup> even after 150 cycles at a rate of 1 C. The Coulombic efficiency of the entire cycle is also close to 100% and stable cycling is guaranteed even at high current densities of 10 C.</p>","PeriodicalId":162,"journal":{"name":"Electroanalysis","volume":"37 5","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143938950","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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