Electrochemistry Communications最新文献

Copper electrodeposition from alanine alkaline baths. A microkinetic study

IF 4.7 3区工程技术

Electrochemistry Communications Pub Date : 2025-03-10 DOI: 10.1016/j.elecom.2025.107909

Marco Piccinni , Davide Carrea , Michael Casale , Diego Colombara

引用次数: 0

A novel reactivity descriptor for MN4 molecular catalysts for the oxidation of 2-mercaptoethanol and of thioglycolic acid: The Electrochemical Hardness

IF 4.7 3区工程技术

Electrochemistry Communications Pub Date : 2025-03-08 DOI: 10.1016/j.elecom.2025.107910

Laura Scarpetta-Pizo , Ricardo Venegas , Ingrid Ponce , José H. Zagal

{"title":"A novel reactivity descriptor for MN4 molecular catalysts for the oxidation of 2-mercaptoethanol and of thioglycolic acid: The Electrochemical Hardness","authors":"Laura Scarpetta-Pizo , Ricardo Venegas , Ingrid Ponce , José H. Zagal","doi":"10.1016/j.elecom.2025.107910","DOIUrl":"10.1016/j.elecom.2025.107910","url":null,"abstract":"<div><div>This manuscript describes a novel reactivity descriptor for Fe phthalocyanines molecular catalysts confined on the surface of OPG electrodes. The descriptor Δ<em>E</em>°’cat. is the gap in potential between the <em>E</em>°Fe(III)/(II) and <em>E</em>°Fe(II)/(I) redox processes for each FeN4 catalyst. This descriptor, labeled as the <em>electrochemical hardness</em> Δ<em>E</em>°’<sub>cat</sub>. Was examined using FeN4 macrocyclic complexes for the electrooxidation of 2-mercaptoethanol (2-ME) and thioglycolic acid TGA. Our findings reveal that the reactivity as log log(<em>j</em>/Γ)<em>E</em>, plotted versus <em>E</em>°Fe(III)/(II) or <em>E</em>°Fe(II)/(I) give two linear correlations. The activity log(<em>j</em>/Γ)<sub><em>E</em></sub> in both cases decreases with the redox potential of each FeN4 catalyst. In contrast log(<em>j</em>/Γ)<sub><em>E</em></sub>, or log (<em>TOF)</em><sub><em>E</em></sub>, increase with Δ<em>E</em>°’<sub>cat..</sub> The Fe<img>S binding energy Δ<em>E</em>°’<sub>cat.</sub> Correlates linearly with Δ<em>E</em>°’<sub>cat.</sub> so the softer the system the greater the binding energy and the lower the catalytic activity.</div></div>","PeriodicalId":304,"journal":{"name":"Electrochemistry Communications","volume":"174 ","pages":"Article 107910"},"PeriodicalIF":4.7,"publicationDate":"2025-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143620272","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Electrocatalysis of free chlorine on hydrogen oxidation

IF 4.7 3区工程技术

Electrochemistry Communications Pub Date : 2025-03-01 DOI: 10.1016/j.elecom.2025.107902

Kye Hak Ko , Kum Hyok Ri , Song Chol Jong , Wi Song Pak

{"title":"Electrocatalysis of free chlorine on hydrogen oxidation","authors":"Kye Hak Ko , Kum Hyok Ri , Song Chol Jong , Wi Song Pak","doi":"10.1016/j.elecom.2025.107902","DOIUrl":"10.1016/j.elecom.2025.107902","url":null,"abstract":"<div><div>A novel view of the electrocatalysis of free chlorine on hydrogen oxidation was proposed by cyclic voltammetry (CV) in seawater solutions. Since seawater has good pH buffering from its composition (bicarbonate, carbonate, borate, etc.), there is no need for the addition of any supporting electrolyte during voltammetric analysis. In CV experiment using a Pt disk electrode, the peak of hydrogen oxidation reaction (HOR) was formed at about −0.8 V during the reverse scan and its height has correlated with increasing contents of free chlorine present in seawater solution. All experimental results showed that free chlorine exhibited clear electrocatalysis on HOR. It gives the possibility of the determination of free chlorine using its electrocatalysis on HOR. Our attempt to quantify free chlorine by electrocatalysis of free chlorine on HOR is thus a new perspective compared to many studies that have been conducted on direct detection of free chlorine using its own electrochemical properties. In a new electroanalytical method of free chlorine using the Pt disk electrode, the corresponding calibration curve exhibited a linear response in the content range from 0.02 to 0.4 mg L<sup>−1</sup> with a correlation coefficient of 0.998. The limit of detection (LOD) calculated from S/N = 3 was 0.012 mg L<sup>−1</sup> and the relative standard deviation (<em>RSD</em>) obtained was 4.4 %.</div></div>","PeriodicalId":304,"journal":{"name":"Electrochemistry Communications","volume":"174 ","pages":"Article 107902"},"PeriodicalIF":4.7,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143629566","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Non-invasive wearable electrochemical sensors for continuous glucose monitoring 用于连续葡萄糖监测的非侵入式可穿戴电化学传感器

IF 4.7 3区工程技术

Electrochemistry Communications Pub Date : 2025-02-20 DOI: 10.1016/j.elecom.2025.107894

Sameera Sh. Mohammed Ameen , Khalid M. Omer , Fotouh R. Mansour , Alaa Bedair , Mahmoud Hamed

{"title":"Non-invasive wearable electrochemical sensors for continuous glucose monitoring","authors":"Sameera Sh. Mohammed Ameen , Khalid M. Omer , Fotouh R. Mansour , Alaa Bedair , Mahmoud Hamed","doi":"10.1016/j.elecom.2025.107894","DOIUrl":"10.1016/j.elecom.2025.107894","url":null,"abstract":"<div><div>Diabetes is an increasingly prevalent chronic condition affecting millions worldwide. Regularly monitoring blood sugar levels is essential for managing the disease effectively. The growing importance of wearable sensors across diverse sectors lies in their ability to non-invasively monitor health parameters, support disease management, improve safety, and offer valuable research insights. Non-invasive blood glucose monitoring has become a global focus of research, offering hope for many patients. Continuous glucose monitoring surpasses the limitations of traditional finger-stick tests, enabling timely interventions for better management. This review article examines recent progress and obstacles in developing non-invasive epidermal electrochemical glucose sensors. It explores methods utilizing biological fluids such as skin interstitial fluid, sweat, tears, and saliva, highlighting both advantages and limitations in device advancements. Furthermore, the review outlines future directions in glucose detection technology and its potential to enhance patients' quality of life.</div></div>","PeriodicalId":304,"journal":{"name":"Electrochemistry Communications","volume":"173 ","pages":"Article 107894"},"PeriodicalIF":4.7,"publicationDate":"2025-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143471523","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Ternary composites based next-generation supercapacitors electrode material: Emerging trends

IF 4.7 3区工程技术

Electrochemistry Communications Pub Date : 2025-02-20 DOI: 10.1016/j.elecom.2025.107893

Esha Ghazanfar , Hajira Zahoor , Nasser S. Awwad , Hala A. Ibrahium , Sadullah Mir , Ishtiaq Ahmed

{"title":"Ternary composites based next-generation supercapacitors electrode material: Emerging trends","authors":"Esha Ghazanfar , Hajira Zahoor , Nasser S. Awwad , Hala A. Ibrahium , Sadullah Mir , Ishtiaq Ahmed","doi":"10.1016/j.elecom.2025.107893","DOIUrl":"10.1016/j.elecom.2025.107893","url":null,"abstract":"<div><div>The rapid advancements in energy storage and electronic applications have driven extensive research on conducting polymers, metal oxides, and carbonaceous materials due to their exceptional electrochemical and structural properties. Their unique physicochemical properties, such as high electrical conductivity, redox activity, and tunable surface chemistry, make them ideal candidates for supercapacitors, batteries, and sensors. Recent developments have focused on optimizing their synthesis, morphology, and hybridization to enhance conductivity, charge storage capacity, and long-term stability. Innovative strategies, including Nano structuring, doping, and surface engineering, have led to significant improvements in electrochemical performance. Furthermore, the integration of these materials into hybrid architecture has shown remarkable synergy, offering superior energy storage capabilities for supercapacitors and batteries. The CPs exhibit better conductivity and high theoretical capacitance but due to their cyclic instability, carbonaceous materials like graphene oxide are often reinforced with CPs. Still, the challenge of enhanced energy density cannot be addressed by binary composite and the need for ternary composite arises. Due to the outstanding specific capacitance of 100–2000 F/g with their redox activities the TMO are prominent electrode materials. This review highlights the importance of conducting polymers nanocomposites reinforced with graphene oxide and transition metal oxides in boosting electrical conductance, surface area, and charge storage ability of supercapacitors. Moreover, this review includes the latest literature and future opportunities in the emerging field of advanced electrode materials for supercapacitors. The review aims to offer valuable insights into the rational design of hybrid materials for next-generation energy storage technologies.</div></div>","PeriodicalId":304,"journal":{"name":"Electrochemistry Communications","volume":"174 ","pages":"Article 107893"},"PeriodicalIF":4.7,"publicationDate":"2025-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143480662","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Recycled niobium oxide nanochannels from spent lithium-ion batteries: Enhanced performance for supercapacitor applications

IF 4.7 3区工程技术

Electrochemistry Communications Pub Date : 2025-02-19 DOI: 10.1016/j.elecom.2025.107892

Yeonjin Kim, JeongEun Yoo, Kiyoung Lee

{"title":"Recycled niobium oxide nanochannels from spent lithium-ion batteries: Enhanced performance for supercapacitor applications","authors":"Yeonjin Kim, JeongEun Yoo, Kiyoung Lee","doi":"10.1016/j.elecom.2025.107892","DOIUrl":"10.1016/j.elecom.2025.107892","url":null,"abstract":"<div><div>Lithium-ion batteries (LIBs) are essential for modern energy storage but pose significant environmental and safety challenges due to the increasing volume of spent batteries. This study explores the reutilization of niobium oxide nanochannels (NONCs), initially employed as LIB anodes, as electrodes for supercapacitors. NONC electrodes, fabricated via electrochemical anodization, underwent structural and crystallographic transformations during charge-discharge cycling. The key findings demonstrate that these transformations, including an amorphous-to-crystalline phase transition, significantly improved ion transport efficiency and enhanced specific capacitance from 6.30 mF cm<sup>−2</sup> to 18.54 mF cm<sup>−2</sup>. Highly crystalline NONC structures exhibited superior stability, maintaining their morphology and active surface area, thereby optimizing charge storage mechanisms. In contrast, substantial structural changes resulted in decreased capacitive performance due to a reduction in surface area and an increase in diffusion-controlled contributions. The study underscores a sustainable strategy for reusing LIB materials, highlighting the potential of waste NONC electrodes for high-performance supercapacitor applications. By bridging the gap between recycling and advanced energy storage, this work supports the principles of a circular economy, offering a scalable solution to LIB waste management. These findings provide valuable insights into the relationship between material properties, structural integrity, and electrochemical performance, contributing to the development of sustainable energy technologies.</div></div>","PeriodicalId":304,"journal":{"name":"Electrochemistry Communications","volume":"173 ","pages":"Article 107892"},"PeriodicalIF":4.7,"publicationDate":"2025-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143479545","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Electrode performance of P′2-Na2/3[Mn1-xScx]O2 in sodium batteries

IF 4.7 3区工程技术

Electrochemistry Communications Pub Date : 2025-02-19 DOI: 10.1016/j.elecom.2025.107891

Kodai Moriya, Shinichi Kumakura, Eun Jeong Kim, Ryoichi Tatara, Shinichi Komaba

引用次数: 0

Self-supported and integrated Co3Al-layered bimetallic hydroxide nanoribbons on nickel foam enable efficient electrocatalytic water decomposition

IF 4.7 3区工程技术

Electrochemistry Communications Pub Date : 2025-02-07 DOI: 10.1016/j.elecom.2025.107890

Yan-Ming Jia, Fu Yang, Li-Juan Sun, Zhi-Yan Bai, Yu-Long Xie

引用次数: 0

Pulsed power capacitor design based on 3D inkjet printing

IF 4.7 3区工程技术

Electrochemistry Communications Pub Date : 2025-02-03 DOI: 10.1016/j.elecom.2025.107876

Xinxin Cao , Shixuan Mei , Jinjin Hao , Qikun Jia , Bolin Qin , Zhikuan Xu , Fei Lv , Kuanwei Zhang , Xueli Nan

{"title":"Pulsed power capacitor design based on 3D inkjet printing","authors":"Xinxin Cao , Shixuan Mei , Jinjin Hao , Qikun Jia , Bolin Qin , Zhikuan Xu , Fei Lv , Kuanwei Zhang , Xueli Nan","doi":"10.1016/j.elecom.2025.107876","DOIUrl":"10.1016/j.elecom.2025.107876","url":null,"abstract":"<div><div>This paper presents a new method for manufacturing multilayer chip capacitors using three-dimensional inkjet printing technology. Compared with the traditional method of manufacturing multilayer chip capacitors, it enables the design of complex structures without molds. It has the advantages of high integration, integrated printing, and simple operation. In addition, the electrode structure of the conventional capacitor is optimized by replacing the original electrode tip with a ‘circular’ pressure-even electrode structure. The effects of different circle radii on the electric field distribution inside the capacitor were analyzed using Comsol simulation software. The results show that the homogeneous pressure electrode structure proposed in this paper can effectively improve the electric field concentration at the electrode tip of the capacitor. Finally, the capacitor was fabricated using 3D inkjet printing technology, and the capacitance value, voltage withstand value, and other parameters of the capacitor were measured. The capacitor with an even-pressure electrode structure was able to improve the breakdown voltage by about 22 %, which is consistent with the expected experimental results. The possibility of fabricating pulsed power capacitors using 3D inkjet printing technology was confirmed.</div></div>","PeriodicalId":304,"journal":{"name":"Electrochemistry Communications","volume":"173 ","pages":"Article 107876"},"PeriodicalIF":4.7,"publicationDate":"2025-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143395711","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Thin hafnia layer on silicon – Study of interfacial charging and charge transfer by resistometry and photoelectrochemistry

IF 4.7 3区工程技术

Electrochemistry Communications Pub Date : 2025-02-01 DOI: 10.1016/j.elecom.2025.107871

Aldis Šilėnas, Laurynas Staišiūnas, Putinas Kalinauskas, Konstantinas Leinartas, Asta Grigucevičienė, Andžej Lučun, Skirmantė Tutlienė, Eimutis Juzeliūnas

{"title":"Thin hafnia layer on silicon – Study of interfacial charging and charge transfer by resistometry and photoelectrochemistry","authors":"Aldis Šilėnas, Laurynas Staišiūnas, Putinas Kalinauskas, Konstantinas Leinartas, Asta Grigucevičienė, Andžej Lučun, Skirmantė Tutlienė, Eimutis Juzeliūnas","doi":"10.1016/j.elecom.2025.107871","DOIUrl":"10.1016/j.elecom.2025.107871","url":null,"abstract":"<div><div>Oxide layers on silicon (Si) can effectively reduce the surface recombination velocity due to chemical and field-effect passivation, thereby increasing efficiency of PV devices. We propose simple experimental technique that provides information on interfacial Si/oxide charge. Here, interfacial charging in atmosphere of crystalline p-Si with thin hafnia layers deposited using atomic layer deposition and sol–gel techniques were studied by means of the transverse electric resistometry. The samples exhibited the current–voltage (I–V) characteristics, which were analogous to those known for a p-n junction when the Si surface is negatively charged. We also demonstrate the detection of charging effects in electrolyte by measuring the photo-induced capacitance, potential, resistance, and current. The charge transfer inhibition during hydrogen evolution reaction is shown to depend on interfacial charging effects rather than resistance of HfO<sub>2</sub> layer. The proposed methodologies can be extended to a wider range of passivating oxides on semiconductors.</div></div>","PeriodicalId":304,"journal":{"name":"Electrochemistry Communications","volume":"171 ","pages":"Article 107871"},"PeriodicalIF":4.7,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143132494","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0