Electrochimica Acta最新文献

{"title":"A highly sensitive electrochemical immunosensor based on PET/GO/pPd/MAb nanofiber-particles for metolachlor detection","authors":"Yongbin Qin ,&nbsp;Yani Jiang ,&nbsp;Zichen Zheng ,&nbsp;Ganghua Zhou ,&nbsp;Lifeng Zhang ,&nbsp;Chengyin Wang ,&nbsp;Yixiang Bian","doi":"10.1016/j.electacta.2024.145336","DOIUrl":"10.1016/j.electacta.2024.145336","url":null,"abstract":"<div><div>Herbicide-metolachlor (MA) residue seriously pollutes the environment and endangers human health. A novel electrochemical immunosensor featuring the surface-adhered nanofiber-particle films has been developed for the specific detection of metolachlor. The three-dimensional nanofiber-particle films, fabricated through the combination of nanomaterial modification techniques, including alkali treatment of polyethylene terephthalate (PET) and carboxylation of graphene oxide (GO), along with electrospinning technology, served as the platform for the immobilization of the catalyst p-Phenylenediamine (pPd) and the reactant metolachlor antibody (MAb). The sensor exhibited a satisfactory linear detection range (2.00 to 30.00 ng mL⁻¹), a low limit of detection (LOD, 0.17 ng mL⁻¹), and good repeatability and stability (detection activity ≥ 90.00 % after 10.00 uses/storage for 10.00 days, remaining at 80.00 % after 30 uses/storage). Furthermore, it demonstrated acceptable recovery rates (89.73 % to 92.78 %) in real sample detection. In the future, our sensor is anticipated to play a crucial role in detecting MA residues in crops.</div></div>","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"509 ","pages":"Article 145336"},"PeriodicalIF":5.5,"publicationDate":"2024-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142596627","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Silver-Tungsten induced codeposition: Influence of pH and carboxylic acid form in a DMH-based electrolyte","authors":"Quentin Orecchioni ,&nbsp;Marie-Pierre Gigandet ,&nbsp;Anna Krystianiak ,&nbsp;Joffrey Tardelli ,&nbsp;Jean-Yves Hihn","doi":"10.1016/j.electacta.2024.145335","DOIUrl":"10.1016/j.electacta.2024.145335","url":null,"abstract":"<div><div>Silver-tungsten coatings were successfully electrodeposited on platinum and copper substrates from a non-toxic 5.5-dimethylhydantoin electrolyte at low pH and two different carboxylic acid forms: citrate or tartrate. Tungsten contents remain at low levels compared to former works, but close to the values considered as optimal for functional properties without having to recourse to controversial substances such as thiourea. Electrochemical studies by linear sweep voltammetry allow to distinguish two typical behaviors and give interesting insight into the induced codeposition mechanism. Silver-tungsten codeposition only occurred at pH 2.0 and 3.5 using citrates and at pH 2.0 using tartrates, corresponding to the forms H₃Cit, H₂Cit^-2, and H₂Tar, respectively. No silver-tungsten reduction was possible with less than two protonated carboxyl groups on either tartrate or citrate ions. Separate silver and tungsten lattice are both present in the resulting alloy. Grain and crystallite sizes were observed by SEM. XPS investigations show that for our low W content alloys, silver is found to be metallic whereas tungsten is present in oxide form. The carbon peaks and also gaps between peaks when N is absent indicate that citrates are present in the coating, unlike DMH.</div></div>","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"509 ","pages":"Article 145335"},"PeriodicalIF":5.5,"publicationDate":"2024-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142596630","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhanced sodium storage in MXene transition metal chalcogenides anode through dual molten salt etching","authors":"Xiangrui Chen ,&nbsp;Chengdeng Wang ,&nbsp;Haofeng Shi ,&nbsp;Jinpeng Li ,&nbsp;Jiashuai Wang ,&nbsp;Zhi Wang ,&nbsp;Zhaokun Wang ,&nbsp;Liyuan Bai ,&nbsp;Yan Gao ,&nbsp;Guanyong Wang ,&nbsp;Yousong Gu ,&nbsp;Xiaoqin Yan","doi":"10.1016/j.electacta.2024.145334","DOIUrl":"10.1016/j.electacta.2024.145334","url":null,"abstract":"<div><div>Referred to as potential options for anodes in sodium-ion batteries, transition metal chalcogenides (TMCs) exhibit unique electronic and structural characteristics. However, the limited electrical conductivity inherent in them poses a hindrance to electron transport, while their tendency to undergo volumetric expansion during cycling exacerbates structural instability, thereby imposing constraints on practical applications. Herein, a dual molten salt etching strategy followed by a sulfidation-selenidation process was employed to anchor multi-component sulfides FeS₂/NiS and FeSe/NiSe onto conductive Ti₃C₂T_x MXene, achieving superior sodium storage performance. Owing to the enhanced Na⁺ and faster kinetics of electronic transport, mechanical strain is effectively reduced, and strong covalent interactions are formed at the interface, significant enhancement in the cycling stability is observed for the anodes of Ti₃C₂T_x@FeS₂/NiS and Ti₃C₂T_x@FeSe/NiSe (with specific capacities of 309.4 and 162.6 mAh g⁻¹, respectively, after 1000 cycles at 5 A g⁻¹, with a former retention capacity rate that can reach as high as 87.8 %) and exceptional rate performance (252.1 and 207.8 mAh g⁻¹, respectively, at 8 A g⁻¹). Furthermore, full cells assembled by pairing Ti₃C₂T_x@FeS₂/NiS and Ti₃C₂T_x@FeSe/NiSe with Na₃V₂(PO₄)₃ cathodes also demonstrate excellent cycling performance, with both configurations achieving up to 500 cycles. The suggested approach enables efficient utilization of byproducts from Lewis acidic etching, expanding possibilities for synthesizing high-performance anodes in sodium-ion batteries consisting of MXene and TMCs.</div></div>","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"509 ","pages":"Article 145334"},"PeriodicalIF":5.5,"publicationDate":"2024-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142596709","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"First-principle computational insights on Furan- and Thiophene- functionalized zinc-porphyrins as high performance organic cathodes for electrochemical energy storage systems","authors":"Marya K. Noor, Hiba A. Ali, Abdulilah Dawoud Bani-Yaseen","doi":"10.1016/j.electacta.2024.145234","DOIUrl":"https://doi.org/10.1016/j.electacta.2024.145234","url":null,"abstract":"Organic electrode materials (OEMs) are increasingly replacing conventional inorganic counterparts in metal ion batteries (MIBs) due to their cost-effectiveness and environmental compatibility. Porphyrin-based materials, particularly metalloporphyrins (M-Porph), have garnered significant attention for electrochemical energy storage systems (EESS) owing to their bipolar electrochemical reactivity, making them suitable as both cathodic and anodic materials. However, the correlation between their structure and performance needs further exploration. This computational study examines the redox properties, thermodynamics, and theoretical performance of Zinc(II)-Porphyrin (Zn-Porph) with furan and thiophene substituents. The redox potential (E°) of Zn-Porph changes by 0.17 V with thiophene substituents instead of furan. Thiophene stabilizes the LUMO by 0.105 eV, indicating enhanced electron affinity and faster electron-accepting processes, while the HOMO shows a 0.085 eV stabilization. Thermodynamic calculations reveal that the reduction process intermediates for Zinc(II)-thiophene-Porph are less stable (ΔΔG° = 0.12 eV) than those for furan, suggesting a more accelerated electrochemical process. Additionally, density of states (DOS) analysis of Zn-T18 shows a non-zero DOS at the Fermi energy, indicating available electronic states for occupancy and highlighting its conductive properties. Upon complexation with PF6¯, the Fermi level shifts, reflecting electronic state redistribution and stabilization. The oxidized form, Zn-T16, retains a non-zero DOS at the Fermi energy despite significant Fermi level shifts, ensuring continued electronic conductivity. These findings underscore the robustness and versatility of Zn-porphyrin cathodes in EESS, demonstrating their potential to meet the demands for efficient, cost-effective, and environmentally friendly energy storage solutions.","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"3 1","pages":""},"PeriodicalIF":6.6,"publicationDate":"2024-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142596708","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhanced electrochemical activity of boron doped cobalt oxide nanoparticles towards supercapacitor application","authors":"Duong Tuan Anh Nguyen ,&nbsp;Adugna Nigatu Alene ,&nbsp;Alebel Abebaw Teshager ,&nbsp;Ababay Ketema Worku ,&nbsp;Gietu Yirga Abate ,&nbsp;Hsin-Tien Li","doi":"10.1016/j.electacta.2024.145318","DOIUrl":"10.1016/j.electacta.2024.145318","url":null,"abstract":"<div><div>Doping via metal/nonmetal/metalloid dopants in to the crystal structural surface of cobalt oxide nanoparticles are promising for creating electroactive supercapacitors with excellent electrochemical performance. Herein, we fabricate boron doped cobalt oxide nanoparticles (B@Co₃O₄) via a facile co-precipitation route for supercapacitor applications. The incorporation of boron into cobalt oxide nanoparticles (3M B@Co₃O₄) brings a ∼4.2-fold increase in a specific surface area (548.126 m²g^-1), decrease in band gap energy and reduced in crystalline size. Consequently, the B doped Co₃O₄ NPs displays a maximum specific capacitance of 998.12 F/g, which is ∼1.50-fold increased as compared to 668.79 F/g of the pristine Co₃O₄ NPs at current density 1.5mA/cm² and scan rate 2mV/s in 1 M KOH electrolyte solution. Moreover, 3 M B@Co₃O₄ NPs demonstrates excellent power density 711.14W/kg and high <span><span>energy density</span><svg><path></path></svg></span> 195.96Wh/kg Wh/kg. Hence, we believe that boron doped cobalt oxide nanoparticles are a promising electroactive material for the supercapacitive applications.</div></div>","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"510 ","pages":"Article 145318"},"PeriodicalIF":5.5,"publicationDate":"2024-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142596712","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhancing photovoltaic performance of dye-sensitized solar cells through TiO2/g-C3N4 nanocomposite photoanodes for improved charge carrier management","authors":"S. Amini ,&nbsp;M.R. Mohammadi ,&nbsp;Yuning Li","doi":"10.1016/j.electacta.2024.145331","DOIUrl":"10.1016/j.electacta.2024.145331","url":null,"abstract":"<div><div>This study explores the enhancement of dye-sensitized solar cells (DSSCs) through the modification of porous TiO₂ photoanodes by incorporating two-dimensional graphitic carbon nitride (g-C₃N₄) synthesized from urea. The combination of wide-bandgap TiO₂ with narrow-bandgap g-C₃N₄ extends the optical response range of the TiO₂ heterostructure composites from ultraviolet to visible light. The introduction of g-C₃N₄ with TiO₂ to form a heterojunction significantly boosts the photovoltaic performance of the device by minimizing charge recombination at the photoanode-electrolyte interface. Upon optimizing the g-C₃N₄ loading, a peak power conversion efficiency (PCE) of 10.79 % is achieved, representing an impressive 42 % improvement over the pristine TiO₂-based device. This enhancement is primarily attributed to the efficient separation of photogenerated charge carriers, facilitated by the type II band alignment between g-C₃N₄ and TiO₂. This alignment, enabled by favorable conduction and valence band offsets, accelerates the separation of photogenerated carriers and prolongs electron lifetime.</div></div>","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"509 ","pages":"Article 145331"},"PeriodicalIF":5.5,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142594477","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhanced heat and corrosion resistance of organic silicone coatings by dual shielding effects of Zn powder","authors":"Chuangchuang Zhang,&nbsp;Songmei Li,&nbsp;Jian Xiao,&nbsp;Rong Wang,&nbsp;Xiaoyun Xu,&nbsp;Jianhua Liu,&nbsp;Mei Yu","doi":"10.1016/j.electacta.2024.145329","DOIUrl":"10.1016/j.electacta.2024.145329","url":null,"abstract":"<div><div>Organic silicone coatings added with varying Zn content were developed to enhance heat and corrosion resistance in different corrosive environments. Zn was revealed to affect the adhesion strength between the coating and the substrate, and the 40% Zn-added coating demonstrated the best heat and corrosion resistance. In high-temperature environments, the volume expansion and melting deformation of Zn filled the defects of the coating and enhanced the physical shielding effect of the coating. In ambient-temperature environments, Zn provided the chemical shielding effect to the steel substrate by acting as an anode and providing cathodic protection. In high temperature-salt spray cyclic environments, the ambient-temperature corrosion products of Zn also filled the defects of the coating and enhanced the heat resistance in the high-temperature stage. ZnO generated at high temperatures preferentially adsorbed corrosive mediums in the ambient-temperature stage, hindering their diffusion to the substrate, thereby simultaneously enhancing the heat and corrosion resistance of the coating.</div></div>","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"509 ","pages":"Article 145329"},"PeriodicalIF":5.5,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142594406","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of plant extract additives on the parasitic reaction in alkaline Zn-air batteries","authors":"M.A. Deyab ,&nbsp;Q. Mohsen","doi":"10.1016/j.electacta.2024.145313","DOIUrl":"10.1016/j.electacta.2024.145313","url":null,"abstract":"<div><div>The battery's high energy density, economical price, and ecological sustainability of the Zn-air battery make it a bright future battery technology. However, parasitic reactions, which can diminish the battery's life cycle and efficacy, are the key challenges for potential development of Zn-air batteries. Glycyrrhiza glabra roots extract (GGRE) has been investigated as an alternative hydrogen gas evolution and corrosion inhibitor for Zn-air batteries in order to mitigate the parasitic reaction. The results obtained reveal that the inhibition capacity of the GGRE extract increases with concentration and reaches its highest level (75.6 %) around 350 mg l^-1 of GGRE extract. GGRE extract is a mixed type inhibitor with a predominately cathodic effect based on the polarization data. The GGRE extract adsorption on the Zn surface complies with Freundlich isotherm. In comparison to the blank Zn-KOH (354 mAh g^-1), the battery containing 350 mg l^-1 GGRE extract has the highest discharge capacity (533 mAh g^-1) and the best cyclability (92.9 % retention after 500 cycles). Overall, GGRE extract can significantly optimize the performance of Zn-air batteries.</div></div>","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"509 ","pages":"Article 145313"},"PeriodicalIF":5.5,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142588406","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Electrochemical properties of Zn and Al-doped SnSb for asymmetric supercapacitor application","authors":"Abhishek A,&nbsp;Naveenkumar N,&nbsp;Ramesh V","doi":"10.1016/j.electacta.2024.145314","DOIUrl":"10.1016/j.electacta.2024.145314","url":null,"abstract":"<div><div>Supercapacitors or electrochemical capacitors are known for their supporting pulse power because of their high-power density compared to the battery. In this work, Al and Zn doped SnSb, i.e., Sn_0.95SbZn_0.05, Sn_0.9SbZn_0.1, Sn_0.95SbAl_0.05, and Sn_0.9SbAl_0.1 have been synthesized through chemical co-precipitation method. The powder X-ray diffraction, Raman spectroscopy, and UV–visible spectroscopy are intensely scrutinised to infer the phase formation, vibrational, and optical properties of the synthesized materials. Furthermore, the SEM, TEM, and X-ray photoelectron spectroscopy are used to study the material's morphology, chemical, and oxidation state; the Zn-doped SnSb alone focused because of their better electrochemical performance than the Al-doped SnSb. Using a three-electrode setup, the electrochemical performance of the following Sn_0.95SbZn_0.05, Sn_0.9SbZn_0.1, Sn_0.95SbAl_0.05, and Sn_0.9SbAl_0.1 are evaluated in that Sn_0.95SbZn_0.05 has recorded higher specific capacitance of 588 F/g at 1A/g than the other. Then, the electrochemical analysis is further proceeded with the fabrication of an asymmetric device based on Swagelok assembly in which activated carbon acts as the negative electrode and Sn_0.95SbZn_0.05 as the positive electrode and has recorded the maximum power and energy density value of 4266 W/Kg and energy density of 8.57 Wh/Kg. It also has shown outstanding cyclic stability for 5000 charge-discharge cycles at 10 A/g.</div></div>","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"509 ","pages":"Article 145314"},"PeriodicalIF":5.5,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142580233","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Fluorine-regulated Cu catalyst boosts electrochemical reduction of CO2 towards ethylene production","authors":"Dezhong Hu ,&nbsp;Jingbo Wen ,&nbsp;Zhibin Pei ,&nbsp;Dong Xiang ,&nbsp;Xiongwu Kang","doi":"10.1016/j.electacta.2024.145317","DOIUrl":"10.1016/j.electacta.2024.145317","url":null,"abstract":"<div><div>Electrochemical reduction of carbon dioxide (CO₂RR) into value-added multi-carbon (C₂) products utilizing renewable energy is a promising way to reduce carbon emission and achieve carbon neutrality. However, rational design of catalysts towards high C₂ products selectivity remains a formidable task. Herein, fluorine modified copper catalyst was synthesised by thermal anneal in the presence of ammonium fluoride and sequential annealing in argon atmosphere. The charge distribution and coordination environment on copper surface were adjusted by doped fluorine atoms, which enables the formation of key intermediates and their sequential evolution into ethylene. The catalyst achieves a remarkable Faradaic efficiency (FE) of 40.6 % for eCO₂RR to ethylene and remains stable over 13 h. Density functional theory calculations indicates that the excellent CO₂RR performance can be attributed to the suppressed hydrogen evolution on fluorine-doped copper catalyst. Our work brings a potential modification strategy of Cu-based catalyst for electrolytic CO₂-to-C₂ pathway.</div></div>","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"509 ","pages":"Article 145317"},"PeriodicalIF":5.5,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142580080","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}