Journal of Electroanalytical Chemistry最新文献

{"title":"Substrate and potential-driven surface morphology of bifunctional Ni-Fe electrode for efficient alkaline water electrolysis","authors":"Lokanath Mohapatra ,&nbsp;Ajay Rathour ,&nbsp;Akshay Kumar Sonwane ,&nbsp;Aniket Samanta ,&nbsp;Goutam Dalapati ,&nbsp;Ajay Kumar Kushwaha","doi":"10.1016/j.jelechem.2024.118702","DOIUrl":"10.1016/j.jelechem.2024.118702","url":null,"abstract":"<div><div>Nickel-iron (Ni-Fe) alloy electrodes are synthesized using chronoamperometry. The influence of substrate type (copper, stainless steel, and nickel) and deposition potential on the structural, morphological, and electrocatalytic characteristics are systematically investigated. X-ray diffraction (XRD) analysis revealed the formation of a face-centered cubic (FCC) Ni-Fe alloy. Electrodeposition at higher potential (−1.45 V) forms well-defined nanoflakes, whereas electrodeposition at lower potential (−1.00 V) results aggregated Ni-Fe particles. The Ni-Fe alloy electrodes having well-defined nanoflakes demonstrated superior electrocatalytic performance, exhibiting a overpotential of −168 mV vs. RHE for the hydrogen evolution reaction (HER) and 236 mV vs. RHE for the oxygen evolution reaction (OER), at current density of 10 mA/cm². The enhanced electrocatalytic activity of the nanoflakes based Ni-Fe alloy is attributed due to their larger catalytic surface area, porous morphology and higher Fe concentration. The Ni-Fe alloy electrodes displayed bifunctional electrocatalytic behavior, making them highly suitable for both HER and OER processes.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"974 ","pages":"Article 118702"},"PeriodicalIF":4.1,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142432794","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}

{"title":"Evaluating copper plating process for filling micro vias with thin surface Cu by the 1-(4-carboxyphenyl)-5-mercapto-1H-tetrazole additive","authors":"Zewei. Lin ,&nbsp;Xuefei Tao ,&nbsp;Lingjie Tengxu ,&nbsp;Zhihua Tao","doi":"10.1016/j.jelechem.2024.118696","DOIUrl":"10.1016/j.jelechem.2024.118696","url":null,"abstract":"<div><div>The 1-(4-carboxyphenyl)-5-mercapto-1 h-tetrazole (CMHT) as a novel leveler for the overfilling of micro-blind vias was investigated in acidic copper electroplating. The synergistic effect between CMHT and other additives were confirmed through chronoamperometry, cyclic voltammetry and electrochemical impedance spectroscopy. The results showed a convection-dependent interaction between the CMHT and suppressor (propyleneoxide (PO)-ethylene oxide (EO)-propylene oxide (PO), named PEP). Metallographic section testing demonstrated that the CMHT not only have excellent microvia filling performances, but also only have 19.1 μm thin surface Cu for micro blind vias with a diameter of 150 µm and a depth of 80 µm by the electrodepositing 60 min of 2 A/dm². The quantum chemical calculations experiments revealed also that the CMHT parallel orientation of the benzene ring and tetrazole heterocycle can enhance the effective adsorption area. The obtained results from electrochemical test and quantum chemical calculations were in reasonably good agreement.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"975 ","pages":"Article 118696"},"PeriodicalIF":4.1,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142529179","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}

{"title":"Na2SO4-assisted shift in the nucleation mechanism of copper-electrocrystallization from an acidic bath","authors":"Sourav Pattanayak ,&nbsp;Sabyasachi Panda ,&nbsp;Rajath R. Mendon ,&nbsp;Sanjeev Das ,&nbsp;Archana Mallik","doi":"10.1016/j.jelechem.2024.118706","DOIUrl":"10.1016/j.jelechem.2024.118706","url":null,"abstract":"<div><div>In this study, the effect of sodium sulphate (Na₂SO₄) on the nucleation mechanism of copper films during electrodeposition was investigated. Voltammetric and chronoamperometric studies were employed to analyze the kinetics of electrochemical nucleation. Phase analysis of the nucleated copper was performed via X-ray diffraction, while morphological and topographical studies were conducted using scanning electron microscopy (SEM) and atomic force microscopy (AFM) to further validate the electrochemical findings. The deposits obtained in the presence of Na₂SO₄ were finer and more closely packed compared to those formed without Na₂SO₄. Additionally, the roughness of the deposits varied between the two conditions, with films formed in the presence of Na₂SO₄ being slightly smoother. The results indicate that the addition of Na₂SO₄ changed the nucleation mechanism from charge transfer controlled to mass transfer controlled.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"974 ","pages":"Article 118706"},"PeriodicalIF":4.1,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142432790","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}

{"title":"Boosting the synergistic activation of δ-MnO2 as cathode for aqueous zinc-ion batteries through Ni, Co co-doping","authors":"Jing Zeng ,&nbsp;Zhihao Zhang ,&nbsp;Yong Chen ,&nbsp;Guangyong Peng ,&nbsp;Min Zhao ,&nbsp;Yuhan Zhou ,&nbsp;Ke Bai ,&nbsp;Hanbing He","doi":"10.1016/j.jelechem.2024.118682","DOIUrl":"10.1016/j.jelechem.2024.118682","url":null,"abstract":"<div><div>Layered δ-MnO₂ is regarded as a promising cathode material for high-performance aqueous zinc-ion batteries (AZIBs) due to the sufficient interlayer spacing for the accommodation and migration of charge carriers. However, the sluggish activation process limits the reversible capacity, thus prevent their application. In this study, Ni-Co co-doped layered δ-MnO₂ was designed to enhance ion diffusion capability and cycling stability. The influencing mechanism of Ni and Co on the long activation process are proposed by a comparative analysis between single doping and co-doping approaches. Specifically, the optimized co-doped δ-MnO₂ maintained a high specific capacity of 200.2 mAh·g⁻¹ with a capacity retention of 97.40 % after 700 cycles at 1 A·g⁻¹. The co-doping approach exhibited a synergistic effect in suppressing Mn dissolution and enhancing ion diffusion capability. These findings provide new directions on boosting the synergistic activation process of manganese oxide and shed lights on the rational design of low-cost and high-safe batteries.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"973 ","pages":"Article 118682"},"PeriodicalIF":4.1,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142422855","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}

{"title":"Generation-fusion strategy in metal-earth ionosome investigation using single-entity electrochemistry at the micro-water/trifluorotoluene interface","authors":"Cheng Liu ,&nbsp;Shiyu Gan ,&nbsp;Lishi Wang","doi":"10.1016/j.jelechem.2024.118707","DOIUrl":"10.1016/j.jelechem.2024.118707","url":null,"abstract":"<div><div>Ionosomes are water clusters/droplets formed in an organic phase via the spontaneous assembly of ionic bilayers by hydrated cations or anions. The ionosomes formed by monovalent ions, i.e., Li⁺, Na⁺, K⁺, Cl⁻, etc., have been thoroughly investigated. Herein, single nanowater clusters (viz. ionosomes) in organic solutions, which are formed by the transfer of metal earth cations (i.e., Mg²⁺, Ca²⁺, Ba²⁺) into organic lipophilic electrolytes, were discovered using single-entity electrochemistry (SEE). The generation-fusion strategy involving two-step potentiostatic chronoamperometry was applied to investigate single Mg²⁺-ionosomes at the water/α,α,α-trifluorotoluene (w/TFT) interface. After an exciting potential forced the hydrophilic ion into the organic phase, a train of current spikes with information on the integrated charges, frequency, and duration were recorded to gain insight into the ionosomes. Variates were thoroughly investigated, including the exciting potential, exciting time, recording potential, size of the applied w/TFT interface, ion species, and concentration. These results suggest that: (1) the size of a single Mg²⁺-ionosome was revealed; (2) the fleshly formed ionosomes are mainly located on the organic side of the w/TFT interfacial surface instead of diffusing into the organic bulk; (3) when the interface decreases, fewer ionosomes form, and the size of the ionosomes decreases; (4) the mean charge carried by a single ionosome is positively related to the charge density of a single cation; (5) by alternating the recording potential, the negative zeta potential of Mg²⁺-ionosomes was revealed; (6) Mg²⁺-ionosomes can form when the aqueous solution contains only 2 μmol·L⁻¹ Mg²⁺. This work thoroughly investigated hydrated metal earth ion clusters in the organic phase via SEE and provides insights into the interface electric double layer from the electrochemistry perspective. In addition to promoting the understanding of ionosomes, this strategy can provide potential applications to identify high-purity water.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"974 ","pages":"Article 118707"},"PeriodicalIF":4.1,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142432788","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}

{"title":"Multiwalled carbon nanotubes decorated ɛ-MnO2 nanoflowers cathode with oxygen defect for aqueous zinc-ion batteries","authors":"Hong Liu,&nbsp;Chen Wang,&nbsp;Fanjun Kong,&nbsp;Chen Lu,&nbsp;Shi Tao,&nbsp;Bin Qian","doi":"10.1016/j.jelechem.2024.118701","DOIUrl":"10.1016/j.jelechem.2024.118701","url":null,"abstract":"<div><div>As a potential cathode for aqueous zinc-ion batteries, the low electrical conductivity and poor electrochemical kinetics of MnO₂ limit its further development and application. Herein, multiwalled carbon nanotubes decorated MnO₂ nanoflowers with hexagonal structure (ɛ-MnO₂/MWCNTs) were synthesized by one-step co-precipitation method. The ɛ-MnO₂/MWCNTs inherit the advantages of highly conductive MWCNTs and nanostructured MnO₂, thus showing excellent zinc-ion storage capacity. The ɛ-MnO₂/MWCNTs display high invertible capacity of 335.6 mAh/g at 0.2 A/g after 150 cycles, and long-term capacity of 115.7 mAh/g at 2.0 A/g after 4000 cycles. The results of kinetics tests further reveal that the MWCNTs decoration can reduce polarization of MnO₂ and accelerate its reaction kinetics. Thanks to these merits, the ɛ-MnO₂/MWCNTs hold great potential for high performance eco-friendly batteries cathode material.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"973 ","pages":"Article 118701"},"PeriodicalIF":4.1,"publicationDate":"2024-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142422861","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}

{"title":"Review of H2O2 generation from O2 electroreduction by gas diffusion electrodes: From homogeneous to heterogeneous electrocatalysis","authors":"Xuewei Zhang ,&nbsp;Xiaoxiao Meng ,&nbsp;Haiqian Zhao ,&nbsp;Wei Zhou ,&nbsp;Jihui Gao ,&nbsp;Guangbo Zhao","doi":"10.1016/j.jelechem.2024.118700","DOIUrl":"10.1016/j.jelechem.2024.118700","url":null,"abstract":"<div><div>In recent years, electrochemical research has focused on developing an efficient alternative technology for the <em>in-situ</em> generation of hydrogen peroxide (H₂O₂) via the two-electron oxygen reduction reaction (2eORR). This comprehensive review summarizes the most recent advancements in the electrochemical synthesis of H₂O₂, emphasizing the pivotal role of gas diffusion electrodes (GDEs). First, different structures and assembly processes of novel modified GDEs were introduced. The mechanism, fabrication, and representative works of the GDE, were then summarized. Furthermore, the variety of catalyst layers (CL) employed were analyzed, aiming to enhance both the activity and selectivity of the 2eORR process. Subsequently, the review delves into the operational parameters that govern the electrochemical generation of H₂O₂, including critical parameters such as current/potential, gas flow rate, electrolyte type, electrolyte pH, and temperature. These parameters affect the thermodynamics and kinetics of O₂ electroreduction, thereby modulating the yield of H₂O₂. Concludingly, the challenges and opportunities in H₂O₂ production through the 2eORR via GDEs were explored.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"974 ","pages":"Article 118700"},"PeriodicalIF":4.1,"publicationDate":"2024-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142441507","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}

{"title":"Construction of electrochemical sensor of Cu2O-CuO-W3O-W2C composite material for rapid and sensitive detection of vanillic acid","authors":"Na Li,&nbsp;Shixu Chen,&nbsp;Cong Zhang,&nbsp;Haiyan Zhao,&nbsp;Min Cui,&nbsp;Bao Sun","doi":"10.1016/j.jelechem.2024.118697","DOIUrl":"10.1016/j.jelechem.2024.118697","url":null,"abstract":"<div><div>Vanillic acid is a phenolic compound which has antioxidant properties and plays an essential role in the prevention of several degenerative diseases, including cancer and atherosclerosis. This work reports the development and application of a electrochemical sensor for vanillic acid detection by a composite material (Cu₂O-CuO-W₃O-W₂C) using polyoxometal-based metal–organic frameworks (POMOFs) as precursor through thermal decomposition. The synthesized Cu₂O-CuO-W₃O-W₂C have high electrical conductivity and excellent electrocatalytic performance. The electrochemical sensor displays a linear response between the current density and concentration of vanillic acid (50–1100 μM) with a lowest detection limit of 1.439 μM under optimal conditions. The sensor was also demonstrated for the determination of vanillic acid in different real samples (fruit juice and fruit peel) and satisfactory results were obtained.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"974 ","pages":"Article 118697"},"PeriodicalIF":4.1,"publicationDate":"2024-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142432786","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}

{"title":"Hydrothermally synthesized binder-less ZnS/CdS on nickel foam as promising hybrid supercapacitor electrode materials","authors":"Mohib Ullah Khan ,&nbsp;Afaq Ullah Khan ,&nbsp;Sameerah I. Al-Saeedi ,&nbsp;Kamran Tahir ,&nbsp;Abdulaziz A. Alanazi ,&nbsp;Zainab M. Almarhoon ,&nbsp;Talal M. Althagafi ,&nbsp;Magdi E.A. Zaki ,&nbsp;Hassan M.A. Hassan ,&nbsp;Mingzai Wu","doi":"10.1016/j.jelechem.2024.118690","DOIUrl":"10.1016/j.jelechem.2024.118690","url":null,"abstract":"<div><div>A binary composite of metal sulfides (MS) is directly synthesized on nickel foam through hydrothermal process, resulting in snow like nanosphere suitable for hybrid supercapacitors (HSCs). Herein, a ZnS/CdS binary composite has been grown directly on nickel foam using a simple hydrothermal method. The structural features, morphological characteristics and electrochemical performance of the composite are systematically investigated. Especially, the highest capacitance of 739–325 F/g at 1–10 A/g was attained with good rate performance. Moreover, a binder-less ZnS/CdS/NF composite achieved a high power of 5030 W/kg at 42 Wh/kg energy density by realizing an expanded voltage to 1.8 V with decent durability. Interestingly, a 92.84 % retention was noticed after 6500 cycles, which indicates high performance stability of the ZnS/CdS/NF||AC HSC. These outcomes reveal the promising prospect of all-metal sulfide utilization for next-generation energy storage devices.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"973 ","pages":"Article 118690"},"PeriodicalIF":4.1,"publicationDate":"2024-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142422857","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}

{"title":"Flower-like and porous Ni3S2 nanosheets for high performance supercapacitors","authors":"Wenkang Miao ,&nbsp;Yuan Li ,&nbsp;Hao Yin ,&nbsp;Lang Cao ,&nbsp;Jincheng Liu","doi":"10.1016/j.jelechem.2024.118695","DOIUrl":"10.1016/j.jelechem.2024.118695","url":null,"abstract":"<div><div>Transition metal sulfides have received significant attention as electrode materials for their low cost and high specific capacitance. Herein, flower-like and porous Ni₃S₂-120-10 assembled by nanosheets is directly grown on nickel foams through a facile one-step hydrothermal method. Benefited from the porous structure, the flower-like compound offers respectable gravimetric specific capacitance of 1899.4F g⁻¹ at a current density of 1 A/g in 6 M KOH aqueous electrolyte. Moreover, an asymmetric supercapacitor (ASC) was obtained using Ni₃S₂-120-10 as the positive electrode and active carbon as the negative electrode with 6 M KOH as the electrolyte. Ni₃S₂-120-10//AC displays a high power density of 1590.7 W kg⁻¹ at the energy density of 17.6 Wh kg⁻¹ accompanied with an outstanding cyclic stability (83.2 % of initial capacitance after 8000 cycles). This work provides a facile strategy for the next generation energy-storage applications with high stability and superior electrochemical capacity.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"974 ","pages":"Article 118695"},"PeriodicalIF":4.1,"publicationDate":"2024-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142432787","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}