Journal of The Electrochemical Society最新文献_第9页

Exploring Two-Dimensional MOF-Derived Co/Ni Species for Efficient Electrocatalytic Hydrogen Evolution Reaction 探索二维mof衍生Co/Ni材料用于高效电催化析氢反应

4区工程技术

Journal of The Electrochemical Society Pub Date : 2024-10-24 DOI: 10.1149/1945-7111/ad8aef

Yu Jia, Tian Zhang, Xiaohui Ren, W.Y. Chu, Qianying Guo, Haoran Zou, Zhaoyang Liu, Wenjie Wu, Lingyu Zhang, Mengna Yuan, Yang Li, Hongwei Ni

{"title":"Exploring Two-Dimensional MOF-Derived Co/Ni Species for Efficient Electrocatalytic Hydrogen Evolution Reaction","authors":"Yu Jia, Tian Zhang, Xiaohui Ren, W.Y. Chu, Qianying Guo, Haoran Zou, Zhaoyang Liu, Wenjie Wu, Lingyu Zhang, Mengna Yuan, Yang Li, Hongwei Ni","doi":"10.1149/1945-7111/ad8aef","DOIUrl":"https://doi.org/10.1149/1945-7111/ad8aef","url":null,"abstract":"Hydrogen evolution reaction (HER) has received a lot of attention due to its promising advantages in producing “green hydrogen” via electrocatalysis with low cost and high efficiency. Until now, developing transition metal-based electrocatalysts for HER has been a great challenge. In this regard, we reported a facile strategy to fabricate Co/Ni species encapsulated by carbon structure (CoNi@C) through annealing two-dimensional (2D) metal-organic framework (MOF) nanosheets. The CoNi@C that was prepared under 600 °C achieved the highest catalytic performance in 1.0 M KOH electrolyte with an overpotential of 330 mV to acquire 100 mA cm −2 . In addition, the effect of KOH concentrations on the HER performance of CoNi@C-600 was explored. In 3.0 M KOH electrolyte, the current density of 100 mA cm −2 has been attained at a bias potential of 80 mV. The alkaline environment can improve the electrocatalytic performance and further enhance the stability of the as-prepared catalysts. This work would endow promising opportunities for manipulating MOF-based structures through pyrolysis to fabricate highly efficient electrocatalysts.","PeriodicalId":17364,"journal":{"name":"Journal of The Electrochemical Society","volume":"171 11","pages":"113503-113503"},"PeriodicalIF":0.0,"publicationDate":"2024-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147913265","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Electrochemical Drawdown of U³⁺ and Ce³⁺ in Molten LiCl-KCl Using a Liquid Cadmium Cathode 液态镉阴极对熔融LiCl-KCl中U3+和Ce3+的电化学降阻研究

4区工程技术

Journal of The Electrochemical Society Pub Date : 2024-10-23 DOI: 10.1149/1945-7111/ad8a92

Biao Wu, Xiaoyuan Zhou, Xuemin Ding, Ahmet Burak Çubuk, Yafei Wang, Shaoqiang Guo, Peng Lin

{"title":"Electrochemical Drawdown of U3+ and Ce3+ in Molten LiCl-KCl Using a Liquid Cadmium Cathode","authors":"Biao Wu, Xiaoyuan Zhou, Xuemin Ding, Ahmet Burak Çubuk, Yafei Wang, Shaoqiang Guo, Peng Lin","doi":"10.1149/1945-7111/ad8a92","DOIUrl":"https://doi.org/10.1149/1945-7111/ad8a92","url":null,"abstract":"The electrorefining of spent nuclear fuels is a key step to recover uranium and transuranium on separated cathodes. However, the electrolyte salts become contaminated with fission products after batches of electrorefining, and therefore the two unit processes for the drawdown of actinide and lanthanide are suggested before treatment of the contaminated salts. We investigated the electrochemical drawdown of U 3+ , Ce 3+ , and U 3+ from Ce 3+ in molten LiCl-KCl electrolyte using a liquid cadmium cathode (LCC) at 773 K. The drawdown mechanism of U 3+ and Ce 3+ was determined by cyclic voltammograms and calculating the equilibrium potential. After galvanostatic electrolysis, high recovery yields were obtained for the drawdown of U 3+ and Ce 3+ , but the current efficiency of Ce 3+ was at least twice as high as that of U 3+ due to the cyclic electrolysis of U 3+ /U 4+ . Despite significant underpotential deposition of Ce 3+ in the LCC, an exceptional separation factor for Ce relative to U reached 84.67 ± 17.13, which was attributed to the formed pure uranium products hindering the subsequent deposition of Ce 3+ . Moreover, pure uranium products and Ce-Cd intermetallic compounds were characterized by X-ray diffraction (XRD) and scanning electron microscope coupled with energy dispersive X-ray spectroscopy (SEM-EDS).","PeriodicalId":17364,"journal":{"name":"Journal of The Electrochemical Society","volume":"171 11","pages":"112504-112504"},"PeriodicalIF":0.0,"publicationDate":"2024-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147899899","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 7

A Magnetic Molecularly Imprinted Electrochemical Sensor with Selective and Sensitive Detection Ability towards Methotrexate in Serum Samples 磁性分子印迹电化学传感器对血清样品中甲氨蝶呤的选择性和灵敏度检测

4区工程技术

Journal of The Electrochemical Society Pub Date : 2024-10-01 DOI: 10.1149/1945-7111/ad830f

Shukai Sun, Shun Li, Zhixiang Sun, Yue Zhai, Chao Xuan, Yusun Zhou, Xiaomin Yang, Qingwu Tian, Tingting Zhou

引用次数: 1

A Very Simple and Feasible Colorimetric-Electrochemical Bimodal Method for H₂O₂ Detection in Human Serum 一种简单可行的比色-电化学双峰法测定人血清中H2O2

4区工程技术

Journal of The Electrochemical Society Pub Date : 2024-10-01 DOI: 10.1149/1945-7111/ad8311

Chenyang Han, Kun-Zhi Wang, Xin Chen, Zhencheng Chen, Guo‐Cheng Han, Xiao‐Zhen Feng, Heinz‐Bernhard Kraatz

{"title":"A Very Simple and Feasible Colorimetric-Electrochemical Bimodal Method for H2O2 Detection in Human Serum","authors":"Chenyang Han, Kun-Zhi Wang, Xin Chen, Zhencheng Chen, Guo‐Cheng Han, Xiao‐Zhen Feng, Heinz‐Bernhard Kraatz","doi":"10.1149/1945-7111/ad8311","DOIUrl":"https://doi.org/10.1149/1945-7111/ad8311","url":null,"abstract":"Hydrogen peroxide (H 2 O 2 ) possesses disinfectant, antiseptic, deodorizing, and cleansing properties. It is commonly used to clean wounds, ulcers, abscessed sinuses, and pus in the ear. Herein, a colorimetric-electrochemical bimodal method for the detection of hydrogen peroxide in serum was constructed, when using a platinum sheet electrode electrocatalyzes H 2 O 2 producing hydroxyl radical, resulting in oxidising TMB and giving a color and current change. After optimaztion, cyclic voltammetry, differential pulse voltammetry and ultraviolet spectrophotometry constituting a colorimetric-electrochemical bimodal method were used to establish four linear relationships within the concentration range of 10.00–1000.00 μM. The limit of detection was found to be 3.33 μM. Additionally, the method’s recoveries ranged from 98.88% to 101.10% with a relative standard deviation of no more than 3.70% when using the standard addition method in serum, which indicates its potential for practical medical testing.","PeriodicalId":17364,"journal":{"name":"Journal of The Electrochemical Society","volume":"171 10","pages":"107506-107506"},"PeriodicalIF":0.0,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147891962","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Comprehensive Analysis of Commercial Sodium-Ion Batteries: Structural and Electrochemical Insights 商用钠离子电池的综合分析：结构和电化学见解

IF 3.9 4区工程技术

Journal of The Electrochemical Society Pub Date : 2024-09-18 DOI: 10.1149/1945-7111/ad7765

Filip Adam Dorau, Alessandro Sommer, Jan Koloch, Richard Röß-Ohlenroth, Markus Schreiber, Maximilian Neuner, Kareem Abo Gamra, Yilei Lin, Jan Schöberl, Philip Bilfinger, Sophie Grabmann, Benedikt Stumper, Leon Katzenmeier, Markus Lienkamp and Rüdiger Daub

{"title":"Comprehensive Analysis of Commercial Sodium-Ion Batteries: Structural and Electrochemical Insights","authors":"Filip Adam Dorau, Alessandro Sommer, Jan Koloch, Richard Röß-Ohlenroth, Markus Schreiber, Maximilian Neuner, Kareem Abo Gamra, Yilei Lin, Jan Schöberl, Philip Bilfinger, Sophie Grabmann, Benedikt Stumper, Leon Katzenmeier, Markus Lienkamp and Rüdiger Daub","doi":"10.1149/1945-7111/ad7765","DOIUrl":"https://doi.org/10.1149/1945-7111/ad7765","url":null,"abstract":"Considering the growing need for extensive energy storage solutions in smart grid technologies and affordable options for entry-level electric vehicles, sodium-ion batteries offer a promising alternative. They use raw materials that are cheaper, less toxic, and more abundant than those used in lithium-ion batteries, making them especially suitable for large-scale applications. This study comprehensively investigated four commercially available sodium-ion batteries to examine their structural and electrochemical characteristics. The cells were dissected, and the electrode dimensions, the areal mass loadings, and the material compositions were analyzed using scanning electron microscopy, energy-dispersive X-ray spectroscopy, powder X-ray diffraction, and attenuated total reflection Fourier-transform infrared spectroscopy. Electrical characterization, including electrochemical impedance spectroscopy, C-rate testing up to 6 C under different ambient temperatures, along with cyclic aging studies, provided insights into the cells’ performance and degradation mechanisms. The findings highlighted variations in electrode coatings, particle sizes, and cathode materials among the cells, which were then correlated with their electrical behavior. This emphasized the challenges in maintaining sodium-ion battery performance, especially at low temperatures. This study was designed to establish a comprehensive knowledge base for both academic and industrial research in sodium-ion battery technology.","PeriodicalId":17364,"journal":{"name":"Journal of The Electrochemical Society","volume":"30 1","pages":""},"PeriodicalIF":3.9,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142263381","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Indole-3-Carbinol Upconversion with Copper Oxide Nanoparticles Supported Graphitic Carbon Nitride: A Sustainable Approach 以氮化石墨碳为支撑的氧化铜纳米颗粒实现吲哚-3-卡比醇的上转换：一种可持续的方法

IF 3.9 4区工程技术

Journal of The Electrochemical Society Pub Date : 2024-09-17 DOI: 10.1149/1945-7111/ad7766

Roopa Margaret Rodrigues and Anitha Varghese

{"title":"Indole-3-Carbinol Upconversion with Copper Oxide Nanoparticles Supported Graphitic Carbon Nitride: A Sustainable Approach","authors":"Roopa Margaret Rodrigues and Anitha Varghese","doi":"10.1149/1945-7111/ad7766","DOIUrl":"https://doi.org/10.1149/1945-7111/ad7766","url":null,"abstract":"Electro-organic chemistry offers a sustainable and efficient approach to organic synthesis by utilizing electrochemical processes. This field has gained significant attention due to its potential for minimizing waste, reducing energy consumption, and enabling selective transformations. Herein, we report the development of a graphitic carbon nitride-coated carbon fiber electrode modified with electropolymerized amino-2-thiazole and electrodeposited Cu2O nanoparticles from copper nitrate trihydrate for the oxidation of Indole-3-carbinol (IC). Scanning electron microscopy, X-ray diffraction analysis, and X-ray photoelectron spectroscopy studies were carried out to characterize the developed electrode. Cyclic voltammetry, electrochemical impedance spectroscopy, and bulk electrolysis techniques were employed for the electrochemical studies. The enhanced electrochemical activity of the Cu2O-pAT-GCN-TCFP electrode compared to the individual GCN and polymer electrode was studied using electrochemical characterization, which revealed a 3-fold increase in the current response for Cu2O-pAT-GCN-TCFP (0.0011 A) compared to the bare electrode. The reaction was carried out using an aqueous carbonate buffer solution as an electrolyte via bulk electrolysis at a set potential of 0.82 V. The product obtained was isolated by column chromatography to obtain a yield of 74% and characterized by proton nuclear magnetic resonance (1H NMR) spectroscopy. Additionally, the Cu2O-pAT-GCN-TCFP electrode was studied for its stability, reproducibility, and selectivity.","PeriodicalId":17364,"journal":{"name":"Journal of The Electrochemical Society","volume":"34 1","pages":""},"PeriodicalIF":3.9,"publicationDate":"2024-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142263386","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

3-Methyl-2-oxazolidinone (JEFFSOL® MEOX) as a Substitute Solvent for NMP in Battery Manufacturing 电池生产中 3-甲基-2-噁唑烷酮（JEFFSOL® MEOX）作为 NMP 的替代溶剂

IF 3.9 4区工程技术

Journal of The Electrochemical Society Pub Date : 2024-09-17 DOI: 10.1149/1945-7111/ad77b1

Jean E. Marshall, Victoria White, Ke Zhang, Philip Bellchambers, Jerzy Gazda, Mark Copley, Louis F. J. Piper and Matthew J. Capener

{"title":"3-Methyl-2-oxazolidinone (JEFFSOL® MEOX) as a Substitute Solvent for NMP in Battery Manufacturing","authors":"Jean E. Marshall, Victoria White, Ke Zhang, Philip Bellchambers, Jerzy Gazda, Mark Copley, Louis F. J. Piper and Matthew J. Capener","doi":"10.1149/1945-7111/ad77b1","DOIUrl":"https://doi.org/10.1149/1945-7111/ad77b1","url":null,"abstract":"This work presents 3-Methyl-2-oxazolidinone (JEFFSOL® MEOX) as a substitute solvent for N-methyl-2-pyrrolidone (NMP) in the manufacture of Li-ion batteries. NMP is a good solvent for polyvinylidene difluoride (PVDF, a common binder material), and also has a high boiling point (202 °C), allowing for gradual drying of electrode slurries to form homogeneous coatings. However, NMP has a reprotoxic effect and its use is attracting increasing legislative pressure; it would be advantageous to the battery-making industry to find a more benign alternative. Of the few other solvents that will readily dissolve PVDF, examples such as dimethylformamide are also significantly toxic, so further investigation is necessary to find a credible alternative solvent system. We show that JEFFSOL® MEOX (boiling point 225 °C) is capable of dissolving PVDF at accessible temperatures (40 °C–50 °C), and that at a similar ratio of active material:binder:solvent, both JEFFSOL® MEOX and NMP produce electrode slurries with a viscosity of 5–6 Pa.s at 25 °C and at a shear rate of 10 s−1. Cells formed using JEFFSOL® MEOX-made and NMP-made cathode coatings showed comparable electrochemical performance.","PeriodicalId":17364,"journal":{"name":"Journal of The Electrochemical Society","volume":"18 1","pages":""},"PeriodicalIF":3.9,"publicationDate":"2024-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142263644","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Rapid Detection of Ultralow H2S Concentration with on-chip Fabrication of SnO2-based Gas Sensors by Direct Electrodeposition from Non-Aqueous Solvents 通过从非水性溶剂中直接电沉积在芯片上制造 SnO2 气体传感器，实现超低 H2S 浓度的快速检测

IF 3.9 4区工程技术

Journal of The Electrochemical Society Pub Date : 2024-09-17 DOI: 10.1149/1945-7111/ad790f

Kiem Do Van, Nguyen Van Hieu, Thomas C-K Yang and Tu Le Manh

{"title":"Rapid Detection of Ultralow H2S Concentration with on-chip Fabrication of SnO2-based Gas Sensors by Direct Electrodeposition from Non-Aqueous Solvents","authors":"Kiem Do Van, Nguyen Van Hieu, Thomas C-K Yang and Tu Le Manh","doi":"10.1149/1945-7111/ad790f","DOIUrl":"https://doi.org/10.1149/1945-7111/ad790f","url":null,"abstract":"Hydrogen sulfide (H2S) causes significant impacts on human health and the environment due to its highly toxic properties. Thus, the design and development of gas sensors to detect and monitor H2S (especially at extremely low concentrations) are challenging tasks for scientists. In this work, SnO2 gas sensors were successfully synthesized directly on a chip by Sn electrodeposition from ethylene glycol solutions + a post-treatment (calcination) stage (to form and stabilize SnO2). Mechanisms and kinetics of Sn electrodeposition on Pt microelectrodes were thoroughly studied using electrochemical techniques. These fabricated gas sensors exhibit a high selectivity toward H2S gas and an effective response to low-level concentrations of H2S in the range of 0.1 ppm–1 ppm at different working temperatures. The influence of electrodeposition conditions and calcination temperatures on the gas response of sensors were also examined. The results have verified that the electrodeposition method from ethylene glycol solutions is promising for the fabrication of ultrasensitive on-chip gas sensors.","PeriodicalId":17364,"journal":{"name":"Journal of The Electrochemical Society","volume":"172 1","pages":""},"PeriodicalIF":3.9,"publicationDate":"2024-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142263590","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Optimization of Post-Annealing Temperature of RF Magnetron-Sputtered ZnO Thin Films for Enhancing Performances of UV Photodetectors 优化射频磁控溅射氧化锌薄膜的退火后温度以提高紫外线光电探测器的性能

IF 3.9 4区工程技术

Journal of The Electrochemical Society Pub Date : 2024-09-17 DOI: 10.1149/1945-7111/ad7983

Xueyuan Wei, Yao Liu and Lesi Wei

引用次数: 0

Electrochemical Behaviour of Nickel(II)-Rhenium(VII) And Electrodeposition of Nickel-Rhenium Alloy from Choline Chloride - Urea Deep Eutectic Solvent 镍（II）-铼（VII）的电化学行为以及从氯化胆碱-尿素深共晶溶剂中电沉积镍铼合金

IF 3.9 4区工程技术

Journal of The Electrochemical Society Pub Date : 2024-09-17 DOI: 10.1149/1945-7111/ad77f6

Mani Jayakumar, M. Karthikeyan, G. Murali Krishna and Chrysanthus Andrew

{"title":"Electrochemical Behaviour of Nickel(II)-Rhenium(VII) And Electrodeposition of Nickel-Rhenium Alloy from Choline Chloride - Urea Deep Eutectic Solvent","authors":"Mani Jayakumar, M. Karthikeyan, G. Murali Krishna and Chrysanthus Andrew","doi":"10.1149/1945-7111/ad77f6","DOIUrl":"https://doi.org/10.1149/1945-7111/ad77f6","url":null,"abstract":"The electrochemical behaviour of nickel(II)-rhenium(VII) and the electrodeposition of nickel-rhenium alloy using choline chloride: 2 Urea deep eutectic solvent (Reline DES) is reported. Speciation of nickel(II)-rhenium(VII) in Reline DES was studied using UV -Visible spectroscopy. Cyclic voltammetry of Ni2+-ReO4− in Reline indicates the simultaneous reduction of two metal ions at glassy carbon electrode controlled by non-reversible diffusion process. Chronoamperograms obtained for the reduction of Ni2+-ReO4− suggests nucleation and three-dimensional growth of bimetallic phase on electrode surface followed progressive nucleation. Electrodeposition of nickel—rhenium alloy was carried out on copper substrates under galvanostatic and potentiostatic conditions. Smooth and uniform deposits were obtained by galvanostatic deposition. X-ray diffraction analysis of the deposit confirmed it to be nickel-rhenium alloy (at −1.2 V) in amorphous form which upon annealing at 1000 °C crystallizes into hexagonal phase with concurrent morphology change from spherical particles to irregular polygons.","PeriodicalId":17364,"journal":{"name":"Journal of The Electrochemical Society","volume":"5 1","pages":""},"PeriodicalIF":3.9,"publicationDate":"2024-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142263382","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0