Journal of Electroanalytical Chemistry最新文献

Hydrothermal synthesis of self-supported hierarchical microflowers of Co3O4 nanowires for potential supercapacitor application 水热法合成具有潜在超级电容器应用前景的 Co3O4 纳米线自支撑分层微流体

IF 4.1 3区化学

Journal of Electroanalytical Chemistry Pub Date : 2024-11-15 DOI: 10.1016/j.jelechem.2024.118800

Radhika S. Desai , Vinayak S. Jadhav , Pritam J. Morankar , Sushant B. Patil , Shivaji B. Sadale , Sidharth R. Pardeshi , Divya D. Lad , Pramod S. Patil , Chan-Wook Jeon , Dhanaji S. Dalavi

{"title":"Hydrothermal synthesis of self-supported hierarchical microflowers of Co3O4 nanowires for potential supercapacitor application","authors":"Radhika S. Desai , Vinayak S. Jadhav , Pritam J. Morankar , Sushant B. Patil , Shivaji B. Sadale , Sidharth R. Pardeshi , Divya D. Lad , Pramod S. Patil , Chan-Wook Jeon , Dhanaji S. Dalavi","doi":"10.1016/j.jelechem.2024.118800","DOIUrl":"10.1016/j.jelechem.2024.118800","url":null,"abstract":"<div><div>This study explores the synthesis of ultrathin flower architecture of spinel-structured Co<sub>3</sub>O<sub>4</sub> electrodes, on nickel foam using a double hydrothermal method, followed by annealing at 250 °C for 4 h. We systematically investigate the effects of varying reaction times and additional Co<sup>2+</sup> treatment during the second hydrothermal process on the morphology and electrochemical properties of Co<sub>3</sub>O<sub>4</sub>. Field emission scanning electron microscopy (FE-SEM) images confirm the formation of self-supported hierarchical flowers, characterized by sharp, spike-like nanowires (16–33 nm in diameter) arranged radially. The self-supported optimized hierarchical Co<sub>3</sub>O<sub>4</sub> thin film, characterized by its unique architecture and substantial mass loading of 4.6 mg cm<sup>−2</sup>, achieved an impressive specific capacitance of 749.48F g<sup>−1</sup> at a scan rate of 10 mV s<sup>−1</sup> (specific capacity of 182.16 mAh g<sup>−1</sup>) in 2 M KOH electrolyte and retained 64 % of its initial capacitance after 5000 cycles. Furthermore, a symmetric device demonstrated the ability to illuminate a red LED for approximately 120 s when two devices were connected in series.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"976 ","pages":"Article 118800"},"PeriodicalIF":4.1,"publicationDate":"2024-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142658175","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

Corrigendum to “A comprehensive electrochemical analysis revealing the surface oxidation behavior difference between pyrite and arsenopyrite” [J. Electroanal. Chem. 969 (2024) 118552] 对 "揭示黄铁矿和砷黄铁矿表面氧化行为差异的综合电化学分析 "的更正 [J. Electroanal.

IF 4.1 3区化学

Journal of Electroanalytical Chemistry Pub Date : 2024-11-15 DOI: 10.1016/j.jelechem.2024.118728

Jialei Li , Zhicheng Liu , Shunfu Ao , Shuai Ning , Ruizeng Liu , Wenqing Qin

引用次数: 0

The microstructure and energy-band structure coupling regulation of Ti-doped seed layer for the NiO electrochromic composite films 氧化镍电致变色复合膜掺钛种子层的微观结构与能带结构耦合调控

IF 4.1 3区化学

Journal of Electroanalytical Chemistry Pub Date : 2024-11-13 DOI: 10.1016/j.jelechem.2024.118801

Xiaoqiang Wang , Kaiyin Zuo , Mingyu Ma , Nan Zhang , Wenbo Gao , Mingya Li , Lei Wu

{"title":"The microstructure and energy-band structure coupling regulation of Ti-doped seed layer for the NiO electrochromic composite films","authors":"Xiaoqiang Wang , Kaiyin Zuo , Mingyu Ma , Nan Zhang , Wenbo Gao , Mingya Li , Lei Wu","doi":"10.1016/j.jelechem.2024.118801","DOIUrl":"10.1016/j.jelechem.2024.118801","url":null,"abstract":"<div><div>Structure regulation and doping modification are important means to enhance the electrochemical and electrochromic performance of anode NiO electrochromic films. How to improve cycle stability is crucial for the application of NiO electrochromic films. In this work, we prepared Ti-doped seed layers with varying precise chemical stoichiometry ratios through the sol–gel spin coating method. Subsequently, NiO composite films were successfully fabricated on these seed layers through a simple hydrothermal process. Notably, among all the samples, the A 1/8 sample exhibits superior electrochromic performance, including a large optical modulation amplitude (69.61 % at 550 nm), faster response time (5.0 and 6.2 s), high coloring efficiency (33.87 cm<sup>2</sup>/C), and excellent cycle stability (3300 cycles). The seed layer plays a crucial role in preventing direct contact between the electrolyte and the electrode, inducing the growth of self-assembled structures, and enhancing adhesion between the film and the electrode. The Ti-doped seed layer can regulate the composite film microstructure and band structure, impacting the film electrochromic properties. In this work, we demonstrate that the cycle stability of the NiO composite films is improved through dual regulation of structure and doping. The A 1/8 sample exhibits superior cycle stability, attributed to the coupling effect of multi-channel nanostructure, and reduces interface barrier with FTO.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"976 ","pages":"Article 118801"},"PeriodicalIF":4.1,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142658171","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

A screening method for film-forming additive in high-voltage graphite/LiCoO2 高压石墨/钴酸锂成膜添加剂的筛选方法

IF 4.1 3区化学

Journal of Electroanalytical Chemistry Pub Date : 2024-11-13 DOI: 10.1016/j.jelechem.2024.118788

Siwu Wang , Huajun Guo , Xinhai Li , Zhixing Wang , Wenjie Peng , Jiexi Wang , Hui Duan , Guangchao Li , Guochun Yan

{"title":"A screening method for film-forming additive in high-voltage graphite/LiCoO2","authors":"Siwu Wang , Huajun Guo , Xinhai Li , Zhixing Wang , Wenjie Peng , Jiexi Wang , Hui Duan , Guangchao Li , Guochun Yan","doi":"10.1016/j.jelechem.2024.118788","DOIUrl":"10.1016/j.jelechem.2024.118788","url":null,"abstract":"<div><div>Using film-forming additive is an important approach to address the incompatibility between high-reactive electrodes and electrolytes. However, the design and screening of these film-forming additives still rely on a trial-and-error method, which is inefficient and costly. Herein, we established a method for screening additives based on theoretical calculations, and supplemented by short-term experiments. Four sulfur-containing additives, 1,3,2-dioxathiane 2-oxide (PRS), 1,3-propanediolcyclic sulfate (PCS), 1,5,2,4-dioxadithiane 2,2,4,4-tetraoxide (MMDS), sulfolane (Sul), were selected for investigation. The theoretical calculation results indicated that the additive with a greater negative adsorption energy on the cathode than the solvent facilitate film formation on the cathode. This principle can also be applied to screen the anode film-forming additive. However, the calculated results can only provide the insight into the additives’ capacity to participate in film formation, without revealing the stability of the resulting interfacial film or the improvement in the battery’s electrochemical performance. To address this limitation, three efficient short-term experimental methods were designed to characterize the stability of interfacial film: electrochemical impedance spectroscopy, high-temperature (45 °C) storage, and chronoamperometry. The proposed method, combing experiments and theoretical calculation, improves the accuracy for screening of film-forming additives.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"976 ","pages":"Article 118788"},"PeriodicalIF":4.1,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142658174","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

Understanding the electrocatalytic role of magnesium doped bismuth copper titanate (BCTO) in oxygen evolution reaction 了解掺镁钛酸铜铋（BCTO）在氧进化反应中的电催化作用

IF 4.1 3区化学

Journal of Electroanalytical Chemistry Pub Date : 2024-11-13 DOI: 10.1016/j.jelechem.2024.118803

Sarvatej Kumar Maurya, Amisha Soni, Manisha Malviya, Dhanesh Tiwary

{"title":"Understanding the electrocatalytic role of magnesium doped bismuth copper titanate (BCTO) in oxygen evolution reaction","authors":"Sarvatej Kumar Maurya, Amisha Soni, Manisha Malviya, Dhanesh Tiwary","doi":"10.1016/j.jelechem.2024.118803","DOIUrl":"10.1016/j.jelechem.2024.118803","url":null,"abstract":"<div><div>Designing high-efficiency electrocatalysts for water oxidation has become increasingly important in the catalysis field owing to its implications for renewable energy production and storage. The production of hydrogen (H<sub>2</sub>) from water is hampered by the very sluggish kinetics of the water-splitting process. Enhancement of effective oxygen evolution reaction (OER) electrocatalysts is also required to understand the primary barrier to OER. This article investigates the electrochemical activity of magnesium-doped bismuth copper titanate (Mg-BCTO) as an efficient catalyst for the OER in water electrolysis, a critical step in hydrogen production for sustainable energy. The synthesized materials, including various stoichiometries of Mg-doped BCTO, undergo thorough physical and electrochemical characterization using XRD, FT-IR, Raman, SEM, TEM, XPS, CV, EIS, and Tafel polarization analyses. Remarkably, Mg0.1 doped BCTO demonstrates superior performance, achieving a current density of 10 mA cm<sup>−2</sup> at a very low overpotential (η<sub>10</sub>) of 265 mV and with a Tafel slope of 92 mV dec<sup>−1</sup>. This finding not only highlights the electrocatalytic efficiency of Mg doped BCTO but also positions it as a promising model for the development of highly active and stable water oxidizing catalysts, contributing to the advancement of clean energy technologies.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"975 ","pages":"Article 118803"},"PeriodicalIF":4.1,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142655337","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

An anti-freezing hydrogel electrolyte based on hydroxyethyl urea for dendrite-free Zn ion batteries 一种基于羟乙基脲的抗冷冻水凝胶电解质，用于无树枝状晶粒的锌离子电池

IF 4.1 3区化学

Journal of Electroanalytical Chemistry Pub Date : 2024-11-12 DOI: 10.1016/j.jelechem.2024.118797

Yuxin Cui , Shunshun Zhao , Xiaowei Zhao , Lili Liu , Shimou Chen

{"title":"An anti-freezing hydrogel electrolyte based on hydroxyethyl urea for dendrite-free Zn ion batteries","authors":"Yuxin Cui , Shunshun Zhao , Xiaowei Zhao , Lili Liu , Shimou Chen","doi":"10.1016/j.jelechem.2024.118797","DOIUrl":"10.1016/j.jelechem.2024.118797","url":null,"abstract":"<div><div>Aqueous zinc ion batteries are considered as a promising energy storage resource due to their high security, abundant resources and low price. However, the development of aqueous zinc ion batteries has been severely hindered by compulsive dendrite generation, serious side reactions and poor temperature adaptability. Herein, we used hydroxyethyl urea as a hydrogel electrolyte additive to address above-mentioned challenges. Hydroxyethyl urea can break the hydrogen bonds (HBs) of water and enhancing the freezing-tolerance ability of the electrolyte. Meanwhile, hydroxyethyl urea can prevent the corrosion issue and inhibition of Zn dendrites. Consequently, the Zn//Zn symmetric battery can sustain stable cycling for over 3000 h at 1 mA cm<sup>−2</sup>, and it achieves a high coulombic efficiency of 99.6 %. Even at −40 ℃ the batteries show excellent cycling stability, the Zn//Zn symmetry battery can achieve steadily cycles over 3000 h. The Zn//NVO battery equipped with the altered electrolyte exhibits enhanced capacity retention compared to the one without additives.It demonstrates not only excellent cycling stability at room temperature but also maintains commendable functionality down to −40 ℃, validating the method’s efficacy. This work provides a simple strategy for enhancing low temperature performance of zinc ion batteries.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"976 ","pages":"Article 118797"},"PeriodicalIF":4.1,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142658172","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

Ultra-thin FeVO4 modified Al-doped ZnO nanorods photoanode towards efficient photoelectrochemical water oxidation 实现高效光电化学水氧化的超薄 FeVO4 改性铝掺杂氧化锌纳米棒光电阳极

IF 4.1 3区化学

Journal of Electroanalytical Chemistry Pub Date : 2024-11-12 DOI: 10.1016/j.jelechem.2024.118790

Ruyi Wang , Caiyun Chen , Yuxin Kan , Wenjun Fang , Xingzhi Li , Lingling Wang , Yong Jia

引用次数: 0

High-specific capacitance, binder-free composite electrodes prepared from carbon dots embedded in copper oxide-nickel oxide nanowires grown on nickel foam for asymmetric supercapacitors 由嵌入在泡沫镍上生长的氧化铜-氧化镍纳米线中的碳点制备的用于不对称超级电容器的高特异电容、无粘结剂复合电极

IF 4.1 3区化学

Journal of Electroanalytical Chemistry Pub Date : 2024-11-12 DOI: 10.1016/j.jelechem.2024.118792

Wasinee Pholauyphon , Thanapat Jorn-am , Preeyanuch Supchocksoonthorn , Kulpriya Phetcharee , Natee Sirisit , Jedsada Manyam , Chalathorn Chanthad , Tanagorn Sangtaweesin , Peerasak Paoprasert

{"title":"High-specific capacitance, binder-free composite electrodes prepared from carbon dots embedded in copper oxide-nickel oxide nanowires grown on nickel foam for asymmetric supercapacitors","authors":"Wasinee Pholauyphon , Thanapat Jorn-am , Preeyanuch Supchocksoonthorn , Kulpriya Phetcharee , Natee Sirisit , Jedsada Manyam , Chalathorn Chanthad , Tanagorn Sangtaweesin , Peerasak Paoprasert","doi":"10.1016/j.jelechem.2024.118792","DOIUrl":"10.1016/j.jelechem.2024.118792","url":null,"abstract":"<div><div>The binder-free electrodes based on CuO-NiO and sodium polyacrylate-derived carbon dots (CDs) composites were simply prepared on nickel foam in two steps: hydrothermal synthesis and thermal annealing. A specific capacitance as high as 635 F g<sup>−1</sup> (at 5 mV s<sup>−1</sup>) was achieved with the electrodes containing CDs embedded in the CuO-NiO nanowires, compared to only 468 F g<sup>−1</sup> for the CuO-NiO nanowire electrode without CDs, representing a 136 % improvement. To provide mechanistic insights on the supercapacitor performance, electrochemical analysis was carried out, and it was found that synergistic effects from CuO-NiO and CDs gave an optimum contribution of surface/diffusion processes of charge transfer. Asymmetric supercapacitor was also fabricated using activated carbon as a negative electrode and CDs/CuO-NiO@Ni-foam as a positive electrode, giving a 1.5 V, highest energy density of 20.3 Wh kg<sup>−1</sup> at power density of 151.1 W kg<sup>−1</sup>. Due to simplicity and extraordinary performance, the binder-free CDs/CuO-NiO composite electrodes are potential candidates for the mainstream supercapacitors, and the strategy detailed in this work also provides an innovative, practical way for an electrode design for energy storage devices.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"976 ","pages":"Article 118792"},"PeriodicalIF":4.1,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142658169","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

Efficient hybrid supercapacitor performance enabled by large surface area of 2D mesoporous zinc sulfide nano-sheets synthesized via microwaves 通过微波合成的大表面积二维介孔硫化锌纳米片实现高效混合超级电容器性能

IF 4.1 3区化学

Journal of Electroanalytical Chemistry Pub Date : 2024-11-12 DOI: 10.1016/j.jelechem.2024.118794

Najam Ul Hassan , Nawishta Jabeen , Waqar Younas , Fahim Ahmed , Ahmad Hussain , Sana Ullah Asif , Majed M. Alghamdi , Muhammad Naveed

{"title":"Efficient hybrid supercapacitor performance enabled by large surface area of 2D mesoporous zinc sulfide nano-sheets synthesized via microwaves","authors":"Najam Ul Hassan , Nawishta Jabeen , Waqar Younas , Fahim Ahmed , Ahmad Hussain , Sana Ullah Asif , Majed M. Alghamdi , Muhammad Naveed","doi":"10.1016/j.jelechem.2024.118794","DOIUrl":"10.1016/j.jelechem.2024.118794","url":null,"abstract":"<div><div>Researchers have shown a significant amount of interest in synthesizing high energy density supercapacitors using a simplest, fast, and low cost technique. The electrochemical performance of supercapacitors can be impacted by the surface area and morphology of electrode materials. A one-step, rapid, and economical microwave-assisted synthesis technique was employed in this study in order to prepare mesoporous nanosheets that are composed of zinc sulfide. The ZnS-based nanosheets possess a large surface area of ∼120 m<sup>2</sup>g<sup>−1</sup> and a mesoporous structure of a pore diameter of <22 nm, which offers numerous electrochemical active sites and it facilitates an excellent super capacitive performance, which is due to its shortened ion/electron diffusion path. The prepared mesoporous nanosheets exhibit a higher specific capacitance of 2282 Fg<sup>−1</sup> (1037 C/g) when subjected to a 1 Ag<sup>−1</sup> in 2 M KOH aqueous electrolyte with high capability rate. The fabricated device exhibits a high specific capacitance of 252.5 Fg<sup>−1</sup> (140 C/g) at 1 Ag<sup>−1</sup>, which produces a remarkable energy density of about 90 Whkg<sup>−1</sup> at 800 Wkg<sup>−1</sup> value of power density and an excellent retention of ∼95 % after 10,000 cycles at 6 Ag<sup>−1</sup>. This study designed an instant, straightforward and low-cost approach to fabricate ZnS nanosheet electrode materials that exhibit excellent performance for supercapacitor applications.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"975 ","pages":"Article 118794"},"PeriodicalIF":4.1,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142655338","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

Analytical and numerical models for impedance of a button SOFC anode 按钮式 SOFC 阳极阻抗的分析和数值模型

IF 4.1 3区化学

Journal of Electroanalytical Chemistry Pub Date : 2024-11-12 DOI: 10.1016/j.jelechem.2024.118773

Marisa Knappe, Andrei Kulikovsky

引用次数: 0