Journal of Solid State Electrochemistry最新文献

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Synthesis of MnO2/ZIF-8 for the construction of Pt-free counter electrode for dye-sensitized solar cell applications 合成用于构建染料敏化太阳能电池无铂对电极的 MnO2/ZIF-8
IF 2.6 4区 化学
Journal of Solid State Electrochemistry Pub Date : 2024-07-23 DOI: 10.1007/s10008-024-06021-2
Khursheed Ahmad, Praveen Kumar, Rais Ahmad Khan, Dieudonne Tanue Nde, Waseem Raza
{"title":"Synthesis of MnO2/ZIF-8 for the construction of Pt-free counter electrode for dye-sensitized solar cell applications","authors":"Khursheed Ahmad,&nbsp;Praveen Kumar,&nbsp;Rais Ahmad Khan,&nbsp;Dieudonne Tanue Nde,&nbsp;Waseem Raza","doi":"10.1007/s10008-024-06021-2","DOIUrl":"10.1007/s10008-024-06021-2","url":null,"abstract":"<div><p>Herein, we reported the synthesis of MnO<sub>2</sub>/ZIF-8 composite by employing two-step synthetic procedure. The synthesized samples have been characterized by utilizing various sophisticated physicochemical technique such as X-ray diffraction (XRD), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), and energy-dispersive X-ray (EDX) spectroscopy. The synthesized MnO<sub>2</sub>/ZIF-8 has been used as counter electrode (CE) for the fabrication of dye-sensitized solar cells (DSSCs). The effect of annealing temperature was studied, and the highest efficiency of 7.2% with a decent open-circuit voltage (<i>V</i><sub>oc</sub>) of 0.77 V was achieved at 200 °C. The obtained efficiency of 7.2% is reasonable in comparison to the platinum (Pt)-based DSSCs (7.4%). This work proposed the construction of Pt-free CE for the development of cost-effective DSSCs with reasonable performance in terms of efficiency.</p></div>","PeriodicalId":665,"journal":{"name":"Journal of Solid State Electrochemistry","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2024-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141775320","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Eco-friendly synthesis of gold nanoparticles onto glassy carbon electrode and its application to DNA biosensor 在玻璃碳电极上以环保方式合成金纳米粒子并将其应用于 DNA 生物传感器
IF 2.6 4区 化学
Journal of Solid State Electrochemistry Pub Date : 2024-07-23 DOI: 10.1007/s10008-024-06014-1
Phuong Thao Dao Vu, Dien Nguyen Dac, Tam Phuong Dinh
{"title":"Eco-friendly synthesis of gold nanoparticles onto glassy carbon electrode and its application to DNA biosensor","authors":"Phuong Thao Dao Vu,&nbsp;Dien Nguyen Dac,&nbsp;Tam Phuong Dinh","doi":"10.1007/s10008-024-06014-1","DOIUrl":"10.1007/s10008-024-06014-1","url":null,"abstract":"<div><p>This work studies gold nanoparticle (AuNP) nucleation and growth mechanism from deep eutectic solvent (DES)-based choline chloride and glycerol (glyceline) onto glassy carbon electrode (GCE) and its application for DNA biosensor. Investigation of the current density transients indicated that the AuNPs were formed by the simultaneous presence of Au diffusion-controlled 3D nucleation and growth and residual water reaction over the Au nuclei growing surfaces. The AuNP structure was characterized by the field emission scanning electron microscopy, energy dispersive X-ray spectroscopy, and X-ray diffraction. AuNPs were used to fabricate electrochemical DNA sensor. The hybridization was monitored by cyclic voltammetry and electrochemical impedance spectroscopy measurement using potassium ferri/ferrocyanide redox probes <span>({left[Fe{(CN)}_{6}right]}^{3-/4-})</span> as the indicator probe. Results show that the biosensor exhibited a linear correlation to the logarithm of the target DNA concentration ranged from 1.10<sup>−14</sup> M to 1.10<sup>−9</sup> M, and the limit of detection was 1.10<sup>−14</sup> M. Furthermore, the findings indicate that the prepared electrode exhibited excellent reproducibility and long-term stability when applied for determining <i>M. tuberculosis</i> samples.</p></div>","PeriodicalId":665,"journal":{"name":"Journal of Solid State Electrochemistry","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2024-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141775321","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
3D carbonaceous substrates synthesized from melamine sponges for energy storage: Influence of pyrolysis temperature in physicochemical and electrochemical properties 由三聚氰胺海绵合成的三维碳质基底用于能量存储:热解温度对物理化学和电化学性质的影响
IF 2.6 4区 化学
Journal of Solid State Electrochemistry Pub Date : 2024-07-23 DOI: 10.1007/s10008-024-05971-x
Natalia Patricia Páez-Sánchez, E. Córdoba-Tuta, J. Vazquez-Samperio, P. Acevedo-Peña, E. Reguera
{"title":"3D carbonaceous substrates synthesized from melamine sponges for energy storage: Influence of pyrolysis temperature in physicochemical and electrochemical properties","authors":"Natalia Patricia Páez-Sánchez,&nbsp;E. Córdoba-Tuta,&nbsp;J. Vazquez-Samperio,&nbsp;P. Acevedo-Peña,&nbsp;E. Reguera","doi":"10.1007/s10008-024-05971-x","DOIUrl":"10.1007/s10008-024-05971-x","url":null,"abstract":"<div><p>High-energy global requirements have caused a renewed interest in studying and developing new and improved energy storage devices and, precisely, the electrode materials that compose them, which play a fundamental role in determining the device’s performance. Carbon materials are first-class candidates due to their high electrical conductivity, chemical stability, and surface area. Although several carbon materials and their precursors have been studied, melamine sponges stand out for their nitrogen content, allowing them to act as a template and precursor for N-doped, ultralight carbon materials with good mechanical properties and a controlled pore size distribution. This work reports a simple and quick methodology to form ultralight and flexible carbon foam, along with the influence of the pyrolysis temperature on the physicochemical and electrochemical properties of 3D carbonaceous substrates used for energy storage and synthesized from melamine sponges. The substrates exhibit higher 3D porous structure than previously reported materials, with an average pore diameter of 80–90 µm. This morphology, added to the N content, promotes the remarkable electrochemical behavior (MS–950 °C) and cycling stability (MS–1000 °C) of almost 100% of capacitance retention after 10,000 cycles (≈ 60 F/g @1 A/g).</p></div>","PeriodicalId":665,"journal":{"name":"Journal of Solid State Electrochemistry","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2024-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10008-024-05971-x.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141785390","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Modeling solid-state reaction processes: application for the archaeometric study of potteries from Venus Fisica Temple in Pompeii (Italy) 固态反应过程建模:应用于庞贝(意大利)维纳斯菲西卡神庙陶器的考古研究
IF 2.5 4区 化学
Journal of Solid State Electrochemistry Pub Date : 2024-07-22 DOI: 10.1007/s10008-024-06011-4
Francesca Di Turo, Caterina De Vito, Fulvio Coletti, Antonio Doménech-Carbó
{"title":"Modeling solid-state reaction processes: application for the archaeometric study of potteries from Venus Fisica Temple in Pompeii (Italy)","authors":"Francesca Di Turo, Caterina De Vito, Fulvio Coletti, Antonio Doménech-Carbó","doi":"10.1007/s10008-024-06011-4","DOIUrl":"https://doi.org/10.1007/s10008-024-06011-4","url":null,"abstract":"<p>This research employs the voltammetry of immobilized microparticles (VIMP) methodology to analyze a collection of ceramic samples from the temple of <i>Venus Fisica</i> in the archaeological site of Pompeii. The primary objective is to discern their origins and manufacturing processes by the solid-state analysis of the electroactive properties of iron minerals, particularly hematite, extensively investigated for its electrochemical and catalytic characteristics. In our study, we propose a model to elucidate the electrochemical processes involved, building upon prior logistic and nucleation formulations. In this model, we consider the possibility of two superimposed pathways. This approach provides a nuanced understanding of composition changes and mineral crystallinity, factors that can induce significant variations in the voltammetric signal. Consequently, it becomes an effective means to discriminate between different provenances and manufacturing techniques of different potteries. The outcomes of this research contribute valuable insights into the intricate realm of ancient ceramic materials, casting light on their origins and production processes within the historical context of Pompeii.</p>","PeriodicalId":665,"journal":{"name":"Journal of Solid State Electrochemistry","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141738583","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Sensing reaching the stars: mild condition ZnO defect development for vitamin detection 感知星空:用于维生素检测的温和条件氧化锌缺陷开发
IF 2.5 4区 化学
Journal of Solid State Electrochemistry Pub Date : 2024-07-22 DOI: 10.1007/s10008-024-06020-3
Anton Abramyan, Mikhail Golovin, Valeriya Zakharchenkova, Andrey Lalov, Dalibor Stanković, Oleg Bol’shakov
{"title":"Sensing reaching the stars: mild condition ZnO defect development for vitamin detection","authors":"Anton Abramyan, Mikhail Golovin, Valeriya Zakharchenkova, Andrey Lalov, Dalibor Stanković, Oleg Bol’shakov","doi":"10.1007/s10008-024-06020-3","DOIUrl":"https://doi.org/10.1007/s10008-024-06020-3","url":null,"abstract":"<p>Here, we present the preparation and electrochemical evaluation of a vitamin B2-riboflavin (RF) sensor based on hierarchically structured zinc oxide (ZnO) of the wurtzite type. The highly crystalline ZnO obtained under hydrothermal conditions from a zinc peroxocomplex has the appearance of “micro-stars,” with an average size of 10 μm. Development of unusual morphology was accompanied by significant lattice defect introduction. Zinc oxide as an electroactive additive for carbon paste electrode was studied with electrochemical impedance spectroscopy (EIS), cyclic voltammetry (CV), and differential pulse voltammetry (DPV), which revealed excellent charge mobility and low resistivity. Electrochemical properties of the semiconductor allowed for development of riboflavin (RF) electrochemical sensor with an improved linearity range and a low limit of detection. The repeatability and stability of the sensor were at a satisfactory level for real-time measurements.</p><h3 data-test=\"abstract-sub-heading\">Graphical abstract</h3><p>Conventional hydrothermal treatment of zinc peroxocomplex provided star-shaped zinc oxide microparticles with metal-deficient lattice. Increased defect concentration facilitated charge mobility, which helped in developing of sensor for relevant vitamin.</p>","PeriodicalId":665,"journal":{"name":"Journal of Solid State Electrochemistry","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141738584","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Low-cost and stable Li1.5Al0.3Ti1.7Si0.2P2.8O12 glass–ceramics for lithium extraction from seawater 用于从海水中提取锂的低成本、稳定的 Li1.5Al0.3Ti1.7Si0.2P2.8O12 玻璃陶瓷
IF 2.6 4区 化学
Journal of Solid State Electrochemistry Pub Date : 2024-07-22 DOI: 10.1007/s10008-024-06015-0
Bo Chang, Yigang Wang, Yue Dai, Mingjie Du, Haoshen Zhou, Ping He
{"title":"Low-cost and stable Li1.5Al0.3Ti1.7Si0.2P2.8O12 glass–ceramics for lithium extraction from seawater","authors":"Bo Chang,&nbsp;Yigang Wang,&nbsp;Yue Dai,&nbsp;Mingjie Du,&nbsp;Haoshen Zhou,&nbsp;Ping He","doi":"10.1007/s10008-024-06015-0","DOIUrl":"10.1007/s10008-024-06015-0","url":null,"abstract":"<div><p>Rapid development of electronic and grid storage technologies based on lithium-ion batteries are leading to tight supply of lithium resources in the future. Extracting lithium from seawater can completely solve the problem of lithium resource shortage. An electro-deposition method based on a lithium superionic conductive solid-state electrolyte, Li<sub>1.5</sub>Al<sub>0.5</sub>Ge<sub>1.5</sub>(PO<sub>4</sub>)<sub>3</sub> (LAGP), has been reported to obtain metallic lithium from seawater. However, expensive LAGP increases the cost of lithium extraction, while Li<sub>1.3</sub>Al<sub>0.3</sub>Ti<sub>1.7</sub>(PO<sub>4</sub>)<sub>3</sub> (LATP) with relatively lower prices cannot meet the stable requirements. Herein, a low-cost, stable glass–ceramics, Li<sub>1.5</sub>Al<sub>0.3</sub>Ti<sub>1.7</sub>Si<sub>0.2</sub>P<sub>2.8</sub>O<sub>12</sub> (LATSP), has been prepared for lithium extraction from seawater. The LATSP glass–ceramics show good selectivity towards Li<sup>+</sup> and exhibit a high ionic conductivity of 3.98 × 10<sup>−4</sup> S cm<sup>−1</sup> at 22 °C. After soaking in simulated seawater, LATSP showed much better stability than LATP, comparable to LAGP. The resultant LATSP glass–ceramics was successfully employed in a seawater lithium extraction device, with a high lithium extraction Coulombic efficiency of 94.0%. Moreover, the LATSP exhibits an ionic conductivity of 2.80 × 10<sup>−4</sup> S cm<sup>−1</sup> and maintains a complete structure after 45 h of lithium extraction. This work presents an effective and practical Li-ion conducting membrane for lithium extraction from seawater.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":665,"journal":{"name":"Journal of Solid State Electrochemistry","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2024-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141738585","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Electrochemical properties of polythiophene/iron dust composites synthesized using chemical oxidative polymerization 利用化学氧化聚合法合成的聚噻吩/铁粉复合材料的电化学特性
IF 2.6 4区 化学
Journal of Solid State Electrochemistry Pub Date : 2024-07-19 DOI: 10.1007/s10008-024-06008-z
Rizwan Ullah, Misbah Ullah, Nadia Khan, Maheen Rahim
{"title":"Electrochemical properties of polythiophene/iron dust composites synthesized using chemical oxidative polymerization","authors":"Rizwan Ullah,&nbsp;Misbah Ullah,&nbsp;Nadia Khan,&nbsp;Maheen Rahim","doi":"10.1007/s10008-024-06008-z","DOIUrl":"10.1007/s10008-024-06008-z","url":null,"abstract":"<div><p>The supercapacitive properties of the polythiophene (PTh) and its composites with iron dust synthesized by chemical oxidative polymerization are investigated. The UV–Vis, FTIR, TGA, XRD, SEM, and EDX were used to characterize the composites. Iron (Fe) dust is inserted into PTh matrix as confirmed by FTIR, UV–Vis, EDX, and XRD analysis. The TGA shows that composites have higher thermal stability than pure PTh. The SEM reveals highly porous and packed morphology of the composites as compared to pure PTh. Cyclic voltammetry (CV), galvanostatic charge–discharge (GCD), and electrochemical impedance spectroscopy (EIS) show that a 1:1 ratio by mass of PTh and Fe composite displayed greater specific capacitance than pure PTh. The high specific capacitance of the composite material (428.46 F/g at 1 A/g) suggested that the material is suitable for supercapacitor electrode. Cyclic stability is also tested for 1000 cycles at a current density of 1 A/g with excellent retention of 88.89%.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":665,"journal":{"name":"Journal of Solid State Electrochemistry","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2024-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141738632","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Electrical conductivity of pectin-based biopolymer electrolytes: search for a theoretical framework 果胶基生物聚合物电解质的导电性:寻找理论框架
IF 2.5 4区 化学
Journal of Solid State Electrochemistry Pub Date : 2024-07-19 DOI: 10.1007/s10008-024-06018-x
Kailash Kumar, Ikhwan Syafiq Mohd Noor, Shri Prakash Pandey, Bhaskar Bhattacharya, Amit Saxena
{"title":"Electrical conductivity of pectin-based biopolymer electrolytes: search for a theoretical framework","authors":"Kailash Kumar, Ikhwan Syafiq Mohd Noor, Shri Prakash Pandey, Bhaskar Bhattacharya, Amit Saxena","doi":"10.1007/s10008-024-06018-x","DOIUrl":"https://doi.org/10.1007/s10008-024-06018-x","url":null,"abstract":"<p>This paper reports the successful fabrications of polymer electrolytes using biopolymer pectin in conjunction with ammonium azide (NaN<sub>3</sub>) salt by solution casting method. The ionic conductivity of these electrolytes was evaluated using EIS at room temperature. Among the compositions tested, the highest conductivity of 2.3 × 10<sup>−3</sup> S cm<sup>−1</sup> was observed to sample of 5 wt.% of NaN<sub>3</sub>. The charge carriers' concentration (<i>n</i>) and mobility (<i>µ</i>) were calculated to understand the conductivity behavior attributed to dispersoids. For the calculation of <i>n</i> and <i>μ</i>, two theoretical models were used, namely the Trukhan and the S&amp;G Model. The correlations between conductivity, <i>n</i> and <i>μ</i> are discussed.</p>","PeriodicalId":665,"journal":{"name":"Journal of Solid State Electrochemistry","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141738586","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
The effect of coprecipitation and heating temperature on structural evolution and electrochemical performance of iron-based prussian blue analogs 共沉淀和加热温度对铁基普鲁士蓝类似物结构演变和电化学性能的影响
IF 2.6 4区 化学
Journal of Solid State Electrochemistry Pub Date : 2024-07-17 DOI: 10.1007/s10008-024-06005-2
Yuqing Liu, Wencheng Chu, Yaozu Xu, Zijian Yuan, Jiarui Liu, Haitao Zhao, Quan Liu, Wu Zhang
{"title":"The effect of coprecipitation and heating temperature on structural evolution and electrochemical performance of iron-based prussian blue analogs","authors":"Yuqing Liu,&nbsp;Wencheng Chu,&nbsp;Yaozu Xu,&nbsp;Zijian Yuan,&nbsp;Jiarui Liu,&nbsp;Haitao Zhao,&nbsp;Quan Liu,&nbsp;Wu Zhang","doi":"10.1007/s10008-024-06005-2","DOIUrl":"10.1007/s10008-024-06005-2","url":null,"abstract":"<div><p>Iron-based Prussian blue analogs (PBAs) are synthesized using a modified coprecipitation approach at different temperatures to study the effect of coprecipitation reaction temperature on structural and electrochemical performance. The experimental results showed that the iron-based PBAs transferred from the cubic structure to the monoclinic phase as the temperature increased from 5 °C to 60 °C, with the former exhibiting rich-in-boundary morphology and the latter showing a well-defined cubic shape. The electrochemical performance of the samples is closely related to the structure: the PBAs with monoclinic structures exhibit a higher charge/discharge specific capacity than those of PBAs with cubic structures. In addition, the samples are further treated at 270 °C, new phases are probed, and the charge/discharge specific capacity for the HT-PB-60 sample is significantly improved by more than 36.15%.</p></div>","PeriodicalId":665,"journal":{"name":"Journal of Solid State Electrochemistry","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2024-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141719245","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Passivity breakdown of high-strength 7068 aluminum alloy in borate buffer solutions containing chlorides 高强度 7068 铝合金在含氯化物的硼酸盐缓冲溶液中的钝性破坏
IF 2.6 4区 化学
Journal of Solid State Electrochemistry Pub Date : 2024-07-17 DOI: 10.1007/s10008-024-06010-5
Ankur Kumar, Gajanan P. Chaudhari
{"title":"Passivity breakdown of high-strength 7068 aluminum alloy in borate buffer solutions containing chlorides","authors":"Ankur Kumar,&nbsp;Gajanan P. Chaudhari","doi":"10.1007/s10008-024-06010-5","DOIUrl":"10.1007/s10008-024-06010-5","url":null,"abstract":"<div><p>Passivity breakdown mechanism of high-strength 7068 alloy is studied. Breakdown potential varied linearly with log a<sub>Cl</sub><sup>‒</sup>, pH, and square root of scan rate in potentiodynamic polarization tests. Mott-Schottky analysis showed that the dominant defect is cation vacancy. Passive layer characteristics like cation vacancy density and defect annihilation rate are determined. Critical cation vacancy density for pitting obtained from point defect model and the theoretical values are somewhat compatible. Chloride concentration of 0.01 M is too dilute to cause severe localized corrosion, whereas beyond 0.5 M, saturation is achieved in terms of breakdown potential and the cation vacancy density.\u0000</p></div>","PeriodicalId":665,"journal":{"name":"Journal of Solid State Electrochemistry","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2024-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141719246","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
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