Ionics最新文献

{"title":"Disposable graphite paper for rapid detection of clothianidin","authors":"Zongyuan Zhang,&nbsp;Yuan Yang,&nbsp;Huili Luo,&nbsp;Qiang Fu,&nbsp;Jia Zhao","doi":"10.1007/s11581-025-06081-y","DOIUrl":"10.1007/s11581-025-06081-y","url":null,"abstract":"<div><p>Clothianidin, a widely used neonicotinoid insecticide, can adversely affect human health at elevated concentrations, particularly impacting the nervous, respiratory, and digestive systems. This study addresses the urgent need for rapid detection of clothianidin in environmental samples by developing an electrochemical sensor using flexible graphite paper for the first time. Scanning electron microscopy (SEM) was employed to characterize the electrodes, and cyclic voltammetry was used to analyze their electrochemical behavior. The results indicated that the reduction of clothianidin is an irreversible process, with nitro groups being reduced to hydroxylamine derivatives. Under optimized electroanalytical conditions, a linear response for clothianidin was observed in the concentration range of 10 to 50 μM, with detection and quantification limits of 0.04 μM and 0.13 μM, respectively. Recovery rates in tomato and lake water samples ranged from 80.7 to 100.2%, demonstrating the sensor’s potential for rapid and accurate detection of clothianidin in complex environmental matrices.</p></div>","PeriodicalId":599,"journal":{"name":"Ionics","volume":"31 3","pages":"2943 - 2952"},"PeriodicalIF":2.4,"publicationDate":"2025-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143554017","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}

{"title":"Electrochemical insights of cost-effectively synthesized vanadium MOF: unlocking a new path for supercapacitor electrode materials","authors":"Arif Mohamed Shahul Hameed,&nbsp;Ganesan Shanmugam,&nbsp;Chandru Gunasekaran,&nbsp;Barani Kumar Duvaragan","doi":"10.1007/s11581-025-06064-z","DOIUrl":"10.1007/s11581-025-06064-z","url":null,"abstract":"<div><p>Vanadium metal–organic frameworks have made significant strides in energy storage devices, especially supercapacitors. However, the high cost of vanadium precursors and their toxicity has become a barrier to their wide application. To overcome this, ammonium metavanadate is used as a low-cost precursor for the synthesis of vanadium MOF through a simple solvothermal process and its application in supercapacitors for the first time. This cost-effectively prepared vanadium MOF (V MOF) features a branched rod-like morphology and is subjected to various electrochemical tests to assess its potential as an electrode material. V MOF exhibited a three-electrode specific capacitance (<i>C</i>_SC) of 43 Fg⁻¹ at 1 A g⁻¹ and a charge transfer resistance (<i>R</i>_ct) of 10.7 Ω. It exhibited excellent stability performance by retaining 94% of its coulombic efficiency after 10,000 cycles. An asymmetric supercapacitor device was fabricated using V MOF, which exhibited an <i>R</i>_ct of 11.4 Ω. The device delivered an energy density of 4.5 W h kg⁻¹ at a power density of 330.6 W kg⁻¹ with a <i>C</i>_SC of 4.1 Fg⁻¹ at 1 Ag⁻¹ and retained 87% of its energy efficiency after 8000 cycles. The formation of V MOF from the low-cost precursor shows that this can be an effective and cost-effective electrode material, hence opening further research and development in the area.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":599,"journal":{"name":"Ionics","volume":"31 3","pages":"2909 - 2918"},"PeriodicalIF":2.4,"publicationDate":"2025-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143553969","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}

{"title":"Advanced α-phase transition metal hydroxide nanostructures and their composites for energy storage electrode materials","authors":"Rajkamal Arya,&nbsp;Tanya Dagar,&nbsp;A. K. Sinha","doi":"10.1007/s11581-024-06051-w","DOIUrl":"10.1007/s11581-024-06051-w","url":null,"abstract":"<div><p>Transition metal hydroxides (TMH) have become more popular than transition metal oxides (TMO) as electrode materials for energy storage because these materials have higher specific capacitance. Among TMH materials, Fe-Co hydroxides have garnered significant attention due to their exceptional charge storage capability, abundance, and non-toxic nature. In this study, the co-precipitation method has been used to synthesize micro-flower-like bimetallic alpha-FeCo₂(OH)₆ (α-FCH) and its nanocomposite with reduced graphene oxides (rGO + α-FCH). Synchrotron X-ray diffraction (SXRD) analysis has confirmed the presence of the alpha phase in the synthesized FCH nanostructure. The cyclic voltammetry plot confirmed the pseudocapacitive behavior of these electrodes. Specifically, high specific capacities of α-FCH and the nanocomposite rGO + α-FCH were observed to be 608 mAh/g and 1335 mAh/g, respectively, at a current density of 0.1 A/g. After the next higher current density, an initial dip in the electrode performance was observed for both the samples, but the performance was recovered (self-healing) after further charging. Degradation of performance and self-healing were attributed to the transition of the electrode material from α-FCH to β-FCH phase on the first few charging-discharging cycles, and back to α-FCH (self-healing). To assess the stability of the α-FCH electrodes, a cyclic stability test was performed for 500 cycles at a current density of 2.2 A/g. The results indicated that the α-FCH electrode retained 65% of its initial performance, enhancing its durability and potential for practical energy storage applications.</p></div>","PeriodicalId":599,"journal":{"name":"Ionics","volume":"31 3","pages":"2577 - 2591"},"PeriodicalIF":2.4,"publicationDate":"2025-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143553967","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}

{"title":"Progress in estimating the state of health using transfer learning–based electrochemical impedance spectroscopy of lithium-ion batteries","authors":"Guangheng Qi,&nbsp;Guangwen Du,&nbsp;Kai Wang","doi":"10.1007/s11581-025-06065-y","DOIUrl":"10.1007/s11581-025-06065-y","url":null,"abstract":"<div><p>With the widespread application of energy storage systems, health monitoring of lithium-ion batteries (LIBs) has become important. Transfer learning (TL) provides new ideas and methods for battery health management and life prediction in the field of battery life prediction. This article spotlights the application of TL in enhancing electrochemical impedance spectroscopy (EIS) for the state of health (SOH) estimation of LIBs. It delineates the pivotal role of TL in addressing data scarcity and domain discrepancies to refine prediction accuracy. The review synthesizes recent advancements in utilizing TL with EIS data, detailing the methodology from experimental data sourcing to feature extraction, accuracy metrics, and performance analysis. It concludes by forecasting potential research directions in leveraging TL for more precise health diagnostics of LIBs and life cycle prediction.</p></div>","PeriodicalId":599,"journal":{"name":"Ionics","volume":"31 3","pages":"2337 - 2349"},"PeriodicalIF":2.4,"publicationDate":"2025-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143553877","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}

{"title":"Loading Pt onto layered Ti3C2 MXene to become an efficient and stable fuel cell catalyst","authors":"Kui Cao,&nbsp;Zhen Tan,&nbsp;Qi Lv,&nbsp;Fanen Zeng,&nbsp;Xun Yang,&nbsp;Yue Han,&nbsp;Bing Xu,&nbsp;Lu Lu","doi":"10.1007/s11581-025-06070-1","DOIUrl":"10.1007/s11581-025-06070-1","url":null,"abstract":"<div><p>In this paper, a distinctive two-dimensional layered material, MXene, was acquired by etching MAX phase material with HF, which possesses excellent electrical conductivity and corrosion resistance. Employing MXene as the carrier, Pt nanoparticles were successfully loaded onto Ti₃C₂ MXene through the glycol condensation reduction approach. This method features controllable conditions, high efficiency, and environmental friendliness. The fabricated Pt/Ti₃C₂ MXene exhibits outstanding electrochemical activity and remarkable cycling stability, addressing the issues of facile corrosion and poor stability encountered by traditional Pt/C. The electrochemical active surface area (ECSA) of Pt/Ti₃C₂ MXene was determined to be 87.6 m²/g via cyclic voltammetry testing. In the accelerated degradation experiment, after 10,000 cycles, the activity of Ti₃C₂ MXene decreased by merely 9.8%, while that of Pt/C declined by 25.2%. This disparity can be attributed to Ti₃C₂ MXene unique layered structure, high electrical conductivity, and other favorable physicochemical properties. It not only demonstrates that Ti₃C₂ MXene is an excellent catalyst carrier but also fully substantiates that Pt/Ti₃C₂ MXene holds greater advantages over traditional Pt/C. Hence, Pt/Ti₃C₂ MXene has substantial potential as a fuel cell catalyst.</p></div>","PeriodicalId":599,"journal":{"name":"Ionics","volume":"31 3","pages":"2691 - 2699"},"PeriodicalIF":2.4,"publicationDate":"2025-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143553880","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}

{"title":"Hierarchical tungsten oxide flower-rod architectures synthesized by hydrothermal route and its applications in electrochromism","authors":"Xueqi Chen,&nbsp;Yinghui Tang,&nbsp;Han Yang,&nbsp;Xiang Qi","doi":"10.1007/s11581-025-06077-8","DOIUrl":"10.1007/s11581-025-06077-8","url":null,"abstract":"<p>A hierarchical tungsten oxide flower-rod architecture, which provides additional active sites for redox in electrochromic devices (ECDs), was prepared by hydrothermal method. WO₃ electrochromic (EC) thin films were prepared by spin-coating, and their electrochromic ability and electrochemical properties were measured. The complete oxidation of the electrochromic layer in the electrochromic device was promoted due to the large surface of the layered flower-rod structure providing active sites for ion transfer, resulting in a yellow–brown color in the bleached state (2.6 V) and a grey-blue color in the colored state (− 2.6 V). In addition, tungsten oxide with a hierarchical flower-rod structure exhibits good electrochemical stability. This work investigates the link between ionic redox efficiency and multicolor electrochromic performance, paving the way for the design of multicolor ECDs with a single inorganic EC layer.</p>","PeriodicalId":599,"journal":{"name":"Ionics","volume":"31 3","pages":"2869 - 2877"},"PeriodicalIF":2.4,"publicationDate":"2025-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143553879","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}

{"title":"Investigation of structural and optical properties of SmCrO3 orthochromite compound prepared via sol–gel process","authors":"Wiem Boujelbene,&nbsp;A. Ben Jazia Kharrat,&nbsp;S. Kammoun,&nbsp;N. Chniba-Boudjada,&nbsp;K. Khirouni,&nbsp;W. Boujelben","doi":"10.1007/s11581-025-06078-7","DOIUrl":"10.1007/s11581-025-06078-7","url":null,"abstract":"<div><p>The SmCrO₃ compound was synthesized using the sol–gel method. Structural analysis via X-ray diffraction confirmed that the compound is pure, monophasic, and crystallizes in an orthorhombic structure with a <i>Pnma</i> space group. Optical properties were examined using infrared (IR) and UV–Vis absorption spectroscopy. The IR spectrum showed distinct absorption peaks that could be attributed to the O–Cr–O and Cr–O vibrations. The Tauc model applied to UV–Vis data estimated the direct optical band gap to be 3.3eV. Additional optical parameters, including Urbach energy, optical extinction coefficient, and refractive index, were calculated from absorbance measurements. Furthermore, the penetration depth, optical conductivity, and dispersion energy parameters were analyzed as a function of the incident photon's wavelength. The UV–Vis absorbance spectrum, attributed to the 3d–3d transitions of Cr³⁺ ions and the 4f–4f transitions of Sm³⁺ ions, provided insights into the electronic structure of the SmCrO₃ sample. A Tanabe-Sugano diagram was constructed based on a theoretical Racah analysis. These findings suggest that the synthesized sample has strong potential for applications in optoelectronic devices.</p></div>","PeriodicalId":599,"journal":{"name":"Ionics","volume":"31 3","pages":"3037 - 3052"},"PeriodicalIF":2.4,"publicationDate":"2025-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143553881","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}

{"title":"Optimizing lithium-ion diffusion in LiFePO4: the impact of Ti4+ doping on high-rate capability and electrochemical stability","authors":"Tai Kang,&nbsp;Yanshuang Meng,&nbsp;Xingzhong Liu","doi":"10.1007/s11581-025-06075-w","DOIUrl":"10.1007/s11581-025-06075-w","url":null,"abstract":"<div><p>This study aims to enhance the electrochemical performance of lithium iron phosphate (LiFePO₄) cathode materials through Ti⁴⁺ ion doping strategy, in order to address the challenges of low conductivity and slow lithium-ion diffusion rates. We synthesized iron phosphate precursors with different Ti⁴⁺ doping levels using the chemical precipitation method and successfully prepared LiFePO₄ material by the high-temperature solid-phase method, which improves the uniformity of ion doping. By systematically studying the effect of Ti⁴⁺ doping on material structure, morphology, and electrochemical properties, we found that Ti⁴⁺ successfully entered the LiFePO4, without affecting its morphology or lattice. This structural change had a positive impact on the electrochemical performance of the material. The discharge-specific capacities of 2% Ti⁴⁺-doped LiFePO₄ samples at 0.1, 1, 5, and 10 C reached 161.0, 132.4, 105.3, and 92.6 mAh g⁻¹, respectively, demonstrating excellent electrochemical performance. Its lithium-ion diffusion coefficient was also significantly better than that of other samples. The comprehensive analysis results from XRD, SEM, XPS, and electrochemical testing show that the appropriate amount of Ti⁴⁺ doping optimizes the diffusion path of lithium-ions and increases the charge transfer rate, thereby significantly improving the electrochemical performance of LiFePO₄. This discovery not only enriches the understanding of the modification mechanism of lithium-ion battery cathode materials, but also provides important scientific basis and practical guidance for the development of high-performance lithium-ion battery cathode materials.</p></div>","PeriodicalId":599,"journal":{"name":"Ionics","volume":"31 3","pages":"2419 - 2428"},"PeriodicalIF":2.4,"publicationDate":"2025-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143553834","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}

{"title":"PVP-assisted synthesis of LiFePO4/C cathode material for Li-ion storage","authors":"A. Movahedian,&nbsp;S. M. Masoudpanah,&nbsp;A. Sarmadi,&nbsp;M. Hasheminiasari","doi":"10.1007/s11581-024-06055-6","DOIUrl":"10.1007/s11581-024-06055-6","url":null,"abstract":"<div><p>In this study, a solution combustion synthesis method was employed using polyvinylpyrrolidone (PVP) as fuel to prepare LiFePO₄ (LFP) powders. The effects of PVP contents on the structural, microstructural, and electrochemical properties were investigated by various characterization methods. The as-combusted powders were calcined at 750 °C for 6 h under an Ar-5% H₂ atmosphere, resulting in the well-crystalline LiFePO₄ powders without any impurity α-Fe₂O₃ and Fe₂P phases. The LFP powders were composed of large spherical LiFePO₄ particles (1 <span>(mu)</span>m) in which the specific surface area and pore size were dependent on the PVP fuel content. The LFP powders prepared by a mass ratio of PVP to metal nitrate of 3 had the highest specific surface area of 328 m² g⁻¹, leading to excellent cycling performance such as a stable coulombic efficiency of 100% and a high capacity retention of 92% (from 84 to 78 mAh g⁻¹) for 500 charge/discharge cycles at a current rate of 1C.\u0000</p></div>","PeriodicalId":599,"journal":{"name":"Ionics","volume":"31 3","pages":"2407 - 2417"},"PeriodicalIF":2.4,"publicationDate":"2025-01-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143553750","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}

{"title":"Capacity estimation of lithium-ion batteries based on segment IC curve data dimensionality reduction and reconstruction methods","authors":"Jianping Wen,&nbsp;Chenze Wang,&nbsp;Zhuang Zhao,&nbsp;Ze Sun","doi":"10.1007/s11581-025-06063-0","DOIUrl":"10.1007/s11581-025-06063-0","url":null,"abstract":"<div><p>Monitoring and accurately predicting battery capacity are critical to the development of advanced intelligent battery management systems (BMS). Data-driven battery prediction studies rely on the assumption of complete data and stable charge/discharge patterns. Enabling on-board prediction of batteries in non-regular charging and discharging patterns remains a challenging endeavor. To tackle this issue, this study introduces an innovative method for predicting battery capacity using the starting charging segment data to reconstruct incremental capacity (IC) curves. Firstly, the IC curve containing the degradation trend law is obtained by combining the interval point taking method with Locally Weighted Scatterplot Smoothing (LOWESS) smoothing, and the IC curve is dimensionally reduced to decompose into the voltage–time curve and the IC-time curve. Then, the voltage–time curve prediction model and the IC-time curve prediction model are built separately using the initial fragment data, and the complete one-dimensional curves are obtained by building the prediction models. The complete IC curve is then obtained by reconstructing the two curves. Finally, the SSA-SVR estimation model is built, extracting the peak of the complete IC curve and the battery capacity to train the Sparrow Search Algorithm-Support Vector Regression (SSA-SVR) model and perform capacity prediction. The method was validated on the NASA and CALCE datasets, and the root mean squared error (RMSE) of the model predictions was 0.0123 A∙h and 0.026 A∙h, respectively. The experimental results show that the starting fragment IC curve data are downscaled and predict the reconstruction of the complete IC curves. The obtained curves are able to extract valid peak information for accurate prediction of battery capacity. This paper reconstructs the complete IC curve data by reducing the dimensionality of the initial fragment data and then extracts features to predict capacity, simulates missing data or charging interruptions, improves the robustness of the model, and provides methodological support for the complement of irregular charging data.</p></div>","PeriodicalId":599,"journal":{"name":"Ionics","volume":"31 3","pages":"2457 - 2471"},"PeriodicalIF":2.4,"publicationDate":"2025-01-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143553966","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}