International Journal of Electrochemical Science最新文献

{"title":"Tangerine peel-derived nitrogen doped porous carbon as electrode material for high-performance supercapacitors","authors":"Zhihao Gong ,&nbsp;Yuang Guo ,&nbsp;Xiaoli Chen ,&nbsp;Jiangrong Xiao ,&nbsp;Tingting Wang ,&nbsp;Bo Chai","doi":"10.1016/j.ijoes.2025.101081","DOIUrl":"10.1016/j.ijoes.2025.101081","url":null,"abstract":"<div><div>Nitrogen-doped hierarchical meso/microporous carbons were successfully synthesized from tangerine peel through pyrolytic activation at elevated temperature in nitrogen atmosphere, utilizing potassium hydroxide as activator and melamine as nitrogen source. The resulting optimal hierarchical carbon (denoted as NBC-600) possessed a high specific surface area of 601.49 m²·g⁻¹, along with a nitrogen doping level of 2.5 %, both of which contribute significantly to its outstanding supercapacitive performance. Electrochemical evaluations reveal that the NBC-600 electrode delivers an excellent gravimetric specific capacitance of 304.4 F·g⁻¹, accompanied by excellent cycling stability and rate capability. Moreover, a symmetric two-electrode supercapacitor assembled with NBC-600 achieves an energy density of 26.8 Wh·kg⁻¹ at a corresponding power density of 250.0 W·kg⁻¹. Notably, the device demonstrates exceptional cycling stability, retaining 96.9 % of its initial capacitance after 10,000 charge-discharge cycles at a current density of 10 A·g⁻¹. The superior electrochemical properties of NBC-600 surpass that of numerous biomass-derived hierarchical porous carbons, underscoring its feasibility as a cost efficient and high-performance electrode material for next-generation supercapacitors.</div></div>","PeriodicalId":13872,"journal":{"name":"International Journal of Electrochemical Science","volume":"20 8","pages":"Article 101081"},"PeriodicalIF":1.3,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144212391","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":"Advances in self-powered electrochemical systems for sports applications: Harnessing energy and sensing","authors":"Baogen Yang ,&nbsp;Longlong Wang ,&nbsp;Bo Sun","doi":"10.1016/j.ijoes.2025.101080","DOIUrl":"10.1016/j.ijoes.2025.101080","url":null,"abstract":"<div><div>Recent advancements in electrochemical science are enabling the development of self-powered systems that address critical power and sensing needs in modern sports applications. This review highlights how electrochemical principles—primarily in energy conversion, storage, and sensing—underpin next-generation “smart” sports devices. Triboelectric and piezoelectric nanogenerators are focal points, as they harness biomechanical energy from athletic movements and impacts. These energy-harvesting transducers, when integrated with electrochemical storage elements such as batteries or supercapacitors, create self-sustaining power loops that eliminate the need for traditional external power supplies. The review discusses the fundamentals of electrochemical storage materials, including nanostructured metal oxides and carbon-based architectures, detailing how these materials facilitate robust, high-capacity energy buffering in wearable formats. Additionally, electrochemical sensing platforms—particularly those based on sweat analysis—are presented as a non-invasive means to monitor key biochemical markers like lactate and electrolytes, providing actionable insights into performance and fatigue. Emphasis is placed on device architecture and fabrication strategies (including flexible substrates and printing techniques) that enhance wearability, durability, and real-time data capture. Beyond material design, emerging trends in machine learning are explored, showcasing how self-powered electrochemical systems can yield intelligent analytics for coaches and athletes alike. By merging electrochemical storage, energy harvesting, and data processing, these smart sports technologies promise to transform athletic training, competition, and injury prevention. Future prospects encompass multifunctional, integrated devices that leverage improved materials, manufacturing scalability, and AI-driven analysis for widespread deployment in sports performance monitoring.</div></div>","PeriodicalId":13872,"journal":{"name":"International Journal of Electrochemical Science","volume":"20 8","pages":"Article 101080"},"PeriodicalIF":1.3,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144189933","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":"Research on State of Charge estimation method for an improved lithium-ion gas-liquid dynamics model with temperature parameters","authors":"Kuandai Zhang ,&nbsp;Yongjun Tian ,&nbsp;Chengyang Liu ,&nbsp;Huanhuan Li ,&nbsp;Aibin Yi ,&nbsp;Yaping Wang ,&nbsp;Nan Wang ,&nbsp;Lei Pei ,&nbsp;Zhen Wang ,&nbsp;Haobin Jiang","doi":"10.1016/j.ijoes.2025.101073","DOIUrl":"10.1016/j.ijoes.2025.101073","url":null,"abstract":"<div><div>Accurate estimation of the State of Charge (SOC) is fundamental to ensure the safe and reliable operation of lithium-ion batteries, and developing a high-performance battery model is crucial for achieving precise SOC estimation. However, current lithium-ion battery models struggle to balance accuracy and complexity. Against this background, on the basis of further investigating battery polarization phenomena and taking temperature effects into account, this paper constructs an improved gas–liquid dynamics model with temperature parameters and proposes an online SOC estimation method based on this model. The model offers good accuracy, and its voltage equation is only first-order, resulting in low computational cost. This model can more perfectly simulate the voltage rebound characteristics exhibited by the battery as a result of polarization reactions and takes into account the influence of temperature on SOC estimation. Compared with the original gas–liquid dynamics model, this enhanced model improves SOC estimation accuracy. Additionally, the unscented Kalman filter algorithm is introduced to achieve online SOC estimation. Finally, a 3Ah ternary lithium battery is tested under three driving cycles to validate the proposed model and algorithm. The results show that the maximum SOC estimation error is less than 2 % in all cases. When facing initial SOC errors and initial temperature errors, the method rapidly eliminates the impact of initial errors, and the influence of initial errors on subsequent SOC estimation results is minimal, demonstrating strong robustness of the proposed algorithm.</div></div>","PeriodicalId":13872,"journal":{"name":"International Journal of Electrochemical Science","volume":"20 8","pages":"Article 101073"},"PeriodicalIF":1.3,"publicationDate":"2025-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144255093","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":"A review on the application strategies of electrooxidation technology for landfill leachate treatment","authors":"Meiyu Jia ,&nbsp;Yaoping Guo ,&nbsp;Keng Xuan ,&nbsp;Binyu Lu ,&nbsp;Sehrish Sadia","doi":"10.1016/j.ijoes.2025.101078","DOIUrl":"10.1016/j.ijoes.2025.101078","url":null,"abstract":"<div><div>Landfill leachate treatment remains a significant environmental challenge due to its complex composition and high pollutant concentrations. Electrochemical oxidation (EO) has emerged as an effective method for leachate treatment, offering advantages such as strong oxidation capability, mild reaction conditions, and no secondary pollution. However, current research primarily focuses on modifying anode materials, with limited comparative studies across different types and insufficient attention to process design for real-world applications. To address these gaps, this review thoroughly examines the degradation mechanisms of pollutants during EO, including direct oxidation pathways and indirect oxidation mediated by multiple reactive species. It also systematically analyzes the properties of boron-doped diamond (BDD) and various dimensionally stable anodes (DSA) in activating reactive species for landfill leachate treatment. Four practical processes that combine EO with other technologies are proposed, along with a discussion of their respective advantages, disadvantages, and suitable application scenarios. Additionally, we discussed the formation mechanisms of chlorinated by-products in EO and engineering control strategies to mitigate secondary pollution. This review provides a comprehensive reference for selecting and optimizing anode materials, offering valuable insights into the design of hybrid processes to enhance treatment efficiency and improve real-world applicability.</div></div>","PeriodicalId":13872,"journal":{"name":"International Journal of Electrochemical Science","volume":"20 8","pages":"Article 101078"},"PeriodicalIF":1.3,"publicationDate":"2025-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144222523","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":"Multi-physical field simulation and experimental research on inner-jet through-mask electrochemical machining of micro-pit arrays","authors":"Feng Wang,&nbsp;Xinke Yuan,&nbsp;Cheng Zhou,&nbsp;Yiqing Wan,&nbsp;Tao Wang,&nbsp;Xiaokai Wu","doi":"10.1016/j.ijoes.2025.101079","DOIUrl":"10.1016/j.ijoes.2025.101079","url":null,"abstract":"<div><div>Micro-textures such as micro-pits and micro-grooves play a significant role in regulating the surface properties of metal components. Through-mask electrochemical machining (TMECM) is a non-contact machining method based on the principle of anodic dissolution. It utilizes an insulating mask to generate micro-texture features in batches on the surface of workpieces, playing a significant role in surface micro-structure processing. This work presents an inner-jet TMECM method to address the challenges of limited machining depth and a narrow machining dimension range in a micro-pit array TMECM. A gas-liquid two-phase flow field model and an electric field model were established. Based on the coupled simulation, the influence of different inner-jet cathodes on the changes in physical quantities was investigated. The simulation results showed that due to the small coverage area of the contracted cathode bottom, the flow velocity in the frontal gap was as high as 9.16 m/s. This led to a reduction in the area of bubble aggregation and a decrease in the low-conductivity region. Therefore, employing a contracted cathode was beneficial for obtaining higher precision micro-pit arrays. In contrast, when using right-angled and extended cathodes, the larger coverage area of the cathode bottom reduced the flow velocity in the frontal gap to below 3 m/s. This led to an increase in bubble formation and aggregation area, resulting in greater fluctuations in conductivity. Moreover, the high current density region with a current density higher than 50 A/cm² significantly expanded. Therefore, using right-angled and extended cathodes was beneficial for improving the machining efficiency of micro-pit arrays, but the machining accuracy was relatively low. Based on the simulation analysis, comparative experiments were conducted to investigate the coupling effects between inner-jet cathode characteristics and processing parameters on the machining of micro-pit arrays. The resulting variation patterns for micro-pit diameter, depth, and average corrosion coefficient were obtained. Additionally, by utilizing appropriate inner-jet cathodes and machining parameters, the diameter of the micro-pit array can be regulated between 200μm and 470μm, and the depth can be controlled between 0μm and 150μm. This demonstrates that TMECM with an inner-jet cathode can enhance both the dimension range and the depth of micro-pit array machining by regulating the high current density coverage area and electrolyte fluid kinetic energy.</div></div>","PeriodicalId":13872,"journal":{"name":"International Journal of Electrochemical Science","volume":"20 8","pages":"Article 101079"},"PeriodicalIF":1.3,"publicationDate":"2025-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144185442","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":"Recent advances in bioelectrochemical approaches for sustainable environmental remediation","authors":"Mingxia Liang,&nbsp;Guorong Luo,&nbsp;Ping Lei","doi":"10.1016/j.ijoes.2025.101077","DOIUrl":"10.1016/j.ijoes.2025.101077","url":null,"abstract":"<div><div>The degradation of landscape ecosystems due to anthropogenic activities has led to the emergence of innovative ecological remediation strategies. Bioelectrochemical systems (BES), which integrate microbiology and electrochemistry, have demonstrated remarkable potential in addressing this challenge. BES technologies—including microbial fuel cells (MFCs) and microbial electrolysis cells (MECs)—simultaneously facilitate environmental remediation and resource recovery. This review explores recent advances in BES, focusing on the fundamental principles underlying microbial electron transfer, the role of advanced electrode materials, and the optimization of operational parameters to enhance system performance. Furthermore, the review highlights the successful application of BES in remediating polluted water bodies, soils, and sediments, while emphasizing their integration with landscape management practices to restore ecosystem functions. Innovations in reactor design and the incorporation of nanomaterials have enhanced the efficiency and scalability of BES for field applications. By fostering interdisciplinary collaboration across electrochemistry, microbial ecology, and materials science, this review advocates for the adoption of BES as a sustainable and multifunctional approach to ecological remediation. As BES technology progresses toward large-scale implementation, addressing technical challenges, optimizing system configurations, and refining regulatory frameworks will be essential for maximizing ecological benefits and promoting sustainable landscape management.</div></div>","PeriodicalId":13872,"journal":{"name":"International Journal of Electrochemical Science","volume":"20 8","pages":"Article 101077"},"PeriodicalIF":1.3,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144168554","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":"Electropolymerized molecularly imprinted electrochemical sensor for sensitive and selective detection of an antipsychotic compound chlorpromazine","authors":"Hai Zhao,&nbsp;Shuangyang Liu,&nbsp;Xu Kong,&nbsp;Rifeng Zou,&nbsp;Dapeng Zhou","doi":"10.1016/j.ijoes.2025.101076","DOIUrl":"10.1016/j.ijoes.2025.101076","url":null,"abstract":"<div><div>A multi-step fabrication strategy was employed to construct an electrochemical sensor for the selective detection of chlorpromazine hydrochloride (CPZ·HCl), an antipsychotic drug with a narrow therapeutic index. The sensor was developed using a gold-plated glassy carbon electrode, followed by in situ co-electropolymerization of o-phenylenediamine and gold nanoparticles in the presence of CPZ·HCl as a molecular template. The electrode surface was sequentially polished, cleaned, and enhanced with gold deposition, then modified with a nano-molecularly imprinted polymer (nano-MIP) film. After template removal, selective cavities complementary to CPZ·HCl were formed, resulting in a 50 % increase in effective surface area (from 3.6 mm² to 5.5 mm²). The sensor exhibited a dynamic detection range from 100 pM to 1 μM, with a detection limit as low as 150 fM. It demonstrated a rapid response (∼8 min), high selectivity (ΔI ratio &gt;12 against interfering agents), and excellent reproducibility (RSD &lt;5 %). These findings highlight the potential of the nanoMIP sensor as a robust and cost-effective platform for the trace detection of chlorpromazine hydrochloride in clinical and environmental samples.</div></div>","PeriodicalId":13872,"journal":{"name":"International Journal of Electrochemical Science","volume":"20 8","pages":"Article 101076"},"PeriodicalIF":1.3,"publicationDate":"2025-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144137628","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":"Synthesis and electrochemical characterization of C - doped LiFePO4 material for supercapacitor application","authors":"Zaid H. Mahmoud ,&nbsp;Dhuha Nasrallah Abdulla ,&nbsp;Ehsan kianfar","doi":"10.1016/j.ijoes.2025.101075","DOIUrl":"10.1016/j.ijoes.2025.101075","url":null,"abstract":"<div><div>In this study, we present a rapid hydrothermal synthesis of carbon-incorporated lithium ferric phosphate (LiFePO₄/C) and a simple method for fabricating supercapacitors using LiFePO₄/C as positrodes materials. The structure of active materials were analyzed by XRD, Raman spectrum and XPS. The morphology of both pure and C-doped LiFePO₄ was examined by TEM, while their electrochemical properties were evaluated through CV, CP and EIS. The effect of precursor concentration on the morphology and electrochemical performance was studied in 1 M KOH electrolyte solution. The synthesized electrodes demonstrated excellent charge storage abilities, with for Li_0.8Fe_0.2PO₄/C showing highest specific capacity equal of 220 C/g at scan rate of 1 mV/s. An asymmetric supercapactior cell prepared using LiFePO₄/C as the positive electrode achieved a specific capacity of 190 C/g at current density of 1 A/g.</div></div>","PeriodicalId":13872,"journal":{"name":"International Journal of Electrochemical Science","volume":"20 8","pages":"Article 101075"},"PeriodicalIF":1.3,"publicationDate":"2025-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144107686","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":"A point-of-care electrochemical DNA sensor for rapid and sensitive detection of human papillomavirus type 18","authors":"Kun Wang,&nbsp;Lipeng Pei,&nbsp;Haiping Liu","doi":"10.1016/j.ijoes.2025.101074","DOIUrl":"10.1016/j.ijoes.2025.101074","url":null,"abstract":"<div><div>We report the development of a paper-based electrochemical DNA biosensor for the rapid and sensitive detection of human papillomavirus type 18 (HPV 18) at the point of care. The sensor integrates a three-electrode system onto a wax-patterned cellulose substrate, with the working electrode modified using a graphene oxide–gold nanoparticle (GO–AuNP) nanocomposite. This nanostructured surface significantly enhances probe immobilization and electron transfer, enabling reliable signal transduction. Single-stranded DNA probes specific to HPV 18 were covalently attached via EDC/NHS chemistry, and target hybridization was detected using differential pulse voltammetry (DPV). The sensor exhibited a linear response from 1 fM to 10 pM, with a detection limit as low as 0.3 fM and a correlation coefficient (R²) of 0.993. Selectivity tests revealed a 70 % signal drop for fully complementary sequences, while mismatched and non-complementary strands induced significantly smaller current changes (10–45 %). Recovery studies in spiked samples demonstrated accuracy levels between 91.5 % and 97.4 % across concentrations from 10 fM to 20 pM. The assay was completed within 30 minutes and required only 10 µL of sample. Stability assessments showed signal retention of 88 % after four weeks of storage at 4 °C. Unlike fluorescence or colorimetric methods, this sensor eliminates the need for labeling and complex instrumentation, making it especially suitable for resource-limited environments. The synergy of low-cost fabrication, high sensitivity, and portable operation positions this device as a powerful tool for early-stage HPV 18 screening and timely clinical intervention.</div></div>","PeriodicalId":13872,"journal":{"name":"International Journal of Electrochemical Science","volume":"20 8","pages":"Article 101074"},"PeriodicalIF":1.3,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144137629","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":"Effect of hydrophobic surface treatment on corrosion resistance of Fe-Mn-Si memory alloy","authors":"Shuai Suo ,&nbsp;Xinmei Li ,&nbsp;Zhiming Li ,&nbsp;Tianxiang Xue ,&nbsp;Xiangyang Jing ,&nbsp;Fuqiang Guo ,&nbsp;Kai Chong","doi":"10.1016/j.ijoes.2025.101072","DOIUrl":"10.1016/j.ijoes.2025.101072","url":null,"abstract":"<div><div>Fe-Mn-Si shape memory alloys have poor corrosion resistance due to the low content of corrosion-resistant elements and the tendency to form a two-phase structure. This study investigates the corrosion resistance of Fe-15.5Mn-5.2Si-8.5Cr-5Ni shape memory alloy after pre-straining and surface hydrophobic treatments using both acidic and alkaline processes. The results show that after large deformation pre-straining, the formation of the γ/ε two-phase structure significantly reduces the corrosion resistance. The hydrophobic performance of the samples treated with the acidic process is better than that of the alkaline-treated samples, with a substantial decrease in contact angle, which can significantly improve the corrosion resistance of the alloy.</div></div>","PeriodicalId":13872,"journal":{"name":"International Journal of Electrochemical Science","volume":"20 8","pages":"Article 101072"},"PeriodicalIF":1.3,"publicationDate":"2025-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144138337","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}