Journal of Electroanalytical Chemistry最新文献

{"title":"Hierarchically porous carbon derived from a sol-shaping strategy enabled by lignin-Fe3+ coordination for supercapacitors","authors":"Xinxin Niu ,&nbsp;Li Bai ,&nbsp;Xiuling Xu ,&nbsp;Yixian Xue ,&nbsp;Zhao Chen ,&nbsp;Fujun Wang","doi":"10.1016/j.jelechem.2026.119874","DOIUrl":"10.1016/j.jelechem.2026.119874","url":null,"abstract":"<div><div>The potential of lignin as a sustainable precursor for carbon electrodes is currently hindered by its low reactivity, poor solubility, and the difficulty in synchronously optimizing pore structure and electrical conductivity. In this study, a Fe³⁺ coordination-assisted solvothermal self-assembly strategy was developed to fabricate hierarchical porous carbon from lignin. Through a comprehensive characterization using XPS, XRD, FTIR, and BET techniques, it was confirmed that Fe³⁺ effectively coordinates with the phenolic hydroxyl/carboxyl groups of lignin, leading to a synergistic effect of “metal-induced graphitization” and “self-templating” during the carbonization process. The resulting carbon material exhibited a high specific capacitance of 204 F g⁻¹ at 1 A/g and low charge transfer resistance. Notably, XPS analysis revealed the formation of Fe<img>O active sites and surface functional groups after acid washing, further enhancing the electrochemical performance of the material. Capacitance contribution analysis elucidated the charge storage mechanism， showing that the capacitive contribution reached 77.8% at 10 mV s⁻¹ and remained at 91.7% even at 100 mV s⁻¹. Kinetic analysis reveals a dominant surface-controlled pseudocapacitive contribution, which underpins the excellent rate capability with 83.45% retention even at 10 A g⁻¹. This work provides a promising approach for the development of high-performance lignin-based carbon materials. The elucidation of the “structure-energy storage mechanism” relationship offers valuable theoretical insights for the rational design of biomass-derived carbon materials with enhanced electrochemical properties.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"1006 ","pages":"Article 119874"},"PeriodicalIF":4.1,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146076386","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}

{"title":"A photoelectrochemical synergistic catalytic three-dimensional electrode system for the treatment of tetracycline pollution in marine wastewater","authors":"Yongmin Fu ,&nbsp;Hao Wang ,&nbsp;Lei Fan ,&nbsp;Yifei Zhou ,&nbsp;Shengli Zhang ,&nbsp;Na Geng ,&nbsp;Dayang Yu","doi":"10.1016/j.jelechem.2026.119858","DOIUrl":"10.1016/j.jelechem.2026.119858","url":null,"abstract":"<div><div>The extensive misuse of tetracycline hydrochloride (TCH) in mariculture necessitates effective treatment methods for high-salinity organic wastewater, for which three-dimensional electrode technology holds great promise. By preparing three-dimensional electrode particles with synergistic photo-electrocatalytic capabilities, organic pollutants can be further degraded using solar energy while electrocatalysis was performed, thereby reducing energy consumption. This study prepared a novel photo-electrocatalytic particle electrode using nitrogen-self-doped tea residue biochar as a carrier, loaded with bismuth vanadate (BiVO₄) as a photoactive component, and modified with ferromagnetic materials. A three-dimensional photo-electrocatalytic system was then constructed. The nitrogen in the material provides active sites during the reaction, while BiVO₄ facilitates photogenerated electron transfer under light irradiation, leading to the oxidative degradation of pollutants adsorbed on the material's surface. Under optimal conditions, the system demonstrated excellent photo-electrocatalytic performance for TCH removal (99.01%), and even after five reuse cycles, the removal rate remained above 95%. The research findings provide valuable technical insights for the effective treatment of refractory organic pollutants in high-salinity wastewater.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"1006 ","pages":"Article 119858"},"PeriodicalIF":4.1,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146185971","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}

{"title":"Hierarchical nanoarchitectonics of porous carbon from rice straw via K2CO3-activation for high-energy symmetric supercapacitors","authors":"Zhe Chen ,&nbsp;Haibo Huang ,&nbsp;Mingxi Li ,&nbsp;Yibo Zhao ,&nbsp;Ming Li ,&nbsp;Ting Zeng","doi":"10.1016/j.jelechem.2026.119887","DOIUrl":"10.1016/j.jelechem.2026.119887","url":null,"abstract":"<div><div>Hierarchically porous carbon is synthesized from rice straw biomass using controlled K₂CO₃ activation for advanced supercapacitor applications. The optimal material, activated rice straw-based biomass carbon (ARBBC)-8, exhibits an expanded interlayer spacing of 3.98 Å, an enhanced defect density (I_d/I_g) of 0.98, and a micro-mesoporous architecture with a 993 m² g⁻¹ specific surface area. X-ray photoelectron spectroscopy (XPS) analysis confirms the presence of electrochemically active N/O functionalities, including pyridinic nitrogen (398.3 eV) and carbonyl groups (532.6 eV), which enable dual energy storage mechanisms. In a three-electrode configuration (6 M KOH), ARBBC-8 delivers a specific capacitance of 392 F g⁻¹ at 2 A g⁻¹ with 50% rate retention at 20 A g⁻¹. The symmetric supercapacitor achieves an energy density of 22.09 Wh kg⁻¹ at 1470 W kg⁻¹, surpassing most aqueous biomass-derived carbon systems. The capacitance retention of 97.6% and Coulombic efficiency of 99.7% after 10,000 cycles demonstrate remarkable cycling stability. This study utilizes synergistic pore-structure engineering and heteroatom functionality optimization to establish rice straw as a sustainable precursor for high-performance energy storage materials.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"1006 ","pages":"Article 119887"},"PeriodicalIF":4.1,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146076380","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}

{"title":"A porphyrazine-based sensor for nitrite detection","authors":"Leonardo M.A. Ribeiro ,&nbsp;Douglas P.M. Saraiva ,&nbsp;Hiago N. Silva ,&nbsp;Marcos M. Toyama ,&nbsp;Sergio H. Toma ,&nbsp;Bruno L. Hennemann ,&nbsp;Koiti Araki ,&nbsp;Henrique E. Toma ,&nbsp;Mauro Bertotti","doi":"10.1016/j.jelechem.2026.119881","DOIUrl":"10.1016/j.jelechem.2026.119881","url":null,"abstract":"<div><div>Nitrite plays a critical role in environmental, food, and biomedical systems; however, its fast and reliable quantification remains challenging due to the limitations of conventional analytical methods. Specifically, traditional methods are often time-consuming, require complex instrumentation, and are unsuitable for field applications. Herein, we report the development of a highly sensitive electrochemical sensor based on a novel supramolecular porphyrazine complex, Tetraruthenated Tetra(pyridyl)Porphyrazine Cobalt (CoTPyPzTRu). This complex was successfully synthesized, characterized by MALDI/TOF/MS, and immobilized onto a platinum microfiber (25 μm diameter) via dip-coating. Morphological analysis by SEM/EDS confirmed the formation of a homogeneous CoTPyPzTRu layer covering the microfiber surface. Electrochemically, the CoTPyPzTRu-modified electrode demonstrated a significantly enhanced electrocatalytic response toward nitrite oxidation, with a steady increase in current compared to the bare electrode. The sensor's practical utility was validated in some matrices, including tap water, algae medium, and artificial saliva, using the standard addition method. The amperometric results showed an excellent correlation (R² = 0.998) with the gold-standard Griess method. Furthermore, recovery tests in spiked samples confirmed the sensor's outstanding accuracy and reliability, showing recovery values as 55 ± 2 μmol L⁻¹ (spiked: 50 μmol L⁻¹) for tap water, 102 ± 7 μmol L⁻¹ (spiked: 100 μmol L⁻¹) for algae medium, and 150 ± 10 μmol L⁻¹ (spiked: 150 μmol L⁻¹) for artificial saliva. This work demonstrated the CoTPyPzTRu-modified microfiber as a robust, sensitive, and practical platform for nitrite quantification, offering a promising alternative for rapid analysis in diverse environmental and biological applications.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"1006 ","pages":"Article 119881"},"PeriodicalIF":4.1,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146076381","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}

{"title":"Weakly solvating electrolyte enables robust LiF-rich interphase to stabilize SnO2-based anode toward Li storage at low temperature","authors":"Yongbo Cui ,&nbsp;Yazhou Zhang ,&nbsp;Yu Qin ,&nbsp;Cheng Wang ,&nbsp;Xuan Liu ,&nbsp;Yingmin Liu ,&nbsp;Wenxia Chen ,&nbsp;Meng Liu ,&nbsp;Fei Li ,&nbsp;Wei Wei","doi":"10.1016/j.jelechem.2026.119877","DOIUrl":"10.1016/j.jelechem.2026.119877","url":null,"abstract":"<div><div>Tin dioxide (SnO₂) is a promising anode material for lithium-ion batteries (LIBs). However, SnO₂ suffers from severe agglomeration and significant volume expansion during cycling. Moreover, the sluggish kinetics at low temperatures further exacerbate the performance fade. Herein, we designed a weakly solvating localized high-concentration salt electrolyte (2 M LiFSI in THF: TTE, denoted as LTT-2). The designed electrolyte exhibited high ionic conductivity and facilitated the formation of a robust LiF-rich solid electrolyte interphase (SEI). This SEI architecture significantly enhanced the structural stability and electrochemical performance of the SnO₂/graphene composite anode (SnO₂/GA). Specifically, in LTT-2 electrolyte, the SnO₂/GA maintained a capacity of 605.7 mAh g⁻¹ after 100 cycles at a current density of 0.5C (1C = 782 mA g⁻¹). At −30 °C, it retained a discharge specific capacity of 411.3 mAh g⁻¹ after 100 cycles (0.1C), with a capacity retention rate as high as 81.1%. This work demonstrates a viable strategy for stabilizing SnO₂-based anodes for Li storage under low temperature conditions.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"1006 ","pages":"Article 119877"},"PeriodicalIF":4.1,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146076379","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}

{"title":"Facile Aptasensor with enhanced electrochemiluminescence by nanozyme in nanoporous silica film for highly sensitive detection of carbohydrate antigen 15–3","authors":"Liuyi Huang,&nbsp;Xinhui Gu,&nbsp;Fengna Xi","doi":"10.1016/j.jelechem.2026.119896","DOIUrl":"10.1016/j.jelechem.2026.119896","url":null,"abstract":"<div><div>Establishing sensitive detection method for carbohydrate antigen 15–3 (CA15–3) is of great significance for the early diagnosis and therapeutic monitoring of breast cancer. Herein, an electrochemiluminescence (ECL) sensor was fabricated by growing Co₃O₄ nanoparticles in-situ within nanochannels and employing a signal gating strategy, achieving highly sensitive detection of CA15–3. Using simple Stöber method, a silica nanochannel film (SNF) was deposited onto an indium tin oxide (ITO) glass electrode. This two-dimensional (2D) nanoporous silica film provided a confined space, within which Co₃O₄ nanozymes were synthesized in situ. Co₃O₄ served as a peroxidase (POD)-mimic nanozyme, enabling the catalytic conversion of hydrogen peroxide (H₂O₂) into reactive oxygen species (ROS). Functioning as a nanocatalyst, Co₃O₄ remarkedly enhanced the electrochemical oxidation of luminol, thereby boosting the ECL signal. This dual enhancement mechanism enabled the sensor to achieve high luminol-based ECL signal. The bio-recognition interface was constructed by functionalizing the outer surface of SNF with silane coupling agents and immobilizing aptamers. A measurable decrease in the ECL signal was generated due to the hindered diffusion of the emitter and co-reactant and increased interfacial resistance, which occurred when the aptamer-CA15–3 complex formed on the electrode surface. This response allowed for the quantification of CA15–3. Under optimal conditions, the developed aptasensor can detect CA15–3 in the range of 0.1 to 10,000 mU/mL, with a limit of detection of 26 μU/mL. Owing to its merits of simple fabrication, rapid analysis, high sensitivity, good reproducibility, and excellent selectivity, the developed immunosensor holds great potential for clinical diagnostics of tumor biomarkers.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"1006 ","pages":"Article 119896"},"PeriodicalIF":4.1,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146185384","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}

{"title":"2T-Si/Sb2S3 tandem solar cell: Impedance spectroscopic and electrical circuit analysis","authors":"Atish Kumar Sharma ,&nbsp;Ritesh Kumar Chourasia ,&nbsp;Nitesh K. Chourasia ,&nbsp;Keyur Sangani","doi":"10.1016/j.jelechem.2026.119895","DOIUrl":"10.1016/j.jelechem.2026.119895","url":null,"abstract":"<div><div>In the advancement toward sustainable energy solutions, solar power plays a pivotal role among renewable energy technologies. However, conventional single-junction solar cells are constrained by their intrinsic narrow bandgap, resulting in substantial energy losses specifically, thermalization losses from high-energy photons and transmission losses from low-energy photons. To address these limitations, tandem solar cells offer a promising alternative by enabling the absorption of a wider portion of the solar spectrum, thereby significantly mitigating both thermal and absorption-related losses. This study presents a comprehensive analysis of a two-terminal (2 T) tandem solar cell architecture utilizing impedance spectroscopy and equivalent circuit modelling. Using SCAPS-1d, the standalone top cell (Sb₂S₃) and bottom cell (Si) cells are demonstrated. The EIS analyser is used for fitting the equivalent circuit corresponding to the frequency-dependent impedance data for the top and bottom cells. The characterization of top and bottom cells is done exclusively based on the capacitance-frequency (C<img>F), capacitance-voltage (C<img>V), Mott-Schottky (M-S), and Nyquist plots. The impedance spectroscopy data of both cells confirms their suitability as top and bottom cells for the 2 T tandem design.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"1006 ","pages":"Article 119895"},"PeriodicalIF":4.1,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146185381","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}

{"title":"Hierarchical porous carbon aerogel with enhanced Pseudocapacitance for high-performance zinc-ion hybrid capacitors","authors":"Youyu Zhu ,&nbsp;Zonglin You ,&nbsp;Xiaofang Tang ,&nbsp;Yixi Zhang ,&nbsp;Zheng Liu ,&nbsp;Mingyu Wei ,&nbsp;Yuanyuan Ma ,&nbsp;Qi Liu ,&nbsp;Yingfeng Duan ,&nbsp;Jin Wang ,&nbsp;Xue Wang ,&nbsp;Yating Zhang","doi":"10.1016/j.jelechem.2026.119906","DOIUrl":"10.1016/j.jelechem.2026.119906","url":null,"abstract":"<div><div>Zinc-ion hybrid capacitors (ZIHCs) have been considered as one of promising energy storage devices balancing the energy and power output. Constructing high-capacity cathode materials to match the Zn anode is crucial to improve the overall performance of ZIHCs. Herein, using coal-based humic acid as carbon precursor and carboxymethyl cellulose (CMC) as structure-directing reagent, an oxygen self-doped porous carbon aerogels (CAs) was fabricated via hydrogen bond-driven strategy. The resulting carbon aerogel with three-dimensional network structure constructed by carbon nanosheet can not only maximize the utilization of active sites, but also facilitate the ion storage and transport. Furthermore, the C<img>O groups on the carbon aerogel surface further enhance the capacitance via pseudocapacitive reaction. Consequently, the assembled ZIHCs based on the carbon aerogel achieves an exhibits outstanding rate capability, delivering a reversible capacity of 131.8 mAh g⁻¹ at a high current density of 10 A g⁻¹ and ultra-high energy density of 211.5 Wh kg⁻¹ (at 74.45 W kg⁻¹). Systematic investigations reveal that the excellent electrochemical performance originates from the physical adsorption and the chemical adsorption of zinc ions. This study provides a novel approach for the fabrication of carbon-based cathodes in ZIHCs.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"1006 ","pages":"Article 119906"},"PeriodicalIF":4.1,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146185973","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}

{"title":"High-performance anode material carbon-coated WS2 for lithium and sodium ion battery","authors":"Miao Jiang ,&nbsp;Yi-Han Gui ,&nbsp;Ying-Jin Zhao ,&nbsp;Luan Fang ,&nbsp;Song-Lin Tian ,&nbsp;San-Long Wang ,&nbsp;Ji Li ,&nbsp;Li-Min Chang","doi":"10.1016/j.jelechem.2026.119891","DOIUrl":"10.1016/j.jelechem.2026.119891","url":null,"abstract":"<div><div>With the rapid advancement of society and economic development, the demand for advanced energy storage solutions has increased significantly. Secondary batteries have emerged as a focal point in renewable energy research due to their environmental sustainability and portability. In particular, lithium-ion batteries (LIBs) and sodium-ion batteries (SIBs) have been widely adopted owing to their high energy density. This study successfully synthesized tungsten disulfide (WS₂) nanosheets using a two-step solid-phase method and prepared a series of carbon-coated WS₂ composites (C-WS₂-n) through dopamine modification and high-temperature carbonization. The carbon coating method effectively enhances the cycling stability of WS₂. Electrochemical tests demonstrated that the C-WS₂-n composites, used as anode materials for lithium/sodium-ion batteries, significantly improved conductivity and structural stability, effectively mitigating volume changes during charge and discharge cycles. Among them, the C-WS₂-0.5 material still maintains a discharge specific capacity of 338.9 mAh g⁻¹ after 500 cycles in LIBs and 68.8 mAh g⁻¹ after 500 cycles in SIBs, it exhibited the most outstanding rate performance and cycling stability in both LIBs and SIBs and shown particularly high practical potential in LIBs. This research provides an effective modification strategy for the application of transition metal sulfides in secondary batteries.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"1006 ","pages":"Article 119891"},"PeriodicalIF":4.1,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146076388","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}

{"title":"Cobalt-based metal-organic framework derived 3D interconnected NiCo2S4 nanoparticles network architectures for high-performance supercapacitors","authors":"Naifeng Zhang ,&nbsp;Yanli Chen ,&nbsp;Yanrong Zhang ,&nbsp;Xinyu Lv ,&nbsp;Dan Wang ,&nbsp;Wenchang Wang ,&nbsp;Jie Wang ,&nbsp;Xiaojiao Du ,&nbsp;Naotoshi Mitsuzaki ,&nbsp;Zhidong Chen","doi":"10.1016/j.jelechem.2026.119843","DOIUrl":"10.1016/j.jelechem.2026.119843","url":null,"abstract":"<div><div>The practical deployment of transition metal sulfides in supercapacitors is constrained by intrinsic limitations including nanoparticle agglomeration, low active-site utilization, and inadequate rate performance. To circumvent the intrinsic constraints of transition metal sulfide electrodes, employing metal-organic framework (MOF) as a sacrificial template to construct well-defined nanostructures represents a highly effective strategy. In this contribution, we successfully construct three-dimensional (3D) interconnected NiCo₂S₄ nanoparticles network with abundant active sites by simple co-precipitation, ion exchange and subsequent sulfidation processes. The influence of sulfurization temperature and sulfurization duration on the electrochemical performance was systematically investigated. The rational design prevents the aggregation of NiCo₂S₄ nanoparticles, enables the resulting 3D interconnected network structure has high specific surface area and a larger number of active sites and excellent structural stability to enhance the electrochemical performance. The as-fabricated NiCo₂S₄/NF-120(6) electrode exhibits an outstanding specific capacitance of 1232C g⁻¹ at 1 A g⁻¹, along with a satisfactory capacitance retention of 72.94% when tested at 5 A g⁻¹ after 5000 cycles. Furthermore, the asymmetric supercapacitor (ASC) device achieves a high energy density of 28.58 Wh kg⁻¹ at a power density of 800 W kg⁻¹, accompanied by a maximum power density of 8000 W kg⁻¹. Notably, the ASC device also demonstrates a favorable capacity retention of 94.45% after 10,000 cycles. These results collectively confirm the practical application potential of the 3D interconnected nanoparticle network in advanced energy storage systems.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"1006 ","pages":"Article 119843"},"PeriodicalIF":4.1,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146076382","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}