Ionics最新文献 - Book学术

A review on the functionalized modification of glass fiber separators for aqueous zinc-ion batteries 水性锌离子电池用玻璃纤维隔膜的功能化改性研究进展

IF 2.6 4区化学

Ionics Pub Date : 2026-03-24 DOI: 10.1007/s11581-026-07070-5

Zhongqiu Chu, Fengxian Wan, Shupeng Li, Jialiang Wang, Shikun Ma

{"title":"A review on the functionalized modification of glass fiber separators for aqueous zinc-ion batteries","authors":"Zhongqiu Chu, Fengxian Wan, Shupeng Li, Jialiang Wang, Shikun Ma","doi":"10.1007/s11581-026-07070-5","DOIUrl":"10.1007/s11581-026-07070-5","url":null,"abstract":"<div>\u0000 \u0000 Aqueous zinc-ion batteries (AZIBs) have attracted considerable interest as a promising energy storage technology, owing to their intrinsic safety, high theoretical capacity, and environmental benignity. Nevertheless, their practical deployment is impeded by issues including uncontrolled dendrite growth, hydrogen evolution reactions, and anode corrosion. Regulating the zinc-electrolyte interface has thus become a central research focus. Since interfacial modification often occurs at or near the separator, the separator’s properties strongly influence overall battery performance. Although glass fiber (GF) separators are commonly employed in AZIBs due to their porous structure and good wettability, their insufficient mechanical strength increases the risk of dendrite penetration and internal short circuits. Consequently, modifying GF separators has emerged as an effective strategy for enhancing AZIB performance. This review begins by summarizing the essential requirements for separators in AZIBs, followed by a systematic overview of recent advances in GF modification using carbon-based materials, inorganic compounds, polymers, and metal-organic frameworks (MOFs). To bridge the gap toward practical application, we further examine the synergistic coupling between separators and electrolytes, incorporating discussions on cathode stability and full-cell metrics. Finally, we discuss remaining challenges and promising future directions aimed at guiding the rational design of advanced separators for high-performance AZIBs.\u0000 </div>","PeriodicalId":599,"journal":{"name":"Ionics","volume":"32 4","pages":"3923 - 3947"},"PeriodicalIF":2.6,"publicationDate":"2026-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147733204","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

Synergistic Ti4+/F− co-doping in spinel LiNi0.5Mn1.5O4 cathode: enhancing high-voltage performance via dual ion-modulated effects and first-principles investigations 尖晶石LiNi0.5Mn1.5O4阴极中协同Ti4+/F−共掺杂：通过双离子调制效应和第一性原理研究提高高压性能

IF 2.6 4区化学

Ionics Pub Date : 2026-03-21 DOI: 10.1007/s11581-026-07077-y

Cheng Qian, Jinjiang Zhao, Gongqin Yan, Xiangyang Xu, Chunbo Lan, Xianghui Fu

{"title":"Synergistic Ti4+/F− co-doping in spinel LiNi0.5Mn1.5O4 cathode: enhancing high-voltage performance via dual ion-modulated effects and first-principles investigations","authors":"Cheng Qian, Jinjiang Zhao, Gongqin Yan, Xiangyang Xu, Chunbo Lan, Xianghui Fu","doi":"10.1007/s11581-026-07077-y","DOIUrl":"10.1007/s11581-026-07077-y","url":null,"abstract":"<div>\u0000 \u0000 To address the intrinsic limitations of pristine LiNi0.5Mn1.5O4 (LNMO), this study explores Ti4+/F−co-doping via a one-step solid-state synthesis as a strategy to enhance its electrochemical performance. Structural and morphological analyses, reveal that co-doping effectively enlarges lattice parameters while reduces particle size. Electrochemically, the co-doped LNMO delivers an initial discharge capacity of 140.4 mAh g− 1 at 0.2 C at room temperature, with 90.9% capacity retention after 100 cycles, which is markedly higher than the pristine LNMO (82%). Cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) indicate suppressed polarization and accelerated Li+ diffusion. Furthermore, density functional theory calculations indicate that narrows the indirect band gap and lowers Li+ diffusion barriers, thereby improving both electronic conductivity and ionic transport. These theoretical findings, coupled with systematic experimental characterizations and electrochemical performance, collectively substantiate that Ti4+/F− cation-anion co-doping—by virtue of its unique complementary synergistic effects—is a robust, viable, and superior strategy compared to single-doping approaches for addressing the intrinsic limitations of LNMO.\u0000 </div>","PeriodicalId":599,"journal":{"name":"Ionics","volume":"32 4","pages":"4047 - 4062"},"PeriodicalIF":2.6,"publicationDate":"2026-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147733178","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

Trace Yb-doped P2-type Na0.67Ni0.33Mn0.67O2 as a zero-strain cathode material for sodium-ion storage 微量镱掺杂p2型Na0.67Ni0.33Mn0.67O2作为钠离子存储的零应变正极材料

IF 2.6 4区化学

Ionics Pub Date : 2026-03-18 DOI: 10.1007/s11581-026-07072-3

Qiong Liu, Peng-Hui Dong, Lu Wang, Jing-Ying Chen, Shang-Xue Jia, Hai-Ting Lv, Kangzhe Cao, Yang Fan

{"title":"Trace Yb-doped P2-type Na0.67Ni0.33Mn0.67O2 as a zero-strain cathode material for sodium-ion storage","authors":"Qiong Liu, Peng-Hui Dong, Lu Wang, Jing-Ying Chen, Shang-Xue Jia, Hai-Ting Lv, Kangzhe Cao, Yang Fan","doi":"10.1007/s11581-026-07072-3","DOIUrl":"10.1007/s11581-026-07072-3","url":null,"abstract":"<div>\u0000 \u0000 P2-type Na0.67Mn0.67Ni0.33O2 (NNMO) is a promising candidate cathode material for sodium-ion batteries (SIBs). However, the P2‒O2 phase transition occurring upon high voltage operation will lead to large lattice distortion and huge volume variation, which result in poor rate capability and cycling stability. Herein, the Yb-doped materials including Na0.67Ni0.33Mn0.65Yb0.03O2 (NNMO-Yb0.03) and Na0.67Ni0.33Mn0.63Yb0.05O2 (NNMO-Yb0.05) have been synthesized. The doping Yb3+ ions could suppress the P2‒O2 phase transition at high voltages and improve the structural stability during electrochemical cycling. Notably, the NNMO-Yb0.03 cathode demonstrates zero-strain feature with minimal volume change (∆V = 0.78%) during the charge/discharge cycle. Compared to NNMO, the Yb-doped cathodes show much enhanced rate performance and cycling stability. In particular, the NNMO-Yb0.03 cathode exhibits a higher reversible capacity of 129 mAh g–1, superior rate capability of 70 mAh g–1 at 20 C, and 82.3% capacity retention after 500 cycles at 3 C. The results offer valuable insights into the layered oxide cathode materials with zero-strain behavior for Na-ion storage.\u0000 </div>","PeriodicalId":599,"journal":{"name":"Ionics","volume":"32 4","pages":"4305 - 4315"},"PeriodicalIF":2.6,"publicationDate":"2026-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147733081","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

Microstructure regulation and electrochemical performance of spinel Ni/Co/Fe-Oxide as anode material for lithium-ion batteries 尖晶石Ni/Co/ fe -氧化物作为锂离子电池负极材料的微观结构调控及电化学性能

IF 2.6 4区化学

Ionics Pub Date : 2026-03-18 DOI: 10.1007/s11581-026-07037-6

Wei Yu, Tingting Huo

{"title":"Microstructure regulation and electrochemical performance of spinel Ni/Co/Fe-Oxide as anode material for lithium-ion batteries","authors":"Wei Yu, Tingting Huo","doi":"10.1007/s11581-026-07037-6","DOIUrl":"10.1007/s11581-026-07037-6","url":null,"abstract":"<div>\u0000 \u0000 The development of high-capacity and long-cycle-life anode materials is crucial for advancing lithium-ion battery technology. Prussian blue analogs (PBAs) and their derived mixed metal oxides (MMOs) have shown great potential due to their structural tunability and high theoretical capacity. In this work, Ni/Co/Fe-PBA precursors were synthesized via a facile co-precipitation method and subsequently calcined to form ternary metal oxide nanocubes (Ni/Co/Fe-Oxide). A binary counterpart (Co/Fe-Oxide) was also prepared under identical conditions for comparison. The ternary material exhibits a unique hollow nanocube architecture with hierarchical porosity, whereas the binary oxide displays solid nanocube aggregates. Electrochemical tests reveal that the ternary anode delivers a high initial discharge capacity of 526 mAh g⁻¹ and maintains 275 mAh g⁻¹ after 50 cycles at 0.1 A g⁻¹, significantly outperforming the binary anode (381 mAh g⁻¹ initially, 173 mAh g⁻¹ after 50 cycles). The ternary material also demonstrates superior rate capability and cycling stability, attributed to its hollow structure that effectively accommodates volume expansion, shortens Li⁺ diffusion paths, and provides abundant active sites. This study highlights the importance of ternary composition and morphology control in designing high-performance PBA-derived anodes for next-generation lithium-ion batteries.\u0000 </div>","PeriodicalId":599,"journal":{"name":"Ionics","volume":"32 4","pages":"3949 - 3959"},"PeriodicalIF":2.6,"publicationDate":"2026-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147733036","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

CO₂-etched porous graphene as an efficient conductive additive for LiNi₀.₈Co₀.₁Mn₀.₁O₂ batteries CO₂蚀刻多孔石墨烯作为LiNi 0的高效导电添加剂。₈CO 0 .₁Mn 0。₁O₂电池

IF 2.6 4区化学

Ionics Pub Date : 2026-03-18 DOI: 10.1007/s11581-026-07042-9

Guodong Dai, Shengwen Zhong, Qichuang Hu, Hanjin Wang

{"title":"CO₂-etched porous graphene as an efficient conductive additive for LiNi₀.₈Co₀.₁Mn₀.₁O₂ batteries","authors":"Guodong Dai, Shengwen Zhong, Qichuang Hu, Hanjin Wang","doi":"10.1007/s11581-026-07042-9","DOIUrl":"10.1007/s11581-026-07042-9","url":null,"abstract":"<div>\u0000 \u0000 Graphene (GN) is widely employed as a conductive additive in lithium-ion battery cathode materials due to its exceptional electrical conductivity. however, its layers are highly prone to agglomeration. This tendency to aggregate results in the formation of a dense conductive network, impeding lithium-ion migration and compromising the rate performance of the battery.This study reports a method for preparing porous graphene using CO₂ as a pore-forming agent and tests its electrochemical performance as a cathode conductive additive. Porous graphene obtained by etching GN at 1000 °C under a CO₂ atmosphere incorporates pores with diameters of 2–5 nm within its layers. These pores provide a rapid migration pathway for lithium ions, enhancing their diffusion rate and thereby improving the rate performance of the battery. Electrochemical tests demonstrate that the lithium ion diffusion coefficient of the LiNi₀.₈Co₀.₁Mn₀.₁O₂ (NCM811) cathode battery incorporating this porous graphene reaches 4.7 × 10⁻¹² cm² s⁻¹, representing a 5.6-fold improvement over the 8.3 × 10⁻¹³ cm² s⁻¹ value observed with conventional GN-added samples. At 5 C, the specific capacity reached 150 mAh g⁻¹, representing a 36% increase over the 110 mAh g⁻¹ achieved with conventional GN-added cathodes. To further enhance the rate performance of NCM811 batteries, a binary conductive additive comprising 5 wt% porous graphene and 5 wt% Super-P (SP) was employed, achieving a discharge specific capacity of up to 170 mAh g⁻¹ at 5 C. This study presents a straightforward method for synthesizing porous graphene and offers practical guidance for enhancing the rate performance of NCM811 batteries.\u0000 </div>","PeriodicalId":599,"journal":{"name":"Ionics","volume":"32 4","pages":"4117 - 4127"},"PeriodicalIF":2.6,"publicationDate":"2026-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11581-026-07042-9.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147733201","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

Transfer learning for battery health estimation: a comprehensive meta-analysis of models, strategies, and domain transfer scenarios 电池健康估计的迁移学习：模型，策略和领域迁移场景的综合元分析

IF 2.6 4区化学

Ionics Pub Date : 2026-03-17 DOI: 10.1007/s11581-026-07030-z

Ebubekir Buğra Özarslan, Senem Kursun

{"title":"Transfer learning for battery health estimation: a comprehensive meta-analysis of models, strategies, and domain transfer scenarios","authors":"Ebubekir Buğra Özarslan, Senem Kursun","doi":"10.1007/s11581-026-07030-z","DOIUrl":"10.1007/s11581-026-07030-z","url":null,"abstract":"<div>\u0000 \u0000 Accurate estimation of battery state of health (SOH), capacity, and remaining useful life (RUL) is a cornerstone of reliable battery management systems, yet data scarcity, long aging durations, and strong domain shifts severely limit the generalization capability of conventional data-driven models. Transfer learning (TL) has therefore emerged as a key enabler for scalable battery diagnostics. This paper presents a comprehensive and systematic meta-analysis of 154 peer-reviewed studies on TL-based battery health estimation published between 2019 and 2025, constituting the most extensive synthesis reported to date. The reviewed literature is structured along five orthogonal dimensions: data modalities, model families, transfer learning strategies, domain transfer scenarios, and target variables. Quantitative analyses reveal that recurrent and convolutional architectures dominate early research, while attention-based Transformers and physics-informed hybrids have rapidly gained prominence in recent years. Fine-tuning remains the most widely adopted TL strategy, although explicit domain adaptation and representation-level transfer consistently demonstrate superior robustness under severe domain shifts. Despite notable progress, critical gaps persist, particularly in cross-chemistry, cross-laboratory, and real-world deployment scenarios, as well as in the limited use of physics-aware constraints and meta-learning frameworks. By consolidating fragmented findings into a unified taxonomy and identifying unresolved challenges, this review provides a structured foundation for future research and offers a clear roadmap toward robust, generalizable, and deployable transfer learning-enabled battery diagnostic systems.\u0000 </div>","PeriodicalId":599,"journal":{"name":"Ionics","volume":"32 4","pages":"3865 - 3921"},"PeriodicalIF":2.6,"publicationDate":"2026-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147733171","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

Cation-anion synergistic stabilization at the heterointerface for ultra-stable 4.6 V LiCoO2 cathodes 超稳定4.6 V LiCoO2阴极异质界面的正负离子协同稳定

IF 2.6 4区化学

Ionics Pub Date : 2026-03-17 DOI: 10.1007/s11581-026-06994-2

Keying Wu, Haiwen Tang, Yao Liu, Dan Wang, Jinjin Jiang, Liusi Yu, Sujun Wang, Lei Chen, Kai Tang

{"title":"Cation-anion synergistic stabilization at the heterointerface for ultra-stable 4.6 V LiCoO2 cathodes","authors":"Keying Wu, Haiwen Tang, Yao Liu, Dan Wang, Jinjin Jiang, Liusi Yu, Sujun Wang, Lei Chen, Kai Tang","doi":"10.1007/s11581-026-06994-2","DOIUrl":"10.1007/s11581-026-06994-2","url":null,"abstract":"<div>\u0000 \u0000 LiCoO₂ (LCO) cathodes suffer from severe interfacial degradation, including cobalt dissolution, oxygen loss, and structural collapse, when cycled at high voltages (> 4.6 V), which limits their practical application. To address this issue, we propose a heterojunction engineering strategy via surface coating with lithium zirconium phosphate (Li₂Zr(PO₄)₂, LZP). The optimized LCO@LZP cathode delivers an ultrahigh initial discharge capacity of 178.1 mAh·g− 1 at 1 C (3.0–4.6 V) and retains 86.3% of its capacity after 200 cycles, significantly outperforming bare LCO (76.0%). It also exhibits enhanced rate capability (108.7 mAh·g− 1 at 10 C) and near-complete capacity recovery (99.7%) upon returning to 0.1 C. Mechanistic studies reveal that the LZP coating stabilizes lattice oxygen through robust Zr–O and P–O bonds, suppresses electrolyte decomposition to form a thin and inorganic-rich cathode electrolyte interphase (CEI), and enhances Li+ diffusion kinetics (DLi+ = 8.51 × 10− 12 cm2·s− 1, 2.4 times higher than bare LCO). DFT calculations further confirm that the LCO/LZP heterojunction reduces oxygen charge compensation and creates an internal electric field that facilitates ion transport while inhibiting electron leakage. This work provides a scalable surface-modification strategy for developing high-energy-density LCO cathodes for next-generation lithium-ion batteries.\u0000 </div>","PeriodicalId":599,"journal":{"name":"Ionics","volume":"32 4","pages":"4021 - 4033"},"PeriodicalIF":2.6,"publicationDate":"2026-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147733205","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

Improved dung beetle-temporal convolutional network-bidirectional gated recurrent unit for high-precision state of charge estimation of lithium-ion batteries 改进的屎壳虫-时间卷积网络双向门控循环单元用于锂离子电池的高精度充电状态估计

IF 2.6 4区化学

Ionics Pub Date : 2026-03-16 DOI: 10.1007/s11581-026-07049-2

Xinyu Yan, Tao Xu, Shunli Wang, Liangwei Cheng, Carlos Fernandez, Frede Blaabjerg

{"title":"Improved dung beetle-temporal convolutional network-bidirectional gated recurrent unit for high-precision state of charge estimation of lithium-ion batteries","authors":"Xinyu Yan, Tao Xu, Shunli Wang, Liangwei Cheng, Carlos Fernandez, Frede Blaabjerg","doi":"10.1007/s11581-026-07049-2","DOIUrl":"10.1007/s11581-026-07049-2","url":null,"abstract":"<div>\u0000 \u0000 Accurate State of Charge (SOC) estimation under multi-temperature and highly dynamic operating conditions remains a critical challenge for lithium-ion battery management. This paper presents an Improved Dung Beetle Optimization algorithm-Temporal Convolutional Network-Bidirectional Gated Recurrent Unit (DB-TCN-BiGRU) framework for high-precision SOC estimation of lithium-ion batteries. The TCN captures electrochemical dynamics across fast polarization and slow diffusion time scales, while the BiGRU models hysteresis-related bidirectional dependencies in voltage-current responses. The multi-strategy Dung Beetle Optimization algorithm (DBO) adaptively selects network hyperparameters to ensure stable convergence under heterogeneous temperature conditions, and the Kalman layer suppresses noise-induced fluctuations to maintain physically consistent SOC trajectories. Experiments on a 143 Ah lithium-ion cell across three temperatures and three dynamic profiles demonstrate that the proposed framework achieves MAE between 0.31% and 0.77%, RMSE < 1.0%, and R² > 0.999, significantly outperforming conventional TCN-BiGRU and BiGRU baselines. These results confirm the framework’s high robustness, strong generalization capability, and suitability for real-time battery management systems.\u0000 </div>","PeriodicalId":599,"journal":{"name":"Ionics","volume":"32 4","pages":"4285 - 4303"},"PeriodicalIF":2.6,"publicationDate":"2026-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147733078","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

Boosting the electrocatalytic activity towards OER via a composite comprising of NiS@SnAl2O4 通过含有NiS@SnAl2O4的复合材料提高OER的电催化活性

IF 2.6 4区化学

Ionics Pub Date : 2026-03-16 DOI: 10.1007/s11581-026-06998-y

Munaza Sadiq, Haifa A. Alyousef, Albandari . W. Alrowaily, B. M. Alotaibi, Hala M. Abo-Dief, Rizwan Ul Hassan, Hussain Sawwan, Abhinav Kumar

{"title":"Boosting the electrocatalytic activity towards OER via a composite comprising of NiS@SnAl2O4","authors":"Munaza Sadiq, Haifa A. Alyousef, Albandari . W. Alrowaily, B. M. Alotaibi, Hala M. Abo-Dief, Rizwan Ul Hassan, Hussain Sawwan, Abhinav Kumar","doi":"10.1007/s11581-026-06998-y","DOIUrl":"10.1007/s11581-026-06998-y","url":null,"abstract":"<div>\u0000 \u0000 This research attempts to design a stable, proficient and innovative electrocatalytic material for the oxygen evolution reaction (OER), this advancement shows a promising potential for green energy, as it could lead to more effective, durable and economical solutions in the energy sector. In this work, NiS@SnAl2O4 composite is synthesized using a hydrothermal technique and then coated on a nickel foam to boost the OER catalysis. The NiS@SnAl2O4 nanocomposite exhibits remarkable OER performance, exhibiting a small overpotential of 228 mV with a lower Tafel slope (36 mV/dec) at 10 mA/cm2, in contrast to pristine NiS and SnAl2O4. The composite maintains exceptional stability over 50 h in the chronoamperometric test. This study demonstrates that the NiS/SnAl₂O₄ composite achieves enhanced OER activity, as confirmed by its lower overpotential, smaller Tafel slope, higher current density and reduced charge-transfer resistance, confirming the electrochemical enhancement achieved by combining both components. The introduced modified framework of SnAl2O4 imparts exceptional electrical characteristics and strength to NiS. As a result, this study gives a broader prospective on the combined catalytic interaction of distinct nanomaterials in composite catalysts. It presents innovative ideas for future study and production of nanocatalysts in durable energy conversion methods.\u0000 </div>","PeriodicalId":599,"journal":{"name":"Ionics","volume":"32 4","pages":"4407 - 4420"},"PeriodicalIF":2.6,"publicationDate":"2026-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147733187","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

Synthesis and characterization of BiFeO3/g-C3N5 composite with enhanced visible-light photocatalytic activity and electrochemical performance 具有增强可见光催化活性和电化学性能的BiFeO3/g-C3N5复合材料的合成与表征

IF 2.6 4区化学

Ionics Pub Date : 2026-03-16 DOI: 10.1007/s11581-026-07050-9

B. N. Roopashree, K. Gurushantha, L. Renuka, Nagaraju Kottam, P. C. Ashly, B. S. Surendra

{"title":"Synthesis and characterization of BiFeO3/g-C3N5 composite with enhanced visible-light photocatalytic activity and electrochemical performance","authors":"B. N. Roopashree, K. Gurushantha, L. Renuka, Nagaraju Kottam, P. C. Ashly, B. S. Surendra","doi":"10.1007/s11581-026-07050-9","DOIUrl":"10.1007/s11581-026-07050-9","url":null,"abstract":"<div>This study examines the photocatalytic capabilities of BiFeO3, g-C3N5 nanoparticles, and BiFeO3/g-C3N5 nanocomposite in the degradation of azorubine dye and its use in sensors. The structural, morphological, optical, sensing, impedance, photoluminescence, and photocatalytic properties of the produced perovskite and nanocomposite were examined. Developed BiFeO3/g-C3N5 nanocomposite has a nano staked structure with optimum band gap of 1.67 eV that makes it active in visible region by delaying recombination rate compared to g-C3N5 (1.54 eV) and pure BiFeO3 (1.97 eV). Compared to pure BiFeO3, the BiFeO3/g-C3N5 nanocomposite has demonstrated greater photocatalytic activity (96.46%) and stability under visible light irradiation. The possible mechanism behind the superior photocatalytic performance of nanocomposite has been critically discussed. The scavenging experiment indicated the major role played by h+ to improve photocatalytic activity of synthesized nanocomposite. In essence, this paper pioneers a novel concept for of heterojunction s-scheme photocatalyst with recyclability and photostability that can also sense the lead (Pb2+) and the cadmium (Cd2+). These structural and electronic features correlate with the observed sensing performance, demonstrating that thermal modulation of g-C3N5 enables control over porosity, molecular ordering, and charge transport for effective Pb2+ and Cd2+ detection.<h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture>The alternative text for this image may have been generated using AI.</div></div></figure></div></div>","PeriodicalId":599,"journal":{"name":"Ionics","volume":"32 4","pages":"4501 - 4528"},"PeriodicalIF":2.6,"publicationDate":"2026-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147733116","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