Advances in Colloid and Interface Science, Год журнала: 2025, Номер 341, С. 103504 - 103504
Опубликована: Апрель 6, 2025
Язык: Английский
Advanced Materials, Год журнала: 2024, Номер 36(38)
Опубликована: Июль 31, 2024
Abstract Aqueous zinc–iodine batteries (AZIBs) are highly appealing for energy requirements owing to their safety, cost‐effectiveness, and scalability. However, the inadequate redox kinetics severe shuttling effect of polyiodide ions impede commercial viability. Herein, several Zn‐MOF‐derived porous carbon materials designed, further preparation iron–doped (Fe–N–C, M9) with varied Fe doping contents is optimized based on a facile self‐assembly/carbonization approach. M9, atomic coordinated nitrogen atoms, employed as an efficient cathode host AZIBs. Functional modifications hosts involving species levels investigated. The adsorption tests, in situ Raman spectroscopy, UV–vis results demonstrate capability charge‐discharge mechanism iodine species. Furthermore, experimental findings theoretical analyses have proven that conversion enhanced through physicochemical confinement effect. This study offers basic principles strategic design single‐atom dispersed high‐performance Flexible soft–pack battery wearable microbattery applications also implications future long‐life aqueous designs.
Язык: Английский
Процитировано
55
Advanced Materials, Год журнала: 2024, Номер 36(30)
Опубликована: Май 8, 2024
Aqueous Zn-iodine (Zn-I
Процитировано
25
Energy storage materials, Год журнала: 2024, Номер 72, С. 103596 - 103596
Опубликована: Июнь 25, 2024
Zinc-based batteries are gaining prominence as promising alternatives to lithium-ion (LIBs) in the pursuit of Net-Zero goals, owing their cost-effectiveness, scalability, and reduced resource dependency. Aqueous rechargeable zinc-iodine (Zn-I2) batteries, particular, emerging an enticing choice for future energy storage systems, thanks eco-friendly nature, impressive theoretical capacity, energy/power density. Nevertheless, several challenges, including well-known polyiodide shuttling phenomenon, suboptimal thermodynamic stability, issues like corrosion dendrite formation on Zn metal anodes, impede practical implementation. Tremendous progress has been achieved circumvent these recent years, though a comprehensive review article both entry-level experienced researchers is still lacking up date. This aims at discussing fundamentals, solutions enable understanding electrochemistry mechanisms, systematically summarizing past, present, technologies strategies involving iodine cathode design modification, interlayer construction/separator electrolytes optimization, anodes protection. Additionally, based achievements, some directions efforts developing high-performance Zn−I2 proposed accelerate commercial applications.
Язык: Английский
Процитировано
12
Advanced Energy Materials, Год журнала: 2024, Номер 14(44)
Опубликована: Авг. 6, 2024
Abstract Aqueous Zn–I 2 batteries have considerable potential owing to their environmental friendliness and high safety. However, the slow iodine conversion kinetics shuttle effect prevent practical applicability. In this study, a series of Zn‐MOF‐74 rods with controllable diameters 40–500 nm are facilely prepared, denoted as P1–P5. A size confinement strategy derived porous carbon hosts is proposed suppress formation undesirable species, such I 3 − 5 . Moreover, graphitization degree samples, including P2‐900, P2‐1000, P2‐1100, play critical on kinetics. The P2‐1000 sample possesses conductive skeleton abundant mesopores, which improve adsorption ability toward species. electrochemical tests in situ technology reveal mechanism iodine. As result, @P2‐1000 cathode exhibits superior discharge capacity 179.9 mA h g −1 at 100 exceptional long‐term cycle after 5000 cycles. Furthermore, soft flexible quasi‐solid‐state capable powering devices, promising exhibit tremendous adaptability realize electronic devices various scenarios.
Язык: Английский
Процитировано
10
Advanced Functional Materials, Год журнала: 2025, Номер unknown
Опубликована: Янв. 20, 2025
Abstract Zinc‐iodine (Zn‐I 2 ) batteries are deemed as promising next‐generation energy storage devices in view of immanent security and high capacity. Nevertheless, their applications deteriorated by unruly dendritic Zn growth, severe polyiodide diffusion, sluggish iodine redox kinetics. Herein, MXene‐mediated Janus separators with heterogeneous double‐sided interfaces designed to simultaneously manipulate deposition accelerate adsorption‐conversion The anode side is composed zincophilic Cu‐modified hollow MXene spheres, which not only decreases nucleation barrier but also suppresses dendrite growth homogenizing electric field distribution inducing oriented aspectant dendrite‐free between the separator anode. While cathode side, consisting iodophilic Co‐modified N‐doped inhibits shuttling promotes electrocatalytic conversion through Co‐N‐C sites. Such an ingenious engineering achieves a durable circulation over 2900 h for Zn||Zn symmetric cells brings about ultrahigh capacity 274 mAh g −1 Zn‐I well ignorable decay (0.001% per circle) after 20 000 cycles. concept design integrating interfacial chemistry regulation physical structure optimization this work provides inspiration constructing advanced exceptional overall performance.
Язык: Английский
Процитировано
1
International Journal of Hydrogen Energy, Год журнала: 2025, Номер 105, С. 583 - 591
Опубликована: Янв. 25, 2025
Язык: Английский
Процитировано
1
Advanced Energy Materials, Год журнала: 2024, Номер unknown
Опубликована: Июль 12, 2024
Abstract Zinc–iodine (Zn–I 2 ) batteries are promising, low‐cost and safe aqueous rechargeable energy storage devices. An iodide shuttle‐induced corrosion poor zinc (Zn) stripping/plating often result in a limited battery lifetime, urges the development of multifunctional Zn anodes. To overcome these problems, here Zn‐anode is demonstrated with shape‐programmability uniform morphology along low‐indexed (002) crystal plane, achieved by electrodepositing on nitinol alloy (nickel–titanium, NiTi). It found that surface oxide layer NiTi supports deposition densely packed planar film formation leads high resistance, while adopts shape‐memory function. NiTi‐based device achieves extremely steady performance, benefiting from during cycling, whereas Zn‐based short‐circuits due to dendritic under severe corrosion. also flat‐shape‐programmed flexible pouch cell Zn–I (SP‐ZIB), which performs well bent mode, recovers its original flat shape at elevated temperature, shows consistent performance for validated cycles. The function makes this advanced flexibility shape‐programmable features. This study represents fresh insight using smart materials as features next‐generation Zn‐I batteries.
Язык: Английский
Процитировано
7
Energy storage materials, Год журнала: 2025, Номер unknown, С. 104113 - 104113
Опубликована: Фев. 1, 2025
Язык: Английский
Процитировано
1
Advanced Functional Materials, Год журнала: 2025, Номер unknown
Опубликована: Март 3, 2025
Abstract Electrocatalytic nitrate reduction to ammonia (NRA) offers an arousing route for converting widespread pollutant under mild conditions. Among other NRA catalysts, single‐atom catalyst (SAC) has emerged as a promising candidate due its numerous advantages such maximum metal‐atom‐utilization efficiency, homogeneous and tailorable active sites, which still encounters formidable challenge accelerate the kinetics simultaneously suppress competitive hydrogen evolution reaction, especially when operated in electrolytes with low concentration nitrate. Herein, general strategy is reported prepare defect‐enriched coordination polymer catalysts featuring well‐defined unsaturated metal can exhibit exceptional performance even at surpass SACs toward catalysis. Taking cobalt (Co) example, Co‐based polymers (d‐CoCP) counterpart CoCP without defects are investigated proof‐of‐concept study. Both experimental theoretical results elucidate that elaborately‐engineered d‐CoCP markedly decrease thermodynamic barrier reducing *NO *HNO rate‐limiting step along pathway, thus accelerating adsorption of promoting kinetics.
Язык: Английский
Процитировано
1
Journal of Alloys and Compounds, Год журнала: 2024, Номер 997, С. 174985 - 174985
Опубликована: Май 26, 2024
Язык: Английский
Процитировано
3