ACS Sustainable Chemistry & Engineering
·
2024
·
IF 7.1
Xiaojing Wu,Rui Zhang,Hanbing Wang,Xujing Sun,Ning Luo,Dongjiang You,Lingyu Du,Yunming Li,Litao Kang
Despite showing low cost, inherent safety, and high suitability, the rechargeable Zn–I2 aqueous batteries are still seriously suffering from self-discharge and energy density issues stemming from I2 dissolution, polyiodide shuttling, and low I2 mass loading. Herein, we develop a novel polyquaternium-10 (P10, a cationic cellulose)-based binding system to simultaneously circumvent these issues. The water-borne P10 binder can suppress I2 dissolution and polyiodide shuttling by not only adsorbing polyiodides via its quaternary ammonium groups and oxygen heteroatoms but also eliminating the use of toxic, expensive, and I2-dissolving organic solvents (e.g., N-methylpyrrolidone, NMP), enabling a facile and green cathode-fabricating process. More importantly, the P10 binder is conducive to the preparation of thick cathode coatings with high I2 mass loadings, thanks to its high elasticity and mechanical toughness after swelling by the electrolyte. As a result, Zn–I2 batteries prepared with the P10 binder demonstrate much better anti-self-discharge performance than those prepared with conventional PVDF binders (capacity retention: 84 vs 63% after 200 h of open-circuit storage). Even at an ultrahigh I2 mass loading of 14.5 mg cm–2, the batteries can still deliver significant specific capacity (216 mAh g–1) and cyclability (96.8% capacity remained after 385 cycles). This binder should be highly compatible with other performance-improving strategies, providing a green yet affordable approach for the construction of high-performance Zn–I2 aqueous batteries.
研究领域:
电化学
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材料科学
·
能源存储
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产品关联
DOI
高影响因子
INORGANIC CHEMISTRY
·
2014
·
IF 4.794
Jun He,Jingjing Duan,Huatian Shi,Jian Huang,Jiahong Huang,Lin Yu,Matthias Zeller,Allen D. Hunter,Zhengtao Xu
The major discovery here is a robust and water-stable metal–organic framework (MOF) material capable of reversible binding of the volatile and reactive molecules of ICl and I2. The immobilization of I2 and ICl, as well as their controllable release thus achieved, is to facilitate the wide-ranging applications of these volatile species as catalysts and reagents in chemical and industrial processes. The framework material TMBP·CuI (hereafter TCuI) can be conveniently prepared in quantitative yields by heating CuI and the organic linker TMBP (3,3′,5,5′-tetramethyl-4,4′-bipyrazol) in acetonitrile. The microporous three-dimensional net of TCuI features CuI chains that contribute to efficient and reversible binding of ICl and I2 molecules, to result in the stoichiometrically well-defined adducts of TCuI·ICl and TCuI·I2, respectively. Moreover, the confinement of a volatile compound like ICl within the MOF medium provides unique opportunities to enhance its reactivity and selectivity as a chemical reagent, as is exemplified by the iodination reactions examined herein. With this exemplary study, we intend to stimulate interest in further exploring MOFs and other porous media (e.g., porous polymers) for entrapping ICl and other volatile reagents (e.g., Br2, SCl2, S2Cl2, and SOCl2) and for potentially novel reactivity associated with the porous medium.
研究领域:
材料科学
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化学工程
·
催化化学
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DOI
高影响因子
Materials Today Communications
·
2025
·
IF 4.5
Wanxiao Wang,Xiaojie Liang,Jiayu Yang,Zihan Su,Yue Chen,Lijuan Chen,Yuzhu Qian,Bei Long
The development of high-performance anode materials is crucial for aqueous ammonium ion batteries. In the meanwhile, adding an additional redox pair is thought to be a good way to raise the overall electrochemical performance of the system. In this study, a hybrid battery composed of active carbon and BiOI is developed using an NH 4 AC + NH 4 I electrolyte. Electrochemical tests and ex-situ characterization validate the dual processes of NH 4 + (de)intercalation and I − /I 2 redox. Moreover, the NH 4 I additive enhances the charge transfer of the whole battery and changes the phase transition of BiOI in the charge-discharge process. Consequently, this hybrid battery exhibits a long-term cyclic stability (70 % capacity retention after 2300 cycles at 0.2 A g −1 ) and a high specific capacity (196 mA h g −1 at 0.2 A g −1 ). The cell with a high-loading BiOI electrode (12 mg cm −2 ) also exhibits satisfactory performances, reflecting its application potential. This work provides a reference for designing aqueous hybrid battery.
研究领域:
材料科学
·
电化学
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产品关联
DOI
高影响因子
JOURNAL OF POLYMER RESEARCH
·
2022
·Vol. 29
·期 4
·1-9
·
IF 3.061
Xu Guangjuan,Zhang Shuran,Xie Wei,Wang Li,Xue Xiangxin,Qiao Yu,Xu Zhanlin,Su Zhongmin
A series of ionic covalent triazine frameworks (CTFs) bearing charged groups were designed and prepared through ZnCl 2 -catalyzed cyclotrimerization of 1,3-bis(4-cyanophenyl)imidazolium chloride and tricyanobenzene as an auxiliary monomer. Pore properties of the ionic CTFs could be controlled by varying the proportion of monomer. The resulting ionic CTFs had high BET specific surface areas up to 1105 m 2 /g, high pore volumes up to 0.65 cm 3 /g, and high physicochemical stability. Among the four ionic CTFs, tCTF-Cl-3 exhibited the highest CO 2 adsorption of 72.7 cm 3 /g and highest I 2 capture capacity of 370 wt%. The incorporation of ionic functional groups, the existence of homogenous charge distribution, and the permanent porosity improved the capturing ability and affinity of the ionic CTFs for CO 2 and I 2 . This methodology, based on the fine tuning of monomer ratio, can be utilized to obtain new insights into the preparation of functional ionic porous materials.
研究领域:
材料科学
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环境科学
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DOI
高影响因子
Energy Storage Materials
·
2020
·
IF 16.28
Chong Bai,Huijie Jin,Zongshuai Gong,Xizheng Liu,Zhihao Yuan
Aqueous Fe-I 2 rechargeable batteries are highly desirable for large-scale energy storage because of their intrinsic safety, cost effective, and wide abundance of iron and iodine. However, their development suffers from Fe dendrite growth and severe shuttle effect during cycling. Herein, we demonstrate a high-performance Fe-I 2 rechargeable battery using metal iron as anode, iodine/hierarchically porous carbon composite as cathode and an eco-friendly aqueous electrolyte. The anode modified with ascorbic acid effectively suppresses the formation of iron dendrite, while the cathode doped with nitrogen greatly reduces the shuttle of iodine species. The battery operates a reversible redox reaction of FeI 2 /I 2 pair with fast kinetics. A capacity ~190 mAh g -1 at current densities up to 5000 mA g -1 and excellent cycle stability of 100% after 550 cycles at 2000 mA g -1 are obtained. The battery achieves superior power density of ~1300 W kg -1 at 120 Wh kg -1 and high energy density of 130 Wh kg -1 at 356 W kg -1 . Our study shows great promise for high-performance rechargeable batteries with low-cost, eco-friendliness and high safety.
研究领域:
能源存储
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电池技术
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材料科学
✓ 已验证
DOI
高影响因子
JOURNAL OF ORGANIC CHEMISTRY
·
2021
·
IF 4.354
Ling Tang,Yangyi Zhang,Guisheng Deng
Ag(I)-catalyzed cascade reactions involving enynone cyclization and cross-coupling with phosphorus ylides have been achieved for the first time. Subsequent treatment of the reaction mixture with I2 afforded the corresponding (E)-α-alkenylfurans in 73–95% yields with excellent stereoselectively. A reasonable mechanism has been proposed.
研究领域:
有机化学
·
合成化学
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DOI
高影响因子
Materials Today Energy
·
2025
·
IF 8.6
Dong Fang,Jiali Wen,Jing Bai,Kai Chen,Kuiming Nie,Chen Bai,Baoxiu Mi,Dapeng Cao,Zhiqiang Gao
This work introduces new inorganic-organic hybrid gel electrolytes for quasi-solid dye-sensitized solar cells (qss-DSSC). Parent gel ( G2 ) contains components of SnI 2 , I 2 , 4-tert-butylpyridine (TBP) and ethylene glycol monomethyl ether (EGME), forms a gel after being sealed in air for about 2 weeks. TBP, EGME and Sn 4+ were proved essential for crystalline gel. Based on G2 , by selectively adding iodide salts, modified gels were obtained, namely G2-DMII , G2-LiI , G2-CsI , G2-CsI-LiI and G2-CsI-DMII , respectively. They were systematically characterized by XRD, SEM, FT-IR, TGA, UV-Vis, CV, EIS and LSV. Compared to G2 , the modified gels show coarser structure with obvious grain boundaries and more surface cavities, and the electrical properties were significantly improved. Among them, G2-CsI-DMII is the most uniform and densest, exhibiting the highest ionic conductivity of 7.22 × 10 −4 S cm −1 and the I 3 − diffusion coefficient of 8.52 × 10 −6 cm 2 s −1 . When integrated into N719-dye based qss-DSSCs, higher PCE of 10.68% under one-sun was achieved. Under indoor light of 10000 lux, the PCE soared to 31.96%, demonstrating the prepared gel electrolyte is efficient and has good adaptability in qss-DSSC applications across diverse lighting conditions. This study offers innovative ideas for designing new gel electrolyte in high-performance solar energy conversion applications.
研究领域:
材料科学
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能量转换
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电化学
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可再生能源
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固态化学
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING SCIENCE
·
2026
·
IF 5.1
Hongjiang Song,Jingjing Ma,Qian Zhang,Jie Liu
Inspired by the dyeing technology, PAH with dense cationic groups is exploited as a bifunctional binder. • In-situ spectroscopic techniques and theoretical calculations demonstrate the robust electrostatic anchoring effect. • The quantitative nanomechanic techniques visually demonstrate the robust mechanical properties of the I 2 @PAH cathode. • I 2 @PAH cathode exhibits a capacity decay rate as low as 0.0019% per cycle over 12,000 cycles. • At a I 2 loading of 7.32 mg cm ‒2 , the Zn-I 2 pouch cell exhibits high I 2 utilization and cycling stability. Aqueous Zn-I 2 batteries have shown great promise for sustainable energy storage owing to their cost-effectiveness, environmental compatibility, and intrinsic safety. However, their practical application is restricted by the severe shuttle effect of polyiodides and significant capacity loss caused by volume changes, especially for high-loading and large-size pouch cells. Poly(allylamine hydrochloride) (PAH), a cationic polymer, is commonly used as the robust fixing agent in the dyeing process. Its dense –NH 3 + cationic groups can combine with anions on the dye to form insoluble colored precipitates. Herein, inspired by the dyeing technology, PAH is employed as a bifunctional binder to construct an I 2 @PAH cathode, which can effectively anchor polyiodides through cation–anion interactions to suppress the shuttle effect. Moreover, quantitative nanomechanical techniques demonstrate that PAH possesses superior mechanical properties to maintain the structural stability of the I 2 cathodes during the cycling process. The I 2 @PAH cathode delivers remarkable cyclic stability and a high discharge capacity (165 mAh g ‒1 over 12,000 cycles at 2.0 A g ‒1 ). Notably, at an I 2 loading equal to 7.32 mg cm ‒2 , the Zn-I 2 pouch cell exhibits an initial discharge capacity equal to 195mAh g ‒1 with a high I 2 utilization of 92.4% and remains stable for over 150 cycles, highlighting the considerable potential of PAH as a high-efficiency binder for aqueous Zn-I 2 batteries. Download: Download high-res image (103KB) Download: Download full-size image
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DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2023
·
IF 19
Zishuai Zhang,Wei Ling,Ninggui Ma,Jiaqi Wang,Xiaoyang Chen,Jun Fan,Miao Yu,Yan Huang
High rate tolerance and long cycle life represent the critical demand of the market for energy storage devices, known as one of major challenges for the development of rechargeable aqueous batteries. Herein, a layered Mo4/3B2T2 (where “T” denotes -O, -OH, and -F terminations) MBene (a transition metal boride) with in-plane ordered metal vacancies is first proposed as an iodine species host of an aqueous Zn‖I 2 battery, delivering a discharge capacity of 106.8 mAh g −1 at 25 A g −1 after 230 000 cycles and 80 mAh g −1 at 100 A g −1 , far exceeding those of all Zn‖I 2 batteries ever reported. The high performance is attributed to the strong affinity with iodine species and accelerated the redox kinetics by the conductive MBene with metal vacancies, as evidenced by the one-step conversion of I ‒ /I 0 without the generation of I 3‒ ions. This work unlocks a new route for the construction of other halide or sulfur electrode batteries with superior durability and kinetics.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
ChemSusChem
·
2026
·Vol. 19
·期 18
·e71090
·
IF 5.9
Yang-Yu Sun,Bao-Hong Xu,Yan-Xi Chen,Ya-Qi Wang,Jun-Jun Liu,Ming-Xiao Deng,Hai-Zhu Sun
Iodine (I 2 ) cathodes for aqueous Zn–I 2 batteries suffer from sluggish redox kinetics and severe polyiodide shuttling, resulting in poor utilization and cycling stability. Herein, graphitic nitrogen-enriched carbonized polymer dots (CPDs) with a core–shell structure are integrated with a self-supporting porous carbon framework to construct a graphitic nitrogen-regulated porous carbon host. The porous framework provides abundant space for iodine accommodation and accessible pathways for mass transport, while CPDs introduce graphitic-N sites that strengthen iodine–host interactions and facilitate interfacial electron transfer. Their cooperative action favors a dominant direct I 2 /I − conversion pathway with substantially suppressed accumulation of soluble polyiodide species, thereby enabling fast iodine redox kinetics and excellent cycling stability. Benefiting from these synergistic effects, the optimized PCF-CPDs/I 2 -0.2 cathode delivers a high specific capacity of 146.1 mAh g −1 at 0.3 A g −1 with 99.6% capacity retention over 500 cycles. At 1 A g −1 , it maintains 117.5 mAh g −1 with 87.1% retention after 4000 cycles. This work demonstrates that coupling porous confinement with CPDs-mediated interfacial regulation provides an effective strategy for developing high-performance Zn–I 2 batteries. Graphical Graphitic-N-enriched carbonized polymer dots (CPDs) are integrated into a self-supporting porous carbon framework (PCF) to couple porous confinement with CPDs-mediated interfacial regulation. The resulting PCF-CPDs/I 2 -0.2 cathode substantially suppresses detectable accumulation of soluble polyiodide species, favors a predominantly direct I 2 /I − conversion pathway, facilitates interfacial charge transfer, improves iodine utilization, and enables long-term cycling stability in aqueous Zn–I 2 batteries.
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DOI
高影响因子
Materials Science and Engineering B-Advanced Functional Solid-State Materials
·
2025
·
IF 4.6
Hao Zou,Hailong Dong,Wanjiang You,Shilong Song,Lei Liao,Gaoling Liang,Ning Pan,Hao Lei,Xiaoqiang Wang
The bismuth-embedded columnar activated carbon (Bi-AC) composite was prepared by the method of self-reduction and investigated for trapping I 2 and CH 3 I. Our findings showed that the bismuth-based compounds mainly existed as simple substance in Bi-AC. The elemental bismuth was regularly spherical in the shape, and mostly embedded on the surface of activated carbon, seldom inside of activated carbon. The capture capacities of I 2 and CH 3 I by the Bi-AC composite was 569.0 ± 14.2 and 232.1 ± 17.7 mg/g, respectively, which was better than that of the commercial silver-based materials. I 2 was trapped to form I 5 - and Bi(IO 3 ) 3 , while CH 3 I was catalytically cleaved to form BiOI and I 5 - . The Bi-AC composite is expected be used as adsorbents of 129 I to replace silver-based materials due to its high performance and low cost.
研究领域:
环境科学
·
核化学与放射化学
✓ 已验证
产品关联
DOI
高影响因子
MATERIALS RESEARCH BULLETIN
·
2015
·
IF 2.288
Huanyong Li,Zhi Gu,Haiyang Zhang,Heqing Li,Li Fu
Three ZnE (E = Se, Te) single crystals were successfully grown directly from Zn-E (E = Se, Te) system with the assistance of I 2 or NH 4 Cl as the transport agents via a modified chemical vapor transport (CVT) method by avoiding the kinetics limitations of the congruent sublimation of ZnE compound. As-grown ZnE crystals exhibit different crystalline appearance due to various growth conditions. The structure, growth habit and morphologies of as-grown ZnE crystals are investigated by XRD , RO-XRD, SEM and optic microscope. ZnE crystals with NH 4 Cl transport agent look like the platelets with an interesting growth habit, while ZnE crystal with I 2 transport agent has high crystalline quality with a conical shape. Contrasting investigation between different growth results offers us an opportunity to understand the vapor-free-growth mechanism of ZnE crystals in closed-space CVT system, indicating that the free-growth habit of ZnE crystals depends on the growth parameters, which can be essentially attributed to their growth mechanism and the main vapor–solid reactions on the interfaces.
研究领域:
材料科学
·
晶体生长
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）