Energy & Environmental Materials最新文献

{"title":"Unraveling the High-Rate Electrochemical Kinetics of CuSbS2 for Sodium Storage","authors":"Youngho Jin,&nbsp;Honggyu Seong,&nbsp;Joon Ha Moon,&nbsp;Geongil Kim,&nbsp;June Young Jang,&nbsp;Jin Bae Lee,&nbsp;Seung-Ryong Kwon,&nbsp;Woonghee Lee,&nbsp;Kyu-Tae Lee,&nbsp;Jaewon Choi","doi":"10.1002/eem2.70284","DOIUrl":"https://doi.org/10.1002/eem2.70284","url":null,"abstract":"<p>Antimony-based materials have gained significant attention as anode materials for sodium-ion batteries (SIBs) due to their high theoretical capacity and excellent rate performance. However, metal sulfides such as Cu₂S and Sb₂S₃ exhibit an initial capacity drop followed by a subsequent capacity recovery. To address these challenges, copper antimony sulfide (CuSbS₂) is synthesized and evaluated as an anode material for SIBs. The synthesized CuSbS₂ effectively mitigates these capacity variations (330 mAhg⁻¹ at 2.0 Ag⁻¹ after 200th cycles) and demonstrates superior rate performance. Moreover, comprehensive electrochemical analyses, including the distribution of relaxation times (DRT) analysis from in situ electrochemical impedance spectroscopy (EIS), capacitive contribution assessment, and galvanostatic intermittent titration technique (GITT) measurements, confirm its improved kinetic properties compared to Sb₂S₃. This study provides valuable insights into the rational design of bimetallic sulfides and contributes to the advancement of electrochemical performance analysis and the development of high-performance SIB anode materials.</p>","PeriodicalId":11554,"journal":{"name":"Energy & Environmental Materials","volume":"9 5","pages":""},"PeriodicalIF":13.8,"publicationDate":"2026-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eem2.70284","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148696649","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Dimensional Revolution of Phosphorus: From Allotropicity to Battery System Applications","authors":"Shuhan Zhang,&nbsp;Zhiyuan Zhang,&nbsp;Ziying Pan,&nbsp;Kaixuan Hu,&nbsp;Yameng Yin,&nbsp;Yapan Wu,&nbsp;Caihong Yang,&nbsp;Lei Zheng,&nbsp;Dongsheng Li","doi":"10.1002/eem2.70292","DOIUrl":"https://doi.org/10.1002/eem2.70292","url":null,"abstract":"<p>Phosphorus-based materials have emerged as promising high-capacity anodes for next-generation batteries due to their high theoretical capacity and suitable operating voltage. However, practical applications are hindered by intrinsic limitations such as poor electrical conductivity, significant volume expansion, and sluggish ion kinetics. This review presents an innovative dimension-based classification framework, including zero-dimensional (0D), one-dimensional (1D), two-dimensional (2D), and three-dimensional (3D) phosphorus allotropes, to systematically explore the structural characteristics, synthesis methods, and electrochemical properties. We highlight the critical role of composite strategies, particularly with carbon and other functional materials, in mitigating the above challenges and enhancing electrochemical performance. The review provides a comprehensive analysis of phosphorus-carbon composites, heteroatom doping, and interfacial design strategies for improving cycling stability and rate capability. Furthermore, we examine the synergistic effects of heterostructures formed between different phosphorus allotropes, which significantly improve charge transport, structural stability, and cycling durability. This review aims to provide an outlook for the current challenges and future directions for the development of phosphorus-based electrodes in lithium-ion, sodium-ion, and potassium-ion batteries, thus unlocking the potential of high-performance phosphorus.</p>","PeriodicalId":11554,"journal":{"name":"Energy & Environmental Materials","volume":"9 5","pages":""},"PeriodicalIF":13.8,"publicationDate":"2026-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eem2.70292","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148695750","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"RuO2-Based High-Entropy Oxide and Its Asymmetric Catalysis on Polysulfide Conversion in Lithium–Sulfur Batteries","authors":"Jingyi Zhou,&nbsp;Youliang Wang,&nbsp;Guixiang Zhong,&nbsp;Liyuan Tian,&nbsp;Yeqiang Che,&nbsp;Ze Zhang","doi":"10.1002/eem2.70282","DOIUrl":"https://doi.org/10.1002/eem2.70282","url":null,"abstract":"<p>High-entropy oxides with five or more metal components in a single oxide phase, hold attractive potential to enhance the lithium polysulfides adsorption–catalysis ability in Li-S batteries due to the noteworthy synergistic effect of the multiple metal sites. Herein, we have synthesized an RuO₂-based high-entropy oxide, that is, (RuIrFeCoNi)O₂ via a simple molten salt method for Li-S batteries. Our results prove that the introduction of multiple metal components endows high-entropy oxide with moderate adsorption of lithium polysulfides and promising bidirectional catalysis on the liquid–solid conversion between soluble lithium polysulfides and insoluble Li₂S. Particularly, compared with the quaternary (RuFeCoNi)O₂ catalyst, the inferior kinetics enhancement of the lithium polysulfides generation, but the superior promotion of Li₂S deposition for high-entropy oxide greatly favors the inhibition of shuttle effect. Such an asymmetric catalysis behavior induces remarkable electrochemical performance of Li-S batteries assembled with high-entropy oxide-modified separator. High specific capacities of 1641.1 mAh g⁻¹ at 0.1 C and 812.5 mAh g⁻¹ at 2 C are achieved. Remarkably, superior cycle stability is realized with a low capacity decay rate of only 0.060% per cycle within 1000 cycles at 1 C rate. This study unveils the catalytic mechanism of high-entropy oxide in promoting polysulfide conversion and offers a robust foundation for designing efficient catalysts for Li-S batteries.</p>","PeriodicalId":11554,"journal":{"name":"Energy & Environmental Materials","volume":"9 5","pages":""},"PeriodicalIF":13.8,"publicationDate":"2026-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eem2.70282","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148696337","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Tuning S Doping in Porous Carbon for Enhanced Initial Coulombic Efficiency and Rate Performance for Sodium/Potassium-Ion Batteries","authors":"Jiahao Zhao,&nbsp;Lankun Shi,&nbsp;Mengting Jia,&nbsp;Yu Gao,&nbsp;Zhongmin Lang,&nbsp;Boyu Sun,&nbsp;Jinlong Cui,&nbsp;Shaohui Li","doi":"10.1002/eem2.70294","DOIUrl":"https://doi.org/10.1002/eem2.70294","url":null,"abstract":"<p>Amorphous carbon has emerged as a promising anode material for sodium-ion (SIBs) and potassium-ion batteries (PIBs) due to its high specific capacity, abundant defects, and low production cost. Nevertheless, its practical application remains hindered by suboptimal rate performance and low initial Coulombic efficiency (ICE). Heteroatom doping, particularly with sulfur (S), has proven to be an effective strategy for addressing these limitations. In this study, S was successfully incorporated in a controlled amount into the amorphous porous C framework via a combination of low-temperature carbonization and a facile fumigation process. The introduction of S and the low-temperature treatment synergistically induced a higher density of structural defects, which contributed to significantly enhanced rate performance of the sulfur–carbon (S/C) composite. Furthermore, controlled S doping facilitated the formation of a thinner and more stable solid electrolyte interphase (SEI) during the initial cycling, thereby minimizing irreversible sodium consumption and leading to a substantial improvement in ICE. As an anode for SIBs, the optimized S/C composite delivers a high reversible capacity of 480 mAh g⁻¹ at 0.1 A g⁻¹ and maintains a capacity of 232.6 mAh g⁻¹ even at 5.0 A g⁻¹. Notably, an ICE of 83.1% is achieved under a current density of 0.1 A g⁻¹. When applied as the anode for PIBs, the composite exhibits a reversible capacity of 439.2 mAh g⁻¹ and an ICE of 61.2% at the same current density. This work provides a viable and scalable approach to simultaneously enhance the rate performance and ICE of amorphous C.</p>","PeriodicalId":11554,"journal":{"name":"Energy & Environmental Materials","volume":"9 5","pages":""},"PeriodicalIF":13.8,"publicationDate":"2026-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eem2.70294","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148696541","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synergistic Engineering of Oxygen Vacancies and Topological Surface States in Bi2Te3/TiO2-X Heterostructures for Highly Efficient Photothermal-Driven CO2 Photoreduction","authors":"Bingke Zhang,&nbsp;Chenchen Zhao,&nbsp;Jing Qiao,&nbsp;Changcun Li,&nbsp;Yang Wang,&nbsp;Xingshuo Liu,&nbsp;Dongbo Wang,&nbsp;Gang Liu,&nbsp;Zhao Qian,&nbsp;Rajeev Ahuja,&nbsp;Jinzhong Wang,&nbsp;Degang Zhao","doi":"10.1002/eem2.70258","DOIUrl":"https://doi.org/10.1002/eem2.70258","url":null,"abstract":"<p>Solar-driven photothermal CO₂ reduction into multicarbon (C₂⁺) products represents a promising yet challenging route for sustainable fuel production. A key obstacle remains the inefficient C–C coupling due to poor CO₂ activation and limited charge utilization, especially under full-spectrum light. Herein, we propose a heterojunction photocatalyst that synergistically integrates the topological insulator Bi₂Te₃ with oxygen-doped TiO_2-X to address these challenges. The metallic nature of Bi₂Te₃ enables broad-spectrum photon harvesting from UV to near-infrared and generates substantial photothermal heat, while the oxygen vacancies in TiO_2-X create an asymmetric electronic environment that promotes CO₂ adsorption, bending, and activation. The built-in electric field formed at the heterointerface drives efficient electron transfer from Bi₂Te₃ to TiO_2-X, which suppresses charge recombination and ensures a prolonged electron supply for multistep reduction reactions. Under full-spectrum irradiation without external heating, the optimized Bi₂Te₃/TiO_2-X catalyst achieves a remarkable C₂⁺ production rate of 15.08 μmol g⁻¹ h⁻¹ with selectivity toward C₂H₄ and C₂H₆. Combined photoelectronic measurements and theoretical analyses confirm that the synergistic photothermal–photocatalytic effect and tailored charge dynamics collectively lower the energy barrier for C–C coupling. This work offers a strategic material design leveraging topological insulators and defect engineering for efficient CO₂-to-C₂⁺ conversion.</p>","PeriodicalId":11554,"journal":{"name":"Energy & Environmental Materials","volume":"9 5","pages":""},"PeriodicalIF":13.8,"publicationDate":"2026-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eem2.70258","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148696516","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Engineering Nanoclay Edges to Construct Effective Polysulfide-Trapping Interface for Markedly Enhanced Electrochemical Energy Storage","authors":"Hongjie Xu,&nbsp;Chenggong Zheng,&nbsp;Xiaofeng Zhu,&nbsp;Yalu Li,&nbsp;Zhongzheng Yang,&nbsp;Xiao Wang,&nbsp;Yuping Tong,&nbsp;Xi Chen,&nbsp;Yangyu Liu,&nbsp;Shilin Zhang,&nbsp;Junhua Hu,&nbsp;Guosheng Shao","doi":"10.1002/eem2.70309","DOIUrl":"https://doi.org/10.1002/eem2.70309","url":null,"abstract":"<p>Lithium–sulfur (Li–S) batteries suffer from the infamous lithium polysulfides (LPSs) shuttle effect, which generates reduced utilization of active materials and polysulfide-corrosion-accelerated lithium dendrite, ultimately resulting in poor capacity and cycling stability. While various natural clays have demonstrated effective adsorption for LPSs, there is no consensus on the adsorption mechanisms and active sites. Inspired by the distinct acid–base chemistry of clay basal and edge surfaces, we designed a capsule-shaped silicate clay (H-ATP-N₂) that is rich in protonated edge hydroxyl groups (-OH²⁺). The synthesis involved a two-step process: first, microwave-assisted acid treatment was used to efficiently activate the surface of fibrous attapulgite. Next, N₂ plasma etching was applied to further enrich the material with the -OH₂⁺. These specific methods were chosen to optimize the activation and functionalization of attapulgite, enhancing its ability to serve as a highly effective polysulfide-trapping interface for improved electrochemical energy storage. Compared with the surface hydroxyl sites, the -OH₂⁺ act as Lewis acid sites to accept lone electron pairs from LPSs, thereby exhibiting a stronger interaction to successfully inhibit the shuttle effect. With the protonated edge hydroxyl groups in attapulgite dominating LPSs adsorption via a Lewis acid–base adsorption mechanism, the H-ATP-N₂ cathodes deliver a 1139.9 mAh g⁻¹ capacity at 0.1 C, and a reversible capacity of 808.6 mAh g⁻¹ after 500 cycles at 0.5 C with an ultralow capacity decay rate of 0.04% per cycle, which have surpassed the vast majority of reported clay-based cathodes.</p>","PeriodicalId":11554,"journal":{"name":"Energy & Environmental Materials","volume":"9 5","pages":""},"PeriodicalIF":13.8,"publicationDate":"2026-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eem2.70309","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148696542","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Interfacial Solvent Molecular Engineering via High-Safety Dense Separators for High-Rate Lithium-Ion Batteries","authors":"Haitao Zhou,&nbsp;Jie Gu,&nbsp;Haiyun Zhou,&nbsp;Yihong Deng,&nbsp;Yafei Shi,&nbsp;Yang Yang,&nbsp;Chen Wang,&nbsp;Hongquan Gao,&nbsp;Jianchun Wu,&nbsp;Libo Wang,&nbsp;Xiangdong Huo","doi":"10.1002/eem2.70303","DOIUrl":"https://doi.org/10.1002/eem2.70303","url":null,"abstract":"<p>To address the conflicting challenges of energy density, rate performance, and safety in lithium metal batteries and self-generated lithium metal anodes, we propose a synergistic optimization strategy that employs a high-density polyphenylene sulfide (PPS-separator) and a dimethyl carbonate-based electrolyte. Density functional theory calculations and experiments demonstrate that due to its weak polyphenylene sulfide adsorption energy (−0.3261 eV) and small molecular size, the dimethyl carbonate solvent can construct efficient ion hopping channels at the polyphenylene sulfide crystal interface, achieving a room-temperature ionic conductivity of 1.02 × 10⁻³ S cm⁻¹ (3.5 times that of conventional ceramic separators). Functional additives (LiPO₂F₂/FEC/VC) are used to optimize the electrode interface, forming a LiF/Li₂CO₃ dual-phase composite SEI, which drives uniform two-dimensional lithium metal deposition and reduces interfacial impedance. The system has been stably cycled 435 cycles under extreme conditions, maintaining a capacity retention of over 80%. The intrinsic flame retardancy of polyphenylene sulfide-separator, coupled with its minimal electrolyte requirements, facilitates electrolyte vaporization-induced self-blocking of ion channels during nail penetration tests. This effectively suppresses thermal runaway in 6-Ah high-nickel NCM811/SiC pouch cells, keeping peak temperatures below 50 °C and offering a novel approach to resolving the trade-off between high energy density and high safety.</p>","PeriodicalId":11554,"journal":{"name":"Energy & Environmental Materials","volume":"9 5","pages":""},"PeriodicalIF":13.8,"publicationDate":"2026-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eem2.70303","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148696071","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Interfacial and Ligand Dual Engineering Toward Energy-Saving Hydrogen Production Coupled with Sulfion Degradation","authors":"Jinghui Guo,&nbsp;Min Zhou,&nbsp;Yang Shen,&nbsp;Guo Yu,&nbsp;Qijun Wang,&nbsp;Heyan Yu,&nbsp;Leyuan Wang,&nbsp;Feng Wang,&nbsp;Wei Yang,&nbsp;Hairen Wang,&nbsp;Yu Ding,&nbsp;Yan Zhao,&nbsp;Zhaoyang Wang","doi":"10.1002/eem2.70261","DOIUrl":"https://doi.org/10.1002/eem2.70261","url":null,"abstract":"<p>Electrolytic hydrogen production assisted by the sulfion oxidation reaction (SOR) offers a low-cost, energy-efficient alternative to conventional methods by replacing the anodic oxygen evolution reaction (OER), which reduces the required anode potential. However, scaling this technology requires bifunctional electrocatalysts that efficiently drive SOR and sustain the hydrogen evolution reaction (HER) at high current density in concentrated sulfion electrolytes. Herein, using a coordinated regulation strategy of interface and ligand, we constructed a nickel cobalt sulfide/ligand-functionalized nickel cobalt hydroxide composite catalyst (NiCo-S/NiCo-OH-CL) with rich sulfide/hydroxide heterointerfaces <i>via</i> a hydrothermal ion exchange method, using a metal–organic framework as the precursor. Benefiting from the porous network, sulfur-repellent hydrophilic surface, and dual electronic structure regulation from heterointerfaces and ligands, it demonstrates excellent SOR and HER activity. The constructed coupled electrocatalytic system requires an ultra-low cell voltage of only 0.62 V at a current density of 100 mA cm⁻², achieving a cathodic hydrogen Faraday efficiency of ≥95% and operational stability for over 3200 h or 133 days. The sulfur and hydrogen yields reach 0.36 kg h⁻¹ m⁻² and 0.036 kg h⁻¹ m⁻², respectively. This work advances a synergistic interface-ligand modulation strategy for bifunctional catalysts and demonstrates a pathway for energy-efficient hydrogen production and sulfur recovery.</p>","PeriodicalId":11554,"journal":{"name":"Energy & Environmental Materials","volume":"9 5","pages":""},"PeriodicalIF":13.8,"publicationDate":"2026-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eem2.70261","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148696469","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A Sulfur Fixation Strategy via Magnesium Oxide for Constructing High-Rate Hard Carbon Anodes in Sodium-Ion Batteries","authors":"Zebin Song,&nbsp;Qin Gu,&nbsp;Yin Zhang,&nbsp;Peng Xiao,&nbsp;Liping Wang,&nbsp;Jian Gao","doi":"10.1002/eem2.70239","DOIUrl":"10.1002/eem2.70239","url":null,"abstract":"<p>Sulfur doping is an effective strategy to promote the electrochemical performance of hard carbon anode. However, its commercial applications of hard carbon materials have been limited by low initial Coulombic efficiency and poor cycle by traditional sulfur doping method. Herein, we used sulfur fixation strategy through magnesium oxide to produce hard carbon by sodium lignosulfonate precursor, which adjusted the microstructure of the hard carbon with increasing the disorder degree and interlayer spacing. Thereby, this not only provides more space and better kinetic conditions for the insertion/deinsertion of Na⁺ but also introduces abundant defects and active sites, thereby enhancing the surface adsorption capacity and significantly improving the electronic conductivity. As a result, the sulfur-doped hard carbon material achieved a reversible initial capacity of 307.1 mAh g⁻¹ at 20 mA g⁻¹, which also has a higher capacity retention of 77.5% at 500 mA g⁻¹ compared with untreated hard carbon (capacity retention 66.5%). Moreover, the 21700 cylindrical batteries with the sulfur-doped hard carbon as anode have the capacity retention of 91.5% at 1.4 A after 400 cycles. This method opens up a new path for the preparation of long cycle hard carbon anodes.</p>","PeriodicalId":11554,"journal":{"name":"Energy & Environmental Materials","volume":"9 4","pages":""},"PeriodicalIF":14.1,"publicationDate":"2026-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/pdfdirect/10.1002/eem2.70239","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147915289","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mitigating Cathodic Challenges in Aqueous Zn–I2 Batteries via Dual-Effect Function Strategy: Concurrent I3− Immobilization and Catalysis of I0/I− Redox Kinetics","authors":"Mudi Li,&nbsp;Wei Wang,&nbsp;YuMeng Liu,&nbsp;Qingyuan Wang,&nbsp;Tianqi Wang,&nbsp;Xin He,&nbsp;Zhanpeng Zhou,&nbsp;Haomiao Li,&nbsp;Min Zhou,&nbsp;Kangli Wang,&nbsp;Kai Jiang","doi":"10.1002/eem2.70236","DOIUrl":"https://doi.org/10.1002/eem2.70236","url":null,"abstract":"<p>Aqueous-based zinc-iodine batteries (AZIBs) are extremely competitive and have gigantic potential in the next generation of energy storage technologies on account of their ultra-high safety and excellent theoretical capacity. Howbeit, the unsatisfactory conductivity of iodine and the shuttle effect of polyiodides will greatly confine their commercial applications. In this study, an original composite material of selenium (Se) and activated carbon (AC) (designated as Se–AC), as a functional iodine-adsorbed cathode host, is successfully synthesized with the dual-effect function of Se. Se has a larger atomic size and higher polarizability compared to carbon, effectively accelerating the charge transfer rate. Therefore, the incorporation of Se nanoparticles can generate higher strain at the edge of AC to improve the adsorption of iodine species, especially I₃⁻. Furthermore, the inorganic Se nanoparticles can make AC provide abundant adsorption-catalytic active sites that significantly enhance electron transfer kinetics while catalyzing the I⁰/I⁻ conversion reaction. As expected, Se–AC/I₂ can deliver an ideal specific capacity of 249.7 mAh g⁻¹ at 0.1 A g⁻¹. Additionally, the energy density of Se–AC/I₂//Zn exhibits 217.5 Wh kg⁻¹ at 86.2 W kg⁻¹, exceeding most reported AZIBs. This dual-effect function strategy creates transformative opportunities for AZIBs, enabling high energy density, long cycling, and cost-effective energy storage solutions for renewable grids.</p>","PeriodicalId":11554,"journal":{"name":"Energy & Environmental Materials","volume":"9 4","pages":""},"PeriodicalIF":14.1,"publicationDate":"2026-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eem2.70236","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148202976","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}