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Prototype Validation of a Large-Scale CO2-to-Formate Zero-Gap Electrolyzer. 大型二氧化碳制甲酸零间隙电解槽的原型验证。
IF 7.5 2区 化学
ChemSusChem Pub Date : 2025-07-25 DOI: 10.1002/cssc.202501116
Jose Antonio Abarca, Cristina González-Fernández, Camilo Estevan Peralta, Axel Arruti, Esther Santos, Guillermo Díaz-Sainz, Angel Irabien
{"title":"Prototype Validation of a Large-Scale CO<sub>2</sub>-to-Formate Zero-Gap Electrolyzer.","authors":"Jose Antonio Abarca, Cristina González-Fernández, Camilo Estevan Peralta, Axel Arruti, Esther Santos, Guillermo Díaz-Sainz, Angel Irabien","doi":"10.1002/cssc.202501116","DOIUrl":"https://doi.org/10.1002/cssc.202501116","url":null,"abstract":"<p><p>The scale-up of gas-phase CO<sub>2</sub> electroreduction to formate is crucial for its industrial application but remains largely unexplored. This work presents the design and validation of a 100 cm<sup>2</sup> electrolyzer prototype featuring a zero-gap configuration and a serpentine flow field to ensure uniform CO<sub>2</sub> distribution. Scaling up a CO<sub>2</sub> electrolyzer requires optimized flow field design, in this case, a serpentine geometry enhances CO<sub>2</sub> transport and minimizes mass transfer limitations, thereby improving overall performance. Experimental prototype testing is conducted to evaluate the effects of current density and water content in the CO<sub>2</sub> feed. Optimal performance is achieved at 200 mA cm<sup>-</sup> <sup>2</sup> and a water content of 15 g h<sup>-</sup> <sup>1</sup>, yielding a formate concentration of 760 g L<sup>-</sup> <sup>1</sup>, a Faradaic efficiency of 67%, a production rate of 7 mmol m<sup>-</sup> <sup>2</sup> s<sup>-</sup> <sup>1</sup>, and an energy consumption of 507 kWh kmol<sup>-</sup> <sup>1</sup>. Comparisons with a 10 cm<sup>2</sup> lab-scale reactor reveal improved CO<sub>2</sub> conversion and production rate, validating the benefits of optimized flow field design and scale-up approach. While energy efficiency is somewhat reduced to increased Ohmic losses, the overall results support the technical feasibility of scaling gas-phase CO<sub>2</sub>-to-formate electrolysis. Further improvements in design and energy management are still needed to advance toward industrial implementation.</p>","PeriodicalId":149,"journal":{"name":"ChemSusChem","volume":" ","pages":"e2501116"},"PeriodicalIF":7.5,"publicationDate":"2025-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144705834","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Critical Roles of Heterogeneous Electrocatalysts for Advanced Lithium-Sulfur Batteries. 非均相电催化剂在先进锂硫电池中的关键作用。
IF 7.5 2区 化学
ChemSusChem Pub Date : 2025-07-25 DOI: 10.1002/cssc.202500700
Qin Yang, Yunfeng Zhang, Paul Takyi-Aninakwa, Haitao Hu, Yingze Song
{"title":"Critical Roles of Heterogeneous Electrocatalysts for Advanced Lithium-Sulfur Batteries.","authors":"Qin Yang, Yunfeng Zhang, Paul Takyi-Aninakwa, Haitao Hu, Yingze Song","doi":"10.1002/cssc.202500700","DOIUrl":"https://doi.org/10.1002/cssc.202500700","url":null,"abstract":"<p><p>Lithium-sulfur (Li-S) batteries are gaining attention due to their high theoretical energy density, cost-effectiveness, and environmental friendliness. However, issues such as the polysulfide shuttle effect and sluggish redox kinetics lead to low sulfur utilization efficiency and poor cycling lifespan, hindering their commercial viability. Heterogeneous catalysts have become essential for regulating sulfur in high-performance Li-S batteries. This review starts by reviewing the fundamental mechanisms involved in the redox reactions of sulfur species. The critical roles of heterogeneous catalysts in sulfur modulation are then discussed, including their ability of relieving the shuttle effect and facilitating catalytic conversions by summarizing the recent theoretical explorations and experimental findings based on various advanced characterization techniques. Additionally, the existing challenges in the field are summarized and strategic directions are proposed for heterogeneous electrocatalysts in future research on Li-S batteries. This review aims to inspire innovative designs of catalysts for the next-generation Li-S batteries.</p>","PeriodicalId":149,"journal":{"name":"ChemSusChem","volume":" ","pages":"e2500700"},"PeriodicalIF":7.5,"publicationDate":"2025-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144705892","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Dynamic Reconstruction of Ni/In2O3/ZrO2 Catalyst in Reverse Water-Gas Conversion Reaction. 水-气逆向转化反应中Ni/In2O3/ZrO2催化剂的动态重构
IF 7.5 2区 化学
ChemSusChem Pub Date : 2025-07-25 DOI: 10.1002/cssc.202500664
Tingting Wang, Chan Wu, Hui Yue, Sichun Yang, Haijiao Lu, Enxian Yuan, Quanhong Ma, Naixu Li, Jiancheng Zhou
{"title":"Dynamic Reconstruction of Ni/In<sub>2</sub>O<sub>3</sub>/ZrO<sub>2</sub> Catalyst in Reverse Water-Gas Conversion Reaction.","authors":"Tingting Wang, Chan Wu, Hui Yue, Sichun Yang, Haijiao Lu, Enxian Yuan, Quanhong Ma, Naixu Li, Jiancheng Zhou","doi":"10.1002/cssc.202500664","DOIUrl":"https://doi.org/10.1002/cssc.202500664","url":null,"abstract":"<p><p>The reconfiguration of catalysts in situ will obviously affect their catalytic performance, while the evolution process and the mechanism of reaction process remain unclear. Herein, a series of ternary Ni/In<sub>2</sub>O<sub>3</sub>/ZrO<sub>2</sub> catalysts is prepared by the two-step method. In the reaction atmosphere (CO<sub>2</sub>/H<sub>2</sub>), In<sub>2</sub>O<sub>3</sub> particles are highly dispersed on the carrier ZrO<sub>2</sub>, and are partially reduced to form InO<sub>x</sub> layers. Moreover, In<sub>2</sub>O<sub>3</sub> tends to migrate near Ni species, forming the NiInO<sub>x</sub> complex structure decorated by InO<sub>x</sub> layers. It is demonstrated that indium oxide serves as the main active site in the reverse water-gas conversion reaction, and Ni species function as an auxiliary agent to generate the strong metal-support interaction effect with indium oxide, facilitate the formation of the key intermediates HCOO* and CO*, and further enhance the CO yield. Ab initio molecular dynamics and density functional theory calculations confirm that the In<sub>2</sub>O<sub>3</sub> clusters have undergone dynamic structural reconstruction on the ZrO<sub>2</sub> support driven by temperature, and In<sub>2</sub>O<sub>3</sub> serves as the preferential adsorption site for CO<sub>2</sub>.</p>","PeriodicalId":149,"journal":{"name":"ChemSusChem","volume":" ","pages":"e2500664"},"PeriodicalIF":7.5,"publicationDate":"2025-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144705833","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Effects of a Single Atom Substitution on the Physical Properties, Excited State Dynamics, and Iodine Capture Performance of Emissive Covalent Organic Frameworks. 单原子取代对发射共价有机骨架的物理性质、激发态动力学和碘捕获性能的影响。
IF 7.5 2区 化学
ChemSusChem Pub Date : 2025-07-24 DOI: 10.1002/cssc.202500791
Sayan Maiti, Jatan K Sharma, Melika Eshaghi Kenari, Nilanjan Seal, Jianheng Ling, Matthew A Addicoat, Thomas W Kasel, Haoyuan Chen, Tomče Runčevski, Phillip J Milner, Francis D'Souza, Anindita Das
{"title":"Effects of a Single Atom Substitution on the Physical Properties, Excited State Dynamics, and Iodine Capture Performance of Emissive Covalent Organic Frameworks.","authors":"Sayan Maiti, Jatan K Sharma, Melika Eshaghi Kenari, Nilanjan Seal, Jianheng Ling, Matthew A Addicoat, Thomas W Kasel, Haoyuan Chen, Tomče Runčevski, Phillip J Milner, Francis D'Souza, Anindita Das","doi":"10.1002/cssc.202500791","DOIUrl":"https://doi.org/10.1002/cssc.202500791","url":null,"abstract":"<p><p>A common strategy for developing emissive covalent organic frameworks (COFs) with varied properties is incorporating diverse chromophoric monomers. Herein, an alternative approach is adopted to demonstrate that a simple alteration in just one atom (oxygen vs. sulfur) in monomer design can result in significant differences in the physical, chemical, and photophysical properties of the resulting COFs. Specifically, monomers with the same symmetry but containing either urea or thiourea functionalities are used to synthesize two crystalline, fully conjugated emissive COFs, COF-SMU-2 (urea-based), and COF-SMU-3 (thiourea-based), with sql type topology. Steady-state (both in solid state and solution), time-resolved, and broadband femtosecond transient absorption spectroscopies reveal the excited-state exciton dynamics of the two COFs, explaining the dramatic differences in their photoluminescence behaviors. Further, density functional theory (DFT) studies are performed, which confirm the occurrence of charge transfer in these systems. A direct impact of the single atom variation is also observed during I<sub>2</sub> adsorption studies. Taken together, this study presents new routes to fabricate COFs with distinct properties by making single-atom modulations, and widens the scope of developing emissive COFs capable of demonstrating excited-state charge transfer, with potential applications in optoelectronics and environmental remediation.</p>","PeriodicalId":149,"journal":{"name":"ChemSusChem","volume":" ","pages":"e2500791"},"PeriodicalIF":7.5,"publicationDate":"2025-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144697210","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Progress in Designing Greener Antibiotics. 设计绿色抗生素的进展。
IF 7.5 2区 化学
ChemSusChem Pub Date : 2025-07-24 DOI: 10.1002/cssc.202500788
Katja S Håheim, Liza Nguyen Van Sang, Magne O Sydnes
{"title":"Progress in Designing Greener Antibiotics.","authors":"Katja S Håheim, Liza Nguyen Van Sang, Magne O Sydnes","doi":"10.1002/cssc.202500788","DOIUrl":"https://doi.org/10.1002/cssc.202500788","url":null,"abstract":"<p><p>The accumulation of pharmaceuticals in the environment, especially in the marine environment, that are persistent is a growing global environmental and health problem. In particular, antibiotics are a concern due to global overuse, with as much as 90% of the active substance being excreted from the patient. Antimicrobial resistance is a serious threat to humanity and must be fought on every battlefront. A key strategy is the construction of novel antimicrobial scaffolds that the bacteria do not have preprogrammed resistance toward, which can further naturally degrade before accumulating in the environment. In this perspective, the ongoing research that focuses on developing strategies that enable antibiotics to decompose quickly after leaving the patient is highlighted, discussed, and linked to the 12 principles of green chemistry.</p>","PeriodicalId":149,"journal":{"name":"ChemSusChem","volume":" ","pages":"e2500788"},"PeriodicalIF":7.5,"publicationDate":"2025-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144697211","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Status and Outlook of Solid Oxide Cells for Hydrocarbon Fuel Conversion. 碳氢燃料转化用固体氧化物电池的现状与展望。
IF 7.5 2区 化学
ChemSusChem Pub Date : 2025-07-24 DOI: 10.1002/cssc.202501131
Xin Zhou, Xian Pan, Huiping Yang, Tao Li, Zewei Lyu, Dongxu Cui, Shiliang Wu
{"title":"Status and Outlook of Solid Oxide Cells for Hydrocarbon Fuel Conversion.","authors":"Xin Zhou, Xian Pan, Huiping Yang, Tao Li, Zewei Lyu, Dongxu Cui, Shiliang Wu","doi":"10.1002/cssc.202501131","DOIUrl":"https://doi.org/10.1002/cssc.202501131","url":null,"abstract":"<p><p>Solid oxide electrolysis cell (SOEC) has emerged as a key enabling technology for achieving carbon-neutral energy systems, owing to its high efficiency and intrinsic compatibility with renewable energy sources. To date, research has primarily focused on three major processes in SOEC: H<sub>2</sub>O electrolysis, CO<sub>2</sub> electrolysis, and H<sub>2</sub>O/CO<sub>2</sub> co-electrolysis. In contrast, the electrochemical conversion of hydrocarbon fuels, despite its significant potential for value-added chemical production, remains underexplored and lacks a comprehensive systematic review. This review addresses recent progress in SOEC-mediated hydrocarbon conversion, including H<sub>2</sub>O/CO<sub>2</sub> co-electrolysis for syngas generation, methane-assisted electrolysis, and the electrochemical transformation of C<sub>2</sub>H<sub>4</sub> and other hydrocarbons. Particular attention is given to the integration of SOEC with partial oxidation, dry reforming, and oxidative coupling of methane. The review first outlines the structure and key materials of SOEC. It then summarizes the reaction mechanisms, current progress, and major technical challenges associated with each conversion pathway. Finally, it analyzes how advances in electrode material design, reaction mechanism modulation, and reactor engineering influence SOEC performance and long-term durability. Several critical technical bottlenecks, including carbon deposition, electrode degradation, and limited selectivity, are identified. A forward-looking research roadmap is proposed to guide the scale-up and practical deployment of SOEC for sustainable hydrocarbon fuel conversion.</p>","PeriodicalId":149,"journal":{"name":"ChemSusChem","volume":" ","pages":"e2501131"},"PeriodicalIF":7.5,"publicationDate":"2025-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144697213","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Structure-Activity Relationships in RuCs/MgO Catalysts During Ammonia Synthesis. 氨合成过程中RuCs/MgO催化剂的构效关系
IF 7.5 2区 化学
ChemSusChem Pub Date : 2025-07-24 DOI: 10.1002/cssc.202501035
Linus Biffar, Niklas Martin Brinker, Peter Pfeifer, Roland Dittmeyer, Jan-Dierk Grunwaldt, Dmitry E Doronkin
{"title":"Structure-Activity Relationships in RuCs/MgO Catalysts During Ammonia Synthesis.","authors":"Linus Biffar, Niklas Martin Brinker, Peter Pfeifer, Roland Dittmeyer, Jan-Dierk Grunwaldt, Dmitry E Doronkin","doi":"10.1002/cssc.202501035","DOIUrl":"https://doi.org/10.1002/cssc.202501035","url":null,"abstract":"<p><p>In the industrial synthesis of ammonia, a combination of high temperature and pressure is required to achieve a reasonable educt conversion. Efforts have been undertaken to lower these requirements by utilizing ruthenium-based catalysts promoted with alkali metals, which have the potential to lower the energy barrier associated with the dissociative adsorption of nitrogen. In this work, the structure of Ru and Cs species is probed in impregnated RuCs/MgO and Ru/MgO catalysts by operando X-ray absorption spectroscopy during reduction and ammonia synthesis at pressures up to 19 bar(a) in pure gas feed as well as the deactivation behavior with unpure feed containing 25 ppm oxygen. Interconversion of three types of Ru species, including RuO<sub>2</sub>, highly dispersed RuO<sub>x</sub>, and metallic Ru, occurs for both studied catalysts. Promotion by Cs leads to higher content of metallic Ru at the expense of dispersed RuO<sub>x</sub> and results in higher NH<sub>3</sub> concentration at the reactor outlet. Exposure of the catalysts to traces of oxygen enables a gradual transformation of bare Cs<sup>+</sup> cations to hydrated species [Cs(H<sub>2</sub>O)<sub>x</sub>]<sup>+</sup>. The irreversible deactivation of the catalyst is traced back to the leaching of cesium species, which has a disproportionate effect on the catalytic activity.</p>","PeriodicalId":149,"journal":{"name":"ChemSusChem","volume":" ","pages":"e2501035"},"PeriodicalIF":7.5,"publicationDate":"2025-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144697214","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Spin State Differentiated [3Fe-4S] Cluster Electrocatalyzes Water Oxidation Efficiently. 自旋态分化[3Fe-4S]团簇电催化水氧化的研究
IF 7.5 2区 化学
ChemSusChem Pub Date : 2025-07-23 DOI: 10.1002/cssc.202500812
Rong Yan, Qian-Cheng Luo, Zi-Han Li, Na-Na Sun, Wei-Peng Chen, Yuan-Qi Zhai, Ho Johnny Chung Yin, Xiaotai Wang, Xin Tu, Yan-Zhen Zheng
{"title":"Spin State Differentiated [3Fe-4S] Cluster Electrocatalyzes Water Oxidation Efficiently.","authors":"Rong Yan, Qian-Cheng Luo, Zi-Han Li, Na-Na Sun, Wei-Peng Chen, Yuan-Qi Zhai, Ho Johnny Chung Yin, Xiaotai Wang, Xin Tu, Yan-Zhen Zheng","doi":"10.1002/cssc.202500812","DOIUrl":"https://doi.org/10.1002/cssc.202500812","url":null,"abstract":"<p><p>Though there are many synthetic iron-sulfur clusters that have been reported to show catalytic activity mimicking the natural cofactors in metalloenzymes, the influence of the spin state on the catalytic property is seldom touched. Here, a disulfide-bridged triiron(II) complex is shown, namely [Fe<sub>3</sub>(Sip)<sub>4</sub>][CF<sub>3</sub>SO<sub>3</sub>]<sub>2</sub> (Fe<sub>3</sub>(Sip)<sub>4</sub>, HSip = sulfanylpropyliminomethyl-pyridine), can efficiently electrocatalyze water oxidation with a turnover frequency of 932 s<sup>-1</sup> and Faraday efficiency of 86%, better than many iron-based catalysts. More importantly, the terminal low-spin (S = 0) iron(II) sites possessing a N4S2 first coordination environment, along with the synergetic catalysis of ligands, play a crucial role in the catalytic process. This research highlights the unconventional applications of iron-sulfur clusters in electrocatalytic water oxidation and underlines a promising avenue for developing innovative catalysts.</p>","PeriodicalId":149,"journal":{"name":"ChemSusChem","volume":" ","pages":"e2500812"},"PeriodicalIF":7.5,"publicationDate":"2025-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144697212","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
3-(Aminomethyl)piperidinium Spacer-Induced Dion-Jacobson 2D Perovskite Beneath CsPbI3 for Stable and Efficient Inorganic Perovskite Solar Cells. CsPbI3下3-(氨基甲基)胡椒啶间隔层诱导Dion-Jacobson 2D钙钛矿制备稳定高效的无机钙钛矿太阳能电池。
IF 7.5 2区 化学
ChemSusChem Pub Date : 2025-07-21 DOI: 10.1002/cssc.202501062
Sohyun Kang, Seungmin Lee, Oui Jin Oh, Dong Hyun Kim, Chan Young Kim, Sung Yong Kim, Hyojin Hong, Jeong Hyeon Park, Jun Hong Noh
{"title":"3-(Aminomethyl)piperidinium Spacer-Induced Dion-Jacobson 2D Perovskite Beneath CsPbI<sub>3</sub> for Stable and Efficient Inorganic Perovskite Solar Cells.","authors":"Sohyun Kang, Seungmin Lee, Oui Jin Oh, Dong Hyun Kim, Chan Young Kim, Sung Yong Kim, Hyojin Hong, Jeong Hyeon Park, Jun Hong Noh","doi":"10.1002/cssc.202501062","DOIUrl":"https://doi.org/10.1002/cssc.202501062","url":null,"abstract":"<p><p>For the inorganic perovskite CsPbI<sub>3</sub>, while many strategies have focused on passivating the top surface, engineering the interface beneath the perovskite layer remains a critical yet underexplored avenue, primarily due to the high crystallization temperature and the dissolution of underlying layers during solution processing. Here, these longstanding challenges are addressed by introducing a strategic placement of a Dion-Jacobson quasi-2D perovskite layer beneath CsPbI<sub>3</sub>. Specifically, 3-(aminomethyl)piperidinium iodide (3AMPI<sub>2</sub>), an organic salt insoluble in the CsPbI<sub>3</sub> precursor solution, is employed to form a robust quasi-2D interlayer without degradation during perovskite deposition and annealing. This bottom-layer integration passivates interfacial defects, promotes favorable crystallization of CsPbI<sub>3</sub>, and results in significantly enhanced device performance, achieving a power conversion efficiency of 20.98%, an open-circuit voltage (V<sub>oc</sub>) of 1.21 V, a short-circuit current density (J<sub>sc</sub>) of 20.59 mAcm<sup>-2</sup>, and a fill factor of 84.21%, along with robust long-term operational stability. The findings demonstrate a targeted interfacial design approach that unlocks new opportunities for simultaneously optimizing efficiency and stability in inorganic perovskite photovoltaics.</p>","PeriodicalId":149,"journal":{"name":"ChemSusChem","volume":" ","pages":"e2501062"},"PeriodicalIF":7.5,"publicationDate":"2025-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144673485","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Rational Design and Electrochemical Mechanism of High-Capacity Quadruple Layered Oxide Cathode Materials for Rechargeable Sodium-Ion Batteries. 可充电钠离子电池高容量四层氧化物正极材料的合理设计及其电化学机理。
IF 7.5 2区 化学
ChemSusChem Pub Date : 2025-07-21 DOI: 10.1002/cssc.202500567
Yangyang Zhang, Meijing Wang, Yu Bai, Wenhua Fu, Xingde Xiang
{"title":"Rational Design and Electrochemical Mechanism of High-Capacity Quadruple Layered Oxide Cathode Materials for Rechargeable Sodium-Ion Batteries.","authors":"Yangyang Zhang, Meijing Wang, Yu Bai, Wenhua Fu, Xingde Xiang","doi":"10.1002/cssc.202500567","DOIUrl":"https://doi.org/10.1002/cssc.202500567","url":null,"abstract":"<p><p>O3-type layered oxides are strongly considered as a promising cathode material for rechargeable sodium-ion batteries due to the high theoretical capacity and low-cost raw materials, but are challenged by poor electrochemical performance over Na extraction above 4.0 V. Herein, a novel quadruple layered oxide is rationally designed by regulating Fe doping in the representative NaNi<sub>0.5</sub>Ti<sub>0.25</sub>Mn<sub>0.25</sub>O<sub>2</sub> composition, and influence of Fe doping on structure and electrochemistry of the NaNi<sub>0.5-x/2</sub>Ti<sub>0.25-x/2</sub>Fe<sub>x</sub>Mn<sub>0.25</sub>O<sub>2</sub> (0 ≤ x ≤ 0.30) material is systematically investigated with X-ray diffraction (XRD), transmission electron microscope, cyclic voltammetry, and galvanostatic measurement. It is found that the favorable quadruple structure enables the optimized NaNi<sub>0.45</sub>Ti<sub>0.2</sub>Fe<sub>0.1</sub>Mn<sub>0.25</sub>O<sub>2</sub> material to show superior electrochemical performance with a large practical capacity of 157 mAh g<sup>-1</sup> at 10 mA g<sup>-1</sup> and a high-capacity retention of 81% after 100 cycles at 100 mA g<sup>-1</sup>. Furthermore, the phase transitions and redox reactions are analyzed by using ex situ XRD and X-ray photoelectron spectroscopy. In addition, the cycling degradation of the materials during cycling is understood with dQ/dV curves and XRD technique. The results in this study indicate the effectiveness of the dual-cationic substitution strategy in designing high-performance layered oxides cathode, and suggest significant impact of cationic migration on their capacity degradation and voltage hysteresis during cycling.</p>","PeriodicalId":149,"journal":{"name":"ChemSusChem","volume":" ","pages":"e2500567"},"PeriodicalIF":7.5,"publicationDate":"2025-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144673487","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
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