IF 13.3 2区材料科学

Small Pub Date : 2025-10-07 DOI: 10.1002/smll.202506343

Ankit Kumar Chourasia, Keerti M. Naik, Chandra S. Sharma

{"title":"Medium‐Entropy Alloy/In Situ N‐doped rGO Catalyst Composite for Ultrahigh Discharge Capacity and High‐Rate Cyclability in Li─CO2Mars Batteries","authors":"Ankit Kumar Chourasia, Keerti M. Naik, Chandra S. Sharma","doi":"10.1002/smll.202506343","DOIUrl":"https://doi.org/10.1002/smll.202506343","url":null,"abstract":"The immense potential of Li─CO2 batteries in mitigating CO2 emissions makes them an attractive choice for developing next‐generation high‐energy‐density alternative energy storage systems. However, insufficient Li2CO3 decomposition during recharging deactivates the catalyst, reducing the dischargeability and cycle life. Herein, a medium‐entropy quaternary alloy (QA) catalyst comprising of the metals Mn, Zn, Co, and Ni is designed with in situ N‐doped reduced graphene oxide (NrGO) using a multielement metal organic framework (MZIF) (QA@NrGO). The uniformly dispersed quaternary alloy with high disorder and the synergy between the NrGO and QA help Li─CO2Mars batteries deliver an ultrahigh discharge capacity of 50605 mAh g−1 at the high current density of 500 mA g−1 and a maximum cycle life of 240 cycles. Ex situ post‐cycling physicochemical investigations reveal the formation of disc‐shaped Li2CO3 discharge product on the active sites and nearly complete decomposition on charging, confirming the excellent reversibility. Further, the density functional theory (DFT) studies show that improved CO2 adsorption and the tendency toward relatively stable formation of the discharge products of Li2CO3 and amorphous carbon helped achieve the excellent electrochemical performance. The designed medium entropy alloy (MEA) catalyst provides a pathway for developing low‐cost, highly active bifunctional catalysts for Li─CO2Mars batteries.","PeriodicalId":228,"journal":{"name":"Small","volume":"70 1","pages":""},"PeriodicalIF":13.3,"publicationDate":"2025-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145235439","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Interfacial Electrostatic Engineering for Chlorine Ions Blocking Toward Long‐Lasting Alkaline Seawater Oxidation 氯离子阻滞对碱性海水持久氧化的界面静电工程

IF 13.3 2区材料科学

Small Pub Date : 2025-10-07 DOI: 10.1002/smll.202509149

Yafeng Guan, Haolin Lu, Lipeng Zhao, Shengli Zhu, Zhenduo Cui, Zhaoyang Li, Wence Xu, Zhonghui Gao, Te Ba, Yanqin Liang, Guankui Long, Hui Jiang

{"title":"Interfacial Electrostatic Engineering for Chlorine Ions Blocking Toward Long‐Lasting Alkaline Seawater Oxidation","authors":"Yafeng Guan, Haolin Lu, Lipeng Zhao, Shengli Zhu, Zhenduo Cui, Zhaoyang Li, Wence Xu, Zhonghui Gao, Te Ba, Yanqin Liang, Guankui Long, Hui Jiang","doi":"10.1002/smll.202509149","DOIUrl":"https://doi.org/10.1002/smll.202509149","url":null,"abstract":"The existence of Cl− in seawater electrolysis weakens the selectivity of the oxygen evolution reaction (OER) via the chlorine evolution reaction (CER) and causes material failure by chlorine pitting. Introducing anion layers not only repels the transition of Cl− without retarding the diffusion of oxygen‐containing anions but also can be generated in situ on the outer surface. Here, a hierarchical catalyst consisting of a MnO2 layer formed on a Ni foam substrate covered uniformly by a nickel‐iron layered double hydroxide (NiFe‐LDH) active layer is developed through interfacial electrostatic engineering. It was found that the introduced Lewis acid layer (MnO2) can spontaneously generate OH− groups on the outer surface in situ to repel Cl− by electrostatic repulsion force. Meanwhile, Ni‐active sites anchored inside the MnO2 matrix can improve the low activity of MnO2. The multilayer NiFe‐LDH@MnO2/NF anode can operate steadily at the current density of 100 mA cm−2 at 70 °C for 100 h and maintain 97.9% OER selectivity. Furthermore, the OER overpotential was reduced by 136 mV, superior to the state‐of‐the‐art commercial Ni mesh in industrial environments, especially the device can be powered by wind energy. The work offers an efficient strategy for designing high‐performance seawater electrolysis with low cost and high stability.","PeriodicalId":228,"journal":{"name":"Small","volume":"49 1","pages":""},"PeriodicalIF":13.3,"publicationDate":"2025-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145235445","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Ultra‐Stable Luminescent Smart Textiles Embedded With Thermally Responsive Copper Iodide Clusters 嵌入热响应性碘化铜簇的超稳定发光智能纺织品

IF 13.3 2区材料科学

Small Pub Date : 2025-10-07 DOI: 10.1002/smll.202508255

Qi Chen, Liang Chen, Bing Zhu, Yilin Wu, Hao Jia, Chun‐Yu Liu

{"title":"Ultra‐Stable Luminescent Smart Textiles Embedded With Thermally Responsive Copper Iodide Clusters","authors":"Qi Chen, Liang Chen, Bing Zhu, Yilin Wu, Hao Jia, Chun‐Yu Liu","doi":"10.1002/smll.202508255","DOIUrl":"https://doi.org/10.1002/smll.202508255","url":null,"abstract":"Copper iodide clusters have emerged as a promising candidate for flexible optoelectronic devices due to their structural versatility and exceptional photoluminescence (PL) properties, yet their practical application is hindered by insufficient mechanical fragility and environmental stability. Herein, a scalable wet‐spinning strategy is presented to fabricate ultrastable Cu4I4(L)4@CA fibers (L1 = 4‐benzylpyridine; L2 = 4‐tert‐butylpyridine; CA = calcium alginate). The molecular encapsulation preserves high photoluminescence quantum yields (PLQYs >85%) at an ultralow 1 wt% doping while enabling fully reversible thermochromic switching: white to yellow (L1) and blue–purple to orange (L2) transitions across 80–300 K. The fibers demonstrate textile‐grade flexibility and ultrahigh environmental stability (>98% PL retention under humidity/UV/solvents). Leveraging these properties, a dual‐authentication encryption platform is pioneered featuring triple‐state information switching (ambient, UV, and cryogenic states) and DNA‐inspired binary photonic encoding using programmable Y‐/cross‐shaped spinnerets for data transcription. By harmonizing stimuli‐responsive optoelectronics with textile processability, this work establishes a synergistic material platform for next‐generation secure wearables, stealth luminescent textiles, and hierarchical anti‐counterfeiting systems.","PeriodicalId":228,"journal":{"name":"Small","volume":"123 1","pages":""},"PeriodicalIF":13.3,"publicationDate":"2025-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145235507","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Jellyfish-Head Core-Shell Structured Hydrogel Evaporator with Low Enthalpy and Excellent Salt-Resistance for Highly Efficient Solar Desalination 海蜇头核壳结构水凝胶蒸发器，具有低焓和优异的耐盐性，用于高效太阳能海水淡化

IF 13.3 2区材料科学

Small Pub Date : 2025-10-07 DOI: 10.1002/smll.202507650

Cheng Xue, Cong Qi, Wenzhu Li

{"title":"Jellyfish-Head Core-Shell Structured Hydrogel Evaporator with Low Enthalpy and Excellent Salt-Resistance for Highly Efficient Solar Desalination","authors":"Cheng Xue, Cong Qi, Wenzhu Li","doi":"10.1002/smll.202507650","DOIUrl":"https://doi.org/10.1002/smll.202507650","url":null,"abstract":"Solar-driven interfacial water evaporation is a promising technology for seawater desalination and wastewater treatment, offering an effective solution to the global freshwater shortage. However, traditional solar evaporators often suffer from low evaporation rates due to limitations imposed by the theoretical evaporation enthalpy. In recent years, hydrogel-based evaporators have shown great potential in enhancing evaporation performance due to their ability to regulate water states and reduce evaporation enthalpy. In this study, a multi-network PAM/CMC/PVA/rGO-Fe3O4 hydrogel with a jellyfish-inspired core-shell structure is fabricated via a simple free-radical polymerization and physical crosslinking method, where PVA serves as a flexible outer shell and PAM/CMC form the internal scaffold. By tuning the PVA content, the ratio of intermediate water to free water in the hydrogel system is optimized, achieving a high ratio of 1.60, which effectively reduces the evaporation enthalpy. Under 1 kW·m−2 (1 Sun) irradiation, the high evaporation rate of the hydrogel evaporator is as high as 1.90 kg·m−2·h−1. In practical seawater desalination tests, it still maintains an excellent rate of 1.82 kg·m−2·h−1, indicating strong performance retention. Moreover, the material shows no significant salt accumulation under high-salinity conditions and also exhibits excellent performance in wastewater treatment, highlighting its great potential for application in complex water purification scenarios.","PeriodicalId":228,"journal":{"name":"Small","volume":"18 1","pages":""},"PeriodicalIF":13.3,"publicationDate":"2025-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145235410","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Quinone-Imine Enhanced PVA Binder: A Universal Strategy for High-Loading Electrodes With Low Binder Content in Li/Na-Ion Batteries 醌-亚胺增强PVA粘结剂：Li/ na离子电池中低粘结剂含量高负载电极的通用策略

IF 13.3 2区材料科学

Small Pub Date : 2025-10-07 DOI: 10.1002/smll.202506857

Shaowen Dong, Li Wang, Xuewei He, Jie Liang, Xiangming He

{"title":"Quinone-Imine Enhanced PVA Binder: A Universal Strategy for High-Loading Electrodes With Low Binder Content in Li/Na-Ion Batteries","authors":"Shaowen Dong, Li Wang, Xuewei He, Jie Liang, Xiangming He","doi":"10.1002/smll.202506857","DOIUrl":"https://doi.org/10.1002/smll.202506857","url":null,"abstract":"Phosphorus/carbon (P/C) composites are promising high-capacity anode materials for lithium/sodium-ion batteries due to their high specific capacity, good rate performance, and electrochemical reversibility, coupled with low material cost. However, large volume changes during cycling, especially at high active material loading, hinder performance. This study introduces a novel polymer binder system composed of polyvinyl alcohol (PVA) and benzoquinone imine (BQI), crosslinked through a network of abundant intermolecular hydrogen bonds. This binder exhibits superior dynamic viscoelasticity, effectively accommodating the significant surface area variations and relative movement of active material particles during cycling. The strong adhesion ensures robust bonding between all electrode components, including the current collector. PVA contributes inherent flexibility and elasticity, while BQI enhances tensile strength and modulus, improves ionic conductivity, and promotes better wettability with conductive carbon for a more uniform distribution within the electrode. A P/C electrode prepared with 5 wt% binder loading, exhibiting an areal capacity of 10.20 mAh cm−2, demonstrates a capacity retention of 71.26% after 60 cycles–significantly surpassing other binder-based P/C anodes. This advance promotes the practical application of phosphorus-based anodes.","PeriodicalId":228,"journal":{"name":"Small","volume":"81 1","pages":""},"PeriodicalIF":13.3,"publicationDate":"2025-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145235434","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Synergistic Signal Amplification by Cu2O‐Au/Ag Nanozyme in Heterojunction Photoanode for High‐Sensitivity Photoelectrochemical Detection of Cyfra21‐1 Cu2O - Au/Ag纳米酶在异质结光阳极上的协同信号放大用于Cyfra21‐1的高灵敏度光电化学检测

IF 13.3 2区材料科学

Small Pub Date : 2025-10-07 DOI: 10.1002/smll.202502779

Yuxiang Dong, Cheng Guo, Rui Zheng, Jialin Wang, Qi Feng, Shuoran Chen, Changqing Ye

{"title":"Synergistic Signal Amplification by Cu2O‐Au/Ag Nanozyme in Heterojunction Photoanode for High‐Sensitivity Photoelectrochemical Detection of Cyfra21‐1","authors":"Yuxiang Dong, Cheng Guo, Rui Zheng, Jialin Wang, Qi Feng, Shuoran Chen, Changqing Ye","doi":"10.1002/smll.202502779","DOIUrl":"https://doi.org/10.1002/smll.202502779","url":null,"abstract":"Sensitive photoelectrochemical (PEC) analysis relies on high‐efficiency signaling strategies. Here, a hollow Cu2O‐Au/Ag nanozyme is developed to realize synergetic signal amplification on a MoS2@ZnIn2S4 heterojunction‐based PEC platform for Cyfra21‐1 detection. The MoS2@ZnIn2S4 photoelectrode exhibited excellent photoactivity due to the formation of directional built‐in electric fields, providing an additional driving force to enhance the rapid transfer of photo‐induced electrons. To further improve the sensitivity of the immunosensor, a multifunctional Cu2O‐Au/Ag nanozyme probe is designed. It amplifies the photocurrent signal through three different mechanisms: the intrinsic enzyme‐like activity of the probe, the localized surface plasmon resonance effect from Au/Ag nanoparticles, and the p‐type Cu2O‐driven coreactant scavenging. These properties work synergistically to enable catalytic deposition amplification, competitive light absorption, and coreactant consumption with photoactive substrate, ultimately leading to significant improvement in sensor performance. The proposed platform demonstrated high sensitivity (0.0360 pg mL−1), a broad linear range (0.100 pg mL−1 to 50.0 ng mL−1), as well as satisfactory stability and repeatability. This study presents an effective signaling strategy for achieving sensitive bioanalysis through nanozyme‐induced synergistic signal amplification.","PeriodicalId":228,"journal":{"name":"Small","volume":"24 1","pages":""},"PeriodicalIF":13.3,"publicationDate":"2025-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145235441","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Role of the Anion Insertion-Extraction Reaction in Amorphous Carbon Thin Film Electrodes on the Vanadium(IV/V) Reaction Probed by Scanning Electrochemical Cell Microscopy 扫描电化学电池显微镜观察非晶碳薄膜电极阴离子插入-萃取反应对钒（IV/V）反应的影响

IF 13.3 2区材料科学

Small Pub Date : 2025-10-07 DOI: 10.1002/smll.202507044

Maximilian Hamann, Jens Carthäuser, Diana Rata, Nico Remmler, Michael Bron, Matthias Steimecke

{"title":"The Role of the Anion Insertion-Extraction Reaction in Amorphous Carbon Thin Film Electrodes on the Vanadium(IV/V) Reaction Probed by Scanning Electrochemical Cell Microscopy","authors":"Maximilian Hamann, Jens Carthäuser, Diana Rata, Nico Remmler, Michael Bron, Matthias Steimecke","doi":"10.1002/smll.202507044","DOIUrl":"https://doi.org/10.1002/smll.202507044","url":null,"abstract":"The influence of high potentials on amorphous nitrogen-free and nitrogen-doped hydrogenated carbon thin film electrodes with thicknesses of 9 to 30 nm is probed toward the vanadium(IV/V) redox reaction by scanning electrochemical cell microscopy (SECCM), which mimics the reaction of the positive side of the all-vanadium redox flow battery (VRFB). Besides the evaluation of the peak separation (EPP) from cyclic voltammograms (CV), the localized probing is adapted in a way that the influence of high overpotentials on the stability of the carbon materials, as well as competitive electrochemical processes, can be analyzed. The sulfate anion insertion process is found to be the predominant process in all samples, with its onset appearing in parallel to the vanadium(IV/V) reaction. The presence of pyridine/pyrrole groups can stabilize the insertion compound, which inhibits the vanadium(IV/V) reaction much more strongly. In all cases, the electrochemical redox features of the vanadium(IV/V) reaction, as well as the initial Raman spectra of the carbon thin films, are fully reconstructed by applying reductive potentials in a suitable time frame, even after polarizing to drastically high potentials (2.5 V vs. RHE). Overall, this competing insertion reaction must be given greater consideration when discussing electrochemical data of the vanadium(IV/V) redox reaction.","PeriodicalId":228,"journal":{"name":"Small","volume":"108 1","pages":""},"PeriodicalIF":13.3,"publicationDate":"2025-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145235413","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Exploring Sustainable Hydrogen Production from Alkaline Fresh and Seawater Using Natural Ore Derived 2D Bi2S3 探索利用天然矿石衍生的2D Bi2S3从碱性淡水和海水中可持续制氢

IF 13.3 2区材料科学

Small Pub Date : 2025-10-07 DOI: 10.1002/smll.202509283

Shreyasi Chattopadhyay, Caique Campos de Oliveira, Rajarshi Bhar, Dhiman Banik, Tymofii S. Pieshkov, Anand B. Puthirath, Atin Pramanik, P R Sreeram, Sreehari K Saju, Gelu Costin, Robert Vajtai, Brajesh K Dubey, Krishanu Biswas, Pedro Alves da Silva Autreto, Chandra Sekhar Tiwary, Pulickel M. Ajayan

{"title":"Exploring Sustainable Hydrogen Production from Alkaline Fresh and Seawater Using Natural Ore Derived 2D Bi2S3","authors":"Shreyasi Chattopadhyay, Caique Campos de Oliveira, Rajarshi Bhar, Dhiman Banik, Tymofii S. Pieshkov, Anand B. Puthirath, Atin Pramanik, P R Sreeram, Sreehari K Saju, Gelu Costin, Robert Vajtai, Brajesh K Dubey, Krishanu Biswas, Pedro Alves da Silva Autreto, Chandra Sekhar Tiwary, Pulickel M. Ajayan","doi":"10.1002/smll.202509283","DOIUrl":"https://doi.org/10.1002/smll.202509283","url":null,"abstract":"Water electrolysis for hydrogen, though widely studied, presents exciting opportunities for improvement beyond conventional energy and cost‐intensive catalysts. Natural ores, being abundant and readily available, hold immense promise as sustainable sources of alternative energy materials. Here, this method offers a simple and low‐cost route, not only to make 2D materials but also to develop electrocatalysts from earth‐abundant ores. Synthesis of 2D Bi2S3 is demonstrated via Liquid phase exfoliation (LPE) of the naturally abundant bismuthinite ore. Sustainability of such 2D Bi2S3 is explored for hydrogen evolution reaction (HER) from alkaline fresh and simulated seawater. The exfoliated Bi2S3 exhibits an overpotential of 693 and 678 mV at 10 mA cm‐2 in alkaline fresh and simulated seawater with a durability up to 40 h. From Density Functional Theory (DFT) based First‐principles calculations, sulfur sites are found to bind H‐intermediates strongly in comparison with bismuth sites. Sustainability is further investigated by life cycle calculation. A lower carbon footprint of the 2D Bi2S3 catalyst is observed under both alkaline fresh (21.13 kg CO2eq kg−1 H2) and simulated seawater (15.56 kg CO2eq kg−1 H2). This work extends a sustainable strategy to utilize earth‐abundant natural source for fabricating efficient and durable HER electrocatalysts for future fuel.","PeriodicalId":228,"journal":{"name":"Small","volume":"158 1","pages":""},"PeriodicalIF":13.3,"publicationDate":"2025-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145235438","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Zwitterionic Supramolecular Nanoassemblies With siRNA and Simvastatin as “Nanoscavenger” for Synergistic Atherosclerosis Treatment 带有siRNA和辛伐他汀的两性离子超分子纳米组件协同治疗动脉粥样硬化

IF 13.3 2区材料科学

Small Pub Date : 2025-10-07 DOI: 10.1002/smll.202506957

Weihong Ji, Weichen Shao, Xing Ye, Ranjith Kumar Kankala, Aizheng Chen, Xin Zhang

{"title":"Zwitterionic Supramolecular Nanoassemblies With siRNA and Simvastatin as “Nanoscavenger” for Synergistic Atherosclerosis Treatment","authors":"Weihong Ji, Weichen Shao, Xing Ye, Ranjith Kumar Kankala, Aizheng Chen, Xin Zhang","doi":"10.1002/smll.202506957","DOIUrl":"https://doi.org/10.1002/smll.202506957","url":null,"abstract":"Atherosclerotic vulnerable plaques contain various undesirable components, including excess cholesterol, efferocytosis‐deficient macrophages, and inflammatory factors. However, conventional lipid‐lowering drugs often show limited efficacy due to their inability to target the complex pathophysiology. Herein, innovative zwitterionic supramolecular nanoassemblies, termed PCDSC‐S2P, are developed as the nanoscavenger to reduce and stabilize plaques. The nanoassemblies are based on zwitterionic poly(carboxybetaine)‐modified β‐cyclodextrin (β‐CD) acting as a host molecule that encapsulates simvastatin (Sim) as a guest and absorbs small interfering RNA targeting calcium/calmodulin‐dependent protein kinase II gamma (siCaMKIIγ) electrostatically. The PCDSC‐S2P nanoassemblies are driven by host‐guest interactions, electrostatic interactions, and hydrogen bonds. Moreover, the macrophage‐targeting peptide modification directs nanoassemblies accumulation toward atherosclerotic plaques. Therefore, PCDSC‐S2P, as the nanoscavenger, can act at the lesional plaque via β‐CD‐mediated cholesterol removal, Sim‐driven lipid lowering, and siCaMKIIγ‐enhanced efferocytosis synergistically. Consequently, the PCDSC‐S2P treatment regulates the release of inflammatory cytokines and exhibits anti‐inflammatory activity. Furthermore, PCDSC‐S2P can significantly reduce plaque area and stabilize plaques in apolipoprotein E‐deficient mice fed with a high‐fat diet. Together, PCDSC‐S2P shows great potential as a new delivery system in the development of small interfering RNA formulation, showing its promise for atherosclerosis treatment.","PeriodicalId":228,"journal":{"name":"Small","volume":"8 1","pages":""},"PeriodicalIF":13.3,"publicationDate":"2025-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145235448","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Enhanced Sodium Polysulfide Adsorption by In Situ Construction of NiS2/Cu2S Heterointerfaces and Sulfur Vacancies Enabling High‐Performance Sodium Storage 原位构建NiS2/Cu2S异质界面和硫空位增强多硫化钠吸附，实现高性能钠储存

IF 13.3 2区材料科学

Small Pub Date : 2025-10-07 DOI: 10.1002/smll.202507142

Bohan Zhang, Yiwei Yao, Meng Qin, Chi Chen, Jun Yan, Jieshan Qiu

{"title":"Enhanced Sodium Polysulfide Adsorption by In Situ Construction of NiS2/Cu2S Heterointerfaces and Sulfur Vacancies Enabling High‐Performance Sodium Storage","authors":"Bohan Zhang, Yiwei Yao, Meng Qin, Chi Chen, Jun Yan, Jieshan Qiu","doi":"10.1002/smll.202507142","DOIUrl":"https://doi.org/10.1002/smll.202507142","url":null,"abstract":"Nickel disulfides have been actively investigated as sodium‐ion battery anode materials because of their relatively high capacity and relatively low cost. However, their practical application is severely hindered by overcharge failure in ether‐based electrolytes induced by the dissolution of sodium polysulfides. Herein, sulfur vacancy‐rich NiS2/Cu2S heterojunction nanoclusters anchored on Ti3C2Tx MXene nanosheets (NCMX) are synthesized through a facile solvothermal method. Density functional theory calculation combined with ex situ characterizations illustrates that sulfur vacancies significantly enhance the adsorption of sodium polysulfides, while the heterointerface‐induced built‐in electric field facilitates rapid Na⁺ adsorption and accordingly accelerates their efficient conversion to Na2S. The synergistic effects endow the NCMX anode with exceptional sodium‐ion storage performances. It delivers remarkable reversible capacity (668 mAh g−1 at 0.1 A g−1), superb rate capability (482 mAh g−1 at 5 A g−1), and impressive cycling stability (543 mAh g−1 after 1000 cycles at 1 A g−1 with a negligible capacity decay of 0.0034% per cycle). Such a strategy of simultaneous construction of heterojunction and sulfur vacancies paves a new avenue to tackle the polysulfide shuttling to design advanced high‐performance transition metal disulfide anodes for sodium‐ion storage.","PeriodicalId":228,"journal":{"name":"Small","volume":"81 1","pages":""},"PeriodicalIF":13.3,"publicationDate":"2025-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145235534","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","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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