Small最新文献 - Book学术

Facet‐Programmed Oxide Nanointerfaces for Metabolite Activation and AI‐Assisted Disease Screening 用于代谢物激活和人工智能辅助疾病筛选的Facet编程氧化物纳米界面

IF 13.3 2区材料科学

Small Pub Date : 2026-10-19 DOI: 10.1002/smll.76193

Shaoxuan Shui, Yujia Jiang, Juan Zhou, Haoyu Qiu, Jianhua Lu, Fang Lan, Binwu Ying, Yao Wu

{"title":"Facet‐Programmed Oxide Nanointerfaces for Metabolite Activation and AI‐Assisted Disease Screening","authors":"Shaoxuan Shui, Yujia Jiang, Juan Zhou, Haoyu Qiu, Jianhua Lu, Fang Lan, Binwu Ying, Yao Wu","doi":"10.1002/smll.76193","DOIUrl":"https://doi.org/10.1002/smll.76193","url":null,"abstract":"Metal oxides are important nanocatalytic materials for small‐molecule activation, owing to their variable valence states and efficient charge‐transfer capabilities. This activation is governed by coupled oxide–molecule interfacial processes, for which conventional descriptors such as morphology, composition, and defects remain insufficiently precise. Here, we establish crystal facets as descriptors for oxide surface regulation and use laser desorption/ionization mass spectrometry (LDI‐MS) as a high‐throughput readout of metabolite activation. Across CeO 2 , Co 3 O 4 , and Cu 2 O, exposed facets strongly regulate metabolite desorption/ionization, with the (110) facet consistently exhibiting superior activity. Mechanistic studies and density functional theory calculations reveal that facet exposure modulates surface valence states, oxygen‐vacancy formation, charge transfer, carrier dynamics, and energy dissipation. In particular, (110) CeO 2 integrates favorable defect structures, low work function, efficient charge separation, and localized energy confinement, enabling enhanced metabolite activation with up to three orders of magnitude signal improvement, high reproducibility, and salt/protein tolerance. The optimized (110) CeO 2 matrix enables serum metabolic fingerprinting for AI‐assisted discrimination of hepatocellular carcinoma from chronic liver disease and biomarker identification. This work demonstrates facet engineering as a strategy for designing oxide nanointerfaces that translate molecular activation into chemically informative fingerprints for disease screening.","PeriodicalId":228,"journal":{"name":"Small","volume":"163 1","pages":""},"PeriodicalIF":13.3,"publicationDate":"2026-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149218622","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

Honeycomb‐Like N, P‐Codoped Carbon Derived From Waste Poplar Wood as a High‐Performance Air Cathode for Rechargeable Zn‐Air Batteries 从废杨木中提取的蜂窝状N， P共掺杂碳作为可充电锌空气电池的高性能空气阴极

IF 13.3 2区材料科学

Small Pub Date : 2026-10-19 DOI: 10.1002/smll.76341

Luyao Zhang, Hongjiao Chen, Xiangyu Wang, Jiaqi Cong, Zhixin Xue, Yan Wu, Bin Hui

{"title":"Honeycomb‐Like N, P‐Codoped Carbon Derived From Waste Poplar Wood as a High‐Performance Air Cathode for Rechargeable Zn‐Air Batteries","authors":"Luyao Zhang, Hongjiao Chen, Xiangyu Wang, Jiaqi Cong, Zhixin Xue, Yan Wu, Bin Hui","doi":"10.1002/smll.76341","DOIUrl":"https://doi.org/10.1002/smll.76341","url":null,"abstract":"The sluggish kinetics of the oxygen reduction reaction (ORR) at the cathode hinder the development of zinc‐air batteries (ZABs). Herein, a nitrogen and phosphorus dual‐doped honeycomb‐like carbon (K‐NPCW‐900) derived from waste wood is fabricated to boost oxygen activation efficiency and enhance ZABs performance. Potassium hydroxide‐assisted high‐temperature pyrolysis converted poplar wood into a three‐dimensional honeycomb‐like carbon architecture with high microporosity and large specific surface area, exposing active sites and facilitating mass transport. Density functional theory reveals that asymmetric N─C─P sites inject more electrons than N─C into the O 2 antibonding orbitals, elongating O─O bond to 1.53 Å, facilitating O 2 activation. These sites optimize oxygen‐intermediate adsorption, shifting the rate‐determining step from * OOH on N─C to * O reduction. K‐NPCW‐900 exhibits a high half‐wave potential of 0.835 V, indicating favorable electrocatalytic performance. The K‐NPCW‐900‐assembled ZABs deliver a high specific capacity of 797.12 mAh g −1 and stable cycling for 550 h at room temperature. Impressively, the ZABs retain robust cycling at elevated temperatures of 40°C and 60°C, achieving peak power densities of 180.62 and 265.93 mW cm −2 . This work demonstrates a compositional and structural engineering strategy to convert waste woody biomass into value‐added carbon electrodes, facilitating sustainable ZABs development.","PeriodicalId":228,"journal":{"name":"Small","volume":"29 1","pages":""},"PeriodicalIF":13.3,"publicationDate":"2026-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149218623","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

Triboelectric Nanogenerator Based on All‐Cellulose Triboelectric Layer for Droplet Energy Harvesting and Self‐Powered Agriculture Monitoring 基于全纤维素摩擦电层的摩擦电纳米发电机用于液滴能量收集和自供电农业监测

IF 13.3 2区材料科学

Small Pub Date : 2026-10-19 DOI: 10.1002/smll.76354

Hengwei Xiong, Qiaonan Yang, Weijie Li, Kangwen Shi, Xinyan Sun, Wenpeng Fan, Youqiang Zhang

{"title":"Triboelectric Nanogenerator Based on All‐Cellulose Triboelectric Layer for Droplet Energy Harvesting and Self‐Powered Agriculture Monitoring","authors":"Hengwei Xiong, Qiaonan Yang, Weijie Li, Kangwen Shi, Xinyan Sun, Wenpeng Fan, Youqiang Zhang","doi":"10.1002/smll.76354","DOIUrl":"https://doi.org/10.1002/smll.76354","url":null,"abstract":"Cellulose‐based triboelectric nanogenerators (TENGs) attract increasing attention; however, developing high‐performance all‐cellulose‐based triboelectric layer TENGs remains challenging. In this study, a regenerated cellulose nanofiber film (R‐CNF) is used as a substrate, and an aminosilane intermediate layer is introduced. By utilizing the silanol groups on the silane chains as compatible reactive sites for fluorination grafting, and simultaneously enhancing the bonding strength between modified layers through N–H···F–C hydrogen‐bond interactions between amino and fluorine groups, a fluorinated regenerated cellulose nanofiber film (F‐R‐CNF) is successfully prepared. The degradation rate of F‐R‐CNF within 13 days is approximately 0.96%. When assembled into a TENG with an ethyl cellulose nanofiber film(ECNF), the output voltage of the resulting TENG is ten times higher than that of the R‐CNF‐based TENGs, while maintaining 85% of its output performance at 80% relative humidity. Furthermore, a droplet energy harvesting TENG (DE‐TENG) is constructed to harvest energy from falling water droplets, demonstrating the potential of the DE‐TENG to power agricultural micro‐sensors. This study provides a feasible strategy for designing high‐performance all‐cellulose‐based triboelectric layer triboelectric nanogenerators and reveals the great potential of F‐R‐CNF for self‐powered devices and smart agriculture applications.","PeriodicalId":228,"journal":{"name":"Small","volume":"56 1","pages":""},"PeriodicalIF":13.3,"publicationDate":"2026-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149218624","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

Stretching Training of Microgel‐Reinforced Composite Hydrogel for Tunable Strain‐Stiffening Property 微凝胶增强复合水凝胶应变强化性能可调的拉伸训练

IF 13.3 2区材料科学

Small Pub Date : 2026-10-18 DOI: 10.1002/smll.76284

Longhui Li, Liwei Wu, Guodong Zhang, Lan Liu, Yuke Zhang, Jie Zhang, Lingling Zhang, Jie Ju, Xi Yao

{"title":"Stretching Training of Microgel‐Reinforced Composite Hydrogel for Tunable Strain‐Stiffening Property","authors":"Longhui Li, Liwei Wu, Guodong Zhang, Lan Liu, Yuke Zhang, Jie Zhang, Lingling Zhang, Jie Ju, Xi Yao","doi":"10.1002/smll.76284","DOIUrl":"https://doi.org/10.1002/smll.76284","url":null,"abstract":"Achieving tunable strain‐stiffening in tough hydrogels via muscle‐mimicking training remains a key challenge for nonlinear biomimetic mechanics. Microgel‐reinforced composite hydrogels (MR‐gels), combine rigid polyelectrolyte microspheres with a soft polyacrylamide matrix, offering an ideal platform for programming strain‐stiffening behavior via hierarchical microsphere fracture. Here, we report that physical training controlling stretching amplitude and number of repetitions enables stable and tunable strain‐stiffening in MR‐gels. Unlike conventional expectations, a single stretch is insufficient, training equilibrium requires approximately 300 cycles. The resulting MR‐gel exhibit stable and broadly tunable soft‐to‐stiff transition (0.4–3.1), strain‐stiffening capacity (3.1–17.8), and modulus of the soft (240 to 40 kPa) and stiff (814 to 713 kPa) regimes, matching the nonlinear mechanics of diverse biological mechanicals. Mechanistically, the training mode achieves tunable strain‐stiffening by controlling the degree of microgel fracture and entangled polymer chain sliding. At equilibrium, fragmented microgels form an interconnected string‐like network via topological entanglements and covalent crosslinks, raising the fatigue threshold from 689.6 to 1269.8 J/m 2 . Furthermore, the trained MR‐gel enables full envelopment of a high‐speed falling iron ball for effective deceleration and superior impact cushioning. This work establishes a versatile strategy for programming mechanical behavior in soft materials, with broad implications for soft robotics, wearable electronics, and biomedicine.","PeriodicalId":228,"journal":{"name":"Small","volume":"5 1","pages":""},"PeriodicalIF":13.3,"publicationDate":"2026-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149218340","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

Epoxy‐Functional Hyperbranched Polysiloxane Hybridized Water‐Synthesized Polyimide Dielectrics for High‐Temperature Capacitive Energy Storage 环氧树脂-功能性超支化聚硅氧烷杂化水-高温电容储能合成聚酰亚胺介电材料

IF 13.3 2区材料科学

Small Pub Date : 2026-10-18 DOI: 10.1002/smll.76350

Xingchao Ma, Yang Xu, Jingyu Wang, Xunzhang Li, Chaochen Shao, Yuhang Li, Kai Xi

{"title":"Epoxy‐Functional Hyperbranched Polysiloxane Hybridized Water‐Synthesized Polyimide Dielectrics for High‐Temperature Capacitive Energy Storage","authors":"Xingchao Ma, Yang Xu, Jingyu Wang, Xunzhang Li, Chaochen Shao, Yuhang Li, Kai Xi","doi":"10.1002/smll.76350","DOIUrl":"https://doi.org/10.1002/smll.76350","url":null,"abstract":"Water‐synthesized polymer dielectrics with reliable high‐temperature energy storage capability are highly desirable for sustainable power electronic applications. Herein, a topology‐engineered organic‐inorganic hybrid dielectric is constructed by integrating epoxy‐functionalized hyperbranched polysiloxane (EPHPSi) into water‐synthesized fluorinated polyimide (W‐PI). During thermal imidization, the epoxy groups of EPHPSi undergo ring‐opening reactions with the polymer matrix, forming a robust cross‐linked hybrid network. The hyperbranched siloxane nanoarchitecture regulates molecular packing, suppresses segmental relaxation, and introduces additional charge‐trapping sites, thereby helping to reduce charge transport and improve the dielectric performance under elevated temperatures. As a result, the optimized W‐PI EPHPSi ‐10% film exhibits a high breakdown strength of 669 MV m −1 at room temperature and retains 630 MV m −1 at 200°C, with a relatively narrow Weibull distribution. Meanwhile, the composite film achieves a high discharge energy density of 8.75 J cm −3 with a charge‐discharge efficiency of 94.7% at room temperature. More importantly, an ultrahigh discharge energy density of 8.52 J cm −3 is maintained at 200°C under 600 MV m −1 . This work provides a sustainable strategy for developing environmentally friendly polymer dielectrics for high‐temperature capacitive energy storage.","PeriodicalId":228,"journal":{"name":"Small","volume":"14 1","pages":""},"PeriodicalIF":13.3,"publicationDate":"2026-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149218756","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

Sensing-Integrated Patient-Derived Tumorspheres Predict Chemotherapeutic Efficacy via Local Extracellular pH Dynamics 通过局部细胞外pH动态，传感集成患者源性肿瘤球预测化疗疗效

IF 11.8 2区材料科学

Small Pub Date : 2026-10-18 Epub Date: 2026-08-13 DOI: 10.1002/smll.75149

Stefania Forciniti, Valentina Onesto, Anna Chiara Siciliano, Helena Iuele, Stefano D'Ugo, Norma Depalma, Cinzia Fasano, Alessandro D'Amuri, Giuseppe Gigli, Marcello G. Spampinato, Loretta L. del Mercato

{"title":"Sensing-Integrated Patient-Derived Tumorspheres Predict Chemotherapeutic Efficacy via Local Extracellular pH Dynamics","authors":"Stefania Forciniti, Valentina Onesto, Anna Chiara Siciliano, Helena Iuele, Stefano D'Ugo, Norma Depalma, Cinzia Fasano, Alessandro D'Amuri, Giuseppe Gigli, Marcello G. Spampinato, Loretta L. del Mercato","doi":"10.1002/smll.75149","DOIUrl":"10.1002/smll.75149","url":null,"abstract":"<p>Pancreatic ductal adenocarcinoma (PDAC) is among the deadliest malignancies, due to late diagnosis, poor therapeutic response, and high inter- and intra-patient heterogeneity. Metabolic alterations, particularly extracellular acidification, critically impair drug response yet remain underexplored in clinical stratification. We present a sensing-integrated 3D platform that enables non-invasive time-resolved mapping of pH dynamics in patient-derived tumorspheres. Primary PDAC cells from five patients were embedded in an alginate-based matrix incorporating ratiometric optical pH sensors, allowing real-time monitoring of local extracellular acidification associated with individual cells during treatment. In contrast to existing bulk or invasive methods, our platform captures extracellular acidification dynamics with high spatial and temporal resolution in a 3D model with potential clinical relevance. Distinct extracellular acidification profiles emerged in response to FOLFIRINOX, gemcitabine, and paclitaxel. These metabolic signatures correlated with treatment efficacy and highlighted patient-specific drug sensitivities. This platform offers a rapid, scalable tool for personalized drug screening and highlights a potential role of pH metabolic heterogeneity in PDAC chemoresistance. It may complement existing clinical workflows by providing early predictive insights into patient-specific therapeutic outcomes.</p>","PeriodicalId":228,"journal":{"name":"Small","volume":"22 58","pages":""},"PeriodicalIF":11.8,"publicationDate":"2026-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/smll.75149","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148717676","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}

引用次数: 0

Molecular Geometry Governs Interlayer Orientation: Confined Carbonization of Deep Eutectic Solvent-Intercalated Hydrotalcite for Universal Lubrication via Hybrid Tribofilm 分子几何结构决定层间取向：深共晶溶剂插层水滑石的限制碳化，用于混合摩擦膜的通用润滑。

IF 11.8 2区材料科学

Small Pub Date : 2026-10-18 Epub Date: 2026-08-11 DOI: 10.1002/smll.75157

Ke Yang, Jingwen Guan, Gaolu Fan, Jingyu Shan, Hongxin He, Shibo Liu, Ping Wen, Rui Dong, Mingjin Fan

{"title":"Molecular Geometry Governs Interlayer Orientation: Confined Carbonization of Deep Eutectic Solvent-Intercalated Hydrotalcite for Universal Lubrication via Hybrid Tribofilm","authors":"Ke Yang, Jingwen Guan, Gaolu Fan, Jingyu Shan, Hongxin He, Shibo Liu, Ping Wen, Rui Dong, Mingjin Fan","doi":"10.1002/smll.75157","DOIUrl":"10.1002/smll.75157","url":null,"abstract":"<div>\u0000 \u0000 <p>Lubrication additives that combine high efficiency at low concentrations with broad universality are urgently needed for breaking through the bottleneck of current lubricants. Herein, two novel green deep eutectic solvents are designed using tartaric acid (TA), malic acid (MA), and L-carnitine and inserted into layered double hydroxide (LDH) gallery to fabricate four intercalated LDH composites. The intercalation successfully exfoliates pristine LDH material, and ultra-thin flexible sheets can be obtained with the controllable interlayer spacing, based on guest molecular geometries and interlayer configurations. The tribological performance reveal that molecular intercalation expands the interlayer spacing and improves interlayer shear, while the confined gallery space together with hydrogen bonding interactions enables in situ carbonization of guest molecules, forming a carbonaceous or nitrogen-doped carbon film. Moreover, LDH itself undergoes tribo-chemical reactions to transform into inorganic nanocrystals (ZnO, ZnAl<sub>2</sub>O<sub>4</sub>), which together with the carbon film, constitute a robust hybrid tribofilm. Eventually, TADES-LDH (rigid planar geometry, flat-lying configuration) exhibits excellent long-term lubrication, anti-wear (decreases by over 90%), and load-bearing properties (500 N), while achieves surprising universality across a wide range of base fluids (PEG, water, ester oil, liquid paraffin). This work offers a new paradigm for designing high-performance, universal lubricant additives toward the sustainable lubrication technology.</p>\u0000 </div>","PeriodicalId":228,"journal":{"name":"Small","volume":"22 58","pages":""},"PeriodicalIF":11.8,"publicationDate":"2026-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148710831","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

Inner‐Sphere Penetration and Outer‐Matrix Anchoring: A Biomimetic Compartmentalized Strategy for Sub‐Zero Aqueous Zinc‐Ion Batteries 内球渗透和外基质锚定：亚零锌离子电池的仿生分区策略

IF 13.3 2区材料科学

Small Pub Date : 2026-10-18 DOI: 10.1002/smll.76288

Junyi Yin, Zhiqi Wu, Shun Zhang, Shuxuan Peng, Yunpeng Liu, Huajun Tian

{"title":"Inner‐Sphere Penetration and Outer‐Matrix Anchoring: A Biomimetic Compartmentalized Strategy for Sub‐Zero Aqueous Zinc‐Ion Batteries","authors":"Junyi Yin, Zhiqi Wu, Shun Zhang, Shuxuan Peng, Yunpeng Liu, Huajun Tian","doi":"10.1002/smll.76288","DOIUrl":"https://doi.org/10.1002/smll.76288","url":null,"abstract":"Aqueous zinc‐ion batteries (AZIBs) are severely hindered at extremely low temperatures by aqueous electrolyte freezing, sluggish desolvation kinetics, and rampant dendrite growth. Drawing inspiration from biological compartmentalized cryoprotection, a biomimetic binary additive strategy is developed using penetrating dimethyl sulfoxide (DMSO) and non‐penetrating raffinose. DMSO, functioning as a permeable additive, can infiltrate the primary solvation structure of zinc ions, modify the solvation sheath, and disturb the organized configuration of water molecules, thus impeding ice crystal formation. The non‐permeable additive raffinose primarily modifies the surrounding microenvironments of the electrolyte, diminishing the activity of free water molecules, substantially decreasing the freezing point, and facilitating the system's shift to a glassy state. Consequently, the optimized electrolyte enables Zn//Zn symmetric cells to deliver an exceptional lifespan of 1600 h at 10 mA cm −2 , and maintain stable cycling over 600 h even at −30°C (5 mA cm −2 ). Moreover, Zn//Cu half‐cells achieve a high Coulombic efficiency of 99.76%, while Zn//NH 4 V 4 O 10 full cells retain 130 mAh g −1 after 1000 cycles at −30°C and 5 A g −1 . This study breaks the low‐temperature boundaries of AZIBs and offers a universal biomimetic paradigm for wide‐temperature electrolyte engineering.","PeriodicalId":228,"journal":{"name":"Small","volume":"117 1","pages":""},"PeriodicalIF":13.3,"publicationDate":"2026-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149218730","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

Regeneration of Active Sites and Interfacial Environment for Boosting Selective Glycerol Electrooxidation 促进甘油选择性电氧化活性位点的再生和界面环境

IF 13.3 2区材料科学

Small Pub Date : 2026-10-18 DOI: 10.1002/smll.76355

Ningxin Xiao, Ruidong Yang, Shaojian Jiang, Haichuan Liao, Huan Wen, Shibin Yin, Hongjing Wang, Liang Wang, Hongjie Yu

{"title":"Regeneration of Active Sites and Interfacial Environment for Boosting Selective Glycerol Electrooxidation","authors":"Ningxin Xiao, Ruidong Yang, Shaojian Jiang, Haichuan Liao, Huan Wen, Shibin Yin, Hongjing Wang, Liang Wang, Hongjie Yu","doi":"10.1002/smll.76355","DOIUrl":"https://doi.org/10.1002/smll.76355","url":null,"abstract":"Electrocatalytic oxidation of glycerol to glycerate (GLA) is challenged by catalyst deactivation and product over‐oxidation. Here, we deconvolute the deactivation into two distinct types: chemical (surface oxide accumulation and electrostatic retention of glycerate) and physical (local product enrichment). To address both, we develop a PdCuBi trimetallic metallene (PdCuBiene) that resists chemical deactivation, and combine it with pulsed electrolysis to achieve dual regeneration. Cathodic pulses achieve chemical regeneration by reducing surface oxides and promoting GLA desorption. High flow rates provide physical regeneration by convectively removing accumulated products from the interface. Consequently, GLA selectivity jumps from 68.13% to 85.15% under optimized pulse conditions. In a membrane electrode assembly (MEA) flow electrolyzer, increasing the flow rate from 5 to 60 mL min −1 raises GLA selectivity from 14.28% to 84.18% and sustains operation for 144 h. This dual regeneration concept restores active sites and cleans the interface, offering a broadly applicable strategy for biomass electrooxidation.","PeriodicalId":228,"journal":{"name":"Small","volume":"12 1","pages":""},"PeriodicalIF":13.3,"publicationDate":"2026-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149218335","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

Manipulating Local Concentration of Hexafluorophosphate Anion in Dimethyl Carbonate to Improve the Performance of Dual‐Ion Batteries 控制碳酸二甲酯中六氟磷酸阴离子的局部浓度以提高双离子电池的性能

IF 13.3 2区材料科学

Small Pub Date : 2026-10-18 DOI: 10.1002/smll.76274

Junkun Liu, Jiaxing Qi, Yunju Wang, Haibo Liu, Mingjun Jia, Hongyu Wang, Guobao Xu

{"title":"Manipulating Local Concentration of Hexafluorophosphate Anion in Dimethyl Carbonate to Improve the Performance of Dual‐Ion Batteries","authors":"Junkun Liu, Jiaxing Qi, Yunju Wang, Haibo Liu, Mingjun Jia, Hongyu Wang, Guobao Xu","doi":"10.1002/smll.76274","DOIUrl":"https://doi.org/10.1002/smll.76274","url":null,"abstract":"The development of high‐performance dual‐ion batteries (DIBs) hinges on understanding anion intercalation chemistry, which remains less explored than its cationic counterpart. While high‐concentration electrolytes can enhance anion storage in graphite cathodes, the independent role of anion solvation structure is ambiguous. Herein, we systematically tailor the PF 6 − solvation structure by designing a series of localized high‐concentration electrolytes (LHCEs) based on LiPF 6 ‐DMC solution, using TTE as a diluent. This strategy uniquely reduces coordinating DMC and increases anion‐solvent separation, thus effectively loosening the solvation environment without altering the salt concentration. Combining FTIR, NMR, MD, and in/ex situ XRD, we reveal the correlation between DMC‐PF 6 − solvation structures and the anion storage behavior in graphite cathodes. Anions with looser solvation sheaths exhibit more efficient de‐intercalation kinetics and induce more ordered two‐phase transitions, improving reversible capacity and cycling stability. The optimized LHCE delivers multifunctional performance: exceptional flame retardancy, low‐temperature operation (80 mAh g −1 over 3000 cycles at −10°C, stable), and markedly reduced self‐discharge. This work shifts the paradigm from electrolyte compositional tuning to precise solvation‐structure engineering. The rational design of electrolyte solvation structures can effectively regulate anion intercalation chemistry, providing a key strategy for developing high‐performance, safe, and wide‐temperature‐range DIBs.","PeriodicalId":228,"journal":{"name":"Small","volume":"13 1","pages":""},"PeriodicalIF":13.3,"publicationDate":"2026-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149218769","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