Small最新文献

{"title":"Cooperative Regulation of Defect-Mediated Molecular Recognition With Single-Walled Carbon Nanotubes","authors":"Srestha Basu,&nbsp;Gili Bisker","doi":"10.1002/smll.76014","DOIUrl":"10.1002/smll.76014","url":null,"abstract":"<p>Defects are increasingly recognized as powerful modulators of the chemistry and photophysics of fluorescent single-walled carbon nanotubes (SWCNTs), enabling tunable optical responses toward exogenously introduced analytes. However, defect-mediated interactions arise not solely from defects, but from the interplay among multiple interconnected system variables, including defect type and density, analyte identity and size, corona composition and conformation, SWCNT chirality, and the surrounding environment. In this forward-looking perspective, we discuss how these variables collectively govern the fluorescence modulation and molecular recognition behavior of defect-engineered SWCNTs. We first summarize major strategies for defect introduction and recent advances in defect quantification. Subsequently, through case-by-case analyses, we examine how systematic variation of individual parameters reshapes analyte–SWCNT interactions and sensing outcomes. Specifically, we discuss systems exhibiting analyte-dependent fluorescence modulation, defect-enabled ratiometric sensing, analyte-size-dependent interactions, corona-dependent defect reactivity, and the cooperative behavior of multiple defect types within the same nanotube framework. Finally, we highlight key challenges associated with defect heterogeneity, predictability, and controllable molecular recognition, while outlining emerging opportunities involving programmable nanosensing, artificial intelligence-assisted design, and multifunctional imaging platforms. Overall, this perspective emphasizes that defect-mediated sensing in SWCNTs is fundamentally governed by the cooperative interplay of multiple system variables.</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.76014","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149072862","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":"One‐Pot Fabrication of Pentapeptide Bio‐Aerogel via Direct Alcogelation","authors":"Brody McDonald, Durga Dharmadana, Nevena Todorova, Boyin Liu, Shuaiyu Jiang, Ewan W. Blanch, Céline Valéry","doi":"10.1002/smll.76351","DOIUrl":"https://doi.org/10.1002/smll.76351","url":null,"abstract":"Bio‐aerogels are a class of ultra‐lightweight, extremely porous, solid materials that are engineered from biopolymers, e.g., polysaccharides, proteins, or peptides. Such biomaterials are of interest for medical and environmental applications, such as molecular filtration, wound healing, or tissue engineering. In this context, ultrashort peptides, defined as sequences of up to ten amino acids, are attractive self‐assembling building blocks for bio‐aerogels, due to their low‐cost synthesis, chemical tunability, and potential biocompatibility. Building on our previous report demonstrating the intrinsic self‐assembly of the human tachykinin Substance P into semi‐flexible nanotubes, we focus on the tachykinin consensus sequence FFGLM‐NH <jats:sub>2</jats:sub> , proposed here as the core motif driving native tachykinin self‐assembly. Named tachycontide‐1, the consensus pentapeptide can self‐assemble into hydrogels and alcogels, a rare property for short peptides. As a result, the peptide aerogels can be fabricated by direct supercritical drying of a one‐pot reaction mixture in ethanol. Using a set of biophysical techniques, including fluorescence spectroscopy, infrared spectroscopy, rheology, optical/electron microscopy, synchrotron small/wide‐angle X‐ray scattering, nitrogen adsorption‐desorption analysis, and atomistic simulations, we examine the solvent influence on peptide self‐assembly and its impact on the resulting aerogel structure, crystallinity, and physical properties.","PeriodicalId":228,"journal":{"name":"Small","volume":"11 1","pages":""},"PeriodicalIF":13.3,"publicationDate":"2026-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149218738","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}

{"title":"An Electronic‐Geometric Descriptor for Predicting High‐Voltage Prussian Blue Analogue Cathodes","authors":"Hengjia Shao, Ping Tong, Pei Chen, Yun‐Xiao Wang, Shu‐Lei Chou, Igor Ying Zhang, Xin Tan","doi":"10.1002/smll.76308","DOIUrl":"https://doi.org/10.1002/smll.76308","url":null,"abstract":"Prussian blue analogues (PBAs) are promising sodium‐ion battery cathodes owing to their open frameworks, compositional tunability, and high operating voltages. However, the rational design of high‐voltage PBAs is hindered by the lack of physically interpretable descriptors connecting atomic‐scale properties with voltage behavior. Here, we develop an electronic‐geometric coupled descriptor for correlating and predicting voltage plateaus in PBAs. The descriptor combines the p‐band center of the cyano‐ligand N atom, which characterizes the electronic contribution to Na‐N interactions, with a lattice‐response term that describes framework confinement during sodiation. Density functional theory calculations on ordered binary PBAs show that the coupled descriptor improves the correlations with both high‐ and low‐voltage plateaus relative to the electronic descriptor alone, and the predicted trends are consistent with available experimental reports for representative systems. We further apply this descriptor to screen 78 PBA compositions, including ordered binary, multielement‐doped Fe‐based, and high‐entropy PBAs. Eight compositions are predicted to exhibit both high‐ and low‐voltage plateaus above 3.8 V, among which Cu[Fe(CN) <jats:sub>6</jats:sub> ], Ni[Fe(CN) <jats:sub>6</jats:sub> ], and Zn <jats:sub>2</jats:sub> Cu <jats:sub>2</jats:sub> [Fe(CN) <jats:sub>6</jats:sub> ] <jats:sub>4</jats:sub> agree with reported experimental trends, while Zn[Zn(CN) <jats:sub>6</jats:sub> ], Zn[Fe(CN) <jats:sub>6</jats:sub> ], Cu[Mn(CN) <jats:sub>6</jats:sub> ], Cu[Zn(CN) <jats:sub>6</jats:sub> ], and Ni <jats:sub>3</jats:sub> Zn[Fe(CN) <jats:sub>6</jats:sub> ] <jats:sub>4</jats:sub> are proposed as candidates for further experimental validation. This study offers a descriptor‐guided strategy for the discovery of high‐voltage PBA cathodes.","PeriodicalId":228,"journal":{"name":"Small","volume":"28 1","pages":""},"PeriodicalIF":13.3,"publicationDate":"2026-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149218764","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}

{"title":"Origin of Chirality in Nanobipyramids","authors":"Kush Kumar, Pablo Mariani, Emma Bagnouls, Ivan Rivalta, Stephane Parola, Anthony Desert, Santosh Kumar Meena","doi":"10.1002/smll.76340","DOIUrl":"https://doi.org/10.1002/smll.76340","url":null,"abstract":"Chirality at the nanoscale is vital for advances in emerging applications in biosensing, catalysis, and photonics, yet the atomistic mechanisms governing its emergence during nanoparticle growth remain poorly understood. Here, we investigate the origin of chirality in nanobipyramids formed through Au and Ag overgrowth on gold bipyramid seeds in the presence of three chiral encoders, L‐cysteine, N‐acetyl‐L‐cysteine, and D‐penicillamine combining molecular dynamics simulations with experimental measurements. Our simulation results show that without chiral encoders, overgrowth is tip‐dominated, yielding symmetric bipyramids or rod‐like morphologies consistent with experimental observations. In the presence of cysteine, tip growth is suppressed and lateral deposition is promoted on stepped facets, producing anisotropic, gnocchi‐like Au and truncated bipyramidal Ag morphologies. Our simulation results also show that chirality originates from the formation of chiral kink atoms at intersections of (111), (100), and (110) facets. The overall chiral kink densities depend on the chiral encoders and directly correlate with the experimentally measured circular dichroism responses across different chiral encoders. Furthermore, chirality transfer is enantioselective: L‐cysteine stabilizes S‐type kink configurations, whereas D‐cysteine gives R‐type configurations, explaining mirror‐image circular dichroism spectra obtained with these enantiomers. These results establish a predictive atomistic framework for rationally designing chiral plasmonic nanostructures.","PeriodicalId":228,"journal":{"name":"Small","volume":"27 1","pages":""},"PeriodicalIF":13.3,"publicationDate":"2026-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149218771","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}

{"title":"Self‐Supported Cu Electrode as the Cathode for Hybrid Zn‐Air/Cu Batteries Achieving Long‐Term Operation Under Oxygen‐Free Condition","authors":"Zhaotian Chen, Xiaohan Chen, Jiayun Zeng, Shanwen Wu, Krongthong Kamonsuangkasem, Juan Wang, Sibudjing Kawi, Qin Zhong","doi":"10.1002/smll.76309","DOIUrl":"https://doi.org/10.1002/smll.76309","url":null,"abstract":"The integration of Zn‐air batteries with Zn‐metal batteries enables the efficient realization of hybrid Zn‐based batteries with synergistic high energy and power density. In this hybrid system, the reduction potential of CuO in the Zn‐Cu battery is lower than the oxygen reduction reaction (ORR), thus allowing CuO to replace the ORR and enable discharging under oxygen‐free conditions. Herein, carbon nanotubes are deposited onto copper foam, followed by one‐step calcination process to fabricate self‐supported electrode CuO <jats:sub>x</jats:sub> @CNTs/CF for hybrid Zn‐air/Cu batteries. The hybrid Zn‐air/Cu batteries deliver the peak power density of 117.5 mW cm <jats:sup>−2</jats:sup> and specific capacity of 792.6 mAh g <jats:sup>−1</jats:sup> , with a stable cycling life of 800 h. More importantly, the self‐supported electrode enables stable operation for up to 340 h in oxygen‐free environments. Furthermore, the introduction of NiFe‐based active species to construct hybrid Zn‐air/Cu/Ni batteries boosts the peak power density to an excellent 458.4 mW cm <jats:sup>−2</jats:sup> . The hybrid batteries exhibit stable cycling life for 1200 h under oxygen‐rich conditions and 390 h in oxygen‐free environments, respectively. This work provides profound insights into the rational design, development and practical applications of hybrid Zn‐based batteries for future energy storage systems.","PeriodicalId":228,"journal":{"name":"Small","volume":"25 1","pages":""},"PeriodicalIF":13.3,"publicationDate":"2026-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149218330","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}

{"title":"Isoreticular Contraction of kgd‐Topology Covalent Organic Framework Membranes for Precise Pharmaceutical Separation","authors":"Baodong Tian, Hukang Guo, Weilin Feng, Jiaqi Li, Wenshuo Cui, Chuanjie Fang, Li Xu, Liping Zhu","doi":"10.1002/smll.76356","DOIUrl":"https://doi.org/10.1002/smll.76356","url":null,"abstract":"Covalent organic frameworks (COFs) provide a structurally programmable platform for membrane‐based separation of small‐molecule active pharmaceutical ingredients (APIs). Nevertheless, constructing membrane pores with subnanometer precision and resolving structurally similar molecular mixtures remain major challenges. Herein, we report an isoreticular contraction strategy to construct a series of kgd‐topology COF membranes with progressively narrowed apertures in situ on polyacrylonitrile (PAN) substrates through contra‐diffusion interfacial polymerization between hexa(4‐formylphenyl)benzene (HFPB) and three triamine monomers of decreasing size. Systematic framework contraction decreased the aperture from 12.1 to 10.2 Å and then to 6.5 Å, giving molecular weight cut‐offs of 500, 380, and 290 Da, respectively. Notably, membranes with different contraction degrees were further integrated into a cascade separation system with well‐separated molecular‐weight rejection thresholds, enabling the purification of a four‐component mixture of camptothecin‐related compounds with equal mass concentrations, achieving a maximum fraction purity of 96.6%. This work establishes isoreticular contraction as an effective strategy for programming transport‐relevant pores in COF membranes and highlights the potential of kgd‐topology COF membranes for cascade pharmaceutical purification.","PeriodicalId":228,"journal":{"name":"Small","volume":"380 1","pages":""},"PeriodicalIF":13.3,"publicationDate":"2026-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149218332","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}

{"title":"Co‐Anchored Carbonized Carbon Cloth Boosting Phase Change Materials for Photo/Electro‐Thermal Conversion and Storage","authors":"Yue Liu, Minming Zou, Yan Ma, Wenjing Chen, Qinglin Li, Xiongxin Jiang, Xiaowu Hu","doi":"10.1002/smll.76371","DOIUrl":"https://doi.org/10.1002/smll.76371","url":null,"abstract":"The widespread application of phase change materials (PCMs) in sustainable energy technologies is constrained by their intrinsically low thermal and electrical conductivity. By impregnating stearic acid (SA) into a carbon heterostructure derived from a cobalt‐based metal‐organic framework and carbon cloth (CC), we have developed a composite phase change materials (CPCMs) that not only achieves high thermal conductivity (2.14 W / m · K) and high electrical conductivity (2186.5 S/m) but also retains effective thermal energy storage capacity (110.4 J / g). This composite attains an electro‐thermal conversion efficiency of 95.4% at a voltage of 2.5 V. Furthermore, the synergistic effect between the localized surface plasmon resonance (LSPR) of cobalt nanoparticles and the broadband absorption of graphitized carbon fibers enables an exceptional photothermal conversion efficiency of 95.01% under irradiation of 120 mW/cm <jats:sup>2</jats:sup> . A thermoelectric system fabricated by coupling it with a thermoelectric module can stably deliver a voltage of 791 mV and a current of 123.9 mA under an illumination intensity of 300 mW/cm <jats:sup>2</jats:sup> , corresponding to a power density of 61.25 W/m <jats:sup>2</jats:sup> . By integrating highly efficient photo‐ and electro‐thermal conversion capabilities, these multifunctional CPCMs demonstrate significant potential for advanced applications such as solar thermal utilization and active de‐icing systems.","PeriodicalId":228,"journal":{"name":"Small","volume":"33 1","pages":""},"PeriodicalIF":13.3,"publicationDate":"2026-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149218333","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}

{"title":"Pulsed‐Laser‐Engineered Cu Single Atoms in δ‐Bi 2 O 3 Nanosheets for Efficient Formate‐Producing Zn–CO 2 Batteries","authors":"Chae Eun Park, Raja Arumugam Senthil, Anuj Kumar, Gyeong‐Ah Kim, Jayachandran Jayakumar, Ho‐Hsiu Chou, Myong Yong Choi","doi":"10.1002/smll.76357","DOIUrl":"https://doi.org/10.1002/smll.76357","url":null,"abstract":"Herein, we report a pulsed laser irradiation in liquid (PLIL) strategy that concurrently induces phase transformation, morphological reconstruction, and single‐atom stabilization in bismuth oxide (Bi <jats:sub>2</jats:sub> O <jats:sub>3</jats:sub> ) for efficient carbon‐dioxide reduction reaction (CO <jats:sub>2</jats:sub> RR). PLIL transforms α‐Bi <jats:sub>2</jats:sub> O <jats:sub>3</jats:sub> microrods to δ‐Bi <jats:sub>2</jats:sub> O <jats:sub>3</jats:sub> nanosheets, while simultaneous anchoring atomically dispersed Cu sites within the δ‐Bi <jats:sub>2</jats:sub> O <jats:sub>3</jats:sub> lattice. The CO <jats:sub>2</jats:sub> RR activity of the PLIL‐derived δ‐Bi <jats:sub>2</jats:sub> O <jats:sub>3</jats:sub> nanosheets substantially exceeds that of α‐Bi <jats:sub>2</jats:sub> O <jats:sub>3</jats:sub> microrods and is further improved in Cu single‐atom‐stabilized δ‐Bi <jats:sub>2</jats:sub> O <jats:sub>3</jats:sub> (Cu SA/δ‐Bi <jats:sub>2</jats:sub> O <jats:sub>3</jats:sub> ) nanosheets, which deliver a high Faradaic efficiency (93.55%) with a formate yield rate of 210 µM·h <jats:sup>−1</jats:sup> ·cm <jats:sup>−2</jats:sup> at −1.0 V (versus the reversible hydrogen electrode). The key surface intermediates, identified using situ Raman and ex situ Fourier‐transform infrared spectroscopy, confirm the stabilization of *OCHO species during formate formation. Theoretical calculations reveal that Cu single‐atom incorporation electronically modulates the δ‐Bi <jats:sub>2</jats:sub> O <jats:sub>3</jats:sub> matrix, optimizing the intermediate adsorption energies and lowering the reaction barrier of the CO <jats:sub>2</jats:sub> ‐to‐formate pathway. Furthermore, a Zn–CO <jats:sub>2</jats:sub> battery with a Cu SA/δ‐Bi <jats:sub>2</jats:sub> O <jats:sub>3</jats:sub> cathode delivers an output voltage of 1.74 V and converts CO <jats:sub>2</jats:sub> to formate while generating electricity for over 300 h of stable operation. The Zn–CO <jats:sub>2</jats:sub> battery successfully powers light‐emitting diodes and a digital clock, underscoring its potential in real‐world energy–carbon coupling applications.","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":"149218336","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}

{"title":"Rational Design of Copper Catalysts for Carbon Dioxide Electroreduction Reaction: Toward Efficient C–C Coupling and C 2+ Generation","authors":"Xu Chen, Wenxiu Zhang, Li Zhou, Xiaoyue Zheng, Lulu Wang, Yanru Yuan, Jiwen Wu, Xiang Li, Ye Zhang, Ping Che, Jinlong Zheng","doi":"10.1002/smll.76304","DOIUrl":"https://doi.org/10.1002/smll.76304","url":null,"abstract":"With the growing global demand for carbon neutrality and renewable energy technologies, the electrochemical reduction of carbon dioxide (CO <jats:sub>2</jats:sub> RR) into high‐value fuels and chemicals is regarded as one of the key strategies for achieving carbon recycling. Owing to their distinctive catalytic properties, copper‐based materials can effectively promote the selective reduction of CO <jats:sub>2</jats:sub> toward multicarbon (C <jats:sub>2+</jats:sub> ) products. Hence, copper (Cu)‐based materials have attracted extensive research interest in this field. This Review summarizes recent advances in Cu‐based catalysts for CO <jats:sub>2</jats:sub> electroreduction toward C <jats:sub>2+</jats:sub> products from a mechanism‐guided perspective. First, the fundamental reaction pathways, C–C coupling mechanisms, thermodynamic and kinetic factors, and dynamic reconstruction of Cu‐based catalysts are discussed. Second, the unique characteristics of Cu‐based catalysts and representative design strategies for regulating active‐site structure, intermediate adsorption, and C–C coupling are highlighted. Representative catalyst systems, including Cu and Cu alloys, Cu‐based heterostructures, and compound‐derived Cu catalysts, are then discussed with emphasis on their structural features, catalytic performance, and mechanistic insights. Finally, emerging data‐driven approaches, practical considerations, current challenges, and future perspectives are discussed, aiming to provide a theoretical basis and technical guidance for the rational design of highly efficient and durable Cu‐based CO <jats:sub>2</jats:sub> RR catalysts.","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":"149218732","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}

{"title":"Intercalation‐Type SiOC Anode Exclusively Composed of SiO 3 C Tetrahedral Unit for Stable Lithium‐Ion Batteries","authors":"Yuancheng Chen, Qiyou Xia, Hongxiang Kuai, Chuang Ji, Yufan Zheng, Yiwei Tang, Yun Cheng, Qiang Liu, Xunhui Xiong","doi":"10.1002/smll.76318","DOIUrl":"https://doi.org/10.1002/smll.76318","url":null,"abstract":"Silicon oxycarbide (SiOC) has been considered as a potential anode for lithium‐ion batteries (LIBs) due to high theoretical capacity, low volume expansion, and abundant resources. However, the uncontrolled tetrahedral structure in the SiOC often leads to unsatisfactory specific capacity and cycling stability, hindering the practical application in LIBs. Herein, a facile I <jats:sub>2</jats:sub> ‐catalyzed condensation reaction between ethylene glycol (EG) and vinyltriethoxysilane (VTES) has been proposed to prepare SiOC exclusively composed of SiO <jats:sub>3</jats:sub> C tetrahedral units for the first time. This unique atomic configuration results in an intercalation‐dominated lithium storage mechanism for I‐SiOC anode, in which the reversible lithium storage primarily occurs at O sites, as demonstrated by the experimental data and theoretical calculations. Then SiOC electrode can deliver a high capacity of 1164.8 mAh g <jats:sup>−1</jats:sup> at 0.1 A g <jats:sup>−1</jats:sup> with an initial Coulombic efficiency of 84.1%, and exhibits no observable capacity decay after 2000 cycles at 1 A g <jats:sup>−1</jats:sup> . When paired with an NCM811 cathode in a pouch cell, the full cell achieves a high energy density of 358.8 Wh kg <jats:sup>−1</jats:sup> and retains a high capacity ratio of 81.0% after 1300 cycles at 1 C. This work demonstrates that the structural engineering of a tetrahedral structure can be an efficient approach to design high‐performance SiOC‐based anodes.","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":"149218733","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}