Small Methods最新文献_第5页

Guidelines for Zn-NO₃ ^- Battery Test in Electrochemical Nitrogen Cycle Research. 电化学氮循环研究中Zn-NO3 -电池试验指南。

IF 9.1 2区材料科学

Small Methods Pub Date : 2025-09-21 DOI: 10.1002/smtd.202501524

Yongkang Li, Qiuyu Yan, Rundong Zhao, Wenbo Li, Lihong Yu, Jingyu Xi

{"title":"Guidelines for Zn-NO3 - Battery Test in Electrochemical Nitrogen Cycle Research.","authors":"Yongkang Li, Qiuyu Yan, Rundong Zhao, Wenbo Li, Lihong Yu, Jingyu Xi","doi":"10.1002/smtd.202501524","DOIUrl":"https://doi.org/10.1002/smtd.202501524","url":null,"abstract":"Industrial nitrate (NO3 -) pollution and energy-intensive ammonia (NH3) synthesis exacerbate ecological pressures. Zn-NO3 - batteries, which integrate pollutant conversion, in situ NH3 synthesis, and electricity generation, face performance incomparability issues due to the absence of standardized testing protocols. This study establishes the first standardized testing guideline for Zn-NO3 - batteries. By analyzing recent literature sources, it reveals the correlation between insufficient disclosure of key parameters and highly scattered performance data. Systematic experiments demonstrate that: cathode sizes ≥1 cm2 mitigate measurement distortion from capillary effects; anode electrolytes with ≥3 M KOH eliminate passivation layers via soluble [Zn(OH)4]2 - formation; chronoamperometry outperforms linear sweep voltammetry in circumventing double-layer capacitance interference; catalysts/electrodes must maintain >90% Faradaic efficiency of NH3 across a wide current window to meet practical operation requirements; zero-gap flow cell incorporating anion exchange membrane reduce internal resistance by 94%, achieving a peak power density of 30.86 mW cm- 2. This work proposes a standardized checklist encompassing nine core parameters, establishing a unified testing framework for reliable Zn-NO3 - battery research and cross-platform data comparison.","PeriodicalId":229,"journal":{"name":"Small Methods","volume":" ","pages":"e01524"},"PeriodicalIF":9.1,"publicationDate":"2025-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145111549","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

Li₂S Cathode Mediated by Diphenyl Chalcogenides in All-Solid-State Batteries. 全固态电池中二苯硫属化合物介导的Li2S阴极

IF 9.1 2区材料科学

Small Methods Pub Date : 2025-09-20 DOI: 10.1002/smtd.202501077

Chenxin Huang, Junsheng Fan, Wenxuan Sun, Yongzhu Fu, Wei Guo

{"title":"Li2S Cathode Mediated by Diphenyl Chalcogenides in All-Solid-State Batteries.","authors":"Chenxin Huang, Junsheng Fan, Wenxuan Sun, Yongzhu Fu, Wei Guo","doi":"10.1002/smtd.202501077","DOIUrl":"https://doi.org/10.1002/smtd.202501077","url":null,"abstract":"Lithium sulfide (Li2S), as one of the critical cathodes in all-solid-state batteries, shows promising potential. However, its ion and electron blocking characteristics necessitate a high charge overpotential for activation, which can result in the decomposition of sulfide-based solid-state electrolytes. In this study, diphenyl chalcogenides are applied as redox mediators to reduce the initial charge voltage and improve the utilization of Li2S in all solid-state lithium-sulfur batteries. Among them, diphenyl ditelluride (DPDTe) enables the highest initial charge capacity (963.1 mAh g-1) of Li2S. The Li2S-DPDTe composite cathode, along with Li7P3S11 sulfide electrolyte and In-Li anode, exhibits a low charge voltage of 2.4 V. After 360 cycles, the battery demonstrates an average areal discharge capacity of 0.9 mAh cm-2 at a current density of 0.2 mA cm-2 (706.8 mAh g-1 based on the mass of Li2S). This study aims to use diphenyl chalcogenides as mediators to lower the initial overpotential of Li2S, thereby aligning with the narrow electrochemical window of sulfide electrolytes and providing valuable insights for high-energy-density all-solid-state batteries.","PeriodicalId":229,"journal":{"name":"Small Methods","volume":" ","pages":"e01077"},"PeriodicalIF":9.1,"publicationDate":"2025-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145090857","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

HiLAB: A Hybrid Inverse-Design Framework. HiLAB：混合反设计框架。

IF 9.1 2区材料科学

Small Methods Pub Date : 2025-09-20 DOI: 10.1002/smtd.202500975

Reza Marzban, Hamed Abiri, Raphaël Pestourie, Ali Adibi

{"title":"HiLAB: A Hybrid Inverse-Design Framework.","authors":"Reza Marzban, Hamed Abiri, Raphaël Pestourie, Ali Adibi","doi":"10.1002/smtd.202500975","DOIUrl":"https://doi.org/10.1002/smtd.202500975","url":null,"abstract":"HiLAB (Hybrid inverse-design with Latent-space learning, Adjoint-based partial optimizations, and Bayesian optimization), is a new paradigm for inverse design of nanophotonic structures. Combining early-terminated topological optimization (TO) with a Vision Transformer-based variational autoencoder (VAE) and a Bayesian search, HiLAB addresses multifunctional device design by generating diverse freeform configurations at reduced simulation costs. Shortened adjoint-driven TO runs, coupled with randomized physical parameters, produce robust initial structures. These structures are compressed into a compact latent space by the VAE, enabling Bayesian optimization to co-optimize geometry and physical hyperparameters. Crucially, the trained VAE can be reused for alternative objectives or constraints by adjusting only the acquisition function. Compared to conventional TO pipelines prone to local optima, HiLAB systematically explores near-global optima with considerably fewer electromagnetic simulations. Even after accounting for training overhead, the total number of full electromagnetic simulations decreases by an order of magnitude, accelerating the discovery of fabrication-friendly devices. Demonstrating its efficacy, HiLAB is used to design an achromatic beam deflector for red, green, and blue wavelengths, achieving balanced diffraction efficiencies of ∼25% while mitigating chromatic aberrations, a performance surpassing existing demonstrations. Overall, HiLAB provides a flexible platform for robust, multi-parameter photonic designs and rapid adaptation to next-generation nanophotonic challenges.","PeriodicalId":229,"journal":{"name":"Small Methods","volume":" ","pages":"e00975"},"PeriodicalIF":9.1,"publicationDate":"2025-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145090883","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

Alternating Electric Field-Assisted Matrix Nano-Coating for High Spatial Resolution MALDI Imaging. 交变电场辅助基质纳米涂层用于高空间分辨率MALDI成像。

IF 9.1 2区材料科学

Small Methods Pub Date : 2025-09-18 DOI: 10.1002/smtd.202500785

Hua Guo, Jinming Li, Hao Hu, Liang Qin, Lulu Chen, Qichen Hao, Chenyu Yang, Ran Wu, Jie Feng, Rui Liu, Difan Chen, Wei Li, Shuyu Hao, Xiaodong Wang

{"title":"Alternating Electric Field-Assisted Matrix Nano-Coating for High Spatial Resolution MALDI Imaging.","authors":"Hua Guo, Jinming Li, Hao Hu, Liang Qin, Lulu Chen, Qichen Hao, Chenyu Yang, Ran Wu, Jie Feng, Rui Liu, Difan Chen, Wei Li, Shuyu Hao, Xiaodong Wang","doi":"10.1002/smtd.202500785","DOIUrl":"https://doi.org/10.1002/smtd.202500785","url":null,"abstract":"The simultaneous achievement of matrix nano-coating and efficient in situ enrichment of analytes is currently an important aspect affecting the ability of matrix-assisted laser desorption/ionization mass spectrometry imaging (MALDI-MSI) to efficiently explore endogenous compounds in situ with high-resolution. Herein, a novel matrix coating approach called alternating electric field-assisted matrix nano-coating (AEFAMnC) is reported, which is designed to amplify the capabilities of high-resolution MALDI imaging. The use of AEFAMnC achieves matrix nano-coating (the smallest crystal size, ca. 70 nm), resulting in superior uniform matrix deposition. Interestingly, AEFAMnC leverages asymmetric alternating electric fields to initiate a repetitive forced micro-extraction process, which significantly enhance the in situ enrichment of compounds on the sample surface for more adequate co-crystallization with the matrix. These features finally improve in situ ionization efficiency and high-resolution imaging performance of endogenous compounds across various biological samples (i.e., rat brain, germinating Chinese yew seeds, and single cells) at 5-µm pixel size. Overall, for the first time, AEFAMnC simultaneously achieves both matrix nano-coating and in situ repetitive forced micro-extraction of analytes, significantly improving the performance of high-spatial-resolution MALDI-MSI. AEFAMnC has far-reaching implications in high-resolution MALDI imaging, particularly in MS-based single-cell spatial omics studies.","PeriodicalId":229,"journal":{"name":"Small Methods","volume":" ","pages":"e00785"},"PeriodicalIF":9.1,"publicationDate":"2025-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145079206","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

Tuning the Performance of Inorganic Nanosized Fluorophores in Near-Infrared Region II by Surface Chemical Modification. 无机纳米荧光团在近红外区的性能的表面化学修饰。

IF 9.1 2区材料科学

Small Methods Pub Date : 2025-09-18 DOI: 10.1002/smtd.202500809

Fenghao Lin, Qianying Huang, Zhengwei Mao, Weili Wang

{"title":"Tuning the Performance of Inorganic Nanosized Fluorophores in Near-Infrared Region II by Surface Chemical Modification.","authors":"Fenghao Lin, Qianying Huang, Zhengwei Mao, Weili Wang","doi":"10.1002/smtd.202500809","DOIUrl":"https://doi.org/10.1002/smtd.202500809","url":null,"abstract":"Near-infrared region-II (NIR-II) emitters have been extensively explored and applied in biomedical imaging because the majority of biological tissues are relatively transparent and display limited autofluorescence in this region. Inorganic nanoparticles are the most widely studied NIR-II emitters, with increasing research interest recently focusing on the engineering of diverse nanosized NIR-II emitters, such as quantum dots, metal-based clusters, rare-earth-doped nanoparticles, and carbon-based nanoparticles, etc. The imaging performances of these luminescent nanoparticles can be tuned by controlling the particle composition, size, shape, crystallinity, and surface chemistry. Among these, surface functionalization has been demonstrated to be a facile and efficient approach for enhancing quantum yields, regulating excitation/emission wavelengths, and improving stability, targetability, and biocompatibility characteristics of NIR-II nano-emitters. A timely discussion regarding the impact of surface chemistry may therefore enable the rational engineering of surface-modifying ligands to enhance imaging performances and accelerate the clinical translation of NIR-II nano-emitters. The current review summarizes previously reported NIR-II nanosized fluorophores and their surface functionalities, in addition to discussing the effects of the surface ligands on their optical properties, stabilities, targetabilities, and biocompatibilities. Moreover, a few promising approaches are highlighted for regulating the surface chemistries of nanoparticles to improve their imaging performances.","PeriodicalId":229,"journal":{"name":"Small Methods","volume":" ","pages":"e00809"},"PeriodicalIF":9.1,"publicationDate":"2025-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145079258","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

Rapidly Enhancing Electrochemical Performance of Perovskite Anode by Extreme Processing. 极端处理快速提高钙钛矿阳极电化学性能。

IF 9.1 2区材料科学

Small Methods Pub Date : 2025-09-18 DOI: 10.1002/smtd.202501225

Weiwei Fan, Zhu Sun, Xiangru Kong, Kuaile Liu, Rui Xiao

{"title":"Rapidly Enhancing Electrochemical Performance of Perovskite Anode by Extreme Processing.","authors":"Weiwei Fan, Zhu Sun, Xiangru Kong, Kuaile Liu, Rui Xiao","doi":"10.1002/smtd.202501225","DOIUrl":"https://doi.org/10.1002/smtd.202501225","url":null,"abstract":"Solid oxide fuel cell (SOFC) is a useful electrochemical device that can directly convert chemical energy into electrical energy. Benefitted from their mixed ionic and electronic conducting property and good stability in a wide oxygen partial pressure (pO2) window, perovskite oxides are widely applied in SOFCs. However, due to the intrinsically low electrochemical activity, perovskite-based cells usually show inferior output at low temperatures. Herein, it is proposed to engineer both the surface and the bulk of perovskite to improve its electrocatalytic performance. First, it is demonstrated that by progressive extreme processing (extreme plasma ≈5 min + extreme voltage shock ≈50 s), the activity of perovskite anode La0.35Ca0.45Ti0.84Fe0.08Ni0.08O3- δ (LCTFN) can be significantly enhanced, primarily attributed to the increased concentration of oxygen vacancy and the improved conductivity after engineering the surface and the bulk of LCTFN, and thus bringing about an enhanced kinetics of hydrogen oxidation reaction. At a relatively low temperature of 700 °C, a favorable peak power density of 1.2 W cm-2 is obtained for the bulk-engineered LCTFN, which is ≈24 times higher than that of the pristine LCTFN. This study establishes a new method to effectively activate the perovskite oxide in a rapid manner and lower the working temperature of perovskite anode-based SOFCs.","PeriodicalId":229,"journal":{"name":"Small Methods","volume":" ","pages":"e01225"},"PeriodicalIF":9.1,"publicationDate":"2025-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145084562","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

Multi-Valent Cation Strategies for Controlling Interphase Chemistry at the Lithium Metal Anode. 控制锂金属阳极界面化学的多价阳离子策略。

IF 9.1 2区材料科学

Small Methods Pub Date : 2025-09-18 DOI: 10.1002/smtd.202501449

Peng Yan, Rui Xu, Matthias Weiling, Bixian Ying, Marian Cristian Stan, Christian Wölke, Masoud Baghernejad, Jia-Qi Huang, Martin Winter, Peter Bieker, Isidora Cekic-Laskovic

{"title":"Multi-Valent Cation Strategies for Controlling Interphase Chemistry at the Lithium Metal Anode.","authors":"Peng Yan, Rui Xu, Matthias Weiling, Bixian Ying, Marian Cristian Stan, Christian Wölke, Masoud Baghernejad, Jia-Qi Huang, Martin Winter, Peter Bieker, Isidora Cekic-Laskovic","doi":"10.1002/smtd.202501449","DOIUrl":"https://doi.org/10.1002/smtd.202501449","url":null,"abstract":"The effectiveness of a solid electrolyte interphase (SEI) in lithium metal batteries (LMBs) is crucial for the reversible deposition and dissolution of lithium (Li). Herein, a multi-valent cation (MVC) is proposed approach to enable superior LMB performance without increasing conducting salt concentration, thus reducing the cost and environmental footprint of LMBs. In this approach, a minimal amount of magnesium carbonate (MgCO3) of 0.05 m is added to a lithium hexafluorophosphate (LiPF6) based electrolyte, which effectively scavenges hydrogen fluoride (HF) generated from hydrolysis of LiPF6. Concurrently, the HF scavenging process dissolves MgCO3 microparticles and releases Mg2+ cations. It is noteworthy that multivalent Mg2+ cations, due to their high charge density, enrich the electric double layer with anions that preferentially decompose to form an anion-derived SEI. Consequently, the MVC approach facilitates enhanced reversibility of Li metal deposition and dissolution, as well as stable galvanostatic cycling of LiNi0.8Mn0.1Co0.1O2 (NMC811)||Li cells. This approach provides a highly effective pathway for designing anion-derived SEI, offering new insights into the control of Li metal interfaces.","PeriodicalId":229,"journal":{"name":"Small Methods","volume":" ","pages":"e01449"},"PeriodicalIF":9.1,"publicationDate":"2025-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145084523","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

Single-Step Patterning of Biocompatible Neural Electrodes Using Black-Pt Functionalized Laser-Induced Graphene for in Vivo Electrophysiology. 利用黑铂功能化激光诱导石墨烯制备生物相容神经电极的单步模式。

IF 9.1 2区材料科学

Small Methods Pub Date : 2025-09-18 DOI: 10.1002/smtd.202501384

Giheon Kim, Yeonghwa Hong, Haeyun Lee, Minseok Kim, Jonghee Eun, Jimin Lee, Seungjun Lee, Namsun Chou, Hyogeun Shin

{"title":"Single-Step Patterning of Biocompatible Neural Electrodes Using Black-Pt Functionalized Laser-Induced Graphene for in Vivo Electrophysiology.","authors":"Giheon Kim, Yeonghwa Hong, Haeyun Lee, Minseok Kim, Jonghee Eun, Jimin Lee, Seungjun Lee, Namsun Chou, Hyogeun Shin","doi":"10.1002/smtd.202501384","DOIUrl":"https://doi.org/10.1002/smtd.202501384","url":null,"abstract":"Neural electrodes are essential tools for monitoring electrophysiological activity in the brain, driving advances in neuroscience and neurotechnology. However, conventional semiconductor-based fabrication techniques suffer from high costs, complex procedures, and limited adaptability for customized designs. Here, a single-step patterning, scalable method is presented for fabricating biocompatible neural electrodes using laser-induced graphene (LIG) patterned directly onto polyimide substrates. This process requires only a standard CO2 laser system, a spray-coated biocompatible lubricant, and black-Platinum (Pt) functionalization to form conductive traces, electrode sites, and connector pads-eliminating the need for cleanroom infrastructure or photolithography. Selective laser ablation enables precise electrode exposure, allowing rapid prototyping across various formats, including electroencephalography (EEG), electrocorticography (ECoG), and penetrating neural probes. The entire fabrication process is completed within 5 h, reducing production time and cost by over two orders of magnitude compared to conventional approaches. Demonstrating mechanical robustness, reliable signal acquisition, and biocompatibility, the fabricated electrodes exhibit high fidelity in recording EEG, ECoG, and spike signals in anesthetized mice. These findings underscore the method's strong potential for rapid prototyping of personalized brain-computer interfaces, neurological monitoring systems, and scalable preclinical research tools.","PeriodicalId":229,"journal":{"name":"Small Methods","volume":" ","pages":"e01384"},"PeriodicalIF":9.1,"publicationDate":"2025-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145079203","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

High Efficiency n-Type Electrochemical Doping of Homogeneous Polymeric Mixed Conductors by Aromatic Cation Insertion in Aqueous Electrolyte. 芳香族阳离子插入均相聚合物混合导体的高效n型电化学掺杂。

IF 9.1 2区材料科学

Small Methods Pub Date : 2025-09-18 DOI: 10.1002/smtd.202501365

Runxia Wang, Junxin Chen, Juntao Tan, Sairathna Choppella, Mahesh Kumar Ravva, Zhengke Li, Qingyao Cui, Mingfei Xiao, Tao Zhang, Wan Yue

{"title":"High Efficiency n-Type Electrochemical Doping of Homogeneous Polymeric Mixed Conductors by Aromatic Cation Insertion in Aqueous Electrolyte.","authors":"Runxia Wang, Junxin Chen, Juntao Tan, Sairathna Choppella, Mahesh Kumar Ravva, Zhengke Li, Qingyao Cui, Mingfei Xiao, Tao Zhang, Wan Yue","doi":"10.1002/smtd.202501365","DOIUrl":"https://doi.org/10.1002/smtd.202501365","url":null,"abstract":"Electrochemical doping is central to energy storage, neuromorphic computing, and biosensing, yet the mechanisms governing efficient n-type doping and ion-structure correlations remain poorly understood. Here, efficient n-type electrochemical doping is reported in the polymeric mixed conductor gDPP-tB0 through tailored organic cation interactions, investigated via cyclic voltammetry, in situ spectroelectrochemistry, grazing-incidence wide-angle X-ray scattering, and molecular dynamics simulations. Compared to the choline cation (Ch+) system, the 1-ethylpyridinium cation (EPy+) system exhibited superior doping kinetics, achieving a higher reduction current density (0.47 mA cm-2), faster ion diffusion coefficient (6.77 × 10-9 cm2 s-1), more pronounced polaron generation, and improved OECT performance (µC* up to 18.7 F cm-1 V-1 s-1). These improvements stem from EPy+'s preferential backbone localization, which minimizes polymer distortion, maintains high crystallinity, and optimizes ion-electron coupling, thus resulting in more efficient n-type electrochemical doping. Moreover, further gains in doping efficiency are realized by tuning the pyridyl cation concentration and alkyl chain length. The work reveals a new paradigm for efficient n-type electrochemical doping in polymeric mixed conductors via organic cation engineering, offering new insights into the rational design of ionic liquids for enhancing n-type electrochemical doping and accelerating the development of wearable bioelectronics.","PeriodicalId":229,"journal":{"name":"Small Methods","volume":" ","pages":"e01365"},"PeriodicalIF":9.1,"publicationDate":"2025-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145079193","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

Boosting Low-Temperature Ionic Conductivity in MOF-Based Solid-State Electrolytes via Tailored Fluoro-Ligand Incorporation Into Crystal Frameworks. 通过在晶体框架中加入量身定制的氟配体来提高mof基固态电解质的低温离子电导率。

IF 9.1 2区材料科学

Small Methods Pub Date : 2025-09-18 DOI: 10.1002/smtd.202501464

Lu Shi, Xin Wang, Zhiliang Liu

{"title":"Boosting Low-Temperature Ionic Conductivity in MOF-Based Solid-State Electrolytes via Tailored Fluoro-Ligand Incorporation Into Crystal Frameworks.","authors":"Lu Shi, Xin Wang, Zhiliang Liu","doi":"10.1002/smtd.202501464","DOIUrl":"https://doi.org/10.1002/smtd.202501464","url":null,"abstract":"The stable operation of solid-state electrolytes (SSEs) at low temperature is critical for expanding the application of solid-state lithium batteries (SSLBs) in cold climates. However, there are few relevant literature reports. Herein, a breakthrough is realized to directly address this challenge through tailored fluoro-ligand incorporation into the crystal framework of MOF-808. A series of fluorinated MOF-808 (MOF-808-хF, x = 3, 5, 7) are rationally constructed with fluorinated carboxylic acid of different chain lengths through fluorination engineering at the molecular level to precisely modulate the channels surface environment. Specifically, the chemical anchored F groups effectively promote the capture of anions and transport of Li+, while endowing the MOF-808 with excellent mechanical strength and flexibility, thereby improving the performances of SSEs in operation at low temperature. As a result, the optimized MOF-808-5F achieves remarkable ionic conductivity (1.25 × 10-4 S cm-1), high Li+ transference number (0.58) and wide electrochemical window (5.4 V) at -40 °C. Furthermore, fluorinated MOF-808 contributes to LiF solid electrolyte interphase (SEI) formation and effectively inhibits Li dendrites growth, enabling Li|MOF-808-5F|Li cell to realize a stable plating/stripping cycling over 1000 h at 0.2 mA cm-2. Such results provide an insight on the design of electrolytes for SSLBs operating under low temperatures.","PeriodicalId":229,"journal":{"name":"Small Methods","volume":" ","pages":"e01464"},"PeriodicalIF":9.1,"publicationDate":"2025-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145079209","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