Small Methods最新文献_第9页

Defect-Engineered Continuous 3D Single-Atom Catalysts for Enhanced Oxygen Reduction Performance. 缺陷工程连续3D单原子催化剂增强氧还原性能。

IF 9.1 2区材料科学

Small Methods Pub Date : 2025-08-16 DOI: 10.1002/smtd.202501260

Zhihao Chen, Shu Wang, Feng Du, Quan Li

{"title":"Defect-Engineered Continuous 3D Single-Atom Catalysts for Enhanced Oxygen Reduction Performance.","authors":"Zhihao Chen, Shu Wang, Feng Du, Quan Li","doi":"10.1002/smtd.202501260","DOIUrl":"https://doi.org/10.1002/smtd.202501260","url":null,"abstract":"In the presence of carbon-based substrates, the mobility of metal atoms is thermodynamically enhanced, leading to the aggregation of single atoms into clusters. To address this challenge, the coordination between isolated metal atoms and nitrogen (Nx) has been utilized to anchor single atoms and prevent aggregation. Among these structures, Fe─N4-C moieties, with atomic-level dispersion, demonstrate promising oxygen reduction reaction (ORR) catalytic activity. However, the strong adsorption of oxygen intermediates on the Fe active sites limits their intrinsic activity. To overcome this, a novel strategy utilizing nitrogen-coordinated Fe single atoms (Fe─N4) is developed to stabilize the metal atoms. Among these structures, the defect-engineered Fe─N4O configuration, Fe single-atom catalyst (Fe SAs/NPGN), is synthesized via ammonia-thermal etching, significantly boosting oxygen reduction reaction (ORR) catalytic performance by providing abundant active sites and a high specific surface area of 2054.39 m2 g-1. The defect-synergistic structure further tunes the electronic properties of the Fe sites, facilitating more efficient ORR activity, as validated by experimental results and theoretical calculations. This approach offers a promising pathway for advancing defect-engineered single-atom catalysts for energy applications.","PeriodicalId":229,"journal":{"name":"Small Methods","volume":" ","pages":"e01260"},"PeriodicalIF":9.1,"publicationDate":"2025-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144858677","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

Toward Flexible Low-Voltage Complementary Circuits with Solution-Deposited Organic Semiconductor Single-Crystal Films. 用溶液沉积的有机半导体单晶薄膜制备柔性低压互补电路。

IF 9.1 2区材料科学

Small Methods Pub Date : 2025-08-15 DOI: 10.1002/smtd.202501425

Yujie Zhao, Yang Zhang, Xinru Wang, Yu Ji, Qian Miao, Boyu Peng, Hanying Li

{"title":"Toward Flexible Low-Voltage Complementary Circuits with Solution-Deposited Organic Semiconductor Single-Crystal Films.","authors":"Yujie Zhao, Yang Zhang, Xinru Wang, Yu Ji, Qian Miao, Boyu Peng, Hanying Li","doi":"10.1002/smtd.202501425","DOIUrl":"https://doi.org/10.1002/smtd.202501425","url":null,"abstract":"Organic semiconductor single crystals (OSSCs) hold promising prospects in high-performance organic field-effect transistors (OFETs) owing to the advantages of longrange ordering and few defects. However, until now, OSSCs have not shown their strength in flexible complementary integrated circuits, partly due to the lack of high-quality dielectric layers suitable for both large-area crystal growth by solution method and the construction of high-performance n-channel and p-channel transistors simultaneously. Herein, flexible OFETs are fabricated with solution-processed large-area OSSCs and dual-crosslinked bilayer dielectrics, in which the bottom high-k polymer provides key dielectric properties and the top low-k polymer offers improved semiconductor/dielectric interface. Thus, both n-channel and p-channel OFETs with high mobility (electron mobility of 1.97 cm2V-1s-1 and hole mobility of 11.97 cm2V-1s-1), low threshold voltage and subthreshold swing are realized with operation voltage of only 5 V, which lead to complementary inverters with a high gain of 59.8 and large noise margins reaching 75% of 1/2 VDD. Moreover, the devices exhibit great electrical bias-stress stability within 10,000 s, and mechanical flexibility with bending stability up to 10,000 cycles. This efficient manufacturing method of flexible OFETs and complementary inverters with large-area OSSC films and bilayer dielectric paves the way toward high-performance and low-power-consumption flexible circuits.","PeriodicalId":229,"journal":{"name":"Small Methods","volume":" ","pages":"e01425"},"PeriodicalIF":9.1,"publicationDate":"2025-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144858727","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

Discrimination of Tryptophan Enantiomers at Sub-pm Level by Multiparametric Analysis of a Label-Free Organic Immunosensor. 无标记有机免疫传感器多参数分析对亚pm水平色氨酸对映体的鉴别。

IF 9.1 2区材料科学

Small Methods Pub Date : 2025-08-15 DOI: 10.1002/smtd.202500545

Matteo Genitoni, Pierpaolo Greco, Alessandro Paradisi, Matteo Sensi, Marcello Berto, Mauro Murgia, Michele Di Lauro, Carlo Augusto Bortolotti, Luciano Fadiga, Fabio Biscarini

{"title":"Discrimination of Tryptophan Enantiomers at Sub-pm Level by Multiparametric Analysis of a Label-Free Organic Immunosensor.","authors":"Matteo Genitoni, Pierpaolo Greco, Alessandro Paradisi, Matteo Sensi, Marcello Berto, Mauro Murgia, Michele Di Lauro, Carlo Augusto Bortolotti, Luciano Fadiga, Fabio Biscarini","doi":"10.1002/smtd.202500545","DOIUrl":"https://doi.org/10.1002/smtd.202500545","url":null,"abstract":"Electrolyte-gated organic transistors (EGOTs) exponentially amplify minute polarization changes at the gate electrode into the channel current. Antibodies grafted on the EGOT gate electrode enable specific recognition of target species, yet this strategy may not be sufficient per se to resolve the target from its antagonists. Here, a label-free EGOT immunosensor is functionalized with the antibody anti-L-enantiomer of Tryptophan (Trp), exhibiting sensitivity to Trp chirality. Nevertheless, the relative current change in transfer curves does not unambiguously differentiate L from D enantiomers in the concentration range 1 fm to 10 nm. To overcome this limitation, a multivariate principal component analysis (PCA) is applied on the set of renormalized parameters, extracted from the whole transfer curves according to our recent EGOT model: both L and D enantiomers are neatly separated by the sign of their principal components. Enantiomeric discrimination onset is 1 and 10 pm at 90% level of confidence and prediction, respectively, at least one order of magnitude lower than the enantiodiscrimination levels previously reported with EGOT biosensor. The same analysis performed on the best fit dose curves allows to discriminate L and D enantiomers down to the unprecedented level of detection of 100 fm.","PeriodicalId":229,"journal":{"name":"Small Methods","volume":" ","pages":"e2500545"},"PeriodicalIF":9.1,"publicationDate":"2025-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144858723","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

Operational and Environmental Stability Assessment of Silicon and Copper Phthalocyanine-Based OTFTs. 硅和铜酞菁基otft的运行和环境稳定性评价。

IF 9.1 2区材料科学

Small Methods Pub Date : 2025-08-15 DOI: 10.1002/smtd.202500782

Nicholas J Dallaire, Joonhyung Park, Raluchukwu B Ewenike, Halynne R Lamontagne, Chang-Hyun Kim, Benoît H Lessard

{"title":"Operational and Environmental Stability Assessment of Silicon and Copper Phthalocyanine-Based OTFTs.","authors":"Nicholas J Dallaire, Joonhyung Park, Raluchukwu B Ewenike, Halynne R Lamontagne, Chang-Hyun Kim, Benoît H Lessard","doi":"10.1002/smtd.202500782","DOIUrl":"https://doi.org/10.1002/smtd.202500782","url":null,"abstract":"When developing new materials for organic electronics, understanding how they will perform and change over time is critical. Typical bias stress exposure experiments provide limited information on the materials' performance in applications which involve multiple charging and discharging steps. Here, organic thin film transistors (OTFTs) are characterized for 48-72 h straight in air and in N2 using newly developed cyclic testing protocols that enable statistically significant evaluation of four different semiconductors by quantifying both, environmental and operational stress on their performance. It is demonstrated that the structure of the phthalocyanine leads to significant differences in response to bias stress, such as silicon bis(pentafluorophenoxy)phthalocyanine (F10-SiPc) showing a much more air-stable p-type device compared to copper phthalocyanine (CuPc) and bis(pentafluorophenoxy) hexadecafluoro silicon(iv) phthalocyanine (F5PhO)2-F16-SiPc showing much more air-stable n-type performance compared to Copper(II) 1,2,3,4,8,9,10,11,15,16,17,18,22,23,24,25-hexadecafluoro-29H,31H-phthalocyanine (F16-CuPc). Raman microscopy of the films revealed no changes in morphology. The devices are also modeled using the 2D finite-element method, which suggests that most changes in device performance are due to fixed charges at the semiconductor/insulator interface. Overall, OTFT stress testing demonstrates, that important structure property relationships can be established between semiconductor molecular structure and device performance.","PeriodicalId":229,"journal":{"name":"Small Methods","volume":" ","pages":"e00782"},"PeriodicalIF":9.1,"publicationDate":"2025-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144858726","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

Triple Regulation of Superhydrophilic-Superaerophobic Mo,V-NiS/Ni₃S₂ Heteronanoflowers for Efficient Bifunctional Water Splitting and Multi-Source Energy-Driven Hydrogen Production. 超亲水性-超疏水性Mo，V-NiS/Ni3S2异质花的三重调控高效双功能水分解和多源能源驱动制氢。

IF 9.1 2区材料科学

Small Methods Pub Date : 2025-08-15 DOI: 10.1002/smtd.202501181

Leihuan Mu, Jiehui Li, Qinghua Liu, Yuqing Wang, Pu Feng, Hui Liu, Cai-Li Sun, Xuedan Zhu, Jinmei He, Mengnan Qu

{"title":"Triple Regulation of Superhydrophilic-Superaerophobic Mo,V-NiS/Ni3S2 Heteronanoflowers for Efficient Bifunctional Water Splitting and Multi-Source Energy-Driven Hydrogen Production.","authors":"Leihuan Mu, Jiehui Li, Qinghua Liu, Yuqing Wang, Pu Feng, Hui Liu, Cai-Li Sun, Xuedan Zhu, Jinmei He, Mengnan Qu","doi":"10.1002/smtd.202501181","DOIUrl":"https://doi.org/10.1002/smtd.202501181","url":null,"abstract":"The urgent demand for sustainable energy has highlighted electrocatalytic water splitting as a key carbon-neutral technology. However, nickel sulfide-based catalysts face challenges of limited intrinsic activity and inefficient gas bubble release. Herein, a triple-engineering strategy constructs a hierarchical Mo, V-co-doped NiS/Ni3S2 heteronanoflower electrode in situ on nickel foam (NF) via a one-step hydrothermal synthesis. The synergistic effects of dual-atom doping and phase-separated heterointerfaces not only optimize electronic structure but also confer superhydrophilic and superaerophobic surface properties, significantly enhancing both hydrogen evolution reaction (HER; 55 mV@10 mA cm-2) and oxygen evolution reaction (OER; 185 mV@10 mA cm-2) kinetics. The resulting electrocatalyst drives overall water splitting at a low cell voltage of 1.48 V. Density functional theory (DFT) calculations elucidate that Mo/V doping induces strong Ni 3d-Mo/V 3d orbital hybridization, shifting down the d-band center and optimizing the adsorption free energies of H* and OOH* intermediates. Furthermore, experimental demonstrations confirm the feasibility of water electrolysis driven by mechanical, wind, and solar energies, introducing a novel mechanical-to-hydrogen energy conversion system using triboelectric nanogenerators (TENGs). This work integrates band structure modulation, interfacial engineering, and wettability regulation, advancing the design of bifunctional electrocatalysts for sustainable energy conversion.","PeriodicalId":229,"journal":{"name":"Small Methods","volume":" ","pages":"e01181"},"PeriodicalIF":9.1,"publicationDate":"2025-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144858728","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

Graphene-Directed Synthesis of Bicontinuous Core/Shell and Tubular Metal Nanostructures for Battery Electrodes. 石墨烯定向合成电池电极用双连续核/壳和管状金属纳米结构。

IF 9.1 2区材料科学

Small Methods Pub Date : 2025-08-15 DOI: 10.1002/smtd.202500787

Qi Li, Zejing Lin, Kangqing Tian, Kaiyue Zhang, Min Zhang, Ruixin Han, Shuangxi Song, Jiuhui Han

{"title":"Graphene-Directed Synthesis of Bicontinuous Core/Shell and Tubular Metal Nanostructures for Battery Electrodes.","authors":"Qi Li, Zejing Lin, Kangqing Tian, Kaiyue Zhang, Min Zhang, Ruixin Han, Shuangxi Song, Jiuhui Han","doi":"10.1002/smtd.202500787","DOIUrl":"https://doi.org/10.1002/smtd.202500787","url":null,"abstract":"Nanoporous metals with bicontinuous architecture offer attractive scaffolds for energy storage and catalysis, yet their limited porosity and structural tunability hinder broader applications. Here, a graphene-directed strategy is reported to construct hierarchical core/shell Ni/NiO and tubular metal nanostructures via controlled oxidation of nanoporous Ni. A conformal graphene coating stabilizes the underlying framework and governs oxidation through a product-layer diffusion-controlled shrinking-core mechanism. This enables the formation of tunable core/shell and hollow tubular architectures with exceptional porosity (up to ≈86%), controllable shell thickness, and well-preserved bicontinuous morphology over macroscopic scales. As electrodes for Li-ion batteries, the core/shell Ni/NiO exhibits a high reversible capacity (≈750 mAh g-1) and excellent cycling stability. Meanwhile, the reduced and displaced tubular Ru serves as a high-performance, carbon-free cathode for Li-O2 batteries, demonstrating low charge overpotentials, high energy efficiency (≈78%), and prolonged cycling over 200 cycles. This work offers a general and scalable route to engineer functional porous architectures with programmable structure and composition, holding broad promise for next-generation energy systems and beyond.","PeriodicalId":229,"journal":{"name":"Small Methods","volume":" ","pages":"e00787"},"PeriodicalIF":9.1,"publicationDate":"2025-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144858725","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 Effect of Mechanical Loading on Sprouting Angiogenesis from Engineered Macro-vessel Model. 机械负荷对工程大血管模型血管新生的影响。

IF 9.1 2区材料科学

Small Methods Pub Date : 2025-08-14 DOI: 10.1002/smtd.202500850

Lior Debbi, Oryan Karni Katovitch, Asaf Silverstein, Theodor Fuchs, Christopher S Chen, Shulamit Levenberg

{"title":"The Effect of Mechanical Loading on Sprouting Angiogenesis from Engineered Macro-vessel Model.","authors":"Lior Debbi, Oryan Karni Katovitch, Asaf Silverstein, Theodor Fuchs, Christopher S Chen, Shulamit Levenberg","doi":"10.1002/smtd.202500850","DOIUrl":"https://doi.org/10.1002/smtd.202500850","url":null,"abstract":"The influence of mechanical signals on sprouting angiogenesis has been of interest in the field of tissue engineering and biomechanics. Here, a unique experimental methodology is developed to apply mechanical loading on an engineered macro-vessel model to study the influence on angiogenic sprouting. The polydimethylsiloxane (PDMS) stretchable device contains an engineered macro-vessel embedded within a collagen matrix. The model is loaded either parallel or perpendicular to the macro-vessel (longitudinal or lateral, respectively). A finite element analysis is performed to characterize the strain maps of the PDMS-collagen setup. The results indicate high uniform strain around the macro-vessel perimeter under longitudinal loading, while lateral loading results in low strain in the horizontal direction and high strain along the vertical direction. Experimental results for lateral loading show increased sprouting events and capillary orientation in the stretch direction following the organization of matrix fibers, while longitudinal loading results in sprouting inhibition. These findings allow prediction of angiogenic sprouting under specified mechanical loading profiles and may serve as a tool to rationally design and control vascular network architecture by physical means. Finally, the presented approach can serve as a platform for studying cell behavior under mechanical loading for any physiological tubular duct or vessel model.","PeriodicalId":229,"journal":{"name":"Small Methods","volume":" ","pages":"e00850"},"PeriodicalIF":9.1,"publicationDate":"2025-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144843953","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

Modulation of Memristive Characteristics by Dynamic Nanoprecipitation Inside Conical Nanopores. 锥形纳米孔内动态纳米沉淀对忆阻特性的调制。

IF 9.1 2区材料科学

Small Methods Pub Date : 2025-08-14 DOI: 10.1002/smtd.202501205

Zhe Liu, Hongwen Zhang, Di Liu, Tianyi Sui, Yinghua Qiu

{"title":"Modulation of Memristive Characteristics by Dynamic Nanoprecipitation Inside Conical Nanopores.","authors":"Zhe Liu, Hongwen Zhang, Di Liu, Tianyi Sui, Yinghua Qiu","doi":"10.1002/smtd.202501205","DOIUrl":"https://doi.org/10.1002/smtd.202501205","url":null,"abstract":"Nanofluidic memristors have demonstrated great potential for neuromorphic system applications with the advantages of low energy consumption and excellent biocompatibility. Here, an effective way is developed to regulate the memristive behavior of conical nanopores by leveraging the reversible formation and dissolution of nanoprecipitates induced by ion enrichment and depletion in nanopores under opposite voltages. Through the interplay between precipitation dynamics at the pore tip and the ion enrichment/depletion inside the nanopore, conical nanopores exhibit pronounced current hysteresis loops in the presence of CaHPO4, a slightly soluble inorganic salt. The memristive characteristics are found to be strongly dependent on the concentration of CaHPO4, besides the applied voltage amplitude and scan rate. Under the stimulation of pulse voltages, ionic current demonstrates stable learning and forgetting processes with robust switching stability and effective reset capability, which is similar to the short-term plasticity characteristics of biological synapses. The research may provide a straightforward and tunable approach for the design of nanofluidic memristors.","PeriodicalId":229,"journal":{"name":"Small Methods","volume":" ","pages":"e01205"},"PeriodicalIF":9.1,"publicationDate":"2025-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144843951","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

Revealing Nanoscale Solute-Rich Clusters in Bulk Metallic Glasses by Atom Probe Tomography. 用原子探针层析技术揭示大块金属玻璃中纳米级富溶质团簇。

IF 9.1 2区材料科学

Small Methods Pub Date : 2025-08-14 DOI: 10.1002/smtd.202500980

Keita Nomoto, Huma Bilal, Bosong Li, Bernd Gludovatz, Christoph Gammer, Anton Hohenwarter, Jürgen Eckert, Jamie J Kruzic, Simon P Ringer

{"title":"Revealing Nanoscale Solute-Rich Clusters in Bulk Metallic Glasses by Atom Probe Tomography.","authors":"Keita Nomoto, Huma Bilal, Bosong Li, Bernd Gludovatz, Christoph Gammer, Anton Hohenwarter, Jürgen Eckert, Jamie J Kruzic, Simon P Ringer","doi":"10.1002/smtd.202500980","DOIUrl":"https://doi.org/10.1002/smtd.202500980","url":null,"abstract":"Bulk metallic glasses (BMGs) exhibit excellent mechanical properties due to their lack of long-range atomic ordering. However, understanding their structure-property relationships remains an unresolved challenge since traditional characterization methods have been unable to reveal the 3D nanostructures that control mechanical properties. In this study, a novel approach is developed that uses atom probe tomography (APT) cluster analysis to identify and visualize 3D nanoscale solute-rich clusters in Zr-based BMGs and quantify their size, composition, spatial distribution, and volume fraction. These results show that hardness variations in BMGs are driven by the volume fraction and distribution of solute-rich clusters. By inputting these experimentally determined parameters into a model for ductile phase softening, the deformation mechanisms of BMGs are elucidated as being controlled by the solute-rich clusters, and their possible relationship with topologically ordered short- and medium-range ordered clusters is discussed. This methodological breakthrough in characterizing structure-property relationships in metallic glasses is applicable to a wide range of multicomponent amorphous materials and is anticipated to enable major advances in glass science.","PeriodicalId":229,"journal":{"name":"Small Methods","volume":" ","pages":"e00980"},"PeriodicalIF":9.1,"publicationDate":"2025-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144843952","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

Workflow and Practical Guidance for Identical Location Scanning Electron Microscopy: Reliable Tracking of Localized Transformations. 相同位置扫描电子显微镜的工作流程和实用指南：本地化转换的可靠跟踪。

IF 9.1 2区材料科学

Small Methods Pub Date : 2025-08-13 DOI: 10.1002/smtd.202501290

Blaž Tomc, Marjan Bele, Ana Rebeka Kamšek, Milena Martins, Aleš Marsel, Miha Hotko, Stefan Popović, Gregor Kapun, Črtomir Donik, Mitja Kostelec, Matjaž Godec, Nejc Hodnik, Luka Suhadolnik

{"title":"Workflow and Practical Guidance for Identical Location Scanning Electron Microscopy: Reliable Tracking of Localized Transformations.","authors":"Blaž Tomc, Marjan Bele, Ana Rebeka Kamšek, Milena Martins, Aleš Marsel, Miha Hotko, Stefan Popović, Gregor Kapun, Črtomir Donik, Mitja Kostelec, Matjaž Godec, Nejc Hodnik, Luka Suhadolnik","doi":"10.1002/smtd.202501290","DOIUrl":"https://doi.org/10.1002/smtd.202501290","url":null,"abstract":"Understanding material transformations at the nano- and microscale is essential for advancing electrocatalysis, energy storage, and other applications. Conventional SEM imaging, which captures random locations before and after treatment, struggles to distinguish real transformations from inherent sample heterogeneity. Identical Location SEM (IL-SEM) overcomes this by enabling re-imaging of the exact same region, offering clear evidence of localized changes in morphology, structure, and composition. Despite its simplicity and wide applicability, IL-SEM remains underutilized. This article presents a detailed, practical guide to implementing IL-SEM reliably, including sample alignment, multiscale imaging, and consistent re-localization. Key methodological tips and solutions to common challenges are provided, making the approach accessible even for non-expert users. To showcase its versatility, we present case studies involving electrocatalysts, alloys, and nanostructured materials. Moreover, by integrating IL-SEM with energy-dispersive spectroscopy (EDS) and electron backscatter diffraction (EBSD), we demonstrate how compositional and crystallographic evolution can be tracked alongside morphological changes. This optimized workflow offers a powerful, non-destructive method for visualizing dynamic material behavior and provides a foundation for IL-SEM to become a standard technique for studying structural evolution across diverse materials research fields.","PeriodicalId":229,"journal":{"name":"Small Methods","volume":" ","pages":"e01290"},"PeriodicalIF":9.1,"publicationDate":"2025-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144833594","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