Materials Today Nano最新文献

High-performance flexible all-solid-state supercapacitors integrated with self-healing hydrogel electrolyte and silver nanowire electrodes

IF 8.2 2区材料科学

Materials Today Nano Pub Date : 2025-04-03 DOI: 10.1016/j.mtnano.2025.100619

Chuyu Yu , Songwen Fang , Yulian Chen , Xuehu Wu , Rudan Xu , Yue Chen , Yulin Feng , Bin Shi , Qiunuan Li , Zhong Cao , Julan Zeng , Lixian Sun , Fen Xu , Hongge Pan

{"title":"High-performance flexible all-solid-state supercapacitors integrated with self-healing hydrogel electrolyte and silver nanowire electrodes","authors":"Chuyu Yu , Songwen Fang , Yulian Chen , Xuehu Wu , Rudan Xu , Yue Chen , Yulin Feng , Bin Shi , Qiunuan Li , Zhong Cao , Julan Zeng , Lixian Sun , Fen Xu , Hongge Pan","doi":"10.1016/j.mtnano.2025.100619","DOIUrl":"10.1016/j.mtnano.2025.100619","url":null,"abstract":"<div><div>Manufacturing highly chemically stable and flexible all-solid-state supercapacitors (ASCs) is still a challenge, especially for portable applications subjected to mechanical stress. In this work, the electrolyte, prepared from cellulose nanofibers reinforced with gel substrates of polyvinyl alcohol and aqueous polyurethane, exhibits exceptional self-healing properties and high elasticity (stretchable up to 553 %). On the other hand, the electrode material, prepared by adding silver nanowires into aqueous polyurethane, demonstrates a high surface capacitance (578 mF cm<sup>−2</sup>) and excellent transparency. The ASC, constructed based on their integration, exhibits good energy/power density (19.5 μWh cm<sup>−2</sup>/503.7 μW cm<sup>−2</sup>), along with a high surface capacitance (390 mF cm<sup>−2</sup>) due to the strong stability and compatibility between the electrodes and the electrolyte. Furthermore, it displays excellent chemical stability, with minimal loss of electrical capacitance under various bending conditions. This work provides design inspiration for developing reliable energy storage devices with significant potential for integration into wearable applications.</div></div>","PeriodicalId":48517,"journal":{"name":"Materials Today Nano","volume":"30 ","pages":"Article 100619"},"PeriodicalIF":8.2,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143786058","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

Defect chemistry-regulated design of doping CeO2 with the enhanced high-temperature low infrared emissivity property

IF 8.2 2区材料科学

Materials Today Nano Pub Date : 2025-04-02 DOI: 10.1016/j.mtnano.2025.100614

Xingyu Hao , Guoke Wei , Hang Zhang , Shujuan Tan , Guangbin Ji

{"title":"Defect chemistry-regulated design of doping CeO2 with the enhanced high-temperature low infrared emissivity property","authors":"Xingyu Hao , Guoke Wei , Hang Zhang , Shujuan Tan , Guangbin Ji","doi":"10.1016/j.mtnano.2025.100614","DOIUrl":"10.1016/j.mtnano.2025.100614","url":null,"abstract":"<div><div>Currently, CeO<sub>2</sub> has attracted much attention due to its excellent high-temperature emissivity tunable properties, but the synergistic regulation mechanism of oxygen vacancy concentration and bandgap structure by bi-ionic doping is unclear. In this work, Sm<sup>3+</sup>/Ca<sup>2+</sup> co-doped CeO<sub>2</sub>-based materials were prepared by high-temperature solid-phase method (Ce<sub>0.8</sub>Sm<sub>2-x</sub>Ca<sub>x</sub>O<sub>2-δ</sub>), revealing the synergistic enhancement effect of double-ion doping on lattice distortion, oxygen vacancy formation and carrier migration. It is shown that Ca<sup>2+</sup>/Sm<sup>3+</sup> co-doping efficiently induces oxygen vacancy generation, while Sm<sup>3+</sup> suppresses the lattice distortion and narrows the bandgap (2.905 eV) by reducing the difference in ionic radii, and the synergistic effect of the two doubles the high-temperature conductivity. The IR emissivity of the optimized sample is as low as 0.208 at 600 °C. This study provides a new strategy and theoretical support for the chemical design of defects in high-temperature IR stealth materials.</div></div>","PeriodicalId":48517,"journal":{"name":"Materials Today Nano","volume":"30 ","pages":"Article 100614"},"PeriodicalIF":8.2,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143769108","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

Advancements in 2D-TMD heterostructures for next generation electronic chemical sensors

IF 8.2 2区材料科学

Materials Today Nano Pub Date : 2025-04-01 DOI: 10.1016/j.mtnano.2025.100615

Julaiba Tahsina Mazumder , Tushar Shivam , Arindam Majhi , Rajesh Kumar Jha , Moti Kumar Jha , Supriya Khatoniar , Shubham Pandey , Ravindra Kumar Jha

{"title":"Advancements in 2D-TMD heterostructures for next generation electronic chemical sensors","authors":"Julaiba Tahsina Mazumder , Tushar Shivam , Arindam Majhi , Rajesh Kumar Jha , Moti Kumar Jha , Supriya Khatoniar , Shubham Pandey , Ravindra Kumar Jha","doi":"10.1016/j.mtnano.2025.100615","DOIUrl":"10.1016/j.mtnano.2025.100615","url":null,"abstract":"<div><div>Transition metal dichalcogenides (TMDs) have emerged as ubiquitous materials for next-generation electronic chemical sensors, offering exceptional electronic, chemical, optical, and mechanical properties. While pristine TMDs present a great avenue for chemical sensing, they grapple with inevitable flaws when integrated with existing electronic device technologies. These challenges can be explicated using interface engineering through heterostructure formation. This review offers a comprehensive analysis of significant progress in this burgeoning field, emphasizing key innovations in the performance of such sensors in terms of sensitivity, selectivity, power efficiency, and others. The article begins with an introduction that outlines the significance of TMDs and the need for low-power sensors in various technological contexts. Subsequently, the key challenges in TMD-based sensors and their viable contemporary solutions are discussed with a particular focus on materials forming heterostructures with TMD, the role of the materials' dimensionality, their use in different forms of electronic devices, and their applications in gas sensing, pH sensing, and heavy metal detection. Lastly, the conclusion and future scope section outlines potential avenues for the unfathomed development and optimization of TMDs in the realm of chemical sensing.</div></div>","PeriodicalId":48517,"journal":{"name":"Materials Today Nano","volume":"30 ","pages":"Article 100615"},"PeriodicalIF":8.2,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143769107","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

An oriented layered Nano-CaCO3 with enhanced fire resistance and acoustic insulation performance for building insulation

IF 8.2 2区材料科学

Materials Today Nano Pub Date : 2025-03-27 DOI: 10.1016/j.mtnano.2025.100613

Yue Wang, Chanchan Yuan, Qiang Rong, Tao Ding, Qichun Feng, Zhaofang Du

{"title":"An oriented layered Nano-CaCO3 with enhanced fire resistance and acoustic insulation performance for building insulation","authors":"Yue Wang, Chanchan Yuan, Qiang Rong, Tao Ding, Qichun Feng, Zhaofang Du","doi":"10.1016/j.mtnano.2025.100613","DOIUrl":"10.1016/j.mtnano.2025.100613","url":null,"abstract":"<div><div>Contemporary building insulation materials not only require low thermal conductivity but also need to possess high flame retardancy and excellent acoustic insulation properties. Typically, organic materials excel in thermal and acoustic insulation, while inorganic insulation materials demonstrate superior flame retardancy. Therefore, combining the advantages of organic and inorganic materials to achieve high insulation, excellent flame retardancy, and acoustic insulation performance is of great significance but remains challenging. Herein, a strategy driven by coordination bonds is proposed to form a nano-CaCO<sub>3</sub> composite chitosan (CS) oriented layered structure, which is used to prepare Flame-retardant Nano-CaCO<sub>3</sub>/oriented Layered Chitosan composites (FNCLC). Benefiting from the stability of the lamellar structure, the prepared FNCLC exhibits excellent mechanical properties. The gaps in the oriented lamellar structure contain a large amount of air, which interrupts the solid heat transfer path, resulting in excellent insulation performance (0.096 W m<sup>−1</sup> K<sup>−1</sup>). The nano-CaCO<sub>3</sub> endows FNCLC with superior flame retardancy, with a limiting oxygen index (LOI) of up to 99.12 %. Additionally, the oriented lamellar structure effectively reflects sound, with FNCLC achieving acoustic insulation exceeding 40 dB in the mid-frequency range. Thus, this strategy of using coordination bonds to drive nano-CaCO<sub>3</sub> composite CS oriented lamellar structures provides new insights for constructing building insulation materials.</div></div>","PeriodicalId":48517,"journal":{"name":"Materials Today Nano","volume":"30 ","pages":"Article 100613"},"PeriodicalIF":8.2,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143738073","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

Optimised synthesis of Ni-Co hydroxide nanosheets: Effects on structural and electrochemical properties

IF 8.2 2区材料科学

Materials Today Nano Pub Date : 2025-03-25 DOI: 10.1016/j.mtnano.2025.100612

Minjeong Lee , Yeongeun Jang , Seunghwa Lee , Gyeong Hee Ryu

{"title":"Optimised synthesis of Ni-Co hydroxide nanosheets: Effects on structural and electrochemical properties","authors":"Minjeong Lee , Yeongeun Jang , Seunghwa Lee , Gyeong Hee Ryu","doi":"10.1016/j.mtnano.2025.100612","DOIUrl":"10.1016/j.mtnano.2025.100612","url":null,"abstract":"<div><div>Transition metal hydroxides exhibit significant potential as electrocatalysts, with their structural and electrochemical properties being highly dependent on the cation precursors. Metal hydroxides composed of two or more cations improve the structural and electrochemical properties by synergistically combining the advantages of metal hydroxides composed of cations of a single element. We synthesized Ni-Co hydroxide nanosheets at an air–water interface using a surfactant-assisted method and optimised the synthesis conditions by varying the component ratios. The synthesized Ni-Co hydroxide nanosheets exhibited various shapes depending on the Ni:Co ratio, transforming from hexagonal to triangular as the Co ratio increased. All nanosheets had an ultrathin thickness of less than 5 nm. The X-ray photoelectron spectroscopy analysis revealed that the Ni 2p spectrum of the sample with a 5:5 ratio exhibited different characteristics, and the hydroxide ratio was higher than that of the other samples. This finding indicated enhanced hydrophilicity of the sample. Owing to these characteristics, the (Ni:Co) 5:5 sample exhibited superior performance.</div></div>","PeriodicalId":48517,"journal":{"name":"Materials Today Nano","volume":"30 ","pages":"Article 100612"},"PeriodicalIF":8.2,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143714244","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

Quasihomogeneous wafer bonding for fusing dissimilar materials via nanoscale homogenization layer deposition

IF 8.2 2区材料科学

Materials Today Nano Pub Date : 2025-03-22 DOI: 10.1016/j.mtnano.2025.100611

Wei-Chi Huang , Jian-Long Ruan , Yang-Kuao Kuo , Benjamin Tien-Hsi Lee

{"title":"Quasihomogeneous wafer bonding for fusing dissimilar materials via nanoscale homogenization layer deposition","authors":"Wei-Chi Huang , Jian-Long Ruan , Yang-Kuao Kuo , Benjamin Tien-Hsi Lee","doi":"10.1016/j.mtnano.2025.100611","DOIUrl":"10.1016/j.mtnano.2025.100611","url":null,"abstract":"<div><div>Hybrid bonding, which is partially based on heterogeneous wafer bonding, is a critical process for integrating various functional devices onto a chip, advancing cutting-edge technologies. However, heterogeneous wafer bonding often faces challenges due to mismatches in the physical and chemical properties of dissimilar materials. This study demonstrates the transformation of heterogeneous wafer bonding into quasihomogeneous wafer bonding via a nanoscale homogenization layer, which significantly enhances bonding compatibility. High-energy sputtering is used to deposit aluminum nitride (AlN) atomic clusters onto silicon carbide (SiC) surfaces, forming a nanoscale AlN layer that enhances bondability by increasing the density of dangling bonds through surface-to-volume effects. This homogenization approach also induces strong capillary forces, driven by the nanoscale surface effect, to enable robust bonding on surfaces with a roughness exceeding 5 Å. By addressing critical barriers in SiC and AlN integration, this quasihomogeneous bonding technique facilitates strong fusion bonding between chemically incompatible surfaces. This study underscores the transformative potential of nanotechnology in wafer bonding technology, providing insights into enhancing hydrophilic bonding capabilities. Furthermore, it offers a scalable solution for semiconductor packaging and high-performance electronic or ceramic material applications, paving the way for advanced wafer-to-wafer and chip-on-wafer hybrid bonding technologies.</div></div>","PeriodicalId":48517,"journal":{"name":"Materials Today Nano","volume":"30 ","pages":"Article 100611"},"PeriodicalIF":8.2,"publicationDate":"2025-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143684326","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

Hierarchical MnO2 nanosheets decorated on hollow co/N-doped carbon toward superior electromagnetic wave absorption

IF 8.2 2区材料科学

Materials Today Nano Pub Date : 2025-03-11 DOI: 10.1016/j.mtnano.2025.100609

Chenhao Wei, Sihan Liu, Chenyu Wang, Zizhuang He, Panbo Liu, Mukun He, Junwei Gu

{"title":"Hierarchical MnO2 nanosheets decorated on hollow co/N-doped carbon toward superior electromagnetic wave absorption","authors":"Chenhao Wei, Sihan Liu, Chenyu Wang, Zizhuang He, Panbo Liu, Mukun He, Junwei Gu","doi":"10.1016/j.mtnano.2025.100609","DOIUrl":"10.1016/j.mtnano.2025.100609","url":null,"abstract":"<div><div>Hierarchical construction and hetero-interfaces design are considered as the promising strategies in improving electromagnetic (EM) wave absorption intensity and broadening absorption bandwidth for metal-organic-frameworks (MOFs) derivatives, but still face challenges in regulating the profitable morphologies. Herein, a self-assembly strategy coupling with a subsequent hydrothermal process have been employed to fabricate hollow Co/N-doped carbon@MnO<sub>2</sub> (H-Co/NC@MnO<sub>2</sub>) composites with hierarchical microstructures and abundant hetero-interfaces. The results indicated that H-Co/NC is constructed by the accumulation of abundant MOFs derivatives without interactions, and the amount of KMnO<sub>4</sub> plays an important role in manipulating hierarchical MnO<sub>2</sub> nanosheets and optimizing EM wave absorption. Benefiting from the cooperative merits of hierarchical microstructures, multiple hetero-interfaces and the EM synergy, the maximum reflection loss of H-Co/NC@MnO<sub>2</sub> is as high as −60.2 dB at 3.7 mm and the absorption bandwidth achieves 8.6 GHz with a thickness of 4 mm. This study inspires us a new avenue to regulate the EM wave absorption of MOFs derivatives by hierarchical construction and hetero-interfaces design.</div></div>","PeriodicalId":48517,"journal":{"name":"Materials Today Nano","volume":"30 ","pages":"Article 100609"},"PeriodicalIF":8.2,"publicationDate":"2025-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143610411","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

Study on grain size dependence of shape memory effect in nanocrystalline NiTi shape memory alloys with grain size below 20 nm based on molecular dynamics simulation 基于分子动力学模拟研究晶粒尺寸低于 20 纳米的纳米晶镍钛形状记忆合金中形状记忆效应的晶粒尺寸依赖性

IF 8.2 2区材料科学

Materials Today Nano Pub Date : 2025-03-10 DOI: 10.1016/j.mtnano.2025.100610

Yanqiu Zhang , Kairui Guo , Weiqiang Yu , Jinlei Liu , Peng Lin , Shuyong Jiang

{"title":"Study on grain size dependence of shape memory effect in nanocrystalline NiTi shape memory alloys with grain size below 20 nm based on molecular dynamics simulation","authors":"Yanqiu Zhang , Kairui Guo , Weiqiang Yu , Jinlei Liu , Peng Lin , Shuyong Jiang","doi":"10.1016/j.mtnano.2025.100610","DOIUrl":"10.1016/j.mtnano.2025.100610","url":null,"abstract":"<div><div>Behaviors of grain size (GS)-dependent shape memory effect in nanocrystalline NiTi shape memory alloys (SMAs) with GS below 20 nm were studied using molecular dynamics (MD) simulation and involved mechanisms were analyzed. Based on MD simulations, we hypothesize that the constraint of grain boundaries (GBs) may lead to increased stiffness near GBs compared with coarse-grained ones, forming rigid regions. Therefore, driving force aroused by the decrease of temperature is not sufficient to make intracrystalline austenite undergo martensitic transformation through shear deformation. With the decrease of GS, fraction of hypothesized rigid region increases, while fraction of hypothesized flexible region decreases, resulting in a decrease in the number of martensite nuclei and a reduction in martensite fraction. In the loading process, both martensite reorientation of accommodated variants and stress-induced martensite transformation of retained austenite occur in the alloy with larger GS, while only stress-induced martensite transformation occurs in alloys with GS below 10 nm, leading to an increased martensite fraction in all alloys. In addition, plateau stress rises with reducing GS and dramatic hardening effect occurs when the GS is below 10 nm. During the unloading process, reverse martensite transition occurs in partial stress-induced martensite formed during loading and fraction of reversed martensite rises with reducing GS. When heated, the fraction of martensite in unloaded nanocrystalline NiTi SMAs decreases sharply, resulting in a drastic drop in strain, and the shape memory effect strain decreases with decreasing GS because fraction of martensite decreases with the reduction of GS.</div></div>","PeriodicalId":48517,"journal":{"name":"Materials Today Nano","volume":"30 ","pages":"Article 100610"},"PeriodicalIF":8.2,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143610410","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

Flexible ultrabroadband near-perfect absorber enabled by synergistic effects of cavity mode overlap and broadband anti-reflection

IF 8.2 2区材料科学

Materials Today Nano Pub Date : 2025-03-07 DOI: 10.1016/j.mtnano.2025.100608

Hyeonwoo Kim , Incheol Jung , Cheolhun Kang , Donggyu Lim , Seongcheol Ju , Dohyun Kim , Jong Hoon Jung , Jong G. Ok , Jaewon Choi , Kyu-Tae Lee

{"title":"Flexible ultrabroadband near-perfect absorber enabled by synergistic effects of cavity mode overlap and broadband anti-reflection","authors":"Hyeonwoo Kim , Incheol Jung , Cheolhun Kang , Donggyu Lim , Seongcheol Ju , Dohyun Kim , Jong Hoon Jung , Jong G. Ok , Jaewon Choi , Kyu-Tae Lee","doi":"10.1016/j.mtnano.2025.100608","DOIUrl":"10.1016/j.mtnano.2025.100608","url":null,"abstract":"<div><div>Achieving ultrabroadband, polarization- and angle-insensitive light absorption in a flexible structure is critical for advanced applications in thermoelectrics, detection, and imaging, yet remains a significant challenge. Here, we present a flexible ultrabroadband near-perfect absorber (UNPA) that addresses this challenge by leveraging the synergistic effects of overlapping resonances in multiple cavities and broadband anti-reflection (AR) properties in slanted columnar nanostructures. The graded-index (GRIN) distribution of the structure facilitates efficient light trapping, enabling an average absorption of ∼98 % across 400–2000 nm. To optimize material combinations and layer thicknesses, we employ an inverse design method integrating an exhaustive search with a quasi-Newton approach, ensuring optimal absorption performance. The UNPA also demonstrates exceptional angle insensitivity, maintaining 92 % average absorption at incidence angles up to 60°, regardless of polarization. Additionally, it exhibits remarkable mechanical robustness, retaining its absorption efficiency after 5000 bending cycles and sustaining performance at a bending radius of 5 mm. By combining ultrabroadband absorption, mechanical flexibility, and angle insensitivity, this work provides a scalable and practical solution for next-generation energy harvesting, sensing, and optical applications.</div></div>","PeriodicalId":48517,"journal":{"name":"Materials Today Nano","volume":"30 ","pages":"Article 100608"},"PeriodicalIF":8.2,"publicationDate":"2025-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143593911","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

Scalable mechanical exfoliation of two-dimensional nanosheets by polymer-assisted dry ball-mill of layered materials and insights from machine learning

IF 8.2 2区材料科学

Materials Today Nano Pub Date : 2025-03-06 DOI: 10.1016/j.mtnano.2025.100604

Jing Zhang , Tianshu Zhai , Yunrui Yan, Qiyi Fang, Yifeng Liu, Yifan Zhu, Weiran Tu, Chen-Yang Lin, Yuguo Wang, Jun Lou

{"title":"Scalable mechanical exfoliation of two-dimensional nanosheets by polymer-assisted dry ball-mill of layered materials and insights from machine learning","authors":"Jing Zhang , Tianshu Zhai , Yunrui Yan, Qiyi Fang, Yifeng Liu, Yifan Zhu, Weiran Tu, Chen-Yang Lin, Yuguo Wang, Jun Lou","doi":"10.1016/j.mtnano.2025.100604","DOIUrl":"10.1016/j.mtnano.2025.100604","url":null,"abstract":"<div><div>To fully capitalize on the unique properties of 2D materials, cost-effective techniques for producing high-quality 2D flakes at scale are crucial. In this work, we show that dry ball-milling, a commonly used powder-processing technique, can be effectively and efficiently upgraded into an automated exfoliation technique. It is done by adding polymer as adhesives into a ball mill to mimic the well-known tape exfoliation process, which is known to produce 2D flakes with the highest quality but is limited by its extremely low efficiency on large-scale production. Seventeen types of commonly seen polymers, including both artificial and natural ones, have been examined as additives to dry ball-mill hexagonal boron nitride. A parallel comparison between different additives identifies low-cost natural polymers such as starch as promising dry ball-mill additives to produce ultrathin flakes with the largest aspect ratio. The mechanical, thermal, and surface properties of the polymers are proposed as key features that simultaneously determine the exfoliation efficiency, and their ranking of importance in the mechanical exfoliation process is revealed using a machine learning model. Finally, the potential of the polymer-assisted ball-mill exfoliation method as a universal way to produce ultra-thin 2D nanosheets is also demonstrated.</div></div>","PeriodicalId":48517,"journal":{"name":"Materials Today Nano","volume":"30 ","pages":"Article 100604"},"PeriodicalIF":8.2,"publicationDate":"2025-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143637091","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