Chemistry of Materials最新文献_第6页

Towards Multiferroicity in Two-Dimensional Van Der Waals Materials: Challenges and Opportunities 二维范德华材料的多铁性：挑战与机遇

IF 8.6 2区材料科学

Chemistry of Materials Pub Date : 2025-07-10 DOI: 10.1021/acs.chemmater.5c01047

Zikun Tang, Yi Hu, Lukas Rogée, Duanzijing Liu, Shu Ping Lau

引用次数: 0

LuGaO3: A Polar Hexagonal Perovskite 一种极性六方钙钛矿

IF 8.6 2区材料科学

Chemistry of Materials Pub Date : 2025-07-10 DOI: 10.1021/acs.chemmater.5c01127

Jesse Schimpf, Saugata Sarker, Megha Acharya, Reed Yalisove, Venkatraman Gopalan, Lane W. Martin

{"title":"LuGaO3: A Polar Hexagonal Perovskite","authors":"Jesse Schimpf, Saugata Sarker, Megha Acharya, Reed Yalisove, Venkatraman Gopalan, Lane W. Martin","doi":"10.1021/acs.chemmater.5c01127","DOIUrl":"https://doi.org/10.1021/acs.chemmater.5c01127","url":null,"abstract":"Designing functional materials is a promising route to enhance modern technologies. Here, an unreported hexagonal perovskite, LuGaO3, is successfully synthesized in thin-film form, and its structure is characterized and compared to isostructural LuFeO3, along with solid solutions of the two (LuFexGa1–xO3, for x = 0.25–0.75). The addition of gallium was found to degrade the structural quality of LuFeO3, rendering the hexagonal phase nearly unobservable in pure LuGaO3. Extensive growth experiments (and thermodynamic phase diagrams for related systems) suggest a tendency for LuGaO3 to decompose into Lu2O3 and Lu3Ga5O12. In turn, unconventionally high synthesis pressures (500–2000 mTorr) during pulsed-laser deposition are required to stabilize the hexagonal phase. While device-based measurements demonstrate an obvious ferroelectric hysteresis for LuFeO3, the addition of gallium (seemingly) quenches any observable ferroelectric polarization while also lowering the leakage and dielectric constant. Second-harmonic-generation measurements and piezoresponse force microscopy, however, indicate that LuGaO3 is polar and can be switched under an electric field. This discrepancy with device-based measurements warrants further study, upon improving the structural quality, before ferroelectricity can be claimed unequivocally. These findings demonstrate that designer materials can be synthesized, but further refinement to predictive approaches is needed to bring them more in-line with experimental reality.","PeriodicalId":33,"journal":{"name":"Chemistry of Materials","volume":"7 1","pages":""},"PeriodicalIF":8.6,"publicationDate":"2025-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144622612","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

Co-assembly of Block Copolymers and Cobalt Ferrite Nanoparticles for Magnetic Material Design. 嵌段共聚物与钴铁氧体纳米颗粒共组装在磁性材料设计中的应用。

IF 7 2区材料科学

Chemistry of Materials Pub Date : 2025-07-10 eCollection Date: 2025-07-22 DOI: 10.1021/acs.chemmater.5c01442

Simone Bertucci, Andrea Escher, Gianluca Bravetti, Jean Pierre Miranda Murillo, Gianluca Mazzotta, Sawssen Slimani, Stefano Alberti, Paola Lova, Davide Comoretto, Ullrich Steiner, Davide Peddis, Andrea Dodero

{"title":"Co-assembly of Block Copolymers and Cobalt Ferrite Nanoparticles for Magnetic Material Design.","authors":"Simone Bertucci, Andrea Escher, Gianluca Bravetti, Jean Pierre Miranda Murillo, Gianluca Mazzotta, Sawssen Slimani, Stefano Alberti, Paola Lova, Davide Comoretto, Ullrich Steiner, Davide Peddis, Andrea Dodero","doi":"10.1021/acs.chemmater.5c01442","DOIUrl":"10.1021/acs.chemmater.5c01442","url":null,"abstract":"Hybrid materials that integrate photonic and magnetic functionalities are a major focus of next-generation nanotechnology, but their scalable production remains a significant challenge. Here, we present a facile strategy to produce hybrid photonic microparticles by coassembling poly-(styrene)-b-poly-(2-vinylpyridine) (PS-P2VP) block copolymers with 10 nm cobalt ferrite nanoparticles within emulsion droplets. This method allows the formation of highly ordered, hierarchical, onion-like structures with alternating concentric layers. Selective localization of the nanoparticles within P2VP domains preserves the periodicity essential for structural coloration while introducing tunable magnetic properties. Optical characterization confirms that the microparticles exhibit a vivid blue structural color and maintain a well-defined photonic bandgap up to a critical nanoparticle concentration, after which the structural order is disrupted. Remarkably, the nanostructure order of the polymer matrix induces a partial alignment of the magnetic easy axis of the nanoparticles, increasing the thermal stability of the magnetization (i.e., increase in the reduced remanent magnetization). This distinctive synergy between photonic and magnetic properties establishes a platform for multifunctional materials with potential applications in magnetically tunable photonic devices, advanced sensors, and responsive materials. The results demonstrate a scalable and versatile approach to fusing photonic architectures with functional nanomaterials, providing design opportunities for next-generation hybrid materials.","PeriodicalId":33,"journal":{"name":"Chemistry of Materials","volume":"37 14","pages":"5406-5416"},"PeriodicalIF":7.0,"publicationDate":"2025-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12288009/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144725978","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Magnetic Properties and Large Second-Harmonic Generation Response of a Chiral Ternary Chalcogenide: Eu2SiSe4 手性三元硫属化合物Eu2SiSe4的磁性和大二次谐波产生响应

IF 8.6 2区材料科学

Chemistry of Materials Pub Date : 2025-07-09 DOI: 10.1021/acs.chemmater.5c00421

Shaun O’Donnell, Ian A. Leahy, Subhendu Jana, Eric A. Gabilondo, P. Shiv Halasyamani, Paul A. Maggard, Rebecca W. Smaha

{"title":"Magnetic Properties and Large Second-Harmonic Generation Response of a Chiral Ternary Chalcogenide: Eu2SiSe4","authors":"Shaun O’Donnell, Ian A. Leahy, Subhendu Jana, Eric A. Gabilondo, P. Shiv Halasyamani, Paul A. Maggard, Rebecca W. Smaha","doi":"10.1021/acs.chemmater.5c00421","DOIUrl":"https://doi.org/10.1021/acs.chemmater.5c00421","url":null,"abstract":"Eu(II)-containing chalcogenides are an emerging class of materials that are of great interest due to their high optical activity and intriguing magnetism. Here, we synthesized Eu2SiSe4 as red-colored single crystals and characterized its structure with single-crystal X-ray diffraction, confirming the reported chiral monoclinic P21 symmetry at room temperature. The crystal structure of Eu2SiSe4 comprises distorted SiSe4 tetrahedral units and charge-balancing Eu(II) cations. Here, we develop a two-step solid-state synthesis method for Eu2SiSe4 and compare it to the known boron chalcogenide method. We find the second-harmonic generation (SHG) activity of polycrystalline Eu2SiSe4 to be ∼7 × AgGaS2, placing it among the highest-known SHG-active chalcogenides. No symmetry lowering is observed down to 100 K in single-crystal X-ray diffraction, although an anomalous expansion in the b-axis lattice parameter occurs and may be correlated to lattice modes of the SiSe4 tetrahedra. We investigate the physical properties of Eu2SiSe4 using magnetometry and heat capacity measurements and find a transition to an antiferromagnetic ground state at TN ≈ 5.5 K. The low-temperature transition releases less entropy than expected, which may be due to the complex crystal electric field effects of Eu(II).","PeriodicalId":33,"journal":{"name":"Chemistry of Materials","volume":"84 1","pages":""},"PeriodicalIF":8.6,"publicationDate":"2025-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144622613","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

Superconducting Vacancy-Ordered Rock-Salt NbO Films 超导空位有序岩盐NbO薄膜

IF 8.6 2区材料科学

Chemistry of Materials Pub Date : 2025-07-09 DOI: 10.1021/acs.chemmater.5c01074

Jeong Rae Kim, Sandra Glotzer, Evan Krysko, Matthew R. Barone, Jinkwon Kim, Salva Salmani-Rezaie, Adrian Llanos, Joseph Falson

引用次数: 0

Multistimulus-Responsive Chromic Textile for Smart Wearable Display, Sensor, and Camouflage 用于智能可穿戴显示器、传感器和伪装的多刺激响应彩色纺织品

IF 8.6 2区材料科学

Chemistry of Materials Pub Date : 2025-07-09 DOI: 10.1021/acs.chemmater.5c00752

Tianle Zhang, Wenwen Wu, Wenkun Fei, Yuxiang Zhang, Ruihe Zhu, Tongqing Zhou, Shujuan Liu, Yun Ma, Jianmin Li, Qiang Zhao

{"title":"Multistimulus-Responsive Chromic Textile for Smart Wearable Display, Sensor, and Camouflage","authors":"Tianle Zhang, Wenwen Wu, Wenkun Fei, Yuxiang Zhang, Ruihe Zhu, Tongqing Zhou, Shujuan Liu, Yun Ma, Jianmin Li, Qiang Zhao","doi":"10.1021/acs.chemmater.5c00752","DOIUrl":"https://doi.org/10.1021/acs.chemmater.5c00752","url":null,"abstract":"The development of multiresponsive chromic cloth, showing color change under various external stimuli, has shown promising potential for next-generation flexible and wearable sensors, displays, and military camouflage. However, the single-trigger behavior, complex device structure, and manufacturing of existing chromic devices hinder their diverse applications. Herein, stimulus-responsive polychromic textiles are developed by coupling multiple energy conversion effects and thermochromic phenomena onto a single cotton fabric. Benefiting from the superior photothermal and Joule heating effects of two-dimensional Ti3C2Tx MXene, the prepared textiles show a fast and durable color change under external light, thermal, and voltage triggers. A color change speed of less than 4 s is achieved under thermal and voltage triggers, with color change within 10 s under low-intensity visible light. Additionally, the textiles exhibit good comfort for wearable applications, with excellent breathability (a water vapor permeability of 3981 g/m2·day), abrasion resistance (withstanding over 1000 friction cycles), and washability. The prepared contactless chromic textiles hold great potential for wearable displays, light-sensitive writing boards, and camouflage applications, showcasing a promising future for multistimulus-responsive textiles.","PeriodicalId":33,"journal":{"name":"Chemistry of Materials","volume":"14 1","pages":""},"PeriodicalIF":8.6,"publicationDate":"2025-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144622615","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

On the Structural Origin of Fast Li-Ion Cycling in Tetragonal Bronze-Type Nb₈W₉O₄₇. 四方青铜型Nb8W9O47中锂离子快速循环的结构成因。

IF 7 2区材料科学

Chemistry of Materials Pub Date : 2025-07-09 eCollection Date: 2025-07-22 DOI: 10.1021/acs.chemmater.5c00827

Jessica L Andrews, Michael J Brady, Colin T Morrell, Kenneth K Jew, Sophie Sloan, Kimberly A See, Brent C Melot

{"title":"On the Structural Origin of Fast Li-Ion Cycling in Tetragonal Bronze-Type Nb8W9O47.","authors":"Jessica L Andrews, Michael J Brady, Colin T Morrell, Kenneth K Jew, Sophie Sloan, Kimberly A See, Brent C Melot","doi":"10.1021/acs.chemmater.5c00827","DOIUrl":"10.1021/acs.chemmater.5c00827","url":null,"abstract":"Bronze and bronze-derived, mixed metal oxides are materials of growing interest for lithium-ion battery anodes due to their high-rate capabilities and the potential for high energy densities via multielectron redox. We report on the synthesis and electrochemical properties of the tetragonal tungsten bronze-type phase Nb8W9O47 and our investigation into the structural evolution of this phase upon lithium (de)-intercalation, with particular attention to how it relates to the fast-cycling capabilities. Electrochemical cycling shows Nb8W9O47 can achieve greater than one Li+ per transition metal at rates of C/2 or slower and maintains a capacity equivalent to 0.65 Li+ per transition metal at a rate of 20C. Sequential Rietveld analysis of operando X-ray diffraction data reveals anisotropic changes to the unit cell parameters during discharge, accompanied by an off-centering of the transition metals within their octahedral environments. While higher capacities can be accessed below 1.2 V, cells discharged to 1.0 V exhibit a significant expansion of the unit cell volume and reduced Coulombic efficiencies. This report suggests that rigid crystal structures incapable of undergoing polyhedral rotational deformations can instead exploit displacive distortions of the transition metal redox center to enable fast Li-ion cycling with minimal atomic rearrangements.","PeriodicalId":33,"journal":{"name":"Chemistry of Materials","volume":"37 14","pages":"5158-5166"},"PeriodicalIF":7.0,"publicationDate":"2025-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12288002/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144725980","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

IF 7.2 2区材料科学

Chemistry of Materials Pub Date : 2025-07-08

Gregory Morrison, Ethan N. Adams, Virginia G. Jones, K. Pilar Zamorano and Hans-Conrad zur Loye*,

引用次数: 0

IF 7.2 2区材料科学

Chemistry of Materials Pub Date : 2025-07-08

Chenghao Xie, Yuting Fan, Zhiying Liu, Minghao Ye, Jiabei Liu, Guoqing Ding, Junxi Mei, Qingjie Zhang, Xinfeng Tang and Gangjian Tan*,

引用次数: 0

IF 7.2 2区材料科学

Chemistry of Materials Pub Date : 2025-07-08

André Wark, Thorsten O. Schmidt, Richard W. Haid, Regina M. Kluge, Shinya Suzuki, Zyun Siroma, Egill Skúlason*, Aliaksandr S. Bandarenka* and Jun Maruyama*,

引用次数: 0