IF 4.8 2区材料科学

Intermetallics Pub Date : 2025-08-17 DOI: 10.1016/j.intermet.2025.108964

Lijun Wang , Lulu Guo , Huicong Chen , Chenwei Shao , Zhaoying Ding , Hyun Suk Choi , Maxx Yao , Yu Zou

{"title":"Boron-induced microstructure evolution and related wear behavior in NbMoTaWBx high-entropy alloys and composites at room and elevated temperatures","authors":"Lijun Wang , Lulu Guo , Huicong Chen , Chenwei Shao , Zhaoying Ding , Hyun Suk Choi , Maxx Yao , Yu Zou","doi":"10.1016/j.intermet.2025.108964","DOIUrl":"10.1016/j.intermet.2025.108964","url":null,"abstract":"<div><div>Refractory high entropy alloys (RHEAs) such as NbMoTaW exhibit potential for wear-resistant applications due to their high hardness and thermal stability at elevated temperatures. The addition of boron (B) may lead to a transformation from RHEAs into refractory high entropy composites (RHECs) due to the formation of hard boride phases. This transition is anticipated to significantly increase the hardness and wear resistance over a large temperature range. In this study, we investigate the impact of boride reinforcements on the microstructure and wear performance of the NbMoTaWBx (x = 0–2) at room and elevated temperatures up to 600 °C. The results show the following: (i) The microstructure evolves from a dendritic microstructure to a complex microstructure with eutectic phase, dispersed body-centered cubic (BCC) particles and boride phases, showing the transition from RHEAs to RHECs; (ii) At room temperature, the wear rate decreases with increasing boron content, with abrasive wear as the primary mode and oxidation wear as minor contribution; (iii) At 600 °C, the wear rate increases with increasing boron content, and the dominant wear mode is oxidation-abrasion.</div></div>","PeriodicalId":331,"journal":{"name":"Intermetallics","volume":"186 ","pages":"Article 108964"},"PeriodicalIF":4.8,"publicationDate":"2025-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144858031","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

Low embodied energy and carbon, high lifetime silicon boules via a combined chemical vapor deposition/float zone process 低能耗和低碳，高寿命硅球通过化学气相沉积/浮子区工艺组合

IF 6.3 2区材料科学

Solar Energy Materials and Solar Cells Pub Date : 2025-08-17 DOI: 10.1016/j.solmat.2025.113902

David L. Young , Ethan Young , Xin He , Aubry Kleinsorge , Malik Hassanaly , Mark Loboda , Kevin L. Schulte

{"title":"Low embodied energy and carbon, high lifetime silicon boules via a combined chemical vapor deposition/float zone process","authors":"David L. Young , Ethan Young , Xin He , Aubry Kleinsorge , Malik Hassanaly , Mark Loboda , Kevin L. Schulte","doi":"10.1016/j.solmat.2025.113902","DOIUrl":"10.1016/j.solmat.2025.113902","url":null,"abstract":"<div><div>This work evaluates a new process route to making float zone (Fz)-quality silicon wafers using a combination of computational fluid dynamics (CFD) modeling and technoeconomic analysis. Our analysis finds that the new process competes with Czochralski (Cz)-grown wafers on a levelized cost of energy system level. The new process also decreases embodied energy and carbon of silicon photovoltaics (PV) by ∼6x circumventing the energy-costly Siemens process used in polycrystalline silicon (poly-Si) production plants to generate feedstock for Fz and Cz boules. Instead of using poly-Si from the Siemens process to feed crystallization, the new process uses the high-purity, trichlorosilane (TCS) precursor gas to grow a poly-Si feed rod in-situ during a modified Fz1,2 boule growth process. The gas-to-boule float zone process enables opportunity to produce high-purity (low metals and oxygen content), uniformly doped single crystal silicon boules and wafers with high bulk lifetimes (τbulk > 15 ms) to enable higher efficiency cells (>27 %) with fewer known degradation mechanisms than Czochralski (Cz)-grown wafers. These benefits reduce the levelized cost of electricity (LCOE) of PV-produced electricity. Here we show the results of our CFD and chemical modeling of the process to prove feasibility and economic viability.</div></div>","PeriodicalId":429,"journal":{"name":"Solar Energy Materials and Solar Cells","volume":"294 ","pages":"Article 113902"},"PeriodicalIF":6.3,"publicationDate":"2025-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144858518","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

Covalent organic framework (COF)-enhanced carbon hollow sphere (CS): a novel nano-porous material for robust epoxy composite coating intelligent corrosion protection 共价有机骨架（COF）增强碳空心球（CS）：一种新型纳米多孔材料，用于环氧复合涂层智能防腐

IF 21.8 2区材料科学

Advanced Composites and Hybrid Materials Pub Date : 2025-08-16 DOI: 10.1007/s42114-025-01408-9

Ali Davarpanah, Seyyed Arash Haddadi, Mohammad Ramezanzadeh, Bahram Ramezanzadeh, Tizazu H. Mekonnen

{"title":"Covalent organic framework (COF)-enhanced carbon hollow sphere (CS): a novel nano-porous material for robust epoxy composite coating intelligent corrosion protection","authors":"Ali Davarpanah, Seyyed Arash Haddadi, Mohammad Ramezanzadeh, Bahram Ramezanzadeh, Tizazu H. Mekonnen","doi":"10.1007/s42114-025-01408-9","DOIUrl":"10.1007/s42114-025-01408-9","url":null,"abstract":"<div>In this research, carbon hollow spheres (CSs) were synthesized by carbonizing polysaccharide shells deposited on silica spheres as hard templates to obtain graphenic carbon shells. Melamine-based covalent organic framework (COF) 3D nanostructures (NSs) were synthesized onto the surface of CSs to enhance their compatibility with the epoxy matrix and their capacity for encapsulating zinc cations and green L-glutamate (ZG) as corrosion inhibitors. Corrosion protection studies of the CS@ZG-COF extract showed an increase in the total impedance of immersed steel from 2298.5 to 14,502.2 Ω cm2 after 24 h, compared to the control solution. The potentiodynamic polarization (PP) test revealed an inhibition efficiency of 82.43% for the CS@ZG-COF extract. The EP/CS@ZG-COF coating demonstrated exceptional self-healing ability, corrosion protection, and barrier properties, forming a robust and uniform protective layer due to the release of encapsulated ZG complexes, which enhanced its electrochemical performance compared to other tested coatings. Furthermore, the incorporation of CS@ZG-COF NSs increased both dry and wet adhesion strength of the epoxy coatings, while the cathodic delamination radius was reduced from 7.6 to 4.4 mm in their presence.</div>","PeriodicalId":7220,"journal":{"name":"Advanced Composites and Hybrid Materials","volume":"8 5","pages":""},"PeriodicalIF":21.8,"publicationDate":"2025-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s42114-025-01408-9.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144853617","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

In-operando characterizations of oligothiophene OFETs: controlling the structure-property relationships at the nanoscale 低硫噻吩ofet的操作中表征：在纳米尺度上控制结构-性能关系

IF 4.1 3区材料科学

Nanoscale Research Letters Pub Date : 2025-08-16 DOI: 10.1186/s11671-025-04332-5

Souren Grigorian, Anton Davydok, Linda Grodd, Yuriy Luponosov, Sergey Ponomarenko, Ilaria Fratoddi

{"title":"In-operando characterizations of oligothiophene OFETs: controlling the structure-property relationships at the nanoscale","authors":"Souren Grigorian, Anton Davydok, Linda Grodd, Yuriy Luponosov, Sergey Ponomarenko, Ilaria Fratoddi","doi":"10.1186/s11671-025-04332-5","DOIUrl":"10.1186/s11671-025-04332-5","url":null,"abstract":"<div>Grazing Incident Wide Angle X-ray Scattering (GIWAXS) studies on organic field-effect transistors (OFETs) fabricated with an aliphatic functionalized α,α'-quinquethiophene (i.e. 5,5′′′′-dihexyl-2,2′:5′,2′′:5′′,2′′′:5′′′,2′′′′-quinquethiophene, DH5T) thin film, were carried out. The structure-property relationships of the semiconductor material were investigated. A detailed, spatially resolved microstructural characterization of the active layer was carried out with the aim of understanding the role of the film’s microstructure on electrical performance. For this purpose, a custom-made setup designed for in-operando tests of OFETs was used, allowing a correlation under measured conditions of the complex microstructure with the thin film electrical behavior, under operating conditions. The GIWAXS measurements revealed a significant anisotropy of the DH5T thin films, under source-drain applied voltages (Vsd). Particularly notable variations were observed for both in-plane and out-of-plane directions. Upon applying the Vsd, the microstructure remained relatively stable in the out-of-plane (001) direction, suggesting that this orientation is less affected by the applied voltages. However, in the in-plane (020) direction, an increase of the π–π stacking of the DH5T molecules was found, indicating a stronger response of the microstructure to the applied voltage. Notably, a higher tensile strain, exceeding 1%, was observed at a Vsd of − 10 V, suggesting that the application of voltage induces significant structural reorganization in the thin film, which may have implications for optimizing the performance of OFETs in practical applications.</div>","PeriodicalId":51136,"journal":{"name":"Nanoscale Research Letters","volume":"20 1","pages":""},"PeriodicalIF":4.1,"publicationDate":"2025-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1186/s11671-025-04332-5.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144858568","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Single atom doping FeS for nitrogen fixation: High-throughput DFT calculation screening and bio-preparation 单原子掺杂固氮FeS：高通量DFT计算、筛选及生物制备

IF 6.6 3区材料科学

Electrochimica Acta Pub Date : 2025-08-16 DOI: 10.1016/j.electacta.2025.147149

Xing-fu Zheng, Shi-mao Sun, Jin-lan Xia, Zhen-yuan Nie, Rui-Jia Hu, Hong-chang Liu, Yu-ting Liang

{"title":"Single atom doping FeS for nitrogen fixation: High-throughput DFT calculation screening and bio-preparation","authors":"Xing-fu Zheng, Shi-mao Sun, Jin-lan Xia, Zhen-yuan Nie, Rui-Jia Hu, Hong-chang Liu, Yu-ting Liang","doi":"10.1016/j.electacta.2025.147149","DOIUrl":"https://doi.org/10.1016/j.electacta.2025.147149","url":null,"abstract":"Shewanella has unique metal reduction characteristics and sulfur metabolism ability, and it can serve as a template for synthesizing FeS based catalysts (biogenic FeS), and compared with the abiotic FeS synthesized by chemical method, biogenic FeS has higher electrocatalytic efficiency. In this study, by high-throughput DFT (density functional theory) calculation screening, we find that 14 types of atoms (Al, Sc, Ti, V, Cr, Nb, Mo, Ru, Hf, Ta, W, Re, Os, and Ir) doping may improve the catalytic capacity of FeS, among which Ti is the best-doped atom. Furtherly, compared with Ti2+ and Ti4+, Ti3+ doping on FeS is the best catalyst, forming a Fe1-1.5xTixS structure. In experiments, the biogenic Fe1-1.5xTixS loaded on cells (biogenic Fe1-1.5xTixS@cell) was successfully synthesized by Shewanella putrefaciens CN32, and the FeS with 1% Ti3+ doping (biogenic Fe0.982Ti0.012S@cell) has a Faradaic efficiency (FE) of 27.73 % and an NH3 yield of 54.5 μg h–1mg–1cat at – 0.5 V (vs RHE), higher than that of the abiotic Fe0.982Ti0.012S (21.29%, 38.5 μg h–1 mg–1cat).","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"57 39 1","pages":""},"PeriodicalIF":6.6,"publicationDate":"2025-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144857951","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

A Weak-Fluorine-Bond Molecule Stabilizes Hard Carbon Anodes for Practical Sodium-Ion Batteries. 一种弱氟键分子稳定用于实用钠离子电池的硬碳阳极。

IF 17.1 1区材料科学

ACS Nano Pub Date : 2025-08-16 DOI: 10.1021/acsnano.5c10983

Yaqi Liao,Han Liu,Yangqian Zhang,Jiayi Yang,Haijin Ji,Donghai Wang,Lixia Yuan,Yunhui Huang,Yang Ren

{"title":"A Weak-Fluorine-Bond Molecule Stabilizes Hard Carbon Anodes for Practical Sodium-Ion Batteries.","authors":"Yaqi Liao,Han Liu,Yangqian Zhang,Jiayi Yang,Haijin Ji,Donghai Wang,Lixia Yuan,Yunhui Huang,Yang Ren","doi":"10.1021/acsnano.5c10983","DOIUrl":"https://doi.org/10.1021/acsnano.5c10983","url":null,"abstract":"Solid-electrolyte interphase (SEI) is essential for improving the cycling stability in sodium-ion batteries (SIBs) by preventing direct contact between electrolytes and hard carbon (HC) anodes. Conventional C-F bond molecules like fluoroethylene carbonate (FEC) show poor SEI formation due to early sodium-ion adsorption on HC, delaying additive reduction. Herein, methyl 2, 2-difluoro-2-(fluorosulfonyl) acetate (MDFA), a weak-fluorine-bond molecule, is proposed to facilitate early SEI formation and suppress parasitic reactions. The strong electron-withdrawing O=S=O group destabilizes the S-F bond, enabling preferential reduction of MDFA and formation of inorganic SEI components that enhance ionic conductivity and accelerate interfacial charge transfer. As a result, the HC with MDFA shows over 5000 stable cycles and delivers a high capacity of 252 mAh g-1 at 5 C, outperforming 108 mAh g-1 of that with FEC. A 4.6 Ah pouch cell with MDFA enables 89.3% capacity retention after 1000 cycles. These findings provide valuable insights into fluorine-bond chemistry for the electrolyte additive design in long-life SIBs.","PeriodicalId":21,"journal":{"name":"ACS Nano","volume":"12 1","pages":""},"PeriodicalIF":17.1,"publicationDate":"2025-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144857839","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Host Cell Membrane-Cloaked Nanomedicine Reprograms Endothelial Surface for Enhanced Patency in Allogeneic Vascular Grafts. 宿主细胞膜覆盖纳米药物重编程内皮表面以增强同种异体血管移植物的通畅性。

IF 29.4 1区材料科学

Advanced Materials Pub Date : 2025-08-16 DOI: 10.1002/adma.202506653

Juan Pei,Yinhua Qin,Quanxing Liu,Dayu Sun,Xiaohang Qu,Guanyuan Yang,Dongcheng Yang,Ting Gao,Yong Liu,Hongyu Sun,Xin Guo,Youqian Xu,Yonghong Fan,Chuhong Zhu

{"title":"Host Cell Membrane-Cloaked Nanomedicine Reprograms Endothelial Surface for Enhanced Patency in Allogeneic Vascular Grafts.","authors":"Juan Pei,Yinhua Qin,Quanxing Liu,Dayu Sun,Xiaohang Qu,Guanyuan Yang,Dongcheng Yang,Ting Gao,Yong Liu,Hongyu Sun,Xin Guo,Youqian Xu,Yonghong Fan,Chuhong Zhu","doi":"10.1002/adma.202506653","DOIUrl":"https://doi.org/10.1002/adma.202506653","url":null,"abstract":"The endothelium serves as the first point of contact following the implantation of allogeneic vascular grafts (AGs) or organs. Rapid endothelial injury triggered by immunocytotoxicity, combined with subsequent endothelial dysfunction during vascular tissue remodeling, collectively exacerbates complications, including thrombosis, inflammation, and intimal hyperplasia, ultimately leading to graft failure. In this study, a nanomedicine, R-SB@PLGA, is developed for use in metabolically guided cell surface reprogramming (CSR) in AGs. R-SB@PLGA is fabricated by encapsulating SB431542 (SB)-loaded poly(lactic-co-glycolic acid) (PLGA) nanoparticles within host red blood cell membranes (RBCM). Upon immobilization, this nanomedicine reprograms the epitope presentation of endothelial cells (ECs), establishing localized steric immune shielding to preserve endothelial integrity without the need for systemic immunosuppression. Concurrently, the nanomedicine releases SB to inhibit the transforming growth factor-β (TGF-β)-mediated endothelial-to-mesenchymal transition (EndMT), thereby preventing endothelial dysfunction during vascular tissue remodeling. In animal models of allogeneic carotid artery transplantation, R-SB@PLGA showed significant efficacy in enhancing graft patency by reducing vascular inflammation and intimal hyperplasia. By integrating site-specific immune shielding with in situ therapeutic delivery, a novel paradigm is established for improving transplant outcomes through localized intervention, which is highly promising for promoting the success of allogeneic vascular or organ transplantation.","PeriodicalId":114,"journal":{"name":"Advanced Materials","volume":"9 1","pages":"e06653"},"PeriodicalIF":29.4,"publicationDate":"2025-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144857847","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Enhancing β-O-4 Linkage Cleavage with Ultrahigh Faradaic Efficiency via Electrochemical-Chemical Tandem Catalysis for Lignin Valorization. 通过电化学-化学串联催化木质素增值，以超高法拉第效率增强β-O-4键的切割。

IF 29.4 1区材料科学

Advanced Materials Pub Date : 2025-08-16 DOI: 10.1002/adma.202508234

Cairong Wang,Qingyu Luo,Leitao Xu,Zhongcheng Xia,Yangyang Zou,Yulu Yang,Yuanqing He,Shuangyin Wang,Yuqin Zou

{"title":"Enhancing β-O-4 Linkage Cleavage with Ultrahigh Faradaic Efficiency via Electrochemical-Chemical Tandem Catalysis for Lignin Valorization.","authors":"Cairong Wang,Qingyu Luo,Leitao Xu,Zhongcheng Xia,Yangyang Zou,Yulu Yang,Yuanqing He,Shuangyin Wang,Yuqin Zou","doi":"10.1002/adma.202508234","DOIUrl":"https://doi.org/10.1002/adma.202508234","url":null,"abstract":"The electrocatalytic cleavage of β-O-4 linkages in lignin has gained prominence as a sustainable strategy for biomass valorization. However, its broader application remains limited by key challenges, such as low Faradaic efficiency (FE), high oxidation potentials, and limited mechanistic understanding. To address these limitations, an electrochemical-chemical tandem catalysis system is developed for the electrooxidation of 2-phenoxy-1-phenylethanol (PPE). Mechanistic investigations revealed a two-step tandem process in PPE cleavage: i) electrochemical dehydrogenation of the Cα─OH groups, followed by ii) non-electrochemical Cα─Cβ bond cleavage. The improved cleavage efficiency can be primarily attributed to the accelerated electrocatalytic dehydrogenation step. To optimize the adsorption of OH- and PPE molecules during electrocatalysis, an Au-nanoparticle-decorated CuO nanoflakes (Au/CuO) electrocatalyst is designed. Comprehensive characterization techniques demonstrated that Au nanoparticles act as active sites for Cα─OH oxidation, while the CuO substrate facilitates PPE adsorption. Notably, the Au/CuO electrode achieved high product yields of 99.2% phenol and 80.2% benzoic acid at 0.95 VRHE, with a record-high FE of 74.7% for PPE conversion. Furthermore, the catalytic strategy was successfully extended to the depolymerization of organosolv lignin (OL). This study elucidates an electrochemical-chemical tandem mechanism for the electrocatalytic cleavage of lignin and presents an efficient electrocatalyst with high FE for lignin depolymerization.","PeriodicalId":114,"journal":{"name":"Advanced Materials","volume":"24 1","pages":"e08234"},"PeriodicalIF":29.4,"publicationDate":"2025-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144857851","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Versatile and environmentally benign polyurethane coatings enabled by the multiple facets of tannic acid 多功能和环保聚氨酯涂料由单宁酸的多个方面实现

IF 7.3 2区材料科学

Progress in Organic Coatings Pub Date : 2025-08-16 DOI: 10.1016/j.porgcoat.2025.109606

Yingxin Tan, Chuming Pang, Liangzhi Hong

{"title":"Versatile and environmentally benign polyurethane coatings enabled by the multiple facets of tannic acid","authors":"Yingxin Tan, Chuming Pang, Liangzhi Hong","doi":"10.1016/j.porgcoat.2025.109606","DOIUrl":"10.1016/j.porgcoat.2025.109606","url":null,"abstract":"<div><div>Developing environmentally friendly coatings that are substrate-independent, extremely transparent, and omni-liquid-repellent remains a daunting task. Herein, we present a highly versatile polyurethane coating (TA-g-PDMS) that incorporates plant-derived tannic acid (TA) and polydimethylsiloxane (PDMS). The highly cross-linked network suppresses macroscopic phase separation and endows the resulting TA-g-PDMS coating with up to 99 % transparency. The PDMS smooth layer formed on the outermost surface repels both water and oil, and has anti-smudge and self-cleaning properties. Even after 500 repetitive writing and erasing cycles, the coating still maintains its excellent anti-graffiti properties. Due to the superior adhesion of TA, this coating can approach top 5B adhesion and can be applied to a variety of substrates. By utilizing the antioxidant properties of TA, silver nanoparticles can be generated in the coating by in situ reduction, resulting in an excellent antibacterial rate of more than 99 %. Furthermore, the self-cleaning properties of the coating coupled with the UV shielding ability imparted by TA enhance the photostability and durability of organic solar cells (OSCs). We present an eco-friendly method of fabricating versatile and durable coatings for a wide array of uses.</div></div>","PeriodicalId":20834,"journal":{"name":"Progress in Organic Coatings","volume":"209 ","pages":"Article 109606"},"PeriodicalIF":7.3,"publicationDate":"2025-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144852675","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

Giant Electrostriction via Nanodomain Engineering in Relaxor Ferroelectric Polymers. 弛豫铁电聚合物纳米畴工程的巨电伸缩研究。

IF 17.1 1区材料科学

ACS Nano Pub Date : 2025-08-16 DOI: 10.1021/acsnano.5c10388

Qin Zou,Guanchun Rui,Siyu Wu,Honghu Zhang,Philip L Taylor,Lei Zhu

{"title":"Giant Electrostriction via Nanodomain Engineering in Relaxor Ferroelectric Polymers.","authors":"Qin Zou,Guanchun Rui,Siyu Wu,Honghu Zhang,Philip L Taylor,Lei Zhu","doi":"10.1021/acsnano.5c10388","DOIUrl":"https://doi.org/10.1021/acsnano.5c10388","url":null,"abstract":"Relaxor ferroelectric (RFE) polymers hold great promise for artificial muscles due to their high actuation strain, high loading stress, and fast response. However, the structural origin underlying their large electrostrictive deformation remains elusive. In this study, we investigate poly(vinylidene fluoride-co-trifluoroethylene) [P(VDF-TrFE)]-based RFE terpolymers, incorporating 1,1-chlorofluoroethylene (CFE) or chlorotrifluoroethylene (CTFE) (the terpolymers are denoted as terP-CFE and terP-CTFE, respectively) as termonomers. Although both terpolymers show similar semicrystalline morphology, drastically different electrostrictive properties are observed. Specifically, the terP-CFE annealed at 100 °C achieves a record-high transverse strain of ∼10.6%, whereas 100 °C-annealed terP-CTFE only shows a much lower actuation strain of ∼4.2% at the same poling field of 190 MV/m. To elucidate the origin of this difference, time-resolved wide-angle X-ray diffraction, small-angle X-ray scattering, and Fourier transform infrared experiments are performed during in situ electric poling. An RFE-to-ferroelectric (FE) crystal phase transition is observed for terP-CFE but is absent for terP-CTFE. Beyond the contribution of the crystalline phase, the oriented amorphous fraction and crystalline defects (e.g., taut-tie molecules) also play significant roles in enhancing electrostriction. This mechanistic insight provides a valuable foundation for the rational design of next-generation RFE polymers with tunable properties through defect engineering of their semicrystalline structures.","PeriodicalId":21,"journal":{"name":"ACS Nano","volume":"37 1","pages":""},"PeriodicalIF":17.1,"publicationDate":"2025-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144857838","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

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