Nanomaterials最新文献_第10页

Recovering Pressure-Independent Dilute-Gas Thermal Conductivity from Molecular Dynamics: Green-Kubo Sampling Sensitivity and NEMD Finite-Size Effects. 从分子动力学中恢复压力无关的稀气热导率：Green-Kubo采样灵敏度和NEMD有限尺寸效应。

IF 4.8 3区材料科学

Nanomaterials Pub Date : 2026-10-01 DOI: 10.3390/nano16191241

Matthew Riggs, Atal Bhowmik, Murat Barisik

{"title":"Recovering Pressure-Independent Dilute-Gas Thermal Conductivity from Molecular Dynamics: Green-Kubo Sampling Sensitivity and NEMD Finite-Size Effects.","authors":"Matthew Riggs, Atal Bhowmik, Murat Barisik","doi":"10.3390/nano16191241","DOIUrl":"10.3390/nano16191241","url":null,"abstract":"Gas thermal conductivity is important in many engineering systems, but reliable data are not available for every gas, mixture, temperature, and pressure. Molecular dynamics can help fill this gap by predicting transport directly from molecular motion. However, gas simulations face time- and length-scale limitations that are different from those commonly encountered in liquids and solids. These limitations are not always recognized, and standard molecular dynamics tools are often used without checking whether their settings are suitable for dilute gases. This study uses the pressure-independent thermal conductivity of dilute argon as a benchmark for evaluating equilibrium and nonequilibrium molecular dynamics methods. At fixed temperature, changing pressure changes the mean free path and collision time even though the bulk thermal conductivity remains constant. Green-Kubo calculations at 300 K and 1 atm produced values from 0.009 to 0.022 W m-1 K-1 as the sampling interval and correlation length were varied, compared with the expected value of about 0.0175 W m-1 K-1. Some settings reproduced the expected value without showing convergence, demonstrating the risk of using Green-Kubo as a black-box calculation. NEMD simulations from 0.2 to 1.0 atm showed that the apparent conductivity increased with longitudinal system size and approached similar asymptotic values across pressure. The results recover pressure-independent gas thermal conductivity while showing that decreasing pressure increases the molecular length and time scales relevant to MD simulations. Reliable gas-property prediction therefore requires direct checks of Green-Kubo time scales and NEMD system-size dependence.","PeriodicalId":18966,"journal":{"name":"Nanomaterials","volume":"16 19","pages":""},"PeriodicalIF":4.8,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13667058/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149182992","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

Sustainable Synthesis of Zinc Oxide and Its Application in Water Contaminant Removal. 氧化锌的可持续合成及其在水污染物去除中的应用。

IF 4.8 3区材料科学

Nanomaterials Pub Date : 2026-10-01 DOI: 10.3390/nano16191244

Piotr Dulian, Olena Sachuk, Olena Kiziun, Liudmyla Kotynska, Valery Zazhigalov, Marta Żurek, Janusz Jaglarz, Witold Żukowski

{"title":"Sustainable Synthesis of Zinc Oxide and Its Application in Water Contaminant Removal.","authors":"Piotr Dulian, Olena Sachuk, Olena Kiziun, Liudmyla Kotynska, Valery Zazhigalov, Marta Żurek, Janusz Jaglarz, Witold Żukowski","doi":"10.3390/nano16191244","DOIUrl":"10.3390/nano16191244","url":null,"abstract":"This study explores the sustainable synthesis of zinc oxide (ZnO) from industrial waste and its application in removing water contaminants such as chloramphenicol (CAP), metronidazole (MNZ), and prometryn (PROM). ZnO synthesized from zinc production waste (ZnO(2)) exhibited competitive photocatalytic performance compared to commercial ZnO (ZnO(1)), achieving 79% CAP degradation (Kd = 0.53 × 10-2 min-1) and 72% MNZ degradation (Kd = 0.43 × 10-2 min-1) under UV light, while showing higher activity in PROM degradation (32% removal) due to its mesoporous structure. Although ZnO(2) had a slightly lower specific surface area (24.9 m2/g) and pore volume (0.26 cm3/g) than ZnO(1), it demonstrated significant environmental and economic benefits by repurposing industrial waste. Catalytic tests in ethanol oxidation revealed ZnO(2) required higher temperatures for full conversion but exhibited higher acetaldehyde selectivity (70%). These findings highlight the potential of waste-derived ZnO as a sustainable alternative for water treatment and catalytic processes, aligning with circular economy principles and reducing reliance on natural resources.","PeriodicalId":18966,"journal":{"name":"Nanomaterials","volume":"16 19","pages":""},"PeriodicalIF":4.8,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13667032/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149183091","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

Research Progress in Phase-Structure Evolution and Electro-magnetic-Wave Absorption Performance of Aluminosilicate Mineral-Based Ceramics. 铝硅酸盐矿物基陶瓷相结构演化及电磁波吸收性能研究进展。

IF 4.8 3区材料科学

Nanomaterials Pub Date : 2026-10-01 DOI: 10.3390/nano16191245

Zhongyi Bai, Qichen Zhang, Song Li, Chunjiang Li, Biao Zhao, Mengjie Wang, Xuwen Li, Rong Wang, Xiaoqin Guo

{"title":"Research Progress in Phase-Structure Evolution and Electro-magnetic-Wave Absorption Performance of Aluminosilicate Mineral-Based Ceramics.","authors":"Zhongyi Bai, Qichen Zhang, Song Li, Chunjiang Li, Biao Zhao, Mengjie Wang, Xuwen Li, Rong Wang, Xiaoqin Guo","doi":"10.3390/nano16191245","DOIUrl":"10.3390/nano16191245","url":null,"abstract":"High-temperature electromagnetic functional ceramics require matrix phases, such as alumina and mullite, that combine resistance to high temperatures and oxidation with low density. Aluminosilicates derived from natural minerals or solid wastes can reduce material costs and introduce additional electromagnetic responses through associated iron-, carbon-, and alkali-metal-containing components. However, fully exploiting these advantages requires coordinated control of activation, separation, molten salt recovery, and heat treatment. This review systematically examines six precursor types-kaolin, perlite, sillimanite, red mud, fly ash, and coal gangue-with particular emphasis on their phase characteristics, phase-structure evolution and regulation mechanisms in molten-salt environments, porous-structure construction, and electromagnetic functionalization. Current evidence indicates that kaolin and sillimanite primarily follow mullitization pathways, whereas mullitization of perlite requires exogenous aluminum components. Under defined carbon-source and atmospheric conditions, fly ash, coal gangue, and red mud can form multiphase composites containing carbon, iron-based phases, and aluminosilicates. This review synthesizes the relationships among precursor composition, phase-structure evolution pathways, and interfacial structure, and identifies high-temperature in situ electromagnetic characterization, improved oxidation stability, and scalable preparation as key priorities for future research. Perlite is discussed more briefly because quantitative electromagnetic-wave absorption data for perlite-derived ceramics remain limited.","PeriodicalId":18966,"journal":{"name":"Nanomaterials","volume":"16 19","pages":""},"PeriodicalIF":4.8,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13666749/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149182936","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

Fe-Based Amorphous Microflakes with Deformation-Induced Nanoscale Heterogeneity Prepared by Pulse-Discharge Atomization and Ball Milling for Broadband Microwave Absorption. 脉冲放电雾化和球磨法制备具有形变诱导纳米非晶微片的宽带微波吸收。

IF 4.8 3区材料科学

Nanomaterials Pub Date : 2026-10-01 DOI: 10.3390/nano16191242

Chekai Liu, Xinghua Wang, Zonghai Zhao, Rui Ding, Yanming Wu, Chenghui Hu, Wei Xue, Jingwu Liu, Xinghao Wei

{"title":"Fe-Based Amorphous Microflakes with Deformation-Induced Nanoscale Heterogeneity Prepared by Pulse-Discharge Atomization and Ball Milling for Broadband Microwave Absorption.","authors":"Chekai Liu, Xinghua Wang, Zonghai Zhao, Rui Ding, Yanming Wu, Chenghui Hu, Wei Xue, Jingwu Liu, Xinghao Wei","doi":"10.3390/nano16191242","DOIUrl":"10.3390/nano16191242","url":null,"abstract":"Fe-based amorphous alloys are attractive for microwave attenuation because they combine soft-magnetic behavior, relatively high electrical resistivity compared with compositionally similar crystalline alloys, and flexible structural design. A persistent challenge is to achieve strong attenuation and broad bandwidth at a small matching thickness without relying on complex multiphase architectures. Fe85P9C2B2Si2 amorphous powders were prepared by pulse-discharge atomization and the fine spherical fraction was subsequently flattened by controlled wet-ball milling. The atomized powders remain predominantly amorphous, whereas milling produces high-aspect-ratio microflakes together with localized approximately 5 nm band-like heterogeneous regions containing limited nanocrystalline order. Relative to the spherical powders, FP5 shows stronger dielectric and magnetic responses. At 16.9 GHz and a thickness of 1.7 mm, the attenuation constant reaches 235.9 m-1 and the normalized input-impedance magnitude is 0.999, indicating that strong intrinsic attenuation coincides with nearly ideal impedance matching. FP5 consequently exhibits a minimum reflection loss of -53.5 dB and an effective absorption bandwidth of 6.2 GHz (11.8-18.0 GHz) at 1.85 mm. The results indicate that the high-aspect-ratio morphology is the better-supported primary structural contribution to the improved absorption, while local amorphous/nanocrystalline heterogeneity may provide an additional contribution.","PeriodicalId":18966,"journal":{"name":"Nanomaterials","volume":"16 19","pages":""},"PeriodicalIF":4.8,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13666872/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149183112","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

Degradation Performance and Mechanism of Methyl Orange by Iron-Modified Sludge Biochar-Activated Peroxymonosulfate. 铁改性污泥生物炭活化过氧单硫酸根降解甲基橙的性能及机理

IF 4.8 3区材料科学

Nanomaterials Pub Date : 2026-09-30 DOI: 10.3390/nano16191233

Meng-Yuan Li, Jiang-Li Yu, Mei-Qi Ren, Tao Hou, Dan Cui

{"title":"Degradation Performance and Mechanism of Methyl Orange by Iron-Modified Sludge Biochar-Activated Peroxymonosulfate.","authors":"Meng-Yuan Li, Jiang-Li Yu, Mei-Qi Ren, Tao Hou, Dan Cui","doi":"10.3390/nano16191233","DOIUrl":"10.3390/nano16191233","url":null,"abstract":"Azo dye wastewater poses a persistent environmental challenge because of its high toxicity, poor biodegradability, and widespread occurrence in textile and dyeing effluents, highlighting the need for efficient and sustainable treatment technologies. In this study, iron-modified sludge biochar (Fe@SBC) was prepared via impregnation-pyrolysis and employed to activate peroxymonosulfate (PMS) for methyl orange (MO) degradation, providing a dual benefit of sludge valorization and pollutant removal. Iron modification increased the specific surface area from 50.93 to 66.54 m2·g-1 and total pore volume from 0.085 to 0.309 cm3·g-1, while introducing Fe3O4, Fe2+/Fe3+ redox pairs, and oxygen-containing functional groups that significantly enhanced electron transfer. The Fe@SBC/PMS system achieved 95.2 ± 0.2% MO removal within 25 min under optimal conditions, notably outperforming unmodified biochar (86.0 ± 0.6%). The catalyst exhibited excellent pH adaptability (3-11) and maintained 88.0 ± 0.8% removal after five cycles. Quenching experiments and EPR analysis identified singlet oxygen (1O2) as the dominant reactive species (~80% contribution), with sulfate and hydroxyl radicals playing auxiliary roles. LC-MS analysis proposed three parallel degradation pathways involving azo bond cleavage, hydroxylation, and desulfonation. These findings demonstrate that Fe@SBC is an effective PMS activator and provide mechanistic insight into the design of sludge-derived carbon catalysts for advanced oxidation processes, offering a promising approach for simultaneous sludge resource recovery and azo dye wastewater treatment.","PeriodicalId":18966,"journal":{"name":"Nanomaterials","volume":"16 19","pages":""},"PeriodicalIF":4.8,"publicationDate":"2026-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13667204/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149182719","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

A Novel Graphene Oxide/γ-Alumina Hybrid Nano-Adsorbent Integrated into Polyurethane Foam for Adsorption of Industrial Pollutants from Wastewater. 新型氧化石墨烯/γ-氧化铝复合纳米吸附剂对工业废水中污染物的吸附

IF 4.8 3区材料科学

Nanomaterials Pub Date : 2026-09-30 DOI: 10.3390/nano16191239

Salar Sadri, Mohammad Hassan Vakili, Nader Mokhtarian

{"title":"A Novel Graphene Oxide/γ-Alumina Hybrid Nano-Adsorbent Integrated into Polyurethane Foam for Adsorption of Industrial Pollutants from Wastewater.","authors":"Salar Sadri, Mohammad Hassan Vakili, Nader Mokhtarian","doi":"10.3390/nano16191239","DOIUrl":"10.3390/nano16191239","url":null,"abstract":"This study reports the synthesis, characterization, and wastewater treatment performance of a hybrid nanocomposite based on graphene oxide (GO) and γ-alumina (γ-Al2O3). Functionalization was carried out via silanization using GPTMS for GO and APTES for γ-Al2O3, followed by covalent grafting through epoxy-amine linkage. FTIR spectroscopy confirmed successful grafting, showing Si-O-Si stretching and reduced epoxy ring vibrations. BET analysis indicated that the GO/γ-Al2O3 hybrid (ALGO) preserved a high specific surface area (198.08 m2/g), comparable to commercial γ-Al2O3, demonstrating that GO did not hinder porosity. ALGO was incorporated into polyurethane foam at loadings of 1-5% (ALGO@PU foam) and applied in wastewater treatment. UV-Vis spectroscopy revealed strong affinity for silver ions, evidenced by a decrease in AgNO3 absorbance (~430-600 nm) with increasing AlGO content. Treatment of real industrial wastewater showed significant reductions in chemical oxygen demand (COD), biological oxygen demand (BOD), and turbidity. At 5% loading, COD and BOD decreased from 1162 and 480 mg/L to 64 and 11 mg/L, respectively, while turbidity dropped from >1100 NTU to 1.62 NTU. These results demonstrate that ALGO is a functional adsorbent capable of removing ion metals, and improving water clarity, highlighting its potential for industrial wastewater treatment applications.","PeriodicalId":18966,"journal":{"name":"Nanomaterials","volume":"16 19","pages":""},"PeriodicalIF":4.8,"publicationDate":"2026-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13666717/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149183270","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

Numerical Simulation of the Effect of Mg-Doped TiO₂ Electron Transport Layer on the Performance of Tetragonal MAPbI₃ Perovskite Solar Cells. mg掺杂TiO2电子传输层对四方MAPbI3钙钛矿太阳能电池性能影响的数值模拟。

IF 4.8 3区材料科学

Nanomaterials Pub Date : 2026-09-30 DOI: 10.3390/nano16191237

Chunlei Shi, Xuan Yu, Ji Liu, Zhiyuan Chen, Jian Jiao

{"title":"Numerical Simulation of the Effect of Mg-Doped TiO2 Electron Transport Layer on the Performance of Tetragonal MAPbI3 Perovskite Solar Cells.","authors":"Chunlei Shi, Xuan Yu, Ji Liu, Zhiyuan Chen, Jian Jiao","doi":"10.3390/nano16191237","DOIUrl":"10.3390/nano16191237","url":null,"abstract":"A systematic SCAPS-1D simulation was performed to evaluate the effects of charge-transport-layer selection, MAPbI3 crystal phase, TiO2 modification, and key device parameters on the photovoltaic performance of MAPbI3-based perovskite solar cells. Twenty-five combinations of five electron transport layers (ETLs) and five hole transport layers were first screened using tetragonal MAPbI3 as the absorber. The TiO2/P3HT combination exhibited the highest power conversion efficiency (PCE) of 23.653% and was selected for subsequent analysis. Comparison of cubic, orthorhombic, and tetragonal MAPbI3 showed that the tetragonal phase delivered the highest PCE, primarily owing to its higher short-circuit current density despite its relatively lower open-circuit voltage. Li-, Co-, Mg-, and Al-doped TiO2 ETLs were then evaluated, among which Mg:TiO2 produced the largest and most consistent performance improvement, increasing the PCE of the tetragonal device to 23.951%, mainly through an enhancement in fill factor. The selected Glass/FTO/Mg:TiO2/tetragonal-MAPbI3/P3HT/Au device was further optimized by varying the absorber thickness, Mg:TiO2 donor concentration, MAPbI3 bulk defect density, interface defect density, and back-contact work function. Under the stepwise-selected low-defect conditions, the device achieved a simulated open-circuit voltage of 1.166 V, short-circuit current density of 27.600 mA cm-2, fill factor of 87.580%, and PCE of approximately 28.18%. The results highlight the importance of jointly optimizing absorber properties, electron-transport characteristics, defect density, and contact energetics, and they provide a theoretical basis for narrowing the experimental design space of high-performance MAPbI3 perovskite solar cells.","PeriodicalId":18966,"journal":{"name":"Nanomaterials","volume":"16 19","pages":""},"PeriodicalIF":4.8,"publicationDate":"2026-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13667230/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149183401","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

Chain-End Reactivity and Anisotropic Electronic Softening Define Candidate Design Targets in BPDA/4,4'-ODA Polyimide Insulation. 链端反应性和各向异性电子软化确定了BPDA/4,4'-ODA聚酰亚胺绝缘的候选设计目标。

IF 4.8 3区材料科学

Nanomaterials Pub Date : 2026-09-30 DOI: 10.3390/nano16191236

Dongqiao Bai, Tianyu Lin

{"title":"Chain-End Reactivity and Anisotropic Electronic Softening Define Candidate Design Targets in BPDA/4,4'-ODA Polyimide Insulation.","authors":"Dongqiao Bai, Tianyu Lin","doi":"10.3390/nano16191236","DOIUrl":"10.3390/nano16191236","url":null,"abstract":"Identifying the molecular origins of thermal and electric-field response can guide polyimide insulation design. We combined an 18-film aromatic imide oligomer ensemble, reactive molecular dynamics, and signed finite-field r2SCAN-3c calculations to separate packing, chain-end chemistry, and directional electronic response. Independently initialized films exhibited a fivefold variation in probe-accessible volume, with distinct connected void geometries at similar accessible fractions. Across sixteen 5 ps thermal trajectories, terminal imide N-H sites accounted for 20 of 21 persistent reference-bond losses; the nonterminal inventory contained 14 new C-O connectivities and one C-N loss. In six matched film pairs, nonterminal records increased from 2 to 5 at 1600 K and from 12 to 19 at 1800 K between 5 and 10 ps, revealing the growing contribution of nonterminal rearrangement. Trajectories extending to 20 ps also resolved the onset of increased mass escape. At ±2 V nm-1, the isolated ether-linked bis-imide fragment showed 0.342-0.841 eV frontier-gap narrowing across six directions, compared with at most 0.049 eV for the imide fragment, despite overlapping size-normalized induced responses. Together, these results identify chain termination and segment orientation as candidate design variables and provide quantitative descriptors for morphology-matched thermal comparisons and orientation-resolved electronic screening.","PeriodicalId":18966,"journal":{"name":"Nanomaterials","volume":"16 19","pages":""},"PeriodicalIF":4.8,"publicationDate":"2026-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13666579/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149183245","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

BiFeO₃ Ceramics: Structure-Property Relationships and Doping Strategies. BiFeO3陶瓷：结构-性能关系及掺杂策略。

IF 4.8 3区材料科学

Nanomaterials Pub Date : 2026-09-30 DOI: 10.3390/nano16191231

Saba Aziz, Ritu Rawat, Silvia Rizzato, Angelo Leo, Gabriella Maria De Luca, Shahid Khalid, Sourav Kuila, Giuseppe Maruccio, Anna Grazia Monteduro

{"title":"BiFeO3 Ceramics: Structure-Property Relationships and Doping Strategies.","authors":"Saba Aziz, Ritu Rawat, Silvia Rizzato, Angelo Leo, Gabriella Maria De Luca, Shahid Khalid, Sourav Kuila, Giuseppe Maruccio, Anna Grazia Monteduro","doi":"10.3390/nano16191231","DOIUrl":"10.3390/nano16191231","url":null,"abstract":"Bismuth ferrite (BiFeO3, BFO) is a lead-free perovskite that combines robust ferroelectricity and antiferromagnetism at room temperature, making it one of the most extensively studied room-temperature multiferroics for spintronics, sensors, and multifunctional devices. In bulk ceramics, however, Bi volatility, oxygen-vacancy-driven leakage, and parasitic phases complicate synthesis and obscure intrinsic ferroic response. This review critically revisits the fundamental physical properties of bulk BiFeO3 ceramics by elucidating the relationships between crystal structure, defect chemistry, processing, and ferroic functionalities. Particular emphasis is placed on the evolution of the understanding of the intrinsic ferroelectric, magnetic, dielectric, and magnetoelectric properties of bulk BiFeO3, highlighting the landmark experimental and theoretical studies that have shaped the current picture of this material. The review further examines A-site (Bi) and B-site (Fe) substitutions and selected co-doping strategies, assessing how they modify structural stability and ferroic behavior. Finally, representative performance benchmarks for undoped and doped bulk ceramics are compared, and the remaining challenges toward achieving reproducible room-temperature magnetoelectric functionality are critically discussed. Overall, this review provides a unified framework linking crystal chemistry, processing methods, microstructure, doping engineering, and ferroic functionalities, offering practical guidelines for the rational design of high-performance BiFeO3-based bulk ceramics for next-generation multifunctional devices.","PeriodicalId":18966,"journal":{"name":"Nanomaterials","volume":"16 19","pages":""},"PeriodicalIF":4.8,"publicationDate":"2026-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13666871/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149183253","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

Electrically Tunable Second-Harmonic Generation in High-Q Organic DAST All-Dielectric Nonlinear Metasurfaces. 高q有机DAST全介电非线性超表面中电可调谐二次谐波的产生。

IF 4.8 3区材料科学

Nanomaterials Pub Date : 2026-09-30 DOI: 10.3390/nano16191235

Yongjie Wang, Xiaomeng Cheng, Yarong Yang, Guanhong Li, Yu Jiang, Qiang Wang, Junchen Ke, Jinping Chen

引用次数: 0