Materials Chemistry and Physics最新文献

{"title":"Role of hygroscopic nanofillers and plasticizer in enhancing ionic transport and structural stability of plasticized chitosan-based nanocomposite polymer electrolyte membranes for fuel cells","authors":"Qamber Ali ,&nbsp;Taweesak Boonsod ,&nbsp;Rojana Pornprasertsuk ,&nbsp;Wanwisa Limphirat ,&nbsp;Wirach Taweepreda ,&nbsp;Kanoktip Boonkerd","doi":"10.1016/j.matchemphys.2026.132212","DOIUrl":"10.1016/j.matchemphys.2026.132212","url":null,"abstract":"<div><div>The growing demand for high-performance, environmentally friendly, and cost-effective polymer electrolyte membranes (PEMs) has driven increasing interest in natural polymer-based materials. Chitosan (CS), a renewable and biodegradable biopolymer, offers a promising alternative to conventional synthetic PEMs but suffers from limited proton conductivity and stability. This work systematically investigated the incorporation of hygroscopic nanofiller (calcium oxide nanofiller, CaO–NF) and plasticizer (ethylene carbonate, EC) into a CS matrix and their effects on PEMs’ performance. Fourier-transform infrared (FTIR) analysis confirmed the formation of hydrogen-bonding interactions among the CS matrix, CaO–NF, and EC. Scanning electron microscopy coupled with energy dispersive spectroscopy (SEM-EDS) revealed a homogeneous dispersion of CaO–NF throughout the CS matrix. X-ray diffraction (XRD) analysis showed that the incorporation of CaO–NF and EC promoted the formation of amorphous region in the CS matrix, facilitating ion transport and resulting in a high ion-exchange capacity (IEC) of 3.5 meq.g⁻¹ and a proton conductivity of 166 mS cm⁻¹ for the CS/CaO₁/EC₁ membrane. Arrhenius analysis revealed a reduction in activation energy upon the incorporation of an optimized amount of nanofiller and plasticizer, confirming enhanced ion transport efficiency within the membrane matrix. The maximum chemical stability was achieved with the incorporation of 1 wt% CaO–NF, extending membrane durability to 86 h compared with 70 h for the pristine CS membrane; however, the stability decreased when EC was added to the CS/CaO₁ membrane. Based on comparisons with commercial PEMs reported in the literature, the CS/CaO₁/EC₁ membrane exhibited competitive proton conductivity together with excellent thermal stability, chemical stability, and mechanical properties, highlighting its potential for high-performance fuel cell applications.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"354 ","pages":"Article 132212"},"PeriodicalIF":4.7,"publicationDate":"2026-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146191915","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}

{"title":"Psoralen-loaded polycaprolactone microspheres: A pH-responsive drug carrier for the treatment of rheumatoid arthritis","authors":"Lixian Zhu ,&nbsp;Zhijie Gao ,&nbsp;Tengyue Zhang ,&nbsp;Hechao Zhao ,&nbsp;Dexian Zeng ,&nbsp;Yanhua Wang","doi":"10.1016/j.matchemphys.2026.132185","DOIUrl":"10.1016/j.matchemphys.2026.132185","url":null,"abstract":"<div><div>Developing novel drug carriers for delivery of psoralen (PSO) is crucial to inhibit the pathogenesis of rheumatoid arthritis (RA). This work aims to develop PSO-loaded polycaprolactone (PCL) microspheres through a single emulsion solvent evaporation route, improving the bioavailability and controllable release of PSO. The resulting PCL@PSO microspheres are characterized by multiple physicochemical techniques. Results show the loading of PSO onto PCL, via surface adsorption, increases the size and specific surface area. Accordingly, the encapsulation efficiency and loading capacity of PCL@PSO microspheres are (87.77 ± 0.07)% and (12.28 ± 0.01)%, respectively. Strikingly, such microspheres exhibit pH-responsive drug kinetics, predominantly releasing PSO in alkaline environments in contrast with neutral or acidic conditions. This release pattern, mostly caused by diffusion, is conducive to inhibit inflammatory response whilst promote osteanagenesis in bone microenvironment. Cell experiments confirm PCL@PSO microspheres are cytocompatible with BMSCs cell but strongly toxic to RBL-2H3 cell. Mechanistically, mitochondrial apoptotic pathway, as evidenced by the up-regulation of pro-apoptosis proteins such as Caspase3, Cyto-c and Bax, is activated by PCL@PSO via increased ROS and reduced mitochondria membrane potentials. Further, the up-regulation of APC and LATS1, and the down-regulation of OIP5 are contributed to the apoptosis of RBL-2H3 cell. Moreover, PCL@PSO could down-regulate the expression of histamine receptor HRH1 in RBL-2H3 cell, thereby inhibiting inflammation expansion. However, the study is limited by the absence of in vivo animal validation, and the underlying mechanisms remain to be fully elucidated. In particular, the upstream regulatory pathways governing ROS generation have yet to be comprehensively investigated. Conclusively, it is feasible to use PCL@PSO microspheres as candidate micro-carriers to deliver PSO, terminally inhibiting inflammatory response whilst promoting osteanagenesis, especially for individuals suffered from rheumatoid arthritis.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"354 ","pages":"Article 132185"},"PeriodicalIF":4.7,"publicationDate":"2026-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146191914","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}

{"title":"Upcycling waste paper into carbon dot; AgI composites for efficient pesticide degradation","authors":"Bosely Anne Bose ,&nbsp;Abhijit Saha ,&nbsp;Ange Nzihou ,&nbsp;Nandakumar Kalarikkal","doi":"10.1016/j.matchemphys.2026.132205","DOIUrl":"10.1016/j.matchemphys.2026.132205","url":null,"abstract":"<div><div>Organic pesticides are persistent pollutants that accumulate in the environment, posing serious risks to ecosystems and human health, particularly through contamination of water resources. Photocatalytic degradation offers a sustainable and efficient approach for eliminating these pesticides, providing a green solution for environmental remediation. In this study, we report a sustainable, eco-friendly approach to synthesizing carbon dots (CDs) from waste paper and incorporating them into silver iodide (AgI) to form highly efficient visible-light photocatalyst composites. The CDs, derived from waste paper, offer advantages of low cost, low toxicity, and excellent water solubility. The integration of CDs into AgI significantly enhances charge transfer and suppresses electron–hole recombination. The resulting AgI–CD composites exhibited superior photocatalytic activity (97% in 150 min) for the degradation of the pesticide Thiram, with the composite containing 10 wt% CD achieving the highest performance. This study not only provides a green recycling route for waste paper but also demonstrates the potential of AgI–CD composites for effective environmental remediation.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"354 ","pages":"Article 132205"},"PeriodicalIF":4.7,"publicationDate":"2026-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146192144","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}

{"title":"Green synthesis and characterization of platinum nanoparticles loaded with paclitaxel and coated with chitosan: a promising approach for breast cancer treatment","authors":"Mouhaned Y. Al-darwesh ,&nbsp;Maroua Manai ,&nbsp;Nesrine Boughzala ,&nbsp;Hammouda Chebbi","doi":"10.1016/j.matchemphys.2026.132192","DOIUrl":"10.1016/j.matchemphys.2026.132192","url":null,"abstract":"<div><div>Paclitaxel resistance remains a major therapeutic challenge in breast cancer, and is particularly pronounced in inflammatory breast cancer (IBC), where intrinsic aggressiveness contributes to limited response and rapid disease progression. In this study, we designed an eco-friendly synthesis method to develop a novel nanosystem based on platinum nanoparticles (Pt NPs) loaded with paclitaxel (PTX) as an efficient drug delivery platform for the treatment of breast cancer. The Pt NPs were synthesized using a green method employing <em>Foeniculum vulgare</em> (<em>F. vulgare</em>) seed extract. These nanoparticles were then loaded with PTX and coated with chitosan (Ch) to enhance drug delivery efficiency. The physicochemical properties of the nanoparticles were characterized using X-ray Diffraction (XRD), Transmission Electron Microscopy (TEM), Thermogravimetric Analysis (TGA), Field Emission Scanning Electron Microscopy (FESEM), Fourier Transform Infrared Spectroscopy (FTIR), Ultraviolet-Visible (UV-Vis) absorption spectroscopy, and zeta potential measurements. X-ray Diffraction (XRD) analysis confirmed the high purity and distinct crystalline nature of the resulting nanoparticles (Pt NPs and Pt-PTX-Ch). FESEM analyses revealed that the nanoparticles had a spherical morphology with a tendency to aggregate, with an average size ranging between 17 and 20 nm. Spectroscopic analysis showed absorption peaks at 270 nm for Pt NPs and 279 nm for Pt-PTX-Ch. Surface measurements recorded zeta potential values of −24 mV for Pt NPs and +36 mV for Pt-PTX-Ch. The nanoparticles demonstrated good biocompatibility with red blood cells (RBCs) in hemolytic activity assays, exhibiting no hemolytic effects at concentrations ranging from 7.5 to 120 μg/mL. Drug release studies indicated a sustained and pH-responsive release pattern. Apoptosis assays aligned with MTT results, confirming the effectiveness of the nanoparticles in precisely targeting cancer cells. Our <em>in vitro</em> study showed that the PT and PT + Ch treatments reduced proliferation, colony formation and migration in breast cancer with a better response in inflammatory breast cancer (IBC) (SUM149 and KPL4) <em>vs.</em> non-IBC (nIBC) cells (MDA-MB-231). This study highlights that Pt-PTX-Ch nanoparticles represent a promising system for the delivery of PTX, enhancing its efficacy against breast cancer models with higher response in IBC cells.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"354 ","pages":"Article 132192"},"PeriodicalIF":4.7,"publicationDate":"2026-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146191626","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}

{"title":"Enhanced electrochemical properties of Mn and Cu co-doped nickel cobaltite/rGO nanocomposites for superior supercapacitor electrode materials","authors":"Faria Usman ,&nbsp;Samra Zeb ,&nbsp;Mahwish Afzia ,&nbsp;Xianmin Zhang ,&nbsp;Rafaqat Ali Khan","doi":"10.1016/j.matchemphys.2026.132184","DOIUrl":"10.1016/j.matchemphys.2026.132184","url":null,"abstract":"<div><div>In this study, pristine NiCo₂O₄ and its Mn/Cu co-doped derivatives i.e., Ni_1-xMn_xCo_2-yCu_yO₄ nanoparticles, were synthesized by co-precipitation method, followed by their composite formation with rGO. The materials were characterized by XRD, FTIR, XPS and SEM to confirm the structure, morphology, surface chemical features and composition. XPS analysis confirmed the oxygen vacancies and electrically active metal sites, which enhanced electrode–electrolyte interactions as well as surface redox activity. Electrochemical studies indicated that composites with a nominal composition of Ni_0.5Mn_0.5Co_1.0Cu_1.0O₄/rGO, achieved maximum specific capacitance, measuring 1738 F g^-1 at a scan rate of 5 mVs⁻¹ with improved energy density of 196 Wh/Kg. GCD studies confirmed improved rate capability and remarkable cyclic stability, with its rGO composite retaining 95% of its specific capacitance after 5000 cycles at 5 A g^-1. The maximum specific capacitance we observed in this case was 558 F g^-1 at 1 A g^-1, having the capability of maintaining the property over various cycles. Additionally, the EIS behavior confirmed that Mn–Cu co-doped composite material with rGO has less series resistance (<em>R</em>_s). Nyquist plots supported the EIS analysis, confirming that all synthesized materials showed best capacitive behavior. Moreover, Mn–Cu co-doped composite had the lowest equivalent series resistance of 180 mΩ in comparison to that of pristine NiCo₂O₄. Through Randles circuits, we carefully interpreted how different interfaces are formed at electrode surface to undergo redox reaction beneficial for electrochemical activities.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"354 ","pages":"Article 132184"},"PeriodicalIF":4.7,"publicationDate":"2026-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146190784","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}

{"title":"Efficient photo-assisted desulfurization of real gas oil using CaFe2O4@SnO2 heterostructure catalyst under visible light irradiation","authors":"Asmaa A. Abdelrahman ,&nbsp;Wael A. Aboutaleb ,&nbsp;Doaa I. Osman ,&nbsp;Asmaa I. Zahran","doi":"10.1016/j.matchemphys.2026.132189","DOIUrl":"10.1016/j.matchemphys.2026.132189","url":null,"abstract":"<div><div>This study introduces an innovative technique for removing sulfur compounds from gas oil with a high sulfur concentration by irradiating it with visible light applying a multiple active site CaFe₂O₄@SnO₂ material as a novel photo-desulfurization catalyst. For comparison, pure SnO₂, CaFe₂O₄ and CaFe₂O₄@SnO₂ were fabricated by modified sol-gel method. The physicochemical characteristics of the synthesized samples were examined by XRD, XPS, BET, SEM, FTIR, UV-vis-DRS and PL technique in order to optimize photodesulfurization. PL and Tauc curves proved the lowest band gab value assigned to CaFe₂O₄@SnO₂. and SEM results revealed the formation of CaFe₂O₄@SnO₂ nano-composite.</div><div>The CaFe₂O₄@SnO₂ exhibited excellent desulfurization performance; achieving sulfur removal efficiency of 96.5% under the optimized conditions (3 g/L photocatalyst dosage, H₂O₂/oil of 4:1 for 30 min and DMF solvent to oil volume ratio of 4:1) and our results indicate remarkable selectivity and recyclability in desulfurization, presenting an alternative viewpoint in the search for effective desulfurization technology. The reaction mechanism was also provided.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"354 ","pages":"Article 132189"},"PeriodicalIF":4.7,"publicationDate":"2026-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146191595","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}

{"title":"Benzothiazole-conjugated perylene diimide/functionalized reduced graphene oxide composite electrode for flexible supercapacitors","authors":"Sudhir D. Jagadale ,&nbsp;Sidhanath V. Bhosale ,&nbsp;Sheshanath V. Bhosale","doi":"10.1016/j.matchemphys.2026.132170","DOIUrl":"10.1016/j.matchemphys.2026.132170","url":null,"abstract":"<div><div>The development of flexible devices based on organic small molecules (OSMs) will be a crucial advantage in modern portable and wearable electronic appliances. In this work, we investigate the energy storage capacity of benzothiazole functionalized perylene diimides such as 2,9-bis(6-methoxybenzo[<em>d</em>]thiazol-2-yl)anthra[2,1,9-def:6,5,10-d'e'f'] diisoquin oline-1,3,8,10(2H,9H)-tetraone (PDI-BTH1) and 2,9-bis(6-hydroxybenzo[<em>d</em>]thiazol-2-yl)anthra[2,1,9-def:6,5,10-d'e'f'] diisoquinoline-1,3,8,10(2H,9H)-tetraone (PDI-BTH2)-reduced graphene oxide (rGO) composite-based electrode materials. The PDI-BTH1/rGO and PDI-BTH2/rGO- based three-electrode supercapacitor (SC) device delivered excellent specific capacitance (<em>C</em>_sp) of about 350 and 295.92 F g⁻¹ at 1 A g⁻¹ current density. The presence of the methoxy (–OCH₃) group in the organic molecular skeleton influences the <em>C</em>_sp of the electrode in the SC device. Moreover, in two-electrode PDI-BTH1/rGO//PDI-BTH1/rGO symmetric supercapacitor devices at 0.5 A g⁻¹ offers remarkable <em>C</em>_sp of 321.08 F g⁻¹ and outstanding energy density (ED) of 57.79 Wh kg⁻¹ at 1079.37 W kg⁻¹ power density (PD) with impressive cycling stability of 106.74% after 10000 gravimetric charging and discharging (GCD) cycles. Furthermore, the flexible device has been developed by depositing the PDI-BTH1/rGO electrode layer on graphite foil (GF). By assembling the PDI-BTH1/rGO//PDI-BTH1/rGO on a graphite foil (GF) surface in two-electrode flexible symmetric supercapacitor (FSSC) devices, the electrochemical performance was measured. The electrochemical studies showed that the FSSC device with its two structures with bending angles of 0° and 180° exhibits an excellent <em>C</em>_sp of 66.40 mF cm⁻² and 57.90 mF cm⁻², respectively, at 0.5 mA cm⁻². After 5000 GCD cycles, both the FSSC devices with 0° and 180° bending angles exhibited excellent cycling stability with 94.98% and 84.55% <em>C</em>_sp retention. The flexible flat SSC device displayed ED of 11.95 μWh cm⁻² at 1.66 mW cm⁻² PD. Therefore, these FSSC devices represent significant potential for electronics.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"354 ","pages":"Article 132170"},"PeriodicalIF":4.7,"publicationDate":"2026-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146191596","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}

{"title":"Plasma resistance and etching behavior of APS Y2O3 coatings modified via NH4F immersion process","authors":"Jiwon Choi ,&nbsp;Daegeun Kim ,&nbsp;Hyewon Seok ,&nbsp;Kangduk Kim","doi":"10.1016/j.matchemphys.2026.132200","DOIUrl":"10.1016/j.matchemphys.2026.132200","url":null,"abstract":"<div><div>In this study, a Y₂O₃ coating layer deposited using the atmospheric plasma spray (APS) method was modified into a Y_xO_yF_z layer by controlling various variables with an NH₄F salt solution, and the plasma resistance was evaluated to confirm the possibility of its application as a seasoning process for semiconductor etching. As a result of NH₄F salt immersion, a new crystalline layer was formed on the Y₂O₃ coating layer when the salt concentration exceeded 30 wt%. In addition, the formation of a Y_xO_yF_z layer by increasing the immersion and heat-treatment temperatures through the reaction between NH₄F and Y₂O₃ was confirmed via scanning electron microscopy (SEM), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy analyses. Plasma resistance evaluation using CF₄/Ar/O₂ plasma revealed that the etching depth was generally reduced in the specimens in which the Y_xO_yF_z layer was formed via immersion compared with the original APS Y₂O₃ coating layer. SEM, surface roughness, and XRD analyses of the coating after plasma etching confirmed that the plasma resistance improved in the surface-modified specimens, which was attributed to the reduced surface roughness and formation of the yttrium oxyfluoride (YOF) layer. In addition, a gradual decrease in the rate of increase in etching depth was observed with increasing plasma exposure time, along with increased YOF phase formation at a salt concentration of 40 wt%.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"354 ","pages":"Article 132200"},"PeriodicalIF":4.7,"publicationDate":"2026-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146192213","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}

{"title":"Magnetism of Fe- and/or Co-enriched layer/TiO2/Ti composites","authors":"M.V. Adigamova,&nbsp;I.V. Lukiyanchuk,&nbsp;V.P. Morozova,&nbsp;I.A. Tkachenko,&nbsp;K.A. Saiankina,&nbsp;I.V. Malyshev","doi":"10.1016/j.matchemphys.2026.132201","DOIUrl":"10.1016/j.matchemphys.2026.132201","url":null,"abstract":"<div><div>Ti-supported surface structures with magnetic properties were prepared at constant current density of 0.15 A/cm² for 10 min using plasma electrolytic oxidation (PEO) in slurry electrolytes with solid particles of Fe(OH)₃ and Co(OH)₂ formed <em>in situ</em> in different ratios at their constant total concentration. The general electrolyte formula (mol/L) can be written as 0.066 Na₃PO₄ + 0.034 Na₂B₄O₇ + 0.006 Na₂WO₄ + 0.08 (Fe(III) + Co(II)). The coatings were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), electron probe microanalysis (EPMA) and magnetometry based on superconducting quantum interference device (SQUID). With an increase in the proportion of Co(OH)₂ particles in the electrolyte, the coatings were formed at higher voltages, which caused an increase in their thickness (from 25 to 82 μm) and porosity (from 27 to 35%). As to EPMA/EDX data, the coatings contained up to 6.5/15.8 at% Fe and 6.5/12.5 at% Co, depending on the electrolyte formula. Open pores with particles and closed pores contained up to 25.3 at% Fe and up to 26.1 at% Co. At room temperature, with increasing Co proportion in the coatings, the values of coercive force and saturation magnetization increased from 72 to 292 Oe and from 0.05 to 0.048 emu/g, respectively. At 3 K, the coercive force value in mixed coatings was lower (94–160 Oe) than that in individual coatings containing only one magnetic element (230 Oe). No synergistic effect was observed in mixed Fe-, Co-containing coatings either at room temperature or at helium temperature.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"354 ","pages":"Article 132201"},"PeriodicalIF":4.7,"publicationDate":"2026-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146191919","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}

{"title":"Design and optimization of MXene–perovskite solar absorbers using multi-geometry metasurface resonators with AI-based modeling","authors":"Krunal Patel ,&nbsp;Vishal Sorathiya ,&nbsp;Amar Y. Jaffar ,&nbsp;Ayman Alharbi ,&nbsp;Fahd M. Aldosari ,&nbsp;Abdullah G. Alharbi","doi":"10.1016/j.matchemphys.2026.132188","DOIUrl":"10.1016/j.matchemphys.2026.132188","url":null,"abstract":"<div><div>This work presents a design for a novel solar absorber and solar cell featuring a multi-shape resonator configuration, in which different resonator geometries (square, hexagonal, and circular) are integrated atop an Au–HTL–Perovskite–MXene–ETL stack to enhance plasmonic coupling and broadband absorption. The design is examined across a wide wavelength span from 0.15 to 3 μm. The performance of the solar absorber is compared using various ETL and HTL materials, and its response under cell sizes, different layer thicknesses, and resonator shapes is assessed. The addition of two innovative materials, MXene and Perovskite, to the structure enables the development of an ultra-efficient solar absorber that achieves absorption above 80% with angular stability up to 60°. We further simulated the J–V characteristics and showed that the device achieves a short-circuit current density of 22 mA/cm².We also analzsed refractive index, permittivity, permeability, and impedance to examine metamaterial effects, comparing absorption with the AM 1.5 solar spectrum. The proposed structure is analyzed using different ML models, including Gradient Boosting, kNN, Random Forest, Neural Network, and AdaBoost. For accurate prediction, the proposed model is evaluated using multiple error measurement parameters such as MSE, RMSE, MAE, MAPE, and R² for precise absorption spectrum prediction. Among all tested ML models, the neural network yields the lowest R² value of 0.88, while the other four models achieve an R² of 0.98. These analyses validate a strong potential for applying the proposed absorber design and predictive modelling approach to advanced solar cell technologies and thermal energy applications.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"354 ","pages":"Article 132188"},"PeriodicalIF":4.7,"publicationDate":"2026-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146191913","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}