Journal of Sol-Gel Science and Technology最新文献

{"title":"Sol–Gel functionalization of cotton textiles with zinc oxide for antibacterial and non-flammable properties","authors":"Gauhar Zh. Jamanbayeva,&nbsp;Troy C. Breijaert,&nbsp;Bizhamal R. Taussarova,&nbsp;Mariya Sh. Suleimenova,&nbsp;Gulaim A. Seisenbaeva","doi":"10.1007/s10971-026-07165-5","DOIUrl":"10.1007/s10971-026-07165-5","url":null,"abstract":"<div><p>Multifunctional cotton textiles with antibacterial properties and reduced flammability are highly desired for various types of protective clothing. A major challenge in their production is achieving stable and sustainable functionalization that remains effective after repeated washing. In this study, we propose a novel strategy for grafting platelet-shaped zinc oxide (ZnO) crystals onto the surface of cotton fabric using an amino–silica interface that enables strong binding of zinc cations. The fabric was first coated with a layer of (3-aminopropyl)triethoxysilane (APTES), which subsequently complexed zinc cations and mediated the deposition of ZnO on the surface. The antibacterial activity of the ZnO nanoparticle–modified cotton fabric was evaluated using the disk diffusion method against <i>Escherichia coli</i> (no inhibition observed), <i>Staphylococcus aureus</i> (inhibition zone: 25.0 ± 0.5 mm), and <i>Pseudomonas aeruginosa</i> (inhibition zone: 35.0 ± 0.5 mm). The modified cotton retained its antibacterial performance without any loss after five washing cycles. Flammability tests demonstrated promising behavior, with less than 2% of the material converted to ash after direct exposure to an open flame for 15 s. These findings provide a promising route for the development of durable and efficient antibacterial and flame-resistant cotton textiles based on zinc oxide nanoparticles.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":664,"journal":{"name":"Journal of Sol-Gel Science and Technology","volume":"118 1","pages":""},"PeriodicalIF":3.2,"publicationDate":"2026-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10971-026-07165-5.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147643092","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Structural, magnetic and magnetocaloric studies of La2CoMnO6 double perovskite","authors":"Sreethi. S. R,&nbsp;Smitha Joseph,&nbsp;P. A. Aleena,&nbsp;Jibi Kunjumon,&nbsp;Ayona K. Jose,&nbsp;Felicia Aswathy. W,&nbsp;Roshan Jose,&nbsp;R. S. Rimal Isaac,&nbsp;Sujay Chakravarty,&nbsp;D. Sajan","doi":"10.1007/s10971-026-07163-7","DOIUrl":"10.1007/s10971-026-07163-7","url":null,"abstract":"<div><p>The double perovskite material La₂CoMnO₆ was synthesized using the sol-gel method. Its structural characteristics were analyzed through X-ray powder diffraction (XRD), with Rietveld refinement confirming that the sample crystallizes in a monoclinic structure within the P2₁/n space group. Field emission scanning electron microscopy (FESEM) images revealed a non-uniform, slightly porous, and agglomerated structure, while elemental composition was determined through EDAX analysis. Magnetic studies indicated a frustrated magnetic ground state with competing interactions, along with a para-to-ferro magnetic transition at a Curie temperature (T_C) of 209 K. Analysis using Arrott’s plot confirmed that the magnetic transition in La₂CoMnO₆ is of second order. Magnetocaloric studies showed that the Δ<i>S</i>_<i>M</i>(T) curve remains nearly stable over the investigated temperature range, demonstrating a broadened entropy profile, which positions this material as a promising candidate for magnetic cooling applications.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":664,"journal":{"name":"Journal of Sol-Gel Science and Technology","volume":"118 1","pages":""},"PeriodicalIF":3.2,"publicationDate":"2026-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10971-026-07163-7.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147643128","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhanced thermoelectric properties in Ni-Doped Cu2SnS3 thin films via sol–gel synthesis and post-sulfurization","authors":"Shoug M. Alghamdi","doi":"10.1007/s10971-026-07164-6","DOIUrl":"10.1007/s10971-026-07164-6","url":null,"abstract":"<div><p>Copper-based chalcogenides have gained increasing attention for thermoelectric applications because of their cost-effectiveness, eco-friendly nature, and inherently low thermal conductivity. In this work, the pristine and Ni-doped Cu₂SnS₃ films were successfully deposited through a sol–gel-based spin-coating approach, and the effects of Ni incorporation from 5 to 20% relative to Sn on the structural, morphological, and thermoelectric properties were comprehensively studied. The XRD analysis confirmed the formation of polycrystalline Cu₂SnS₃ with minor secondary phases appearing at higher Ni content, while the crystallite size decreased and micro-strain increased with increasing Ni doping. The SEM coupled with EDX characterization confirmed the formation of compact and well-distributed films, demonstrating uniform incorporation of Ni throughout the matrix. Temperature-dependent thermoelectric investigations conducted in the 300–800K range indicated that Ni incorporation increased the charge carrier density and electrical conductivity, and reduced the Seebeck coefficient value. The 15% Ni-doped Cu₂SnS₃ film exhibited the maximum thermoelectric performance, with a maximum figure of merit of 0.47 at 800 K. The enhancement was attributed to an optimal balance between enhanced charge carrier transport and reduced total thermal conductivity due to increased phonon scattering from lattice strain and defects. These results highlight Ni-doped Cu2SnS3 thin films as a potential material for high-temperature thermoelectric applications.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div><div><p>Ni-doped Cu₂SnS₃ thin films were synthesized via a sol–gel spin-coating method with controlled Ni incorporation (5–20%) to tailor structural and thermoelectric properties. Optimized 15% Ni doping enhances carrier transport while suppressing thermal conductivity through defect-induced phonon scattering. The resulting films achieve a maximum ZT of 0.47 at 800 K, demonstrating strong potential for high-temperature thermoelectric applications.</p></div></div></figure></div></div>","PeriodicalId":664,"journal":{"name":"Journal of Sol-Gel Science and Technology","volume":"118 1","pages":""},"PeriodicalIF":3.2,"publicationDate":"2026-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10971-026-07164-6.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147642841","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Tailoring the optoelectronic, photo-catalytic, thermoelectric and thermodynamic properties of halides Li2InBiX6 (X=Cl, Br, I) for energy conversion—DFT study","authors":"Huda A. Alburaih,&nbsp;Sikander Azam,&nbsp;NA. Noor,&nbsp;A. Laref,&nbsp;Sohail Mumtaz","doi":"10.1007/s10971-026-07155-7","DOIUrl":"10.1007/s10971-026-07155-7","url":null,"abstract":"<div><p>Double perovskite halides are identified as promising materials for diverse applications specifically as renewable energy sources (solar cell devices) and thereby addressing the global energy shortage. This study aims to assess the physical (electronic, optical, dielectric, and thermoelectric) properties of Li₂InBiX₆ (X = Cl, Br, I) halides by means of density functional approach. Owing to the materials’ minimal formation energy, the structures demonstrate stability in the cubic phase. The analyzed double perovskite halides display a semiconducting nature, characterized by a direct bandgap, i.e., Li₂InBiCl₆ (Eg = 1.7 eV), Li₂InBiBr₆ (Eg = 1.3 eV), and Li₂InAuI₆ (Eg = 1.1 eV). Moreover, complex dielectric functions are examined to better understand the optical characteristics of the analyzed halides. These halides are well-suited for optoelectronic applications, as evidenced by the estimated optical parameters that indicate maximum light absorption in IR and visible spectrums. The study extends for analyzing ZT value, Seebeck factor, and electronic conductance within the temperature range 30–800 K. The relatively small band gap suggests enhanced suitability for thermoelectric applications, as evidenced by a higher power factor. The photo-catalytic study revealed that Li₂InBiX₆ are good candidates for the oxidization of H₂O at pH values 0–7. Based on the anticipated thermoelectric and optical characteristics, the studied double perovskite halides emerge as potential candidates for energy conversion systems.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":664,"journal":{"name":"Journal of Sol-Gel Science and Technology","volume":"118 1","pages":""},"PeriodicalIF":3.2,"publicationDate":"2026-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10971-026-07155-7.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147642851","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of Al2O3 and CuO additives on the bioactivity and protective behavior of the SiO2-Na2O-CaO-P2O5 glassy bilayer coating deposited on 316L stainless steel","authors":"Mohammad Reza Tohidifar,&nbsp;Zahra Salmani-Mirzaei","doi":"10.1007/s10971-026-07156-6","DOIUrl":"10.1007/s10971-026-07156-6","url":null,"abstract":"<p>The present article addressed the effects of Al₂O₃ and CuO additives on bioactivity and protective behavior of SiO₂-Na₂O-CaO-P₂O₅ double-layer glassy coating on 316 L stainless steel. For this purpose, several coatings with different Al₂O₃ (0, 3, 6, and 12 wt.%) and CuO (0, 1, 2, and 3 wt.%) contents were deposited by sol-gel dip coating. Scanning electron microscopy (SEM), X-ray diffraction (XRD), differential scanning calorimetry (DSC), in vitro bioactivity assay, potentiodynamic polarization (PDP), atomic force microscopy (AFM), and Fourier transform infrared spectroscopy (FTIR) were used to characterize the samples. The incorporation of Al₂O₃ up to 6 wt.% decreased the formation of cracks and improved the anti-corrosion behavior where, the corrosion current density was 0.048 μA.cm⁻². Addition of Al₂O₃ up to 3 wt.% could effectively improve the bioactivity as it facilitated the hydroxyapatite (HA) formation (21.98 wt.% after immersion in SBF for 7 days). Thus Al₂O₃ content of 3–6 wt.% was determined as the optimal value, providing the coating with thickness of 3 µm, mean roughness of 98 nm, and adhesion strength of 4.3 MPa. Results also revealed that incorporation of CuO up to 3 wt.% modified the coating structure such that the mean particles size of the coating declined to 416 nm from 1368 nm.</p>","PeriodicalId":664,"journal":{"name":"Journal of Sol-Gel Science and Technology","volume":"118 1","pages":""},"PeriodicalIF":3.2,"publicationDate":"2026-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10971-026-07156-6.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147643093","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"ZnO nanoparticles synthesized by co-precipitation method: characterization and application in dye photodegradation and petroleum wastewater remediation via hydrocarbon degradation and heavy metal adsorption","authors":"Fatiha Mebarki,&nbsp;Ahmed Bouaoune,&nbsp;Abderrhmane Bouafia,&nbsp;Souhaila Meneceur","doi":"10.1007/s10971-026-07162-8","DOIUrl":"10.1007/s10971-026-07162-8","url":null,"abstract":"<div><p>Petroleum wastewater, contaminated with organic dyes, hydrocarbons, and heavy metals (e.g., As, Cd, Pb, Zn), poses significant ecological and health risks, demanding effective remediation. This study details the synthesis of ZnO nanoparticles (NPs) via co-precipitation, optimized with calcination at 500 °C for 3 h to boost crystallinity. Characterization via UV-Vis spectrophotometry revealed a strong absorption peak at 310 nm and a 3.08 eV bandgap, ideal for photocatalysis. X-ray diffraction (XRD) confirmed a hexagonal wurtzite structure with a 23 ± 4 nm crystallite size, while FTIR identified Zn-O modes at 418 cm⁻¹ and 833 cm⁻¹. SEM displayed asymmetric particles (peaking at 60–70 nm), and a -27.6 mV zeta potential indicated excellent colloidal stability. Thermogravimetric analysis (TGA-DSC) showed a 14.3% mass loss up to 1000 °C, with an endothermic peak at 685 °C, reflecting thermal stability. Photocatalytically, ZnO NPs degraded 97.5% of methylene blue in 60 min (k_app = 0.06637 min⁻¹) and removed 93.3% oil-in-water, 91.4% chemical oxygen demand, and 97.7% total suspended solids from petroleum wastewater in 30 min. They also achieved &gt;99.9% heavy metal adsorption, with 100% removal for Be, Cr, Mo, Sb, and Se. These results establish ZnO NPs as a potent, sustainable solution for wastewater treatment, tackling diverse pollutants.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":664,"journal":{"name":"Journal of Sol-Gel Science and Technology","volume":"118 1","pages":""},"PeriodicalIF":3.2,"publicationDate":"2026-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10971-026-07162-8.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147643129","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Additive manufacturing of zirconia‑stabilized silica-phosphate glasses from sol-gel-based photocurable inks","authors":"Daria Savraeva,&nbsp;May Yam Moshkovitz-Douvdevany,&nbsp;Vitaly Gutkin,&nbsp;Shlomo Magdassi","doi":"10.1007/s10971-026-07154-8","DOIUrl":"10.1007/s10971-026-07154-8","url":null,"abstract":"<div><p>Transparent, rare-earth-doped silica-based glasses are promising candidates for photonic and laser applications due to their favorable optical properties. Here, we report the fabrication of three-dimensional silica-phosphate and silica-zirconia-phosphate (Nd³⁺-doped) glasses, using a sol-gel-derived, particle-free photocurable resin that is tailored for digital light processing (DLP) 3D printing and UV-assisted mold casting. The resin consists solely of sol-gel precursors and a dual photopolymerizable component, enabling high-resolution printing without particle dispersion. Following room-temperature aging and a short thermal treatment at 700 °C for 1 h, transparent, crack-free glasses were obtained. The resulting glass structures exhibited transmittance values of 76.2 ± 0.3% and 77.1 ± 0.2% at 680 nm and 850 nm, respectively, and retained an amorphous microstructure. Phosphate incorporation improved the distribution of Nd³⁺ ions and suppressed photoluminescence (PL) quenching, but partial phosphate loss occurred during sintering. The addition of zirconia effectively stabilizes the phosphate within the silica network, preserving the composition of the printing solution. Phosphate addition led to a pronounced enhancement of PL intensity, up to tenfold for the 92SiO₂-4P₂O₅-4ZrO₂ composition doped with 0.7 mol % Nd₂O₃, compared to phosphate-free glass (96SiO₂-4ZrO₂). This facile and combined photopolymerization and the sol-gel-based DLP printing process enable the fabrication of geometrically complex, compositionally tunable, transparent laser glasses, demonstrating a cost-effective route for developing custom photonic and optoelectronic components.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":664,"journal":{"name":"Journal of Sol-Gel Science and Technology","volume":"118 1","pages":""},"PeriodicalIF":3.2,"publicationDate":"2026-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10971-026-07154-8.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147607031","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Structural and vibrational characteristics of MnFe2O4 spinal ferrites for electrochemical hydrogen evolution reaction","authors":"H. Nady,&nbsp;Ibraheem O. Ali,&nbsp;Ebtsam K. Alenezy,&nbsp;E. E. Salama,&nbsp;Tarek M. Salama,&nbsp;Ahmed A. Elhenawy,&nbsp;H. H. Mohamed","doi":"10.1007/s10971-025-07096-7","DOIUrl":"10.1007/s10971-025-07096-7","url":null,"abstract":"<div><p>The depletion of fossil fuels and rising global energy demand highlight the urgent need for green alternatives such as hydrogen. Developing low-cost, efficient electrocatalysts remains a key challenge for sustainable hydrogen production via water splitting. This study investigates the synthesis and electrocatalytic performance of MnFe₂O₄ spinel ferrite nanoparticles for the hydrogen evolution reaction (HER). The nanoparticles were synthesized via the sol-gel method and characterized using X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), attenuated total reflectance Fourier-transform infrared spectroscopy (ATR-FTIR), Brunauer–Emmett-Teller (BET) surface area analysis, field-emission scanning electron microscopy (FESEM), energy-dispersive X-ray spectroscopy (EDS), and high-resolution transmission electron microscopy (HRTEM). XRD analysis revealed the formation of a cubic spinel structure, while ATR-FTIR spectra displayed characteristic metal-oxygen vibrational bands at 538 and 419 cm^-1. XPS analysis revealed mixed oxidation states of Mn²⁺/Mn³⁺ and Fe²⁺/Fe³⁺, indicating the formation of redox-active heterojunctions that enhance catalytic performance. Morphological characterization revealed rough, interconnected clusters with a surface area of 36.63 m²/g and a pore volume of 0.088 cm³/g. EDX analysis confirmed the elemental composition of the MnFe₂O₄ sample. Electrochemical performance was evaluated in 1 M KOH at 25 °C using a MnFe₂O₄/NF electrode, which delivered a cathodic current density of 113.46 mA cm^-2 at –1.5 V and required an overpotential of only 197.1 mV at 10 mA cm^–2. The low overpotential and charge transfer resistance reveal the strong HER activity of MnFe₂O₄ and its promise as an efficient, stable electrocatalyst. Hirshfeld surface analysis and 2D fingerprint plots were employed to investigate the interatomic interactions governing crystal stability and surface topography of MnFe₂O₄. The results emphasize a highly stable structure, primarily driven by strong, directional Fe···O (61.7%) and Mn···O (26.5%) contacts, together contributing over 88% of the total packing interactions. The dense packing distorts FeO₆ octahedra, creating concave, strained regions that act as structured binding pockets. This provides a sterically and electronically favorable environment for water adsorption and activation.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":664,"journal":{"name":"Journal of Sol-Gel Science and Technology","volume":"118 1","pages":""},"PeriodicalIF":3.2,"publicationDate":"2026-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10971-025-07096-7.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147561904","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Structural, vibrational, and dielectric characterization of sol–gel synthesized spinel ferrite for high-performance multifunctional applications","authors":"Chaima ben Makhlouf,&nbsp;M. K. M. Ali,&nbsp;Wided Nouira,&nbsp;Fakher Hcini,&nbsp;Wael Chouk,&nbsp;Naoufel Ben Hamadi,&nbsp;Sobhi Hcini,&nbsp;Malek Gassoumi","doi":"10.1007/s10971-025-07049-0","DOIUrl":"10.1007/s10971-025-07049-0","url":null,"abstract":"<div><p>Ni₀.₄Cd₀.₃Mg₀.₃Fe₂O₄ spinel ferrite was synthesized by the sol–gel method and calcined at 950 °C. XRD confirmed a well-crystallized cubic spinel structure with crystallite sizes between 99 and 113 nm. Dielectric and conductivity analyses revealed that conduction and relaxation are driven by the same charge carriers, with increased charge carrier mobility at higher frequencies. The Non-Small Polaron Tunneling (NSPT) model successfully described charge transport—selected over alternatives like CBH or OLPT due to the observed increase in the frequency exponent s with temperature—yielding a low activation energy (0.025 eV) and a polaron binding energy of 0.41 eV. Ghosh scaling demonstrated universal transport behavior, while impedance spectroscopy highlighted the role of grains and grain boundaries. The material’s high resistivity at room temperature makes it a promising candidate for microwave and electronic device applications.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":664,"journal":{"name":"Journal of Sol-Gel Science and Technology","volume":"118 1","pages":""},"PeriodicalIF":3.2,"publicationDate":"2026-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10971-025-07049-0.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147561909","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Structural, microstructure, magnetic, and dielectric characterization of BaFe12O19/NiFe2O4ferrite nanocomposites","authors":"Hemal Khatri,&nbsp;Tanuj Gupta,&nbsp;Chetna C. Chauhan,&nbsp;Manasi Raval,&nbsp;Rajshree B. Jotania","doi":"10.1007/s10971-026-07122-2","DOIUrl":"10.1007/s10971-026-07122-2","url":null,"abstract":"<div><p>BaFe₁₂O₁₉ and NiFe₂O₄ ferrite powders were synthesized separately using the sol gel auto-combustion method, and physically mixed in various weight ratios (100:0, 50:55, 40:60, 20:80, 0:100). The nanocomposites were heated at 1000 °C and characterized using XRD, SEM, VSM, and dielectric techniques. XRD analysis confirmed the presence of both hexagonal (BaFe₁₂O₁₉) and cubic (NiFe₂O₄) phases in the prepared nanocomposites. SEM micrographs revealed notable changes in the grain morphology and grain size with increasing nickel ferrite content. Magnetic hysteresis studies indicated that all BaFe₁₂O₁₉/NiFe₂O₄ nanocomposites exhibit multi-domain nature as reflected by the squareness ratio (&lt;0.5). The coercivity varied from 0.0216 T to 0.0813 T, while saturation magnetization varied between 27.3 Am²/kg to 38.2 Am²/kg. The nanocomposite containing the equal proportion (50%) of BaFe₁₂O₁₉ and NiFe₂O₄ exhibited the highest dielectric constant (ε' = 60 at 100 Hz). Typical ferrite behavior was observed in the frequency-dependent AC conductivity, dielectric constant, dielectric loss, electric modulus, and impedance responses. The 50% nanocomposite shows a single semi-circular arc in the higher frequency region, where other nanocomposites show double arcs at lower and higher frequency regions.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":664,"journal":{"name":"Journal of Sol-Gel Science and Technology","volume":"118 1","pages":""},"PeriodicalIF":3.2,"publicationDate":"2026-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10971-026-07122-2.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147561653","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}