Materials Science and Engineering: B最新文献

{"title":"Bio-composites with natural, nanomaterial additives and smart manufacturing: A path to sustainable microswimmers","authors":"Roopsandeep Bammidi ,&nbsp;Hymavathi Madivada ,&nbsp;Sreeramulu Dowluru","doi":"10.1016/j.mseb.2026.119213","DOIUrl":"10.1016/j.mseb.2026.119213","url":null,"abstract":"<div><div>The design, production, and characterization procedures of completely biodegradable microswimmers using a recently created biocomposite material based on polylactic acid supplemented with graphene nanoparticles and powdered <em>Ocimum sanctum</em> are covered in this study. Six microswimmer prototypes were created using 4D printing, injection molding, and filament extrusion in order to compare mechanical strength, precision, thermal stability, and swimming performance. High structural integrity, form flexibility, and manufacturing precision were provided by 4D printing and filament extrusion as compared to traditional techniques. Composites' enhanced performance was confirmed by increased interfacial bonding, tensile strength, and heat resistance as a result of graphene and <em>Ocimum sanctum</em> alteration. The material's resilience, stability, and biocompatibility were proven by extensive characterization using methods including FTIR, SEM, TGA, DSC, and tensile and stress-strain analysis. Comparative 3D modeling helped to improve process optimization and procedure repeatability. The biocomposite has significant promise as an environmentally benign, high-performing material for ecological remediation, microfluidics, and next-generation microswimmers for biomedical devices. Future research will improve material compositions and process parameters for flexibility and multifunctional efficiency increase, while the current study establishes the foundation for biopolymer-based smart microrobotics.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering: B","volume":"326 ","pages":"Article 119213"},"PeriodicalIF":4.6,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146023507","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":"Femtosecond-laser-induced highly regular grating nanostructures: Spatiotemporal control routes for near-field enhancement on metallic glass surfaces","authors":"Shijie Song ,&nbsp;Peilei Zhang ,&nbsp;Weilin Zhang ,&nbsp;Kefan Chen ,&nbsp;Lingxiao Song ,&nbsp;Qingyun Yang ,&nbsp;Hanxuan Huang ,&nbsp;Keran Jiang ,&nbsp;Guanglong Chen ,&nbsp;Tianzhu Sun ,&nbsp;Xia Ruan ,&nbsp;Chao Fang","doi":"10.1016/j.mseb.2026.119206","DOIUrl":"10.1016/j.mseb.2026.119206","url":null,"abstract":"<div><div>Leverage the flexible pulse splitting of femtosecond laser burst mode (BM) and the ultra-short time scale burst delay to increase the pulse count for creating efficient, high-quality, and highly regular laser-induced periodic surface structures (HR-LIPSS) on zirconium-based metallic glass (Zr-BMG). HR-LIPSS have subwavelength periodicity and quasi-regular nanopatterns aligned along the direction of the laser polarization with a period of 505 nm. This paper uses a combination of Maxwell's system of equations, electron-ion heat conduction effect, Navier-Stokes equations, and numerical analysis of the material removal process. It aims to reveal the complex kinetic process of laser-material interaction, especially the key mechanism of action in forming laser-induced periodic surface structures (LIPSS). The simulation outcomes closely align with the experimental data regarding the development trend and periodicity of the LIPSS structures, validating the accuracy of the simulation model. This consistency validates the accuracy of the simulation method and provides strong theoretical support for experimental observations, thereby deepening the understanding of the formation mechanisms of LIPSS.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering: B","volume":"326 ","pages":"Article 119206"},"PeriodicalIF":4.6,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146023506","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":"Biogenic carbon matrix with dual-mode adsorption capability: synthesis, characterization and mechanistic insights","authors":"Nirusha Srinanthakumar ,&nbsp;Ashantha Goonetilleke ,&nbsp;James McGree ,&nbsp;Erick R. Bandala ,&nbsp;Kannan Nadarajah","doi":"10.1016/j.mseb.2026.119226","DOIUrl":"10.1016/j.mseb.2026.119226","url":null,"abstract":"<div><div>The transformation of biowaste into high-performance functional materials presents a promising strategy for sustainable environmental technologies. In this study, a novel biogenic carbon-based catalytic matrix (CBCM) was synthesized from prawn shell waste, integrating chitin-derived carbon and in-situ formed calcite to yield a hybrid material with distinctive structural and surface characteristics. Comprehensive characterization using X-ray diffraction (XRD) and Fourier-transform infrared spectroscopy (FTIR) revealed a composite architecture featuring both organic (Chitin) and inorganic (Calcite) crystalline domains, along with abundant surface oxygenated functional groups (O<img>H, C<img>O, CO-NH, and C<img>O). These structural attributes underpin the CBCM's dual-mode adsorption capability, enabling simultaneous and efficient uptake of both cationic (Malachite green) and anionic (Congo red) dyes. Kinetic and isotherm analyses highlighted the dominant roles of hydrogen bonding and π-π interactions, directly linked to the material's functional groups and porous surface morphology. Response surface modeling confirmed strong agreement between predicted and experimental adsorption capacities (R² = 0.978), underscoring the reliability of the structure-function correlation. This work demonstrates how rational design and valorization of marine biowaste can yield multifunctional materials, with the CBCM serving as a proof-of-concept platform for pollutant capture and broader environmental applications.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering: B","volume":"326 ","pages":"Article 119226"},"PeriodicalIF":4.6,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146023648","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":"Super-stable dielectric temperature characteristic in BaTiO3-based lead-free relaxor ferroelectric ceramics","authors":"Ke Zhang ,&nbsp;Abudulai Nancy Bawah ,&nbsp;Ruixuan Wang,&nbsp;Chenglin Wang,&nbsp;Jingwang Lu,&nbsp;Jiajie Hao,&nbsp;Vendish Kweku Ennin,&nbsp;Chen Zhang","doi":"10.1016/j.mseb.2026.119215","DOIUrl":"10.1016/j.mseb.2026.119215","url":null,"abstract":"<div><div>Aiming for developing a X8R MLCC lead-free dielectric, this work presents the successful synthesis of (1-<em>x</em>)BaTiO₃-<em>x</em>Bi[(Mg_2/3Ta_1/3)_{1–0.015<em>x</em>}Nb_{0.015<em>x</em>}]O_{3+0.015<em>x</em>} [(1-<em>x</em>)BT-<em>x</em>BMTN] lead-free ceramics via solid-state reaction route, based on the aliovalent Nb⁵⁺ doping for defect engineering. The investigation focuses on how BMTN doping influences the microstructure and functional properties involving dielectric properties, ferroelectric properties as well as relaxor behavior of the novel BT based ceramic system. The XRD analysis indicates that with increasing BMTN content, the primary phase of (1-<em>x</em>)BT-<em>x</em>BMTN ceramics changes from tetragonal to pseudo-cubic perovskite. Based on the SEM observation, the isolated secondary phases is detected and BMTN addition effectively refines grains, leading to dense microstructure with small, uniform grain size. With increasing <em>x</em>, a drastic shift of the ferroelectric-paraelectric phase transition temperature <em>T</em>_<em>m</em> from 107.3 °C down to −34.9 °C is found. The (1-<em>x</em>)BT-<em>x</em>BMTN ceramic with <em>x</em> = 0.3 achieves excellent dielectric temperature stability, satisfying the X8R specification (<em>Δε</em>_<em>r</em><em>/ε</em>_<em>r</em> ≤ ±15%, −55 °C to 150 °C) while possessing a balanced combination of properties: A room-temperature permittivity (<em>ε</em>ᵣ_RT) of ∼600, loss tangent (tan<em>δ</em>_<em>RT</em>) of 0.0156, and breakdown strength (<em>E</em>_b) of 62.92 kV/cm. The (1-<em>x</em>)BT-<em>x</em>BMTN ceramics also exhibit strong frequency dispersion and enhanced phase transition diffuseness, with relaxor-like behavior validated by Vogel-Fulcher fitting. The <em>P</em>-<em>E</em> hysteresis loops indicate a decreased remanent polarization (2<em>P</em>_r) and polarization maximum (2<em>P</em>_m) after BMTN modification. The BMTN doped BT ceramics are dominated by Ohmic leakage conduction. And a recoverable energy storage density of 0.9 J/cm³ at 80 kV/cm provides a possibility for energy storage applications in (1-<em>x</em>)BT-<em>x</em>BMTN system</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering: B","volume":"326 ","pages":"Article 119215"},"PeriodicalIF":4.6,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146023649","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":"Copper-doped iron tungstate (Fe2WO6): correlating structural, vibrational, and optical properties with electrocatalytic activity for hydrogen evolution","authors":"Hilton B. da Silva ,&nbsp;Francisco G.S. Oliveira ,&nbsp;José S. Sarmento ,&nbsp;Raí F. Jucá ,&nbsp;Antônio.J.R. de Castro ,&nbsp;Simone R.F. Sabino ,&nbsp;Jaqueline V. Gunha ,&nbsp;Ana A.C. Alcanfor ,&nbsp;Juliermes C. Pereira ,&nbsp;Vicente O. Sousa Neto ,&nbsp;Francisco F. de Sousa ,&nbsp;João M. Soares ,&nbsp;Gilberto D. Saraiva","doi":"10.1016/j.mseb.2026.119184","DOIUrl":"10.1016/j.mseb.2026.119184","url":null,"abstract":"<div><div>The development of efficient, stable, and low-cost electrocatalysts for the hydrogen evolution reaction (HER) in alkaline media remains a major challenge for sustainable hydrogen production, as benchmark noble-metal catalysts are costly and difficult to scale. In this study, we address this challenge by systematically investigating copper-doped iron tungstate (Fe_2-xCuₓWO₆) as a non-noble-metal electrocatalyst, aiming to clarify how cation substitution can be used to tailor structure, microstructure, and electronic properties to enhance HER activity. A series of Fe_2-xCuₓWO₆ compounds (x = 0.00, 0.05, 0.10, 0.15, and 0.20) were synthesized and comprehensively characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), Raman and FTIR spectroscopy, optical measurements, magnetic analysis, and electrochemical techniques. XRD and Rietveld refinement confirm the formation of single-phase orthorhombic structures with Pbcn symmetry, while SEM/EDS reveal homogeneous elemental distribution and systematic grain-size evolution with Cu content. Raman spectroscopy evidences local lattice distortions and defect generation induced by Cu²⁺ incorporation, accompanied by changes in optical absorption and a transition from paramagnetic to weak ferromagnetic behavior at room temperature. Electrochemical impedance spectroscopy demonstrates a pronounced reduction in charge-transfer resistance with increasing Cu concentration, indicating enhanced electrical conductivity and improved reaction kinetics. Consequently, the optimized Cu-doped sample exhibits significantly enhanced HER performance in 1.0 M NaOH, with lower overpotential, reduced Tafel slope, and good electrochemical stability compared to pristine Fe₂WO₆. The novelty of this work lies in establishing a clear and quantitative correlation between Cu-induced structural and microstructural modifications, charge-transport enhancement, and alkaline HER performance in Fe₂WO₆-based catalysts, highlighting controlled Cu doping as an effective strategy for activating iron tungstate as a cost-effective alternative to noble-metal electrocatalysts.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering: B","volume":"326 ","pages":"Article 119184"},"PeriodicalIF":4.6,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145978868","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":"Dye-sensitized TiO₂ for enhanced photocatalytic synthesis of hexahydroquinazolinones","authors":"Md. Afroz Bakht ,&nbsp;Abdulrahman I. Alharthi ,&nbsp;Mshari Alotaibi ,&nbsp;Md Imtiaz Ali","doi":"10.1016/j.mseb.2026.119186","DOIUrl":"10.1016/j.mseb.2026.119186","url":null,"abstract":"<div><div>Pomegranate-dye-sensitized TiO₂ (POM - TiO₂) is claimed to be a heterogeneous photocatalyst in the multicomponent condensation of hexahydroquinazoline derivatives. As a consequence of a significant increase in the photoresponse of TiO₂ to the visible spectrum, dye significantly shortens the optical band gap of TiO₂ to 2.40 eV, which is compared to 3.20 eV with pristine TiO₂. An outstanding yield (89–97%) of a series of hexahydroquinazolinone derivatives was obtained in 40 min at room temperature under optimized reaction conditions (2 mg/mL catalyst loading, 100 mW cm⁻² visible light irradiation). Photocatalytic reaction systems were observed to be in a pristine and thermocatalytic environment, which promoted a faster reaction rate as well as a higher conversion. Therefore, it was established that POM-TiO₂ was stable and reusable with high activity until four consecutive reactions cycle with slight activity loss. In addition, a detailed catalytic characterization (FT-IR, XRD, XPS, UV–Vis, BET and SEM) is effectively established dye-anchoring and structural integrity of the photocatalyts. This paper demonstrates the possible application of pomegranate in the work of TiO₂ as a sensitizer of natural dye in the visible light to be used in the heterocyclic synthesis in a cost-effective and environmentally friendly protocol.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering: B","volume":"326 ","pages":"Article 119186"},"PeriodicalIF":4.6,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145978866","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":"From material to device: Integrated material, thin-film, and device optimization of Y, Gd, Sm doped TiO2 for Memristive applications","authors":"Shilpa Shivaram ,&nbsp;S. Rajesh ,&nbsp;Archana Ashok ,&nbsp;Alphonsa Maria Cyriac ,&nbsp;S. Anslin Priya","doi":"10.1016/j.mseb.2026.119180","DOIUrl":"10.1016/j.mseb.2026.119180","url":null,"abstract":"<div><div>Pure anatase TiO₂ nanoparticles (P1) and TiO₂ doped with 1 % yttrium (Y1), gadolinium (G1) and samarium (S1) were synthesized via the sol-gel method. Memristors were fabricated using spin coated thin films (pure and doped) via magnetron sputtering. An integrated optimization strategy for yttrium, gadolinium, and samarium doped TiO₂ spanning the material, thin film and device scales is presented, aiming at the development of customised memristors. Material properties were analysed using X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), transmission electron microscopy (TEM), and UV–Visible spectroscopy while thin films were examined optically. Thickness of thin films varied from 225 to 361 nm. Device performance was assessed through electrical measurements. Doping reduced the crystalline and particle size. G1 and Y1 exhibited the smallest crystalline (6.95 nm) and particle (26.18 nm) sizes respectively. S1, Y1 and G1 nanoparticles exhibited hexagonal, elongated agglomerates and spherical morphologies, with S1 displaying the highest oxygen vacancy. Band gaps decreased upon doping, with the lowest indirect band gap found in S1 (2.905 eV) and the smallest direct band gap observed in G1 (3.152 eV). Among the thin films investigated, S1 exhibited the lowest direct (3.59 eV) and indirect (3.26 eV) band gap energies. Memristors displayed narrow (S1) and wide (Y1) current-voltage hysteresis loops, with time dependent resistance and current variations measured for all devices. This study establishes the first integrated-analysis framework for the fabrication of customised Y, Gd, Sm doped TiO₂ memristors. Keywords TiO₂; yttrium; gadolinium; samarium; memristor; oxygen vacancy.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering: B","volume":"326 ","pages":"Article 119180"},"PeriodicalIF":4.6,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145928182","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":"Anomalous gas sensing characteristics of TiO2 nanorod arrays irradiated with high-energy ion beam","authors":"Sutapa Dey ,&nbsp;Shashi B. Mishra ,&nbsp;Arnab Hazra ,&nbsp;Debdulal Kabiraj ,&nbsp;Somnath C. Roy","doi":"10.1016/j.mseb.2026.119210","DOIUrl":"10.1016/j.mseb.2026.119210","url":null,"abstract":"<div><div>Controlled defect engineering using high-energy ion irradiation is an effective technique to tune the physical properties of a material at the nanoscale. Here, we report such effects on vertically oriented TiO₂ nanorod arrays grown on conductive glass substrate with different fluences, such as 5 × 10¹² and 5 × 10¹³ ions/cm², and change in resistance as a function of gas exposure was measured using hydrogen as the probe gas. The samples showed <em>n-</em>type characteristics from pristine to the fluence of 5 × 10¹² ions/cm²; while at higher fluence 5 × 10¹³ ions/cm², an <em>n</em>-to-<em>p</em> type transition in conductivity is observed. This is attributed to a combined effect of titanium vacancies and oxygen interstitials produced by the energetic ions. Our first-principles calculations show that higher irradiation fluence induces structural distortion that weakens hydrogen adsorption and suppresses charge transfer, collectively explaining the observed switch in gas sensing response and supporting the experimental findings.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering: B","volume":"326 ","pages":"Article 119210"},"PeriodicalIF":4.6,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146023508","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":"Tailoring the optical and structural properties of SnO2/SeO2 heterojunction nanofibers through electrospinning and thermal treatment","authors":"Weronika Smok","doi":"10.1016/j.mseb.2025.119164","DOIUrl":"10.1016/j.mseb.2025.119164","url":null,"abstract":"<div><div>In this work synthesis and characterization of SnO₂/SeO₂ heterojunction nanofibers fabricated via electrospinning followed by calcination at 500 °C and 600 °C is presented. The study provides a comprehensive analysis of the influence of calcination temperature on the structure, morphology, and optical properties of SnO₂/SeO₂ nanofibers. Results of the morphology analysis revealed that increasing the calcination temperature induces a reduction in both crystallite and nanofiber diameters, promotes the formation of structural defects, and facilitates the emergence of isolated nanoparticles on fiber surfaces. X-ray diffraction and X-ray photoelectron spectroscopy analyses confirmed the coexistence of amorphous SeO₂ and polycrystalline SnO₂ phases, forming heterojunctions, in which the density of structural defects and oxygen vacancies increases with increasing calcination temperature. The analysis of the optical properties of the produced SnO₂/SeO₂ nanofibers showed strong ultraviolet absorption accompanied by a temperature-dependent narrowing of the optical band gap from 2.77 eV to 2.47 eV, attributed to defect-induced energy levels within the band structure. These findings demonstrate that controlling the parameters of the calcination process enables the tuning of the optical and structural properties of SnO₂/SeO₂ nanofibers, making them promising candidates for applications in optoelectronics, photocatalysis, and advanced photovoltaic devices.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering: B","volume":"326 ","pages":"Article 119164"},"PeriodicalIF":4.6,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145928180","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":"P2-type layered oxides exhibiting enhanced charge transfer and stability via Tb doping for sodium-ion batteries","authors":"Shaojun Shi,&nbsp;Suqin Yang,&nbsp;Zhixiong Huang,&nbsp;Hongmei Ji,&nbsp;Wenyu Yin,&nbsp;Xiaoyan Tang,&nbsp;Han Mao","doi":"10.1016/j.mseb.2026.119185","DOIUrl":"10.1016/j.mseb.2026.119185","url":null,"abstract":"<div><div>The capability of the layered oxide depends on the structure stability and the fast conduction of sodium ions and electrons. In order to improve the poor structure stability due to Jahn–Teller distortion and the unsatisfactory rate capability, we aim to effectively improve the charge transfer and structural stability of layered oxides via Tb doping for sodium-ion batteries (SIBs). A P2-type layered oxide Na_0.67Mn_0.59Ni_0.1Cu_0.1Fe_0.2Tb_0.01O₂ (Tb-MNCF) comprising a hollow spherical secondary hierarchical structure is synthesized. The small peak shifts in the diffraction pattern devoid of impure peaks and the uniform elemental distribution of Tb-MNCF, as evidenced by the mapping results, indicate the successful doping of Tb. Tb-MNCF delivers high reversible capacity of 70.3 mAh g⁻¹ at 2 A g⁻¹. Furthermore, Tb-MNCF demonstrates 73 % capacity retention after 150 cycles at 0.5 A g⁻¹. Furthermore, the mechanism of the enhanced charge transfer of Tb-MNCF is studied via in situ EIS. The results reveal that Tb plays a pillar role to stabilize the structure of the doped material. Moreover, it also facilitates rapid charge transfer. Therefore, the proposed Tb doping strategy offers an effective pathway to overcome limitations of layered oxides in application for SIBs.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering: B","volume":"326 ","pages":"Article 119185"},"PeriodicalIF":4.6,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145928272","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}