Journal of Materials Science & Technology最新文献

{"title":"Cooling-controlled microstructure engineering for mechanical–magnetic synergy in high-strength non-oriented silicon steel","authors":"Yuran Xing, Zhaoyang Cheng, Wei Zhou, Wenbin Xie, Yuanyuan Li, Shiqi Zhang, Siyu Huang, Jing Liu","doi":"10.1016/j.jmst.2026.09.042","DOIUrl":"https://doi.org/10.1016/j.jmst.2026.09.042","url":null,"abstract":"Developing non-oriented silicon steels with both high mechanical strength and low iron loss is critical for high-speed drive motors, yet remains challenging because conventional strengthening strategies often deteriorate magnetic performance. Herein, post-annealing cooling is employed as a kinetic control parameter to regulate the retained Cu precipitation state and magnetic domain structure without introducing a separate aging treatment. Rapid cooling retained a high density of fine, coherent B2-type Cu-rich clusters and BCC Cu nanoprecipitates by suppressing diffusion-mediated coarsening and structural transformation, whereas slower cooling promoted precipitate growth and evolution toward coarse incoherent 9R Cu precipitates. Combined density functional theory calculations and three-dimensional micromagnetic simulations indicate that fine coherent Cu-rich precipitates provide effective precipitation strengthening while causing relatively weak perturbation of local magnetization. Meanwhile, rapid cooling refined the magnetic domain width and reduced iron loss by approximately 24%, although a slight decrease in magnetic induction occurred because of the intensified γ-fiber texture. These results demonstrate that post-annealing cooling provides an effective kinetic pathway for coordinating precipitation strengthening, magnetic domain refinement, and texture evolution in high-strength non-oriented silicon steels.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"23 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2026-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149086969","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Dual role of oxygen vacancies in Mn0.3Cd0.7S/WO3−x S-scheme heterojunctions for strengthening internal electric field and extending light harvesting toward efficient H2 evolution","authors":"Bin Fang, Ruoning Zhan, Senlin Zhang, Yingxinjie Wang, Xiuqiang Xie, Nan Zhang","doi":"10.1016/j.jmst.2026.09.049","DOIUrl":"https://doi.org/10.1016/j.jmst.2026.09.049","url":null,"abstract":"S-scheme heterojunctions exhibit unique advantages in promoting charge separation while preserving the strong redox capability of photogenerated carriers, and their efficiency is strongly dependent on the interfacial internal electric field (IEF). Herein, we report an oxygen-vacancy engineering Mn<ce:inf loc=\"post\">0.3</ce:inf>Cd<ce:inf loc=\"post\">0.7</ce:inf>S/WO<ce:inf loc=\"post\">3</ce:inf><ce:italic><ce:inf loc=\"post\">−x</ce:inf></ce:italic> (M/O<ce:inf loc=\"post\">V</ce:inf>) S-scheme heterojunction for efficient photocatalytic H<ce:inf loc=\"post\">2</ce:inf> evolution. In this system, oxygen vacancies in WO<ce:inf loc=\"post\">3</ce:inf><ce:italic><ce:inf loc=\"post\">−x</ce:inf></ce:italic> play dual roles. One is to modulate the electronic structure of tungsten oxide, thereby enlarging the Fermi level (<ce:italic>E</ce:italic><ce:inf loc=\"post\">F</ce:inf>) difference relative to Mn<ce:inf loc=\"post\">0.3</ce:inf>Cd<ce:inf loc=\"post\">0.7</ce:inf>S, and consequently strengthening the IEF to accelerate directional charge transfer. The other is to induce localized surface plasmon resonance, which broadens the light harvesting range of M/O<ce:inf loc=\"post\">V</ce:inf> photocatalysts into the near-infrared (NIR) region for more efficient solar energy utilization. The synergistic effect endows the M/O<ce:inf loc=\"post\">V</ce:inf> heterojunction with a H<ce:inf loc=\"post\">2</ce:inf> evolution rate of 1600 μmol g<ce:sup loc=\"post\">−1</ce:sup> h<ce:sup loc=\"post\">−1</ce:sup> under visible-NIR irradiation, which is 2.4 times as high as that of the Mn<ce:inf loc=\"post\">0.3</ce:inf>Cd<ce:inf loc=\"post\">0.7</ce:inf>S/WO<ce:inf loc=\"post\">3</ce:inf> counterpart derived from air-calcined WO<ce:inf loc=\"post\">3</ce:inf><ce:italic><ce:inf loc=\"post\">−x</ce:inf></ce:italic>. This work provides an effective strategy for boosting photocatalytic H<ce:inf loc=\"post\">2</ce:inf> evolution through defect-induced <ce:italic>E</ce:italic><ce:inf loc=\"post\">F</ce:inf> engineering and IEF regulation toward solar-to-chemical energy conversion.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"10 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2026-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149086965","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Modulating localized microenvironments via construction of CoS/CN heterojunction to strengthen hydroxyl adsorption for efficient 5-hydroxymethylfurfural electrooxidation","authors":"Jianfei Li, Hao Feng, Liying Fu, Shunxin Shao, Xuxia Chen, Chunbo Liu, Yanqing Liu, Guangbo Che","doi":"10.1016/j.jmst.2026.09.046","DOIUrl":"https://doi.org/10.1016/j.jmst.2026.09.046","url":null,"abstract":"Electrocatalytic oxidation of 5-hydroxymethylfurfural (HMF) provides an efficient route for the production of value-added chemicals. However, the slow oxidation of the hydroxyl groups in the HMF molecule limits the reaction rate. Herein, a CoS/CN with a p-n heterojunction structure was designed and successfully synthesized. Among the prepared samples, the optimal current density of CoS/CN-4 is 2.5 times that of CoS at 1.47 V vs. RHE. Machine learning (ML) was used to optimize the experimental parameters (coulombs, potential, and stirring rate) to achieve nearly 100% of 2,5-furandicarboxylic acid (FDCA) yield and Faradaic efficiency (FE), and FDCA yield remained above 95% after 25 cycles. Ultraviolet photoelectron spectroscopy (UPS) combined with theoretical calculations indicates that the superior performance is attributed to the redistribution of interface charges, forming positively charged CN centers, which enhance the adsorption ability for electron-withdrawing hydroxyl functional groups. Different from CoS with 5-hydroxymethyl-2-furanic acid (HMFCA) pathway to produce FDCA, CoS/CN with 2,5-diformylfuran (DFF) pathway exhibits a faster HMF oxidation rate. Finally, 72% yield of higher-value product named 5-formyl-2-furancarboxylic acid (FFCA) was achieved by tuning the base concentration, outperforming most previously reported electrocatalysts. This work provides important theoretical and experimental insights for rationally modulating HMF adsorption behavior to alter the reaction pathway and accelerate biomass conversion.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"1 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2026-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149086971","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Salisbury screen structure to enhance the spectral defense performance of cellulose-based composite","authors":"Jiasheng Wei, Long Jiang, Ping He, Hao Jia, Yifang Zhao, Gustavo Henrique Denzin Tonoli, R Gnanamoorthy, Xin Tong, Lei Dai","doi":"10.1016/j.jmst.2026.09.041","DOIUrl":"https://doi.org/10.1016/j.jmst.2026.09.041","url":null,"abstract":"The development of materials that seamlessly integrate electromagnetic interference (EMI) shielding and infrared stealth is of vital importance in addressing the challenges of complex electromagnetic environments and advanced multi-spectral detection. However, conventional metallic spectral defense materials suffer from high thermal conductivity and high density, making it difficult to meet the requirements for lightweight, high-performance materials. Herein, we incorporated the classic Salisbury screen structure into cellulose-based composites to overcome this problem. The composite featured a “conductor-insulator-conductor” architecture consisting of a cellulose nanofiber (CNF)/metal carbides/nitrides (MXene) film as the conductive layer and a CNF/gelatin aerogel as the insulating layer. This design exploited high interfacial reflection and phase-delay‑induced destructive interference, achieving an EMI shielding effectiveness of up to 90.8 dB at a thickness of only 1.3 mm. Simultaneously, the Salisbury screen configuration inherited the low infrared emissivity of MXene and the thermal insulation capability of the aerogel, substantially reducing the radiation temperature of the hot target surface and exhibiting outstanding infrared stealth performance. By modulating a sustainable cellulose platform with a classic wave‑interference architecture, this work establishes a new paradigm for next‑generation spectrally compatible defense materials that combine high‑performance EMI shielding and infrared stealth in a lightweight, eco‑friendly composite.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"10 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2026-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149086982","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Localized-state sensitization and coordination-environment modulation enhance Tm3+ near-infrared luminescence in a rare-earth double perovskite: Imaging and hierarchical optical encryption","authors":"Huangyao Chen, Can Yuan, Kang Wang, Lei Yang, Ti Feng, Zhanghai Tian, Yu Li, Xiaomin Fan, Jianxin Tang, Yuanhui Dai, Xiang Guo, Ruirui Cui","doi":"10.1016/j.jmst.2026.09.043","DOIUrl":"https://doi.org/10.1016/j.jmst.2026.09.043","url":null,"abstract":"Lead-free halide double perovskites combine low toxicity, structural tunability, and good dopant compatibility, making them important host materials for rare-earth near-infrared luminescence. However, the weak 4f–4f absorption of rare-earth ions limits near-infrared output under near-ultraviolet excitation. Here, we report a multiband Cs<ce:inf loc=\"post\">2</ce:inf>NaGdCl<ce:inf loc=\"post\">6</ce:inf> phosphor co-doped with Sb<ce:sup loc=\"post\">3+</ce:sup> and Tm<ce:sup loc=\"post\">3+</ce:sup>. Under near-ultraviolet excitation, the material simultaneously produces self-trapped exciton emission at 463 nm and characteristic Tm<ce:sup loc=\"post\">3+</ce:sup> emissions at 808, 1222, and 1432 nm, with the near-infrared internal quantum efficiency reaching 47.41%. Sb<ce:sup loc=\"post\">3+</ce:sup> increases the internal quantum efficiency of the host from 0.72% to 90.91%. The <ce:sup loc=\"post\">1</ce:sup>G<ce:inf loc=\"post\">4</ce:inf> level of Tm<ce:sup loc=\"post\">3+</ce:sup> serves as an energy bridge, enabling a maximum Sb<ce:sup loc=\"post\">3+</ce:sup>→Tm<ce:sup loc=\"post\">3+</ce:sup> energy-transfer efficiency of 62.64%. Density functional theory calculations show that Tm<ce:sup loc=\"post\">3+</ce:sup> doping barely alters the band-edge structure of Cs<ce:inf loc=\"post\">2</ce:inf>NaGdCl<ce:inf loc=\"post\">6</ce:inf>, whereas Sb 5s/5p–Cl 3p hybridization creates localized states within the band gap that account for the enhanced near-ultraviolet absorption. Sb<ce:sup loc=\"post\">3+</ce:sup> also induces local charge rearrangement and octahedral distortion, reducing the local symmetry of [TmCl<ce:inf loc=\"post\">6</ce:inf>]<ce:sup loc=\"post\">3−</ce:sup> and thereby favoring a higher radiative probability for Tm<ce:sup loc=\"post\">3+</ce:sup> 4f–4f transitions. The packaged near-infrared phosphor-converted light-emitting diode enables clear night-vision and transmission imaging. By exploiting the similar visible luminescence of the series of samples and their differing responses to excitation wavelength and detection window, we also constructed a dual-gated platform for hierarchical dynamic optical information encryption. These results reveal the dual role of Sb<ce:sup loc=\"post\">3+</ce:sup> in near-ultraviolet photosensitization and regulation of the local coordination environment of Tm<ce:sup loc=\"post\">3+</ce:sup>, and demonstrate the use of emission spanning the visible, near-infrared-I, and near-infrared-II regions in multi-scenario imaging and hierarchical optical information encryption.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"7 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2026-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149086968","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Cooperative elemental variations: A novel composition control strategy based on the cluster formula approach","authors":"Shuang Zhang, Haiwei Jiang, Baihao Zhang, Wanyu Ding, Cunlei Zou, Zizuo Ran, Chuang Dong","doi":"10.1016/j.jmst.2026.09.039","DOIUrl":"https://doi.org/10.1016/j.jmst.2026.09.039","url":null,"abstract":"Composition control is primary for alloy production. The present work addresses the long-standing concern in alloy production: precise composition control within the general standard, using the example of popular 316L austenitic stainless steel. By using the cluster formula approach, the ideal composition zone can be identified for any alloy grade, e.g., (Cr, Mo, Si)<ce:inf loc=\"post\">3.25±0.25</ce:inf>-(Ni, Mn)<ce:inf loc=\"post\">2±0.25</ce:inf>-Fe<ce:inf loc=\"post\">bal</ce:inf> for the substitutional-type austenitic face-centered cubic solid solution of 316L, where the two elemental groups represent respectively ferrite and austenite stabilizers. The corresponding wt.% elemental ranges are (16.0–17.5)Cr-(2–2.7)Mo-(0.2–0.8)Si-(10.3–12.7)Ni-(1.2–1.9)Mn-Fe-(0–0.03)C. Then, mathematical equations are derived to describe the cooperative elemental variations in wt.% to comply with the specified formula zone. For 316L, the equations lead to cooperative elemental variations 17.6 ≤ Cr+0.63Mo+1.70Si ≤ 20.5, 11.5 ≤ Ni+1.06Mn ≤ 14.7, and 5.8 ≤ (Cr+0.63Mo+1.70Si)-(0.90Ni+0.95Mn) ≤ 8.7, where the element symbol represents the element’s wt.%. The formulated composition zone in combination with the cooperative elemental variations provides a general composition control strategy for alloy production.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"35 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2026-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149086972","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Processing-driven interplay of interfacial asymmetry and microstructure in spin-orbit effects of Pt/Co heterostructures","authors":"Han Sol Kim, Jiyoung Lee, Ye Eun Kim, Changsoo Kim, Young Keun Kim","doi":"10.1016/j.jmst.2026.09.044","DOIUrl":"https://doi.org/10.1016/j.jmst.2026.09.044","url":null,"abstract":"Deposition conditions such as Ar pressure and power density are well-known to influence the surface and microstructure of sputtered thin films and multilayers, which in turn affect spin-orbit coupling-related magnetic properties such as interfacial Dzyaloshinskii-Moriya interaction (DMI) and spin-orbit torque (SOT) in nonmagnetic/ferromagnetic heterostructures. Nonetheless, a holistic approach to understanding how processing conditions influence magnetic properties has been understudied. This study investigates how deposition conditions affect the surface roughness and microstructure of the Pt layer, and how these factors impact DMI and SOT in Pt/Co heterostructures. The Pt surface roughness exhibits a non-monotonic dependence on Ar pressure from 1.5 to 20 mTorr, altering the interfacial asymmetry and, consequently, varying the DMI energy density from 0.93 to 1.19 mJ/m<ce:sup loc=\"post\">2</ce:sup>. In contrast, power density shows a weak influence on roughness and DMI within the investigated range from 1.23 to 7.40 W/cm<ce:sup loc=\"post\">2</ce:sup>. Post-deposition annealing promotes interdiffusion at the Pt/Co interface, reducing both the surface anisotropy (<ce:italic>K</ce:italic><ce:inf loc=\"post\">s</ce:inf>) and the absolute value of the DMI (Deff). Increasing Ar pressure also modifies the Pt microstructure, reducing crystallite size from 5.02 to 2.92 nm and increasing microstrain from 0.22 to 0.37. These microstructural changes promote electron scattering and increase electrical resistivity from 27.8 to 92.8 μΩ cm, accompanied by an increase in the damping-like SOT efficiency (<ce:italic>ξ</ce:italic><ce:inf loc=\"post\">DL</ce:inf>) up to 0.24. Varying the power density also increases crystallite size from 3.33 to 4.76 nm, leading to a rise in the switching current density (<ce:italic>J</ce:italic><ce:inf loc=\"post\">c</ce:inf>) from 48.6 to 69.0 MA/cm<ce:sup loc=\"post\">2</ce:sup>, despite its relatively weak influence on surface roughness and DMI. These results reveal how deposition conditions affect both the interfacial and microstructural characteristics of Pt layers and their associated properties in Pt/Co heterostructures.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"12 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2026-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149086967","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Kinetics-driven heterogeneous nucleation of yolk-shell metal sulfides toward tunable microwave absorption","authors":"Wenqi Song, Lianfei Ding, Chenyu Wang, Chunyang Lan, Zhaona Du, Wangchang Geng, Panbo Liu","doi":"10.1016/j.jmst.2026.09.037","DOIUrl":"https://doi.org/10.1016/j.jmst.2026.09.037","url":null,"abstract":"The regulation of heterogeneous nucleation is considered a promising strategy in constructing multiple hetero-interfaces and simultaneously promoting interfacial polarization. However, the precise control of heterogeneous nucleation during the growth of the crystal nucleus still remains a huge challenge. In this work, a kinetics-driven heterogeneous nucleation strategy via the change of gradient concentration has been proposed to realize the phase evolution for yolk-shell metal sulfides. The results indicate that excessive Zn<ce:sup loc=\"post\">2+</ce:sup>/Co<ce:sup loc=\"post\">2+</ce:sup> species regulate the sulfur liberation and facilitate the formation of multi-phased metal sulfides, thereby generating increased concentration of sulfur vacancies. As expected, benefiting from the cooperative merits of optimized impedance, introduced sulfur vacancies, multiple hetero-interfaces, and yolk-shell architectures, the yolk-shell ZnCo<ce:inf loc=\"post\">2</ce:inf>S<ce:inf loc=\"post\">4</ce:inf>/ZnS composites exhibit a maximum reflection loss of −55.9 dB, an effective absorption bandwidth of 8.6 GHz, and a greatest radar cross section reduction value of 23.9 dB m<ce:sup loc=\"post\">2</ce:sup>. Meanwhile, the as-synthesized composites display superior specific reflection loss and specific effective absorption bandwidth than the vast majority of counterparts. Furthermore, this study inspires a new insight in regulating the phase evolution via a kinetics-driven heterogeneous nucleation strategy.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"41 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2026-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149087290","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Template-induced assembly and in situ polymerization for constructing uniformly distributed molybdate-secondary-doped polyaniline toward self-passivating and self-healing epoxy coatings","authors":"Guohui Wang, Haowei Bian, Fandi Meng, Rui Liu, Yu Cui, Shenglong Zhu, Fuhui Wang, Li Liu","doi":"10.1016/j.jmst.2026.09.045","DOIUrl":"https://doi.org/10.1016/j.jmst.2026.09.045","url":null,"abstract":"Conductive polymer coatings show great promise for the passivation protection of metals. However, the aggregation of conductive polymers and the gradual deterioration of electrochemical activity still limit their long-term protection in harsh marine environments. In this study, plasma-modified basalt (MB) scales were employed as two-dimensional templates for the induced assembly and in situ polymerization of aniline (ANI), followed by secondary doping with molybdate ions (MoO<ce:inf loc=\"post\">4</ce:inf><ce:sup loc=\"post\">2−</ce:sup>). The resulting P-Mo/MB filler was incorporated into an epoxy (EP) resin to construct a multifunctional coating for Al alloys. The uniformly distributed polyaniline (PANI) improves filler dispersion within the EP resin, while providing more accessible redox-active sites and helping alleviate localized electric field concentration. Additionally, MoO<ce:inf loc=\"post\">4</ce:inf><ce:sup loc=\"post\">2−</ce:sup> secondary doping enhances the electrochemical cycling stability of PANI and enables pH-responsive release of the inhibitor. The P-Mo/MB/EP coating maintains a |<ce:italic>Z</ce:italic>|<ce:inf loc=\"post\">0.01 Hz</ce:inf> value of 2.46 × 10<ce:sup loc=\"post\">10</ce:sup> Ω cm<ce:sup loc=\"post\">2</ce:sup> after 150 days of immersion, approximately 10 times higher than that of the MB/EP coating. Surface and cross-sectional analyses reveal the formation of a compact protective film with a thickness of approximately 450 nm on the Al alloy surface. Moreover, no obvious corrosion is observed in the scratched area of the P-Mo/MB/EP coating after 120 h, accompanied by the gradual formation of a continuous protective film in the damaged area. These results demonstrate that the synergistic integration of physical shielding, self-passivation, and self-healing provides an effective strategy for developing long-term multifunctional anti-corrosion coatings.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"23 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2026-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149086966","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Coordination-locked metastable zirconia from MOF pyrolysis drives enhanced metal–support interaction for high-performance formic acid dehydrogenation","authors":"Xin Liu, Zhaojun Dong, Meiyan Wang, Qiaoyi Zhang, Hongtan Cai, Xiliang Gong, Li Zhu, Jingchen Zhang, Zeshuo Meng, Haoteng Sun, Zhengyan Du, Xiufeng Hao","doi":"10.1016/j.jmst.2026.09.040","DOIUrl":"https://doi.org/10.1016/j.jmst.2026.09.040","url":null,"abstract":"Palladium catalysts for formic acid dehydrogenation (FAD) are profoundly influenced by the crystal phase of the support, yet the phase-dependent electronic metal–support interaction (EMSI) remains mechanistically elusive. Herein, we craft a metastable tetragonal ZrO<ce:inf loc=\"post\">2</ce:inf> (t-ZrO<ce:inf loc=\"post\">2</ce:inf>) support through the confined pyrolysis of an NH<ce:inf loc=\"post\">2</ce:inf>-UiO-66 metal-organic framework (MOF). The in situ formed O–Zr–N coordination network kinetically locks the t-ZrO<ce:inf loc=\"post\">2</ce:inf> phase, preserving abundant defects and enabling robust EMSI with Pd nanoparticles. This results in exceptional Pd dispersion and interfacial electron transfer, a remarkably high turnover frequency of 11088 h<ce:sup loc=\"post\">−1</ce:sup> for FAD at 323 K, surpassing the performance of many recently reported Pd-based catalytic systems. By integrating in situ spectroscopy, synchrotron radiation analysis, and PALLAS machine-learning path searches, we unveil that the O–Zr–N network kinetically stabilizes t-ZrO<ce:inf loc=\"post\">2</ce:inf> by raising the lattice reconstruction barrier. Furthermore, the gradient acid–base sites on t-ZrO<ce:inf loc=\"post\">2</ce:inf> synergize with Pd–O–Zr interfacial charge transfer to substantially lower the energy barrier for HCOO<ce:sup loc=\"post\">−</ce:sup> dehydrogenation. This work establishes a new paradigm for engineering metal–support synergy via precise crystal-phase control of oxide supports.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"150 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2026-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149086970","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}