Applied Surface Science最新文献

{"title":"An OES-feedback-controlled HiPIMS approach for controlling the deposition of (AlCrTiVZr)1-xNx high-entropy nitride coatings","authors":"Yue Wang, Weihao Jiang, Chengcan Li, Yuanbo Li, Yuan Xia, Guodong Li, Yi Xu","doi":"10.1016/j.apsusc.2026.168469","DOIUrl":"https://doi.org/10.1016/j.apsusc.2026.168469","url":null,"abstract":"A closed-loop deposition system based on high power impulse magnetron sputtering (HiPIMS) combined with optical emission spectroscopy (OES) feedback control is proposed for the synthesis of (AlCrTiVZr)<ce:inf loc=\"post\">1-x</ce:inf>N<ce:inf loc=\"post\">x</ce:inf> coatings. To control the plasma state, the OES feedback control system adjusts the N<ce:inf loc=\"post\">2</ce:inf> flow rate in real time, stabilizing the Cr optical emission intensity (520.8 nm) at setpoints (20%-60%) defined by relative Cr optical emission intensity based on hysteresis. Decreasing the OES setpoint increases discharge current and substrate bias current, commonly enhancing plasma density and the ion bombardment characteristic of HiPIMS. The coatings exhibit compositional stability along the growth direction, reaching an overstoichiometric state at 20% setpoint with a deposition rate of 40.1 nm/min. The microstructure evolves from a fully amorphous structure (100–40% setpoints) to a self-organized bilayer structure (30–20%), which consists of an amorphous bottom layer and a top nanocrystalline/amorphous nanocomposite layer, with the nanocrystalline phase exhibiting a single NaCl-type FCC structure. Furthermore, reducing the setpoint from 30% to 20% thickens the top layer, increases crystallinity, and promotes grain growth from 2.9 nm to 5.5 nm. Meanwhile, the hardness and toughness show significant improvement as the setpoint decreases, peaking at 36.2 GPa (H) and 0.113 (H/E) at the setpoint of 20%.","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"34 1","pages":"168469"},"PeriodicalIF":6.7,"publicationDate":"2026-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149084774","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Optimal, not maximum: how molecular alignment governs ice adhesion on modified aluminum surfaces","authors":"M. Ruan, X.L. Guan, Q. Sun, Y.Y. Wang, J.L. Lei, B. Li, X.J. Lu, Z.G. Hu, Q. He","doi":"10.1016/j.apsusc.2026.168478","DOIUrl":"https://doi.org/10.1016/j.apsusc.2026.168478","url":null,"abstract":"Superhydrophobic coatings provide great promise for anti-icing applications, yet the ice adhesion reduction molecular mechanism remains poorly understood. Experimental studies with quantum mechanical (QM) and molecular dynamics (MD) simulations are integrated to reveal the underlying mechanisms of anti-icing behavior. It is found that anti-icing performance is maximized at an optimal coverage of 25% FAS-17 modifier with vertically aligned molecular configurations disrupting hydrogen bonding between ice and surface. The ice adhesion strength is reduced by 85% compared to bare surfaces. It suggests a general design principle that high anti-icing performance arises from controlled molecular order, not maximal density. These insights provide transferable strategies of eco-friendly alternatives and guide a rational development of durable, low-ice-adhesion surfaces such as high-voltage power lines.","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"34 1","pages":"168478"},"PeriodicalIF":6.7,"publicationDate":"2026-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149084796","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sulfur-source-regulated BiVO4/SnS2/Bi2S3 ternary heterojunctions for synergistic TC-Cr(VI) removal: Experimental and DFT mechanistic insights","authors":"Pengyu Zhang, Jinping Zhang, Zihao Xie, Yake Wang, Tong Zhang, Yunchao Mu, Joshi Mahesh Kumar, Xinli Li","doi":"10.1016/j.apsusc.2026.168461","DOIUrl":"https://doi.org/10.1016/j.apsusc.2026.168461","url":null,"abstract":"The coexistence of tetracycline (TC) and hexavalent chromium (Cr(VI)) in water creates a typical refractory combined pollution, whereas single photocatalysts are limited by severe carrier recombination, narrow spectral response and poor simultaneous removal capability. Herein, a series of BiVO&lt;ce:inf loc=\"post\"&gt;4&lt;/ce:inf&gt;/SnS&lt;ce:inf loc=\"post\"&gt;2&lt;/ce:inf&gt;/Bi&lt;ce:inf loc=\"post\"&gt;2&lt;/ce:inf&gt;S&lt;ce:inf loc=\"post\"&gt;3&lt;/ce:inf&gt; ternary heterojunction photocatalysts were synthesized via a two-step hydrothermal method using four sulfur sources (Na&lt;ce:inf loc=\"post\"&gt;2&lt;/ce:inf&gt;S·9H&lt;ce:inf loc=\"post\"&gt;2&lt;/ce:inf&gt;O, L-cysteine, thiourea and thioacetamide) to regulate Bi&lt;ce:inf loc=\"post\"&gt;2&lt;/ce:inf&gt;S&lt;ce:inf loc=\"post\"&gt;3&lt;/ce:inf&gt; in-situ growth. The effects of sulfur source on morphology, structure, optical properties and photoelectrochemical performance were systematically studied, alongside the photocatalytic activity for single pollutant and mixed TC-Cr(VI) pollutants. XRD, SEM, TEM and XPS confirmed successful heterojunction formation, with sulfur source significantly affecting Bi&lt;ce:inf loc=\"post\"&gt;2&lt;/ce:inf&gt;S&lt;ce:inf loc=\"post\"&gt;3&lt;/ce:inf&gt; nucleation morphology and interfacial contact. The morphologies of Bi&lt;ce:inf loc=\"post\"&gt;2&lt;/ce:inf&gt;S&lt;ce:inf loc=\"post\"&gt;3&lt;/ce:inf&gt; varied significantly with the sulfur source, from a complete film coating (BSS-Na&lt;ce:inf loc=\"post\"&gt;2&lt;/ce:inf&gt;S with Na&lt;ce:inf loc=\"post\"&gt;2&lt;/ce:inf&gt;S·9H&lt;ce:inf loc=\"post\"&gt;2&lt;/ce:inf&gt;O), small nanoparticles (BSS-C&lt;ce:inf loc=\"post\"&gt;3&lt;/ce:inf&gt;H&lt;ce:inf loc=\"post\"&gt;7&lt;/ce:inf&gt;NO&lt;ce:inf loc=\"post\"&gt;2&lt;/ce:inf&gt;S with L-cysteine) and aggregated nanoparticles (BSS-CH&lt;ce:inf loc=\"post\"&gt;4&lt;/ce:inf&gt;N&lt;ce:inf loc=\"post\"&gt;2&lt;/ce:inf&gt;S with thiourea), to uniformly dispersed elongated whiskers (BSS-C&lt;ce:inf loc=\"post\"&gt;2&lt;/ce:inf&gt;H&lt;ce:inf loc=\"post\"&gt;5&lt;/ce:inf&gt;NS with thioacetamide), with the former exhibiting the smallest specific surface area. BSS-C&lt;ce:inf loc=\"post\"&gt;2&lt;/ce:inf&gt;H&lt;ce:inf loc=\"post\"&gt;5&lt;/ce:inf&gt;NS extended the visible-light absorption to the near-infrared region with a narrowed bandgap of 2.04 eV. Photoelectrochemical tests showed that BSS-C&lt;ce:inf loc=\"post\"&gt;2&lt;/ce:inf&gt;H&lt;ce:inf loc=\"post\"&gt;5&lt;/ce:inf&gt;NS possessed the highest capacitance (15.34 mF/cm&lt;ce:sup loc=\"post\"&gt;2&lt;/ce:sup&gt;), longest carrier lifetime, smallest Nyquist arc and lowest Mott-Schottky slope, indicating optimal carrier separation and transport. In mixed TC-Cr(VI) system, BSS-C&lt;ce:inf loc=\"post\"&gt;2&lt;/ce:inf&gt;H&lt;ce:inf loc=\"post\"&gt;5&lt;/ce:inf&gt;NS achieved 100 % Cr(VI) reduction (60 min) and 80.9 % TC degradation (100 min), with good stability over four cycles. DFT calculations combined with EPR analysis, confirm that the work function gradient (BiVO&lt;ce:inf loc=\"post\"&gt;4&lt;/ce:inf&gt; &lt; SnS&lt;ce:inf loc=\"post\"&gt;2&lt;/ce:inf&gt; &lt; Bi&lt;ce:inf loc=\"post\"&gt;2&lt;/ce:inf&gt;S&lt;ce:inf loc=\"post\"&gt;3&lt;/ce:inf&gt;) drives the formation of a built-in electric field at the heterojunction interface, establishing a Type-II charge transfer pathway that enables stepwise directional migration of photogen","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"10 1","pages":"168461"},"PeriodicalIF":6.7,"publicationDate":"2026-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149084776","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Solvent polarity-regulated morphologies of MOFs for enhanced tumor microwave hyperthermia","authors":"Diyi Feng, Yanling Liang, Xin Tan, Zihan Yuan, Weikun Li, Nuoya Chen, Xiaojing Wu, Fangzhou Liu, Rongsheng Lu, Ling Liu, Liqin Ge","doi":"10.1016/j.apsusc.2026.168387","DOIUrl":"https://doi.org/10.1016/j.apsusc.2026.168387","url":null,"abstract":"Microwave (MW) hyperthermia is a well-established tumor therapy characterized with rapid heating rate and deep tissue penetration. Metal-organic frameworks (MOFs) have emerged as promising MW sensitizers due to their diverse morphologies, which directly determine the microwave-to-thermal conversion efficiencies. Herein, a mild morphological regulation strategy for copper 1,3,5-benzenetricarboxylate (HKUST-1) via adjusting solvent polarity is reported, which enables the controllable transformation between spherical and strip-like morphologies. From the molecular simulation, it confirms that the change of solvent polarity regulates the strength and parameters of intermolecular hydrogen bonds, results in inducing the aggregation behavior of HKUST-1 nanoparticles. In vitro MW heating experiments demonstrate distinct microwave-to-thermal conversion efficiencies between two morphologies, enabling their applications in different tumor treatment scenarios. The strip-like HKUST-1 exhibits significantly enhanced MW absorption performance compared with spherical HKUST-1, which is attributed to the increased copper ion concentration and enhanced dielectric loss caused by morphological aggregation. Compared with the control group, spherical HKUST-1 increases as high as 80.4 % of the microwave-to-thermal conversion efficiency and exhibits a tumor inhibition rate of approximately 73.6 %, rendering it suitable for tumor therapies requiring mild thermal modulation to minimize damage to surrounding normal tissues. In contrast, strip-like HKUST-1 improves the conversion efficiency to 101.6% and achieves a tumor inhibition rate of approximately 82.3%, enabling rapid and effective ablation of large-volume tumors. In summary, this work provides a novel strategy for the morphological regulation of MOFs and lays a solid foundation for the development of high-performance microwave sensitizers for synergistic tumor therapy.","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"1 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2026-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148979862","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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 waste to high-energy anode: Al3+-enhanced interfacial integration enables robust SiOx/recycled graphite heterostructures","authors":"Juan Hong, Xinhang Li, Lu Ding, Shuangyu Liu, Huaiyu Shao, Yuanhang Hou, Hui Cui, Chuandong Zhou, Honggang Zhang, Baoju Yang, Lu Yue","doi":"10.1016/j.apsusc.2026.168364","DOIUrl":"https://doi.org/10.1016/j.apsusc.2026.168364","url":null,"abstract":"The rapid expansion of the lithium-ion battery (LIB) market has resulted in a dual crisis of resource scarcity and escalating electronic waste. Waste graphite generated from industrial diamond wire cutting of graphite products is often discarded despite its high crystallinity and potential as a conductive scaffold for advanced anodes. Herein, we present a sustainable strategy to upgrade waste graphite by constructing a robust SiO<ce:italic><ce:inf loc=\"post\">x</ce:inf></ce:italic>/recycled graphite heterostructure through Al<ce:sup loc=\"post\">3+</ce:sup>-enhanced interfacial integration. In this architecture, Al<ce:sup loc=\"post\">3+</ce:sup> ions act as multifunctional “welding” nodes, coordinating with nitrogen/oxygen-containing functional groups to bridge the high-capacity SiO<ce:italic><ce:inf loc=\"post\">x</ce:inf></ce:italic> and the defect-rich recycled graphite surface. This strategy not only reconstructs the conductive network but also buffers the volume expansion of SiO<ce:italic><ce:inf loc=\"post\">x</ce:inf></ce:italic>. Combined with a hydrofluoric acid −assisted surface treatment to mitigate irreversible lithium consumption, the resulting Al-SiO<ce:italic><ce:inf loc=\"post\">x</ce:inf></ce:italic>@N-C/AG anode delivers a high reversible capacity of ∼ 611 mAh g<ce:sup loc=\"post\">−1</ce:sup> at 1 A g<ce:sup loc=\"post\">−1</ce:sup> and superior long-term stability with 90.1% capacity retention over 500 cycles. Notably, the initial Coulombic efficiency is boosted to 74.4%, approaching commercial benchmarks. This work demonstrates a practical pathway for transforming industrial waste into high-performance energy storage components, bridging the gap between sustainable resource management and advanced interface engineering.","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"24 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2026-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148946941","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Hematite-modified MWCNT/ionic liquid carbon paste electrodes for selective four-electron oxygen reduction in acidic media","authors":"José Ibarra, J.R. Sosa-Acosta, Rodrigo del Río, Rodrigo Henriquez, Ricardo Faccio, Enrique A. Dalchiele, Camila Pía Canales, Roxana Arce, Galo Ramírez","doi":"10.1016/j.apsusc.2026.168366","DOIUrl":"https://doi.org/10.1016/j.apsusc.2026.168366","url":null,"abstract":"Developing efficient, stable, and cost-effective electrocatalysts for the oxygen reduction reaction (ORR) in acidic media remains a critical challenge for advancing technologies such as proton exchange membrane fuel cells (PEMFCs). Platinum group metals (PGMs) dominate this field, but they are costly and scarce. This work explores transition metal oxides (TMOs) integrated into a carbon paste matrix as PGM-free alternatives. We synthesized α-Fe<ce:inf loc=\"post\">2</ce:inf>O<ce:inf loc=\"post\">3</ce:inf>, Co<ce:inf loc=\"post\">3</ce:inf>O<ce:inf loc=\"post\">4</ce:inf>, and CoFe<ce:inf loc=\"post\">2</ce:inf>O<ce:inf loc=\"post\">4</ce:inf> nanoparticles and incorporated them into a composite electrode comprising multi-walled carbon nanotubes (MWCNTs) and an N-octylpyridinium hexafluorophosphate ionic liquid (IL) binder. Preliminary electrochemical screening by cyclic voltammetry in O<ce:inf loc=\"post\">2</ce:inf>-saturated 0.1 M HClO<ce:inf loc=\"post\">4</ce:inf> suggested a qualitative activity trend: MWCNTs/IL/ α-Fe<ce:inf loc=\"post\">2</ce:inf>O<ce:inf loc=\"post\">3</ce:inf> &gt; MWCNTs/IL/CoFe<ce:inf loc=\"post\">2</ce:inf>O<ce:inf loc=\"post\">4</ce:inf> &gt; MWCNTs/IL/Co<ce:inf loc=\"post\">3</ce:inf>O<ce:inf loc=\"post\">4</ce:inf> &gt; MWCNTs/IL. The optimized MWCNTs/IL/α-Fe<ce:inf loc=\"post\">2</ce:inf>O<ce:inf loc=\"post\">3</ce:inf> composite exhibited enhanced ORR performance, with an onset potential of approximately +350 mV vs. RHE and a current density of 11 mA cm<ce:sup loc=\"post\">−2</ce:sup>. Such activity was attributed to a cooperative effect between the well-dispersed α-Fe<ce:inf loc=\"post\">2</ce:inf>O<ce:inf loc=\"post\">3</ce:inf> nanoparticles and the conductive MWCNTs/IL matrix. Electrochemical impedance spectroscopy (EIS) confirmed this interfacial effect, showing that the α-Fe<ce:inf loc=\"post\">2</ce:inf>O<ce:inf loc=\"post\">3</ce:inf> composite had a charge-transfer resistance of 1.05 × 10<ce:sup loc=\"post\">3</ce:sup> Ω, indicating the fastest reaction kinetics among the oxide composites. Furthermore, rotating ring-disk electrode (RRDE) studies demonstrated the catalyst’s selectivity, favoring the direct 4-electron pathway to water with minimal hydrogen peroxide production (&lt;10%) across the relevant potential range. The α-Fe<ce:inf loc=\"post\">2</ce:inf>O<ce:inf loc=\"post\">3</ce:inf> system also exhibited operational stability in acidic media, with negligible performance degradation after 100 h under chronoamperometric conditions. These findings highlight the potential of the α-Fe<ce:inf loc=\"post\">2</ce:inf>O<ce:inf loc=\"post\">3</ce:inf>-functionalized nanocomposite as a PGM-free cathode material for acidic ORR applications.","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"14 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2026-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148946802","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Thermal stability and high-temperature oxidation of HVAF-deposited IN718: Splat-influenced microstructural effects","authors":"V. Abhijith Vijay, M.P. Sreerag, C. Sundaresan, D Kalyan, Surendra Kumar Makineni, B. Rajasekaran","doi":"10.1016/j.apsusc.2026.168240","DOIUrl":"https://doi.org/10.1016/j.apsusc.2026.168240","url":null,"abstract":"The oxidation behaviour of non-equilibrium, heterogeneous microstructure in spray-deposited superalloys remain insufficiently understood. This study assesses the thermal stability and short-term high-temperature oxidation of thick IN718 deposit processed by high-velocity air fuel (HVAF) spraying. Emphasis was given to the chromia scale formation during oxidation, in relation to the process-induced heterogeneity of splat microstructure. The as-deposited IN718 microstructure exhibits dense splats with a refined cellular substructure and low-angle grain boundary coverage due to rapid solidification and severe plastic deformation. In-situ high temperature X-ray diffraction (HTXRD) revealed excellent thermal stability, low and controlled thermal expansion, and the formation of a stable Cr-rich (Cr,Fe)<ce:inf loc=\"post\">2</ce:inf>O<ce:inf loc=\"post\">3</ce:inf> above 600 <ce:sup loc=\"post\">o</ce:sup>C along with evolution of γ′′ and δ precipitates. Transmission Electron Microscopy (TEM-EDS) analysis confirms the development of thin (∼205 nm) continuous, and adherent Cr-rich protective oxide layer at the surface after 25h of air exposure at 700 <ce:sup loc=\"post\">o</ce:sup>C. Atom Probe Tomography (APT) revealed process-induced chemical heterogeneity and solute segregation at nanoscale. The inherent microstructure contributed to excellent thermal stability and created short-circuit pathways for chromium diffusion, promoting rapid formation of chromia scale with compositional heterogeneity. These findings provide new insights into the role of non-equilibrium microstructures in governing thermal stability and oxidation resistance in HVAF-deposited IN718.","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"59 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2026-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148946942","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Interfacial microstructure and mechanical properties of TiNbMoCrx coatings on Zr-4 alloy through laser cladding","authors":"Wei Guan, Jiahui Chen, Wei Feng, Dongze Chen, Yunhe Yu, Zhigang Chen, Jixin Hou, Zhixin Xia","doi":"10.1016/j.apsusc.2026.168359","DOIUrl":"https://doi.org/10.1016/j.apsusc.2026.168359","url":null,"abstract":"The Zr-Cr brittle intermetallic compounds usually form at the heterogeneous interface between zirconium alloy and conventional alloy coatings containing Cr element, which influence the mechanical properties. To solve the problem, this study designed and fabricated a novel TiNbMoCr<ce:inf loc=\"post\">x</ce:inf> (x = 0, 0.2, 0.4, 0.6) coatings on Zr-4 substrate by laser cladding. Through microstructure, mechanical properties, and deformation mechanisms investigation at the Zr/TiNbMoCr<ce:inf loc=\"post\">x</ce:inf> heterogeneous interface, the result revealed a transition zone composed of α-Zr, Zr-Nb solid solution, and Nb(Mo, Cr)<ce:inf loc=\"post\">2</ce:inf> Laves phase at the interface. Microhardness exhibits a continuous gradient transition from the TiNbMoCr<ce:inf loc=\"post\">x</ce:inf> layer to the Zr-4 substrate. The shear strength of the Zr/TiNbMoCr<ce:inf loc=\"post\">x</ce:inf> heterogeneous interface reached up to 263 MPa, achieving excellent combination between the substrate and coatings. The wear resistance and electrochemical properties significantly improved by TiNbMoCr<ce:inf loc=\"post\">x</ce:inf> coatings, among which the TiNbMoCr<ce:inf loc=\"post\">0.4</ce:inf> coating exhibited favorable trade-off between wear and corrosion <ce:inter-ref xlink:href=\"http://resistance.In\" xlink:type=\"simple\">resistance.In</ce:inter-ref>-situ EBSD test revealed deformation is initiated preferentially on the Zr-4 side near the interface, which serves as the primary site for interfacial cracks initiation. This study provided novel research insights and experimental evidence for the design of alloy coatings on zirconium alloy surface.","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"35 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2026-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148946803","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Glycol-assisted MoS2 nanosheets for Ir3+-O-Mo interface structure photothermal catalytic CO2 high selectively to CH4 and H2 generation by using H2O","authors":"Changcheng Xu, Qiyuan Wang, Qingzhu Xu","doi":"10.1016/j.apsusc.2026.168340","DOIUrl":"https://doi.org/10.1016/j.apsusc.2026.168340","url":null,"abstract":"Targeted modification of sulfur vacancy and lattice oxygen of MoS<ce:inf loc=\"post\">2</ce:inf> by metal atoms was an effective route to rational regulating active species for generating highly active catalyst. Herein, Iridium (Ir) atoms were utilized to modify two kinds of different MoS<ce:inf loc=\"post\">2</ce:inf> nanosheets respectively featured with sulfur vacancy rich and lattice oxygen doping. After modification, Ir atoms respectively anchored on the S atoms next to sulfur vacancy and lattice oxygen, forming edge Ir-S-Mo structure and interface Ir-O-Mo structure with Ir<ce:sup loc=\"post\">3+</ce:sup>. Importantly, X-ray absorption spectroscopy further confirmed the Ir-S-Mo and Ir-O-Mo structure via a distinct coordination environment of Ir single atom. The Ir/MoS<ce:inf loc=\"post\">2</ce:inf> and Ir/O-MoS<ce:inf loc=\"post\">2</ce:inf> sample were utilized to photothermal catalytic CO<ce:inf loc=\"post\">2</ce:inf> and H<ce:inf loc=\"post\">2</ce:inf>O reaction at 260 ℃, and kept increasing activity with reaction time to 6 h. Notably, the Ir/O-MoS<ce:inf loc=\"post\">2</ce:inf> sample exhibited highest CH<ce:inf loc=\"post\">4</ce:inf> yield up to 1.10 mmol g<ce:sup loc=\"post\">-1</ce:sup> h<ce:sup loc=\"post\">-1</ce:sup>, lowest C<ce:inf loc=\"post\">2</ce:inf>H<ce:inf loc=\"post\">4</ce:inf> yield of 0.008 mmol g<ce:sup loc=\"post\">-1</ce:sup> h<ce:sup loc=\"post\">-1</ce:sup> and highest H<ce:inf loc=\"post\">2</ce:inf> yield of 23.3 mmol g<ce:sup loc=\"post\">-1</ce:sup> h<ce:sup loc=\"post\">-1</ce:sup> under “light + heat” conditions, compared with not only itself under only illumination conditions, but also the catalytic activity of MoS<ce:inf loc=\"post\">2</ce:inf> and Ir/MoS<ce:inf loc=\"post\">2</ce:inf> samples. This work provided a promising new orientation of synchronizing the selectivity and activity for photothermal catalytic CO<ce:inf loc=\"post\">2</ce:inf> and H<ce:inf loc=\"post\">2</ce:inf>O reaction.","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"6 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2026-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148979868","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A trimetallic ZnCoZr@CN catalyst derived from spindle-shaped MOF for selective aerobic oxidation of benzoin to benzil","authors":"Shan Yan, Xinhuan Lu, Wang Zhang, Haotian Guo, Jia Huang, Zetao Li, Lin Zhao, Dan Zhou, Qinghua Xia","doi":"10.1016/j.apsusc.2026.168334","DOIUrl":"https://doi.org/10.1016/j.apsusc.2026.168334","url":null,"abstract":"The selective aerobic oxidation of benzoin to benzil is challenged by over-oxidation to benzaldehyde and benzoic acid. Herein, we report a trimetallic ZnCoZr@CN-500 catalyst derived from a spindle-shaped ZnCoZr-MOF precursor, synthesized via a static hydrothermal method using terephthalic acid and 2-methylimidazole as mixed ligands, followed by controlled pyrolysis under N<ce:inf loc=\"post\">2</ce:inf> at 500 °C. Comprehensive characterization (XRD, SEM, NH<ce:inf loc=\"post\">3</ce:inf>-TPD, N<ce:inf loc=\"post\">2</ce:inf> physisorption, XPS) reveals that the catalyst retains the basic morphology of the precursor and features abundant surface oxygen vacancies arising from intermetallic electron transfer among Zn, Co, and Zr. These vacancies, together with Zr-modulated surface acidity, effectively lower the reaction energy barrier. Under mild, additive-free conditions (60 °C, air as oxidant), the optimal catalyst achieves 97.6% conversion of benzoin and 96.7% selectivity to benzil, while the high oxygen solubility of DMF suppresses side reactions. Notably, the catalyst maintains its performance over five consecutive cycles without significant deactivation, and it also shows good activity for substituted benzoin derivatives (e.g., 3,3′-dimethoxy- and 3,3′-difluorobenzoin). This work not only provides a robust, non-noble metal catalyst for the green aerobic oxidation of benzoin but also offers a rational design strategy for MOF-derived nitrogen-doped carbon composites for selective oxidation reactions.","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"21 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2026-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148979869","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}