Surfaces and Interfaces最新文献_第7页

Biochar-supported sulfidated nanoscale zero-valent iron (S-nZVI@BC): Porous structures synergizing FeS for electron transfer to enhance hydrogen2 production and long-term stability from food waste dark fermentation 生物炭负载的硫化纳米级零价铁（S-nZVI@BC）：多孔结构协同FeS进行电子转移，以提高食物垃圾暗发酵的氢气产量和长期稳定性

IF 6.3 2区材料科学 Q2 CHEMISTRY, PHYSICAL

Surfaces and Interfaces

Pub Date : 2026-01-30 DOI: 10.1016/j.surfin.2026.108652

Shiyan Gu, Haiqiao Zhao, Ruoyu Kuang, Xiaoxia Li, Peng Gao, Huanhuan Wei, Xinyi Yu, Shuai Wang

Biochar-supported sulfidated nanoscale zero-valent iron (S-nZVI@BC) was synthesized via a one-step liquid-phase reduction method using corn stalk biochar to enhance hydrogen production from food waste dark fermentation. Compared to activated carbon (BET surface area 124 m²/g), corn stalk biochar possesses a hierarchical porous structure with a higher specific surface area (186 m²/g) and significantly greater content of surface hydroxyl and carboxyl groups. This structure serves as a core substrate for dispersing S-nZVI (particle size 50-80 nm) and constructing electron transfer pathways. It not only inhibited the agglomeration of S-nZVI (SEM observations showed a particle size of 50-80 nm for S-nZVI@BC, compared to 1-2 μm for pure S-nZVI) but also collaborated with the FeS layer (FTIR characteristic peak at 592 cm⁻¹) and oxygen-containing functional groups to establish highly efficient electron transfer channels, increasing the extracellular electron transfer rate by 91.7%. The maximum hydrogen yield of S-nZVI@BC reached 65.5±2.3 mL/g VS, which was 83.2% higher than the control group (35.7±1.8 mL/g VS, p<0.01), and it retained 84.4% of its hydrogen production activity after 60 days of aging, which was significantly higher than activated carbon-supported nZVI and physical mixtures (11.54% lower yield). High-throughput sequencing results indicated that S-nZVI@BC enriched for Firmicutes (relative abundance 90.97%) and Bathyarchaeia (relative abundance 30.89%), directing metabolism towards a butyrate-dominated pathway (butyrate accounting for 44%) and promoting the degradation of complex organics. This study elucidates the coupling mechanism of "biochar porous structure - FeS electron channel - microbial metabolism," providing a scalable strategy for the valorisation of organic waste.

以玉米秸秆生物炭为原料，通过一步液相还原法制备硫化纳米级零价铁（S-nZVI@BC），提高食物垃圾暗发酵产氢效率。与活性炭（BET表面积124 m²/g）相比，玉米秸秆生物炭具有分层多孔结构，比表面积更高（186 m²/g），表面羟基和羧基含量显著增加。该结构是分散S-nZVI（粒径50-80 nm）和构建电子转移途径的核心底物。它不仅抑制了S-nZVI的团聚（S-nZVI@BC的粒径为50-80 nm，而纯S-nZVI的粒径为1-2 μm），而且与FeS层（FTIR特征峰为592 cm⁻¹）和含氧官能团协同建立了高效的电子传递通道，使细胞外电子传递率提高了91.7%。S-nZVI@BC的最大产氢率达到65.5±2.3 mL/g VS，比对照组（35.7±1.8 mL/g VS, p<0.01）提高了83.2%，经过60 d的老化后仍保持84.4%的产氢活性，显著高于活性炭负载的nZVI和物理混合物（产氢率降低11.54%）。高通量测序结果表明，S-nZVI@BC富集于厚壁菌门（相对丰度90.97%）和深海菌门（相对丰度30.89%），将代谢导向以丁酸为主的途径（丁酸占44%），促进复杂有机物的降解。本研究阐明了“生物炭多孔结构- FeS电子通道-微生物代谢”的耦合机制，为有机废物的增值提供了可扩展的策略。

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引用次数: 0

Influence of chromium doping concentration on physical properties and electrochemical performance of iron (III) oxide (Fe2O3) thin films: An EIS and Mott-Schottky study 铬掺杂浓度对氧化铁（Fe2O3）薄膜物理性能和电化学性能的影响：EIS和Mott-Schottky研究

IF 6.3 2区材料科学 Q2 CHEMISTRY, PHYSICAL

Surfaces and Interfaces

Pub Date : 2026-01-29 DOI: 10.1016/j.surfin.2026.108642

Hussein A. Elsayed , Abdelhamid Albaid , Mansour Mohamed , Wael W. Mohammed , Ahmed Mehaney , H. M. Abd El-Salam , Ahmed A. Aboud

Chromium-doped iron(III) oxide (Cr–Fe₂O₃) thin films were deposited via spray pyrolysis at 420°C with chromium (Cr) contents of 1, 5, and 10 wt%. X-ray diffraction confirmed single-phase rhombohedral iron(III) oxide (Fe₂O₃), while FE-SEM revealed grain coarsening with Cr incorporation, verified as Cr³⁺ by EDX and XPS. In addition, the optical transmission analysis yielded film thicknesses of ∼535–600 nm and direct band gaps of 2.21 eV (1%, 5%) and 2.18 eV (10%), with Urbach energies indicating minimal disorder near 5 wt% Cr. Moreover, the electrochemical impedance spectroscopy (EIS) fitted with Rs–(R2∥CPE1)–(R3∥CPE2) showed an improved high-frequency transport with doping (Rs ≈ 40 → 11 Ω·cm²; R2 ≈ 1.9 × 10³ → 1.2 × 10² Ω·cm²), but anincreased low-frequency interfacial resistance of (R3 ≈ 7.3 × 10⁴ → 3.6 × 10⁶ Ω·cm²). Then, the Mott–Schottky analysis confirmed the n-type behavior with a donor density (N_D) ≈ 3.2–3.8 × 10¹⁸ cm^–3 and a conduction-band minimum (CBM) positively shifting from 1% to 5% Cr, partially relaxing at 10%. Overall, the moderate Cr incorporation enhances the bulk transport yet increases interfacial blocking behavior, revealing a trade-off that points to the intermediate doping as the optimal compromise.

采用喷雾热解法在420℃下制备了铬掺杂铁（III）氧化物（Cr - fe₂O₃）薄膜，铬（Cr）含量分别为1、5和10 wt%。x射线衍射证实为单相菱面体氧化铁（Fe2O3），而FE-SEM显示晶粒因Cr的掺入而变粗，EDX和XPS证实为Cr3+。此外，光透射分析得到薄膜厚度为~ 535 ~ 600 nm，直接带隙为2.21 eV（1%, 5%）和2.18 eV(10%)，乌尔巴赫能量在5 wt% Cr附近显示最小的无序。此外，Rs - (R2∥CPE1) - (R3∥CPE2)的电化学阻抗谱（EIS）显示掺杂后的高频输运改善(Rs≈40→11 Ω·cm2；R2≈1.9 × 103→1.2 × 102 Ω·cm2)，但增加了低频界面电阻（R3≈7.3 × 104→3.6 × 106 Ω·cm²）。然后，Mott-Schottky分析证实了n型行为，供体密度(ND)≈3.2-3.8 × 1018 cm-3，导带最小值（CBM）从1% Cr正向移动到5% Cr，在10% Cr部分松弛。总的来说，适度的Cr掺入增强了体输运，但增加了界面阻塞行为，揭示了一种权衡，指出中间掺杂是最佳的妥协。

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引用次数: 0

Na+-ion solid-state supercapacitors based on Prussian Blue Analogue structures 基于普鲁士蓝模拟结构的钠离子固态超级电容器

IF 6.3 2区材料科学 Q2 CHEMISTRY, PHYSICAL

Surfaces and Interfaces

Pub Date : 2026-01-29 DOI: 10.1016/j.surfin.2026.108646

Neha, Hardeep, Anshuman Dalvi

This work reports the synthesis and comprehensive electrochemical characterization of nickel hexacyanoferrate (Ni-HCF) structures, demonstrating their application as an electrode in solid-state Na⁺-ion-based supercapacitors featuring a NASICON (Na₃Zr₂Si₂PO₁₂)-reinforced composite solid polymer electrolyte (CSPE) membrane. X-ray photoelectron spectroscopy (XPS), Field Emission Scanning Electron Microscopy (FESEM), Energy Dispersive Spectroscopy (EDS), Transmission electron microscopy (TEM) and Brunauer-Emmett-Teller (BET) were used to confirm the formation of the Ni-HCF framework and to analyse the structural changes after extensive galvanostatic charge-discharge cycles. Electrochemical characterisation of the assembled solid-state supercapacitors demonstrates that such electrodes offer a low ESR (∼36 Ω cm²) and appreciably high specific capacitance (330 F g⁻¹ at 1 mA/1 V) when used with CSPE. The supercapacitor demonstrated excellent short-term stability, i.e., 90% retention over 100 cyclic voltametric cycles. Further long-term galvanostatic charge-discharge cycling showed 65% capacitance retention after 10,000 cycles. These findings suggest that hollow Ni-HCF structures have immense potential for use as high-capacity electrodes in liquid electrolyte-free capacitors. The architectural design of the electrodes and supercapacitors used in this work provides important insights for developing next-generation PBA-based electrodes compatible with solid polymer electrolytes, enabling safe and sustainable energy storage systems.

本文报道了六氰高铁酸镍（Ni-HCF）结构的合成和全面的电化学表征，展示了它们作为电极在具有NASICON （Na3Zr2Si2PO12）增强复合固体聚合物电解质（CSPE）膜的固态Na+离子基超级电容器中的应用。利用x射线光电子能谱（XPS）、场发射扫描电子显微镜（FESEM）、能量色散能谱（EDS）、透射电子能谱（TEM）和布鲁诺尔-埃米特-泰勒能谱（BET）证实了Ni-HCF骨架的形成，并分析了长时间的恒流充放电循环后结构的变化。组装的固态超级电容器的电化学表征表明，当与CSPE一起使用时，这种电极具有低ESR （~ 36 Ω cm2）和相当高的比电容（1ma / 1v时330 F g−1）。超级电容器表现出优异的短期稳定性，即在100个循环伏安循环中保持90%。进一步进行长期恒流充放电循环，10000次循环后电容保持率达到65%。这些发现表明，空心Ni-HCF结构在液体无电解质电容器中作为高容量电极具有巨大的潜力。这项工作中使用的电极和超级电容器的结构设计为开发与固体聚合物电解质兼容的下一代基于pba的电极提供了重要见解，从而实现了安全和可持续的能量存储系统。

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引用次数: 0

Bis(azine)-based benzils as a new class of anticorrosive agents for mild steel protection in 1.0 M HCl solution: Multi-step synthesis, electrochemical and DFT structural insights 在1.0 M盐酸溶液中保护低碳钢的新型双（嗪）基苯类防腐剂：多步合成、电化学和DFT结构研究

IF 6.3 2区材料科学 Q2 CHEMISTRY, PHYSICAL

Surfaces and Interfaces

Pub Date : 2026-01-29 DOI: 10.1016/j.surfin.2026.108638

Faisal Al-Odail , Mahmoud A. Bedair , Mohammed A. Alkhalifah , Ahmed M. Abuelela , Walid E. Elgammal , Essam M. Eliwa

This work presents a multi-step synthetic route of two bis(azine)-based benzils, abbreviated BAB and BAMB. IR, NMR, and EI-MS records were used to distinguish between the tautomeric forms. The synthesized compounds were evaluated as novel corrosion inhibitors for mild steel in corrosive 1.0 M HCl conditions. Electrochemical studies revealed that both inhibitors effectively slowed the corrosion, with BAMB showing an inhibition efficiency of 95.42% (PDP), 96.62% (EFM), and 96.16% (EIS), and BAMB showing 97.58%, 97.09%, and 97.05%, respectively. In addition, BAMB’ corrosion rate was slowed to 95.54 mpy, while for BAB was stayed at 180.4 mpy. Modeling Langmuir adsorption isotherm revealed monolayer adsorption, with BAMB has a greater adsorption equilibrium constant and a larger negative Gibbs free energy of adsorption compared to BAB, indicating enhanced and more spontaneous adsorption process on metallic surface. Atomic charge distribution was analyzed by DFT calculations using different approaches to elucidate the inhibitory mechanism at the molecular level. Both experimental and theoretical results showed that BAMB has superior corrosion inhibition.

本文介绍了两种双（氮）基苯基化合物（简称BAB和BAMB）的多步合成路线。IR， NMR和EI-MS记录被用来区分互变异构体形式。合成的化合物在1.0 M HCl腐蚀条件下作为新型的低碳钢缓蚀剂进行了评价。电化学研究表明，两种缓蚀剂均能有效减缓腐蚀，其中BAMB的缓蚀效率分别为95.42% （PDP）、96.62% （EFM）和96.16% (EIS)， BAMB的缓蚀效率分别为97.58%、97.09%和97.05%。此外，BAMB的腐蚀速率降至95.54 mpy，而BAB的腐蚀速率保持在180.4 mpy。模拟Langmuir吸附等温线显示为单层吸附，与BAB相比，BAMB具有更大的吸附平衡常数和更大的负吉布斯自由能，表明金属表面的吸附过程增强且更自发。利用DFT计算方法分析了原子电荷分布，从分子水平上阐明了抑制机制。实验和理论结果均表明，BAMB具有较好的缓蚀性能。

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引用次数: 0

Atomic scale temperature effects on material removal and subsurface damage in nano-polishing of 3C-SiC 原子尺度温度对3C-SiC纳米抛光材料去除和亚表面损伤的影响

IF 6.3 2区材料科学 Q2 CHEMISTRY, PHYSICAL

Surfaces and Interfaces

Pub Date : 2026-01-29 DOI: 10.1016/j.surfin.2026.108641

Huan Liu , Pengyue Zhao , Chao Long , Shuhao Kang , Ruihan Li , Ziteng Li

This work uses molecular dynamics to investigate the nano-polishing behavior of cubic silicon carbide (3C-SiC) crystals at varying temperatures. The analysis examines materials removal mechanisms, surface morphology evolution, atomic stress distribution and amorphous structure generation across different temperature settings. The findings indicate that temperature is a crucial factor in the polishing process, significantly affecting the subsurface damage layer thickness, the forces involved in nano-polishing, the coordination numbers of atoms, and the profiles of the radial distribution function. Specifically, the polishing depth and surface temperature distribution show distinct patterns depending on the temperature range, with notable variations in atomic displacement and stress distribution. Surface damage is minimized at temperatures below 200 K, and the crystal structure exhibits reduced damage at 200 K and 300 K. At 600 K, the formation of amorphous structures decreases, while polishing forces and stress distributions vary significantly with polishing distance. This work provides an in-depth atomic-scale understanding of the temperature-dependent material removal mechanisms and offers useful insights for improving surface and subsurface quality in ultra-precision machining of 3C-SiC.

本研究利用分子动力学方法研究了立方碳化硅（3C-SiC）晶体在不同温度下的纳米抛光行为。该分析考察了材料去除机制、表面形貌演变、原子应力分布和非晶结构在不同温度设置下的产生。结果表明，温度是影响抛光过程的关键因素，对亚表面损伤层厚度、纳米抛光力、原子配位数以及径向分布函数的分布有显著影响。在不同的温度范围内，抛光深度和表面温度分布呈现出不同的规律，原子位移和应力分布变化显著。当温度低于200 K时，表面损伤最小，而在200 K和300 K时，晶体结构表现出较小的损伤。在600 K时，非晶结构的形成减少，抛光力和应力分布随抛光距离的变化显著。这项工作提供了对温度依赖材料去除机制的深入的原子尺度理解，并为提高超精密加工3C-SiC的表面和亚表面质量提供了有用的见解。

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引用次数: 0

Aluminum stimulated efficient photocatalytic degradation of sulfamethoxazole based on layered BiOCl nanosheets 基于层状BiOCl纳米片的铝刺激高效光催化降解磺胺甲恶唑

IF 6.3 2区材料科学 Q2 CHEMISTRY, PHYSICAL

Surfaces and Interfaces

Pub Date : 2026-01-29 DOI: 10.1016/j.surfin.2026.108583

Zhen Han , Liang Ma , Yuhao Zhang

The extensive use of chemically stable and cost-effective antibiotics, such as sulfamethoxazole (SMX), has led to severe environmental pollution due to their persistence in water systems and biota, despite the widespread adoption of advanced oxidation processes (AOPs) and semiconductor photocatalysts. However, existing photocatalytic materials, including metal sulfides (like, CdS, ZnS), face critical challenges such as photocorrosion and narrow optical response ranges, while bismuth oxyhalides (BiOX) suffer from limited visible-light activity due to their wide bandgaps. To address these limitations, this study proposes a novel strategy of aluminum functionalization to optimize the electronic structure of layered BiOCl nanosheets. A one-pot synthesis method was employed to prepare Al-doped BiOCl (Al-BiOCl), which demonstrated significantly enhanced photocatalytic performance for SMX degradation. Experimental results revealed that Al-BiOCl achieved a degradation efficiency of 98.2% (vs. 76% for pristine BiOCl) under visible light, with an apparent rate constant (k_obs) 1.67-fold higher than that of undoped BiOCl. Radical quenching experiments identified photogenerated holes (h⁺) and superoxide radicals (·O₂^-) as the dominant active species, highlighting the efficient utilization of photogenerated excitons. Notably, Al-BiOCl retained 75.2% degradation efficiency after five consecutive cycles in real water matrices (tap water, surface water, and sewage effluent), confirming its robust stability. These findings establish Al-BiOCl as a promising photocatalyst for antibiotic pollution remediation, offering both technical solutions to environmental contamination and fundamental insights into the role of aluminum doping in enhancing semiconductor photocatalysis through optimized charge carrier separation and bandgap modulation.

尽管广泛采用了高级氧化工艺（AOPs）和半导体光催化剂，但化学稳定且具有成本效益的抗生素（如磺胺甲恶唑（SMX））的广泛使用，由于其在水系统和生物群中的持久性，导致了严重的环境污染。然而，现有的光催化材料，包括金属硫化物（如CdS， ZnS），面临着诸如光腐蚀和狭窄的光学响应范围等严峻挑战，而氧化卤化铋（BiOX）由于其宽带隙而受到可见光活性的限制。为了解决这些限制，本研究提出了一种新的铝功能化策略来优化层状BiOCl纳米片的电子结构。采用一锅法制备了掺杂al的BiOCl (Al-BiOCl)，该材料对SMX的光催化性能得到了显著提高。实验结果表明，Al-BiOCl在可见光下的降解效率为98.2%（原始BiOCl为76%），表观速率常数（kobs）比未掺杂的BiOCl高1.67倍。自由基猝灭实验发现光生空穴（h +）和超氧自由基（·O₂-）是优势活性物质，突出了光生激子的高效利用。值得注意的是，Al-BiOCl在实际水基质（自来水、地表水和污水）中连续5次循环后仍保持75.2%的降解效率，证实了其强大的稳定性。这些发现表明Al-BiOCl是一种很有前景的抗生素污染修复光催化剂，既提供了环境污染的技术解决方案，也为铝掺杂通过优化载流子分离和带隙调制来增强半导体光催化的作用提供了基本见解。

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引用次数: 0

Surface modification of silver nanoparticles with self-assembled monolayers to mitigate electrochemical migration in fine-pitch interconnects 用自组装单层膜对银纳米粒子表面进行改性以减轻细间距互连中的电化学迁移

IF 6.3 2区材料科学 Q2 CHEMISTRY, PHYSICAL

Surfaces and Interfaces

Pub Date : 2026-01-29 DOI: 10.1016/j.surfin.2026.108640

Chia-Hung Tsou, Wan-Hsuan Lin, Chien-Cheng Chiang, Fan-Yi Ouyang

This paper presents a surface modification method for silver (Ag) nanoparticles using self-assembled monolayers (SAMs) to mitigate electrochemical migration (ECM) in fine-pitch Ag interconnects under humid and biased conditions for electronic devices. SAMs are formed by immersing the samples in a 10 mM ethanolic solution of 1-dodecanethiol for varying durations. The SAM layers show good chemical stability after room-temperature storage for 72 h and under continuous electrical bias of 3 V for 1 h. In addition, the SAM-treated samples demonstrate a 3 to 5-fold improvement in ECM resistance compared to untreated counterparts, with the best performance observed after 18 hours of immersion. Surface analysis confirm the formation of Ag-SR bonding in chelating complexes on the Ag surface after SAM treatment. The neutral charge of the Ag-SR complex reduces its susceptibility to electric field in the aqueous environment, thereby lowering Ag solubility and increasing migration activation energy, which in turn enhances the ECM resistance of the SAM-treated samples. This approach offers a simple, low-cost, and scalable strategy for improving the reliability of printed metal interconnects in moisture-prone environments.

本文提出了一种利用自组装单层（SAMs）对银（Ag）纳米粒子进行表面改性的方法，以减轻电子器件在潮湿和偏置条件下细间距银互连中的电化学迁移（ECM）。通过将样品浸泡在10mm的1-十二烷基硫醇乙醇溶液中不同时间形成sam。在室温储存72小时和连续3 V偏置1小时后，SAM层表现出良好的化学稳定性。此外，与未处理的样品相比，经过SAM处理的样品的ECM抗性提高了3到5倍，浸泡18小时后表现出最佳性能。表面分析证实，经过SAM处理后，Ag表面的螯合物中形成了Ag- sr键。Ag- sr配合物的中性电荷降低了其在水环境中对电场的敏感性，从而降低了Ag的溶解度，增加了迁移活化能，从而增强了经过sam处理的样品的抗ECM能力。这种方法为提高易受潮环境中印刷金属互连的可靠性提供了一种简单、低成本和可扩展的策略。

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引用次数: 0

Decarbonization via polyethersulfone-based composite membranes containing bimetallic Zn-Co nanoferrites 含双金属Zn-Co纳米铁氧体的聚醚砜基复合膜脱碳

IF 6.3 2区材料科学 Q2 CHEMISTRY, PHYSICAL

Surfaces and Interfaces

Pub Date : 2026-01-28 DOI: 10.1016/j.surfin.2026.108628

Muneerah Alomar , Kiran Shahzadi , Afraa Alotaibi , Muhammad Sarfraz

For post-combustion CO₂ capture, nanomaterials-doped polymer-based composite membranes are a viable option. In this study, Zn-Co nanoferrite (Zn_1-ₓCoₓFe₂O₄) nanoparticles were added to polyethersulfone (PES)-based composite membranes using phase inversion and solution casting techniques to improve gas separation performance. Membrane structure, porosity, mechanical strength and CO₂ separation efficiency were thoroughly examined in relation to nanoferrites annealing. CO₂ permeability increased from 25 Barrer (pristine PES) to 67 Barrer with addition of 10 weight percent annealed Zn-Co nanoferrites, whereas CO₂/N₂ selectivity remained at 23. Optical microscopy showed uniform nanoparticle dispersion with little aggregation, while structural analysis verified development of spinel-type Zn-Co ferrites with crystallite diameters of 29-45 nm. Higher gas permeation and stable separation performance resulted from improved mechanical robustness, pore homogeneity and improved interfacial compatibility between annealed ferrites and PES matrix. These findings show that designed PES/Zn-Co nanoferrite membranes have great promise for decarbonizing flue gases in an energy-efficient manner.

对于燃烧后的二氧化碳捕获，掺杂纳米材料的聚合物基复合膜是一种可行的选择。本研究将纳米Zn-Co铁素体（Zn1-ₓCoₓFe₂O₄）纳米颗粒通过相转化和溶液铸造技术添加到聚醚砜（PES）基复合膜中，以提高气体分离性能。研究了纳米铁素体退火对膜结构、孔隙率、机械强度和CO2分离效率的影响。加入10%的Zn-Co纳米铁氧体后，CO2渗透率从25 Barrer（原始PES）增加到67 Barrer，而CO2/N2选择性保持在23 Barrer。光学显微镜观察到纳米颗粒分散均匀，聚集较少，结构分析证实了尖晶石型Zn-Co铁氧体的发育，晶粒直径为29-45 nm。退火铁氧体与PES基体之间的力学稳定性、孔隙均匀性和界面相容性得到改善，从而提高了气体渗透率和稳定的分离性能。这些发现表明，设计的PES/Zn-Co纳米铁氧体膜在高效脱碳烟气方面具有很大的前景。

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引用次数: 0

Corrosion inhibition performance of three imidazole derivatives in acidic etching solutions to fabricate copper lines of printed circuit boards 三种咪唑衍生物在酸性蚀刻溶液中对印制电路板铜线的缓蚀性能

IF 6.3 2区材料科学 Q2 CHEMISTRY, PHYSICAL

Surfaces and Interfaces

Pub Date : 2026-01-28 DOI: 10.1016/j.surfin.2026.108630

Xue Yang , Miao Yu , Tao Hang , Wenjing Chen , Xianming Chen , Mingji Zhou , Chunqin Yang , Jianjun Zhang , Houwen Liu , Zongyi Ma , Min Zhu , Yuanming Chen

Corrosion inhibition performance of three imidazole derivatives, including 1,1′-sulfonyldiimidazole (SDI), 1,4-bis[(1H-imidazol-1-yl)methyl]benzene (BIMB), and 1,1′-carbonyldiimidazole (CDI), was investigated for copper corrosion in acidic etching solutions with 10 mmol L⁻¹ above corrosion inhibitors at 25 °C. Quantum chemical calculations and molecular dynamics simulations were performed to elucidate their adsorption behavior of the inhibitors on copper surfaces, and electrochemical measurements were used to evaluate their adsorption mechanisms. Furthermore, surface morphology characterization and etch factor analysis were conducted to assess the microstructural changes and etching efficiency of copper. Among the three inhibitors, CDI exhibited the best corrosion inhibition performance. Electrochemical testing results revealed that cathodic suppression dominated the corrosion inhibition of three inhibitors on copper: SDI and BIMB had the inhibition efficiency of <50%, whereas CDI had the highest charge transfer resistance for the inhibition efficiency of 72.01%. In the presence of CDI, the copper lines with line width/line spacing of 60 μm/60 μm and 30 μm/30 μm respectively achieved an etching factor of 16.55 and 13.24, outperforming BIMB and SDI. This work provides theoretical and experimental insights into the design of high-performance imidazole-based corrosion inhibitors for copper etching to fabricate copper lines of printed circuit boards.

研究了3种咪唑衍生物（1,1′-磺酰二咪唑（SDI）、1,4-双[（1h -咪唑-1-酰基）甲基]苯（BIMB）和1,1′-羰基二咪唑（CDI））在酸性蚀刻液中对铜的缓蚀性能。通过量子化学计算和分子动力学模拟来阐明抑制剂在铜表面的吸附行为，并通过电化学测量来评价其吸附机理。此外，通过表面形貌表征和蚀刻因素分析来评估铜的微观结构变化和蚀刻效率。在3种缓蚀剂中，CDI的缓蚀性能最好。电化学测试结果表明，3种缓蚀剂对铜的缓蚀作用以阴极抑制为主，SDI和BIMB的缓蚀效率为50%，而CDI的电荷转移电阻最高，缓蚀效率为72.01%。在CDI存在下，线宽/线距分别为60 μm/60 μm和30 μm/30 μm的铜线的蚀刻系数分别为16.55和13.24，优于BIMB和SDI。这项工作为设计高性能咪唑基缓蚀剂用于铜蚀刻以制造印刷电路板的铜线提供了理论和实验见解。

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引用次数: 0

Preparation and corrosion behavior of MgAl-LDH layers on magnesium compacts prepared by powder metallurgy 粉末冶金镁合金致密体上MgAl-LDH层的制备及其腐蚀行为

IF 6.3 2区材料科学 Q2 CHEMISTRY, PHYSICAL

Surfaces and Interfaces

Pub Date : 2026-01-28 DOI: 10.1016/j.surfin.2026.108617

Martin Buchtík , Matěj Březina , Jiří Másilko , Daniel Kajánek , Ivo Kuběna , Stanislava Fintová , Leoš Doskočil

Magnesium materials were classified as biodegradable materials. However, their poor corrosion resistance hinders their widespread use. To increase corrosion resistance, LDH layers can be applied to their surface. In this work, MgAl-LDH layers were produced for the first time on Mg compact prepared by powder metallurgy. The preparation of LDH layers was performed by one-step in situ deposition under optimal conditions for 9 h at 95 °C. The higher deposition time led to a significant increase in the Mg(OH)₂ content in the Mg compact and to the occurrence of structural defects. The MgAl-LDH layer had a positive effect on the corrosion properties of Mg compacts in Hank's solution. The corrosion behavior differed in some aspects from conventional Mg materials. The corrosion induced the formation of hydroxyapatite, which initially formed on the LDH layer and improved the corrosion resistance. After the LDH layer was broken, the structural nature of Mg compacts led to intense degradation, which limited the protective effect of corrosion products. Coating thus appears to be a viable and suitable strategy for improving the corrosion properties of Mg materials prepared by powder metallurgy.

镁材料被归类为可生物降解材料。然而，它们的耐腐蚀性差阻碍了它们的广泛使用。为了提高耐腐蚀性，可以在其表面施加LDH层。本文首次在粉末冶金法制备的镁合金致密体上制备了MgAl-LDH层。在95°C的最佳条件下，一步原位沉积9h，制备LDH层。随着沉积时间的延长，镁合金中Mg(OH)2含量显著增加，导致结构缺陷的发生。MgAl-LDH层对Mg合金在Hank’s溶液中的腐蚀性能有积极的影响。其腐蚀行为与常规镁材料在某些方面存在差异。腐蚀诱导羟基磷灰石的形成，羟基磷灰石最初形成在LDH层上，提高了材料的耐蚀性。在LDH层被破坏后，Mg致密体的结构性质导致了强烈的降解，这限制了腐蚀产物的保护作用。因此，涂层是改善粉末冶金制备的镁材料腐蚀性能的可行和合适的策略。

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