Advanced Materials Interfaces最新文献_第9页

Turning Humidity Into Function: Heterojunction Interfaces for Dual-Mode Removal of Nonpolar Vapors 将湿度转化为功能：用于双模式去除非极性蒸汽的异质结界面

IF 4.5 3区材料科学

Advanced Materials Interfaces Pub Date : 2026-08-04 Epub Date: 2026-07-09 DOI: 10.1002/admi.70594

Jinwook Lee, Jooyoun Kim

{"title":"Turning Humidity Into Function: Heterojunction Interfaces for Dual-Mode Removal of Nonpolar Vapors","authors":"Jinwook Lee, Jooyoun Kim","doi":"10.1002/admi.70594","DOIUrl":"https://doi.org/10.1002/admi.70594","url":null,"abstract":"A core–shell heterojunction photocatalyst, MIL–88B(Fe)@Fe3(PO4)2, is directly synthesized on an oxidized iron wire that serves as both an iron source and a structural scaffold. The resulting wire-grown hetero-catalytic adsorbent (MIL@FeP@wire) exhibits efficient generation of superoxide (•O2−) and hydroxyl (•OH) radicals under light irradiation. Its gas-phase removal performance is evaluated using cyclohexane (C6H12) as a representative nonpolar volatile organic compound (VOC). MIL@FeP@wire demonstrates combined dual-mode cyclohexane removal across 10%–90% relative humidity (RH), whereas single-component materials display an adsorption- or catalysis-dominated behavior. Notably, this work elucidates how ambient humidity mediates VOC-adsorbent interactions by distinctly regulating adsorption and photocatalytic degradation pathways. Dynamic vapor sorption and hydrophobic interaction chromatography show that water vapor forms a hydration layer on MIL@FeP@wire, enhancing interfacial affinity for nonpolar cyclohexane and promoting adsorption. Concurrently, electron spin resonance confirms humidity-enhanced •OH generation, which accelerates photocatalytic oxidation. This pathway-resolved analysis, which distinguishes adsorption and photodegradation contributions, identifies water vapor as a functional mediator that regulates adsorption and catalytic degradation through hydration-induced interfacial effects in air purification.","PeriodicalId":115,"journal":{"name":"Advanced Materials Interfaces","volume":"13 15","pages":""},"PeriodicalIF":4.5,"publicationDate":"2026-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/admi.70594","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148667374","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Neutron Reflectometry and Compression of Graded Hydrogel Surfaces 梯度水凝胶表面的中子反射和压缩

IF 4.5 3区材料科学

Advanced Materials Interfaces Pub Date : 2026-08-04 Epub Date: 2026-07-06 DOI: 10.1002/admi.70580

Kathryn E. Shaffer, Alex Q. Zhang, Mehdi Karimi, Ahmed Al Kindi, Linnaea D. Uliassi, Nemea S. Courelli, Julia J. Ong, Conor D. Pugsley, Andrew R. Rhode, Erik B. Watkins, Rebecca J.L. Welbourn, Alexander Alexeev, Angela A. Pitenis

{"title":"Neutron Reflectometry and Compression of Graded Hydrogel Surfaces","authors":"Kathryn E. Shaffer, Alex Q. Zhang, Mehdi Karimi, Ahmed Al Kindi, Linnaea D. Uliassi, Nemea S. Courelli, Julia J. Ong, Conor D. Pugsley, Andrew R. Rhode, Erik B. Watkins, Rebecca J.L. Welbourn, Alexander Alexeev, Angela A. Pitenis","doi":"10.1002/admi.70580","DOIUrl":"https://doi.org/10.1002/admi.70580","url":null,"abstract":"Polyacrylamide hydrogels with depth-wise gradients in polymer density (i.e., surface gel layers) are ideal synthetic models to understand stress modulation in hierarchical, compositionally-graded biological tissues, including articular cartilage, in part, due to their similarities in water content and network structure. This work investigated surface gel layer thickness and crosslinker mobility (e.g., covalent crosslinks vs. physical entanglements) in polyacrylamide hydrogels and their impact on mechanical properties via confocal microscopy, indentation and compression measurements, neutron reflectivity, and mesoscale modeling. Hydrogels polymerized against oxygen-permeable polydimethylsiloxane exhibited thicker surface gel layers and significantly lower elastic modulus compared to hydrogels polymerized against oxygen-impermeable glass. Physical entanglements lowered the hydrogel elastic modulus within the surface gel layer and throughout the bulk. Neutron reflectivity revealed the collapse of near-surface polymer networks under compressive loads, in good agreement with dissipative particle dynamics (DPD) simulations. Our results suggested that both the hydrogel elastic modulus and crosslinker mobility set the load required to collapse the polymer network. Furthermore, the collapse of thicker surface gel layers resulted in lower polymer network density than thinner surface gel layers. This work points to polymer density and crosslinker mobility as key design parameters in the design of stress-modulating and tissue-like materials.","PeriodicalId":115,"journal":{"name":"Advanced Materials Interfaces","volume":"13 15","pages":""},"PeriodicalIF":4.5,"publicationDate":"2026-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/admi.70580","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148667261","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Influence of Carbon Nanoparticles on Electrically Induced Wear of Grease-Lubricated Steels (Adv. Mater. Interfaces 15/2026) 纳米碳对油脂润滑钢电致磨损的影响。接口15/2026)

IF 4.5 3区材料科学

Advanced Materials Interfaces Pub Date : 2026-08-04 DOI: 10.1002/admi.70540

Mohammad Humaun Kabir, Darrius Dias, Jacob Bons, MD Wasek Foysal, Evan Johnson, Joe Kosmoski, Hong Liang

引用次数: 0

Developing a Functional Polyelectrolyte Hybrid Layer Scaffold Coating and Evaluation of Its Performance for Interaction With Neural Cells 功能聚电解质杂化层支架涂层的研制及其与神经细胞相互作用性能评价

IF 4.5 3区材料科学

Advanced Materials Interfaces Pub Date : 2026-08-04 Epub Date: 2026-06-08 DOI: 10.1002/admi.70565

Anna Grzeczkowicz, Agata Lipko, Angelika Kwiatkowska, Marcin Strawski, Monika Drabik, Ludomira H. Granicka

{"title":"Developing a Functional Polyelectrolyte Hybrid Layer Scaffold Coating and Evaluation of Its Performance for Interaction With Neural Cells","authors":"Anna Grzeczkowicz, Agata Lipko, Angelika Kwiatkowska, Marcin Strawski, Monika Drabik, Ludomira H. Granicka","doi":"10.1002/admi.70565","DOIUrl":"https://doi.org/10.1002/admi.70565","url":null,"abstract":"In this study, polyelectrolyte-based layer coatings modified with copper (CuNPs) and iron(II, III) oxide nanoparticles (Fe3O4NPs) are developed to enhance physicochemical properties and assess cell–material interactions. The effects of varying nanoparticle concentrations are evaluated in vitro using the murine neural stem cell line NE-4C. Cell morphology on nanocomposite surfaces is examined by scanning electron microscopy (SEM), while fluorescence imaging and mitochondrial activity assays are conducted to evaluate cellular function. Mitochondrial activity results demonstrate that higher Fe3O4NP content enhanced metabolic activity of NE-4C cells in both poly-L-lysine (PLL)- and polyethylenimine (PEI)-based coatings. Fluorescence microscopy confirms the presence of both astrocytes and neurons on all scaffolds; however, it was observed that Fe3O4NP-containing materials promote a higher proportion of neurons relative to CuNP-modified coatings. Overall, the incorporation of metallic nanoparticles significantly influenced neural cell morphology and function. These findings indicate that controlled nanoparticle integration within polyelectrolyte coatings can tailor the interfacial microenvironment that interacts with neural cells, highlighting their potential for neural tissue engineering applications.","PeriodicalId":115,"journal":{"name":"Advanced Materials Interfaces","volume":"13 15","pages":""},"PeriodicalIF":4.5,"publicationDate":"2026-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/admi.70565","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148667185","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Influence of Carbon Nanoparticles on Electrically Induced Wear of Grease-Lubricated Steels 纳米碳对油脂润滑钢电致磨损的影响

IF 4.5 3区材料科学

Advanced Materials Interfaces Pub Date : 2026-08-04 Epub Date: 2026-05-02 DOI: 10.1002/admi.70520

Mohammad Humaun Kabir, Darrius Dias, Jacob Bons, MD Wasek Foysal, Evan Johnson, Joe Kosmoski, Hong Liang

{"title":"Influence of Carbon Nanoparticles on Electrically Induced Wear of Grease-Lubricated Steels","authors":"Mohammad Humaun Kabir, Darrius Dias, Jacob Bons, MD Wasek Foysal, Evan Johnson, Joe Kosmoski, Hong Liang","doi":"10.1002/admi.70520","DOIUrl":"https://doi.org/10.1002/admi.70520","url":null,"abstract":"Under electrified conditions, the interfacial parameters that govern wear under electrical loading, and the way electrical and mechanical effects remain insufficiently understood. In this study, the electro-tribological behavior of lithium-, calcium-, and aluminum-based greases was systematically investigated under non-electrified and electrified sliding conditions, with a particular focus on the role of carbon nanoparticles (CNPs) as functional additives. Rheological, adhesion, electrical, friction, and wear measurements were combined with surface characterization to elucidate the governing mechanisms. Under electrified conditions, base greases exhibited pronounced friction instability, elevated wear rates, and severe surface damage. In contrast, CNP-modified greases demonstrated substantially improved performance, with up to ∼45% reduction in wear and significantly stabilized friction behavior. Electrical analyses revealed that while CNPs reduce the bulk electrical impedance of the grease matrix, they increase the contact resistance during sliding, indicating enhanced interfacial electrical separation. Regression analysis demonstrated that wear under electrified conditions is primarily governed by the electrical impedance of the grease system, with CNPs playing a central role in regulating charge transport and interfacial electrical stability. These findings establish an electro-mechanical framework linking CNP-enabled impedance regulation.","PeriodicalId":115,"journal":{"name":"Advanced Materials Interfaces","volume":"13 15","pages":""},"PeriodicalIF":4.5,"publicationDate":"2026-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/admi.70520","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148667210","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Operando X-Ray Absorption Spectroscopy Reveals Dynamic Interfacial Metal–Metal Coordination Governing CO2 Reduction Selectivity in PdAg Alloys Operando x射线吸收光谱揭示PdAg合金中动态界面金属-金属配位控制CO2还原选择性

IF 4.5 3区材料科学

Advanced Materials Interfaces Pub Date : 2026-08-04 Epub Date: 2026-06-29 DOI: 10.1002/admi.70582

Ruspika Sundaresan, Pandiyarajan Anand, Li-Ling Lin, Naveen Karuppusamy, Hsu-Feng Lee, Shin-Yu Chang, Tsu-Hao Chang, Yu-Cheng Shao, Ching-Wei Tung

{"title":"Operando X-Ray Absorption Spectroscopy Reveals Dynamic Interfacial Metal–Metal Coordination Governing CO2 Reduction Selectivity in PdAg Alloys","authors":"Ruspika Sundaresan, Pandiyarajan Anand, Li-Ling Lin, Naveen Karuppusamy, Hsu-Feng Lee, Shin-Yu Chang, Tsu-Hao Chang, Yu-Cheng Shao, Ching-Wei Tung","doi":"10.1002/admi.70582","DOIUrl":"https://doi.org/10.1002/admi.70582","url":null,"abstract":"Achieving high selectivity towards single carbon products in electrochemical CO2 reduction requires precise control over intermediate binding energies, a challenge that monometallic catalysts cannot address due to inherent electronic structure limitations. Bimetallic catalyst offers a strategic solution through synergetic electronic effects that decouple these correlations, enabling independent optimization of CO2 activation and CO desorption, critical steps for selective single-carbon production. Herein, we demonstrate a PdxAg1-x electrocatalyst system that achieved a CO selectivity of 91% at −1.1 V versus RHE with an optimized composition. Operando X-ray absorption spectroscopy reveals that Ag as the active site, undergoes partial oxidation to Ag+ under reaction conditions, donating electron density to Pd sites, while EXAFS analysis establishes composition–dependent metal–metal (M–M) bonding as the critical selectivity determinant. These findings provide a quantitative design framework for rational composition engineering of next-generation bimetallic CO2 reduction catalysts based on active site coordination dynamics.","PeriodicalId":115,"journal":{"name":"Advanced Materials Interfaces","volume":"13 15","pages":""},"PeriodicalIF":4.5,"publicationDate":"2026-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/admi.70582","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148667503","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Developing a Functional Polyelectrolyte Hybrid Layer Scaffold Coating and Evaluation of Its Performance for Interaction With Neural Cells 功能聚电解质杂化层支架涂层的研制及其与神经细胞相互作用性能评价

IF 4.5 3区材料科学

Advanced Materials Interfaces Pub Date : 2026-08-04 Epub Date: 2026-06-08 DOI: 10.1002/admi.70565

Anna Grzeczkowicz, Agata Lipko, Angelika Kwiatkowska, Marcin Strawski, Monika Drabik, Ludomira H. Granicka

{"title":"Developing a Functional Polyelectrolyte Hybrid Layer Scaffold Coating and Evaluation of Its Performance for Interaction With Neural Cells","authors":"Anna Grzeczkowicz, Agata Lipko, Angelika Kwiatkowska, Marcin Strawski, Monika Drabik, Ludomira H. Granicka","doi":"10.1002/admi.70565","DOIUrl":"https://doi.org/10.1002/admi.70565","url":null,"abstract":"In this study, polyelectrolyte-based layer coatings modified with copper (CuNPs) and iron(II, III) oxide nanoparticles (Fe3O4NPs) are developed to enhance physicochemical properties and assess cell–material interactions. The effects of varying nanoparticle concentrations are evaluated in vitro using the murine neural stem cell line NE-4C. Cell morphology on nanocomposite surfaces is examined by scanning electron microscopy (SEM), while fluorescence imaging and mitochondrial activity assays are conducted to evaluate cellular function. Mitochondrial activity results demonstrate that higher Fe3O4NP content enhanced metabolic activity of NE-4C cells in both poly-L-lysine (PLL)- and polyethylenimine (PEI)-based coatings. Fluorescence microscopy confirms the presence of both astrocytes and neurons on all scaffolds; however, it was observed that Fe3O4NP-containing materials promote a higher proportion of neurons relative to CuNP-modified coatings. Overall, the incorporation of metallic nanoparticles significantly influenced neural cell morphology and function. These findings indicate that controlled nanoparticle integration within polyelectrolyte coatings can tailor the interfacial microenvironment that interacts with neural cells, highlighting their potential for neural tissue engineering applications.","PeriodicalId":115,"journal":{"name":"Advanced Materials Interfaces","volume":"13 15","pages":""},"PeriodicalIF":4.5,"publicationDate":"2026-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/admi.70565","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148667186","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Hybrid Computational Framework for PCF-based SPR Sensor With Machine Learning and xAI 基于pcf的SPR传感器混合计算框架与机器学习

IF 4.5 3区材料科学

Advanced Materials Interfaces Pub Date : 2026-08-04 Epub Date: 2026-07-08 DOI: 10.1002/admi.70593

Mahabur Rahman Fahim, Sudeep Paul, Musrat Jahan, Md Abu Shahid Chowdhury

{"title":"A Hybrid Computational Framework for PCF-based SPR Sensor With Machine Learning and xAI","authors":"Mahabur Rahman Fahim, Sudeep Paul, Musrat Jahan, Md Abu Shahid Chowdhury","doi":"10.1002/admi.70593","DOIUrl":"https://doi.org/10.1002/admi.70593","url":null,"abstract":"Photonics crystal fiber (PCF)-based sensors employing surface plasmon resonance (SPR) have become a highly effective tools for detecting molecular interactions without using any labels. This study introduces highly sensitive PCF-based SPR sensor, utilizing rectangular air holes with traditional circular air holes, which achieves an impressive wavelength sensitivity of 15000 nm/RIU and an amplitude sensitivity of 1025.02 RIU−1, spanning a broad refractive index (RI) range from 1.31 to 1.39. The proposed sensor was assessed by numerical analysis, utilizing the finite element method along with a perfectly matched layer. Furthermore, this research employs machine learning (ML), specifically random forest regressor (RFR), gradient boosting regressor (GBR), and categorical boosting regressor (CatBR), to predict confinement loss and sensitivity, marking a notable progression in reducing computational time (0.002 sec). An explainable AI (xAI) method is further applied to understand the dependency of the sensor parameters. These algorithms provide adaptive learning capabilities and meaningful data-driven interpretation, resulting in an impressive R2 value of 0.98, confirming their effectiveness in forecasting sensor performance. This integration of SPR, PCF, and ML not only enhances sensor optimization but also presents a rapid, efficient framework for performance estimation, emphasizing the significant potential of ML in the advancement of optical sensor development.","PeriodicalId":115,"journal":{"name":"Advanced Materials Interfaces","volume":"13 15","pages":""},"PeriodicalIF":4.5,"publicationDate":"2026-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/admi.70593","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148667268","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

An Ultra-Reliable and Highly Sensitive Flexible Piezoelectric Pressure Sensor Based on Vertically Aligned Gallium Nitride Microrod Arrays on Graphene 基于石墨烯上垂直排列氮化镓微棒阵列的超可靠、高灵敏度柔性压电压力传感器

IF 4.5 3区材料科学

Advanced Materials Interfaces Pub Date : 2026-08-04 Epub Date: 2026-07-08 DOI: 10.1002/admi.70590

Asad Ali, Han Ik Kim, Seokje Lee, Imhwan Kim, Hongseok Oh, Gyu-Chul Yi

{"title":"An Ultra-Reliable and Highly Sensitive Flexible Piezoelectric Pressure Sensor Based on Vertically Aligned Gallium Nitride Microrod Arrays on Graphene","authors":"Asad Ali, Han Ik Kim, Seokje Lee, Imhwan Kim, Hongseok Oh, Gyu-Chul Yi","doi":"10.1002/admi.70590","DOIUrl":"https://doi.org/10.1002/admi.70590","url":null,"abstract":"We report a robust and flexible piezoelectric pressure sensor based on gallium nitride (GaN) p–n homojunction microrod arrays on graphene. The microrods were synthesized via a two-step metal-organic chemical vapor deposition (MOCVD) process. First, catalyst-free MOCVD was used to grow position-controlled zinc oxide (ZnO) nanotubes on graphene. Subsequently, n- and p-type GaN layers were conformally coated on ZnO nanotubes to obtain coaxial GaN p-n homojunction microrods. FESEM confirmed position-controlled microrod arrays, while X-ray Diffraction (XRD) revealed their preferential c-axis orientation. To fabricate the device, the gaps between the microrods were filled with a polyimide layer, followed by the mechanical release of the microrods from the SiO2/Si substrate, enabled by the weak van der Waals interface between the graphene and the substrate. The vertical device structure was completed by depositing an ohmic metal contact at the microrods tip, yielding a flexible piezoelectric pressure sensor. The pressure response of the sensor was evaluated by applying pressure using argon gas, demonstrating stable, rapid, and highly sensitive pressure responses. Long-term sensor performance was quantitatively assessed, yielding consistent pressure responses after repeated thermal cycling and immersion in phosphate-buffered saline, demonstrating the device's potential for operation in harsh environments, including in vivo biomedical applications.","PeriodicalId":115,"journal":{"name":"Advanced Materials Interfaces","volume":"13 15","pages":""},"PeriodicalIF":4.5,"publicationDate":"2026-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/admi.70590","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148667226","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Gas-Selective Remote Plasma Engineering of WO3 Photoanodes for Solar Water Splitting 用于太阳能水分解的WO3光阳极气选远程等离子体工程

IF 4.5 3区材料科学

Advanced Materials Interfaces Pub Date : 2026-07-21 Epub Date: 2026-06-12 DOI: 10.1002/admi.70572

Elham Jassemi Zargani, Amar K. Salih, Salma M. Ali, Hongjun Chen, Antonio Tricoli, Cuong Ton-That

{"title":"Gas-Selective Remote Plasma Engineering of WO3 Photoanodes for Solar Water Splitting","authors":"Elham Jassemi Zargani, Amar K. Salih, Salma M. Ali, Hongjun Chen, Antonio Tricoli, Cuong Ton-That","doi":"10.1002/admi.70572","DOIUrl":"https://doi.org/10.1002/admi.70572","url":null,"abstract":"The photoelectrochemical (PEC) performance of WO3 photoanodes is highly sensitive to near-surface defect chemistry, yet the role of plasma-gas chemistry in governing oxygen-vacancy states and interfacial energetics remains insufficiently understood. Here, we show that radio frequency (RF) remote plasma enables gas-selective control over the near-surface defect structure of WO3, leading to markedly different water-oxidation behavior without altering the bulk crystal structure. Under AM 1.5G illumination, Ar-treated WO3 delivers the best overall performance, exhibiting a photocurrent of 0.78 mA cm−2 at 1.23 VRHE, more than twice that of O2-treated WO3. Ar treatment generates the most oxygen-vacancy-rich surface, the highest W5+ content, and a marked increase in donor density. In contrast, O2 plasma passivates vacancy-related states, shifts the onset and flat-band potentials to more positive values, and gives the poorest PEC response, while N2 plasma yields intermediate behavior. Cathodoluminescence provides further insight into the nature of the plasma-modified defect states: Ar treatment strongly enhances the red luminescence band at ∼1.85 eV, indicating selective enrichment of reactive near-surface vacancy states. We propose a defect-assisted PEC model in which plasma-generated near-surface vacancy states increase donor density, band bending, and interfacial hole transfer, leading to more efficient utilization of photogenerated charge carriers.","PeriodicalId":115,"journal":{"name":"Advanced Materials Interfaces","volume":"13 14","pages":""},"PeriodicalIF":4.5,"publicationDate":"2026-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/admi.70572","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148533320","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0