IF 0.9 4区材料科学

Russian Journal of Nondestructive Testing Pub Date : 2025-09-08 DOI: 10.1134/S1061830925603940

Suresh Kumar Bhambhu, Vanita Arora, Ravibabu Mulaveesala

{"title":"Matched Filter-Based Post Processing Approach for Active Infrared Thermography for Nondestructive Testing and Evaluation of Carbon Fibre Reinforced Polymer Materials","authors":"Suresh Kumar Bhambhu, Vanita Arora, Ravibabu Mulaveesala","doi":"10.1134/S1061830925603940","DOIUrl":"10.1134/S1061830925603940","url":null,"abstract":"This article reports on the effectiveness of infrared thermography (IRT) in detecting blind holes of varying depth and diameter in carbon fiber reinforced polymer (CFRP) sample. It utilises halogen lamps as the heat source and implements three excitation techniques: pulse thermography (PT), lock-in thermography (LT) and frequency modulation thermal wave imaging (FMTWI); along with that, it compares two post-processing approaches, cross-correlation (CC) and frequency domain phase (FDP) on the obtained thermal images. The signal-to-noise ratio (SNR) is considered a figure of merit for evaluating the effectiveness of each technique and its associated post-processing approaches. The results demonstrate that the CC post-processing technique consistently outperforms the FDP method in enhancing defect visibility and improving SNR values across all excitation techniques and configurations. This research highlights the potential of IRT as a reliable, non-destructive testing method for detecting and characterising defects in a chosen CFRP test sample.","PeriodicalId":764,"journal":{"name":"Russian Journal of Nondestructive Testing","volume":"61 6","pages":"704 - 714"},"PeriodicalIF":0.9,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145011834","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

CeO2 nanoparticles dotted on NiAl-LDHs as Z-scheme heterojunction: synergistic enhancement of adsorption and photocatalytic properties 点缀在NiAl-LDHs上的CeO2纳米颗粒作为z型异质结：协同增强吸附和光催化性能

IF 21.8 2区材料科学

Advanced Composites and Hybrid Materials Pub Date : 2025-09-08 DOI: 10.1007/s42114-025-01424-9

Xuhao Li, Xiangling Zhang, Zan Song, Chen Wang, Jing Bai, Jun Shen, Rong Zhang

{"title":"CeO2 nanoparticles dotted on NiAl-LDHs as Z-scheme heterojunction: synergistic enhancement of adsorption and photocatalytic properties","authors":"Xuhao Li, Xiangling Zhang, Zan Song, Chen Wang, Jing Bai, Jun Shen, Rong Zhang","doi":"10.1007/s42114-025-01424-9","DOIUrl":"10.1007/s42114-025-01424-9","url":null,"abstract":"<div>Conventional adsorption technologies face significant challenges in dye wastewater treatment, particularly in achieving effective mineralization and reducing toxicity. To address these limitations, we have developed novel nanomaterials that integrate both adsorption and photocatalytic functions, thereby enhancing treatment efficiency. The composite materials were synthesized by co-precipitating CeO2 onto the surface of NiAl-Layered Double Hydroxides (NiAl-LDHs). These composites were then employed for the degradation of Naphthol Blue Black (NBB) effluent. The results revealed that the optimized CeO2@NiAl-LDHs achieved a 96.2% removal of NBB, which represents a 67.9% improvement compared to pure NiAl-LDHs. The primary mechanisms of NBB adsorption onto CeO2@NiAl-LDHs were identified as ligand exchange and electrostatic attraction. Additionally, CeO2@NiAl-LDHs form a direct Z-scheme heterojunction, which promotes efficient electron–hole separation and enhances the generation of ·OH and O2·⁻, key species involved in NBB degradation. After 8 h of treatment, the CeO2@NiAl-LDHs system reduced biological toxicity of wastewater, while improving its biodegradability (BOD/COD increased to 0.41). Even after 5 cycles, the composite material’s removal rate for NBB only slightly decreased from 96.2% to 88.6%. This study provides a practical approach for developing CeO2@NiAl-LDHs-based photocatalysts with excellent adsorption and photocatalytic properties, presenting a novel solution for wastewater treatment.<h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":7220,"journal":{"name":"Advanced Composites and Hybrid Materials","volume":"8 5","pages":""},"PeriodicalIF":21.8,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s42114-025-01424-9.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145011843","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Harnessing volatile organic compound biomarkers for early cancer detection: molecular to nanotechnology-based approaches. 利用挥发性有机化合物生物标志物进行早期癌症检测：基于分子到纳米技术的方法。

IF 5.1 3区材料科学

Nanoscale Pub Date : 2025-09-08 DOI: 10.1039/d5nr01714a

Nagavendra Kommineni, Navneet Kaur, G S Sainaga Jyothi Vaskuri, Nikesh Narang, Mohammad Mirazul Islam, Pratap Basim, Mark Woollam, Lalitkumar K Vora, Mangilal Agarwal, Jonathan F Lovell, Rajendra Prasad Meena

{"title":"Harnessing volatile organic compound biomarkers for early cancer detection: molecular to nanotechnology-based approaches.","authors":"Nagavendra Kommineni, Navneet Kaur, G S Sainaga Jyothi Vaskuri, Nikesh Narang, Mohammad Mirazul Islam, Pratap Basim, Mark Woollam, Lalitkumar K Vora, Mangilal Agarwal, Jonathan F Lovell, Rajendra Prasad Meena","doi":"10.1039/d5nr01714a","DOIUrl":"https://doi.org/10.1039/d5nr01714a","url":null,"abstract":"Early-stage cancer diagnosis is considered a grand challenge, and even though advanced analytical assays have been established through molecular biology techniques, there are still clinical limitations. For example, low concentration of target biomarkers at early stages of cancer, background values from the healthy cells, individual variation, and factors like DNA mutations, remain the limiting factor in early cancer detection. Volatile organic compound (VOC) biomarkers in exhaled breath are produced during cancer cell metabolism, and therefore may present a promising way to diagnose cancer at the early stage since they can be detected both rapidly and non-invasively. However, there are challenges in VOC analysis, especially regarding standardization of sampling, necessity for preconcentration, and cancer-specificity of biomarkers. There are also additional challenges, including the design and development of highly sensitive miniaturized sensors that detect VOC biomarkers at low concentrations with minimum cost efforts. In the present article, we have reviewed the potential impact of VOCs in cancer detection in the context of traditional methods such as liquid biopsies, which are typically employed at advanced stages of cancer progression. Described ultrasensitive technologies such as gas chromatography-mass spectrometry (GC-MS) and electronic noses using a variety of nanomaterials have been considered as technologies for breath-based early cancer detection.","PeriodicalId":92,"journal":{"name":"Nanoscale","volume":" ","pages":""},"PeriodicalIF":5.1,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145013498","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Viral RNA Silencing Suppressor Modulates Reactive Oxygen Species Levels to Induce the Autophagic Degradation of Dicer-Like and Argonaute-Like Proteins. 病毒RNA沉默抑制因子调节活性氧水平诱导dicer样蛋白和argonaute样蛋白的自噬降解。

IF 14.1 1区材料科学

Advanced Science Pub Date : 2025-09-08 DOI: 10.1002/advs.202506572

Shiyu Zhai, Tianxing Pang, Shiyu Peng, Shenshen Zou, Zhiping Deng, Nobuhiro Suzuki, Zhensheng Kang, Ida Bagus Andika, Liying Sun

{"title":"A Viral RNA Silencing Suppressor Modulates Reactive Oxygen Species Levels to Induce the Autophagic Degradation of Dicer-Like and Argonaute-Like Proteins.","authors":"Shiyu Zhai, Tianxing Pang, Shiyu Peng, Shenshen Zou, Zhiping Deng, Nobuhiro Suzuki, Zhensheng Kang, Ida Bagus Andika, Liying Sun","doi":"10.1002/advs.202506572","DOIUrl":"https://doi.org/10.1002/advs.202506572","url":null,"abstract":"Mounting evidence indicates that viruses exploit elevated reactive oxygen species (ROS) levels to promote replication and pathogenesis, yet the mechanistic underpinnings of this viral strategy remain elusive for many viral systems. This study uncovers a sophisticated viral counter-defense mechanism in the Cryphonectria hypovirus 1 (CHV1)-Fusarium graminearum system, where the viral p29 protein subverts host redox homeostasis to overcome antiviral responses. That p29 directly interacts with and inhibits the enzymatic activity of fungal NAD(P)H-dependent FMN reductase 1 (FMR1), leading to increased ROS accumulation and subsequent autophagy activation is demonstrated. Strikingly, this ROS-induced autophagy selectively targets for degradation two core antiviral RNA silencing components against CHV1 in F. graminearum, Dicer-like 2 (DCL2) and Argonaute-like 1 (AGL1), thereby compromising the host's primary antiviral defense system. Genetic analysis confirms this coordinated hijacking of host machineries, as CHV1 shows enhanced accumulation in the FMR1 knockout and reduced accumulation in autophagy-deficient fungal strains. This work reveals a tripartite interplay among oxidative stress, autophagy, and RNA silencing that CHV1 manipulates through p29 multifunctional activity. These findings provide a model for how viruses coordinately regulate distinct host defense systems to optimize infection.","PeriodicalId":117,"journal":{"name":"Advanced Science","volume":" ","pages":"e06572"},"PeriodicalIF":14.1,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145013463","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}

引用次数: 0

Enzymatic Anisotropic Growth of Gold Nanoparticles Based on DNA Origami Templates. 基于DNA折纸模板的金纳米颗粒酶促各向异性生长。

IF 9.1 2区材料科学

Small Methods Pub Date : 2025-09-08 DOI: 10.1002/smtd.202501092

Yuanyuan Luo, Liqiong Niu, Pengyan Hao, Xiaoya Sun, Di Lu, Na Wu

{"title":"Enzymatic Anisotropic Growth of Gold Nanoparticles Based on DNA Origami Templates.","authors":"Yuanyuan Luo, Liqiong Niu, Pengyan Hao, Xiaoya Sun, Di Lu, Na Wu","doi":"10.1002/smtd.202501092","DOIUrl":"https://doi.org/10.1002/smtd.202501092","url":null,"abstract":"Anisotropic gold nanoparticles (AuNPs) exhibit unique physicochemical properties that render them highly valuable for diverse applications. However, precise control over their growth direction and number of branches is challenging with conventional synthesis methods. A DNA origami-templated enzymatic synthesis strategy addresses this limitation. By spatially programming the arrangement of glucose oxidase (GOx) and gold nanoparticle seeds, localized high-concentration microenvironments of gold atoms are engineered on the seed surface. This design ensures that the deposition rate (Vdep) of Au0 in targeted regions surpasses the diffusion rate (Vdiff), directing the growth process via a \"hit-and-stick\" mechanism and enabling site-selective gold deposition. Systematic modulation of the relative positions of GOx and gold nanoparticle seeds enables controlled synthesis of anisotropic gold nanostructures with tunable growth angles and number of branches. This study not only provides a novel approach for the precision fabrication of anisotropic metallic nanomaterials but also highlights the unique advantages of DNA nanotechnology in advanced nanomanufacturing.","PeriodicalId":229,"journal":{"name":"Small Methods","volume":" ","pages":"e01092"},"PeriodicalIF":9.1,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145013549","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}

引用次数: 0

On the development of an interfacial energy and microstructure dependent model to predict bridging phenomenon and solidification cracking behavior 建立了基于界面能和微观结构的桥接现象和凝固开裂预测模型

IF 9.4 1区材料科学

Acta Materialia Pub Date : 2025-09-08 DOI: 10.1016/j.actamat.2025.121520

Mohsen Sheikhi, Mohammad Amin Jabbareh, Shayan Salari, Shadab Sarmast-Ghahfarokhi, Haiou Jin, Zeinab Malekshahi Beiranvand, Y. Norman Zhou, Michael J. Benoit

{"title":"On the development of an interfacial energy and microstructure dependent model to predict bridging phenomenon and solidification cracking behavior","authors":"Mohsen Sheikhi, Mohammad Amin Jabbareh, Shayan Salari, Shadab Sarmast-Ghahfarokhi, Haiou Jin, Zeinab Malekshahi Beiranvand, Y. Norman Zhou, Michael J. Benoit","doi":"10.1016/j.actamat.2025.121520","DOIUrl":"https://doi.org/10.1016/j.actamat.2025.121520","url":null,"abstract":"Solidification cracking is one of the most prevalent defects occurs in casting, welding, and additive manufacturing processes. One of the required parameters that is challenging to specify in the analysis of solidification cracking by most of the common criteria is the bridging liquid fraction (fl,brid), which refers to the liquid fraction below which solidification cracking susceptibility (SCS) reduces. A model was developed based on the interfacial energies and solidification microstructure size to calculate fl,brid across different alloy compositions and, in turn, accurately predict the solidification cracking behavior. The higher sensitivity of grain boundaries to cracking compared to dendritic boundaries inside the grain can be easily shown with the model. The model also accurately predicts the composition with the highest cracking susceptibility (CSCSmax) in various binary aluminium alloy systems. Furthermore, based on this model, changes in CSCSmax under different processing conditions (i.e., thermal gradient and solidification rate) were accurately predicted by accounting for changes in microstructure size and possible back diffusion occurrence. The model was verified with independent experimental reports and original laser welding experiments.","PeriodicalId":238,"journal":{"name":"Acta Materialia","volume":"86 1","pages":""},"PeriodicalIF":9.4,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145009424","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}

引用次数: 0

Yttrium niobium oxide-modified disposable carbon electrode for electrochemical sensing of 4-nitroaniline in environmental samples 氧化铌钇修饰一次性碳电极对环境样品中4-硝基苯胺的电化学传感

IF 6.6 3区材料科学

Electrochimica Acta Pub Date : 2025-09-08 DOI: 10.1016/j.electacta.2025.147342

Sharmila Tharuman, Agalya Mahalingam, Nandini Nataraj, Tse-Wei Chen, Sivaprakash Sengodan, Shen-Ming Chen, Chen-Chi Wang, Ming-Chin Yu, Heng-Yuan Hsu

{"title":"Yttrium niobium oxide-modified disposable carbon electrode for electrochemical sensing of 4-nitroaniline in environmental samples","authors":"Sharmila Tharuman, Agalya Mahalingam, Nandini Nataraj, Tse-Wei Chen, Sivaprakash Sengodan, Shen-Ming Chen, Chen-Chi Wang, Ming-Chin Yu, Heng-Yuan Hsu","doi":"10.1016/j.electacta.2025.147342","DOIUrl":"https://doi.org/10.1016/j.electacta.2025.147342","url":null,"abstract":"In this paper, we report the synthesis and application of yttrium niobium oxide (YNbO4) nanomaterial as an efficient electrocatalyst for the electrochemical detection of 4-nitroaniline (4-NTAN), a hazardous and persistent environmental contaminant. YNbO4 nanoparticles were synthesized using a facile hydrothermal method, yielding a highly crystalline monoclinic phase with homogeneous elemental distribution and nanoscale dimensions. Spectroscopic analyses (XRD, FTIR, and XPS) confirmed the unique monoclinic fergusonite-type structure, wherein Nb exhibits a distorted tetrahedral coordination with oxygen- a unique characteristic that significantly contributes to its superior catalytic performance. When employed to modify screen-printed carbon electrode (YNbO4/SPCE), the material exhibited markedly improved electron transfer kinetics, as evidenced by significantly higher reduction currents and lower overpotentials compared to the bare SPCE. The developed sensor displayed an ultra-low detection limit (10.4 nM), a wide linear detection range (0.049 – 960.23 μM), high sensitivity, and remarkable selectivity against common interfering species. Notably, the sensor retained over 90 % of its initial response even after prolonged measurements, underscoring its excellent stability. To the best of our knowledge, this is the first report demonstrating the electrocatalytic application of YNbO4 for nitroaromatic pollutant detection. These findings establish YNbO4 as a promising, low-cost, and portable sensing material for real-time environmental monitoring of 4-NTAN in aqueous systems.","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"38 1","pages":""},"PeriodicalIF":6.6,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145009526","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Selective adsorption-catalytic action of spinel sulfur reduction catalyst based on geometric structure regulation on lithium polysulfide 基于几何结构调控的尖晶石硫还原催化剂对聚硫锂的选择性吸附催化作用

IF 6.6 3区材料科学

Electrochimica Acta Pub Date : 2025-09-08 DOI: 10.1016/j.electacta.2025.147345

Yanlei Shen, Boyu Li, Ziyao Zhang, Jiajing Liu, Huanhuan Ren, Yuman Zhou, Weitao Zhou, Jianxin He

{"title":"Selective adsorption-catalytic action of spinel sulfur reduction catalyst based on geometric structure regulation on lithium polysulfide","authors":"Yanlei Shen, Boyu Li, Ziyao Zhang, Jiajing Liu, Huanhuan Ren, Yuman Zhou, Weitao Zhou, Jianxin He","doi":"10.1016/j.electacta.2025.147345","DOIUrl":"https://doi.org/10.1016/j.electacta.2025.147345","url":null,"abstract":"Spinel-structured catalysts demonstrate significant potential for sulfur reduction reaction (SRR) catalysis in lithium-sulfur batteries (LSBs) owing to their geometrically tunable active sites, yet precise structural optimization for simultaneous enhancement of lithium polysulfides (LiPSs) adsorption and catalytic conversion remains challenging. This study addresses this gap through strategic cation occupancy regulation in CoxMn3-xO4 spinels, establishing a dual-active-site system comprising tetrahedral Co3+ (Td) and octahedral Mn3+ (Oh) centers that drive selective LiPSs electrocatalysis via geometric synergy. Theoretical and experimental analyses confirm Co1.2Mn1.8O4 as the optimal configuration, where optimized Td/Oh Site Distribution Enables: (i) stable covalent Co-S bonding for strong LiPSs adsorption at Td sites, and (ii) dynamic Mn³⁺ (Oh)-S d-p orbital coupling via delocalized d² electrons that critically reduce LiPSs desorption energy barriers (ΔG ≤ 0.82 eV). Leveraging this complementary functionality, a Co1.2Mn1.8O4-embedded carbon nanofiber interlayer delivers exceptional cycling stability—achieving 400 cycles at 1 C with 74.6% capacity retention. This work extends the application of spinel-type SRR catalysts to high-performance lithium-sulfur batteries.","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"34 1","pages":""},"PeriodicalIF":6.6,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145009531","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Hydrogen-Bond-Directed Chirality Transfer in Helical Polyacetylene–Perovskite–PDMS Elastomeric Films for Stretching-Tunable Multicolor Circularly Polarized Luminescence 螺旋聚乙炔-钙钛矿- pdms弹性薄膜中可拉伸可调多色圆偏振发光的氢键定向手性转移

IF 9.5 2区材料科学

ACS Applied Materials & Interfaces Pub Date : 2025-09-08 DOI: 10.1021/acsami.5c11729

Yanze Liu, Hai Zhong, Biao Zhao, Youping Wu, Jianping Deng

{"title":"Hydrogen-Bond-Directed Chirality Transfer in Helical Polyacetylene–Perovskite–PDMS Elastomeric Films for Stretching-Tunable Multicolor Circularly Polarized Luminescence","authors":"Yanze Liu, Hai Zhong, Biao Zhao, Youping Wu, Jianping Deng","doi":"10.1021/acsami.5c11729","DOIUrl":"https://doi.org/10.1021/acsami.5c11729","url":null,"abstract":"Circularly polarized luminescence (CPL) has emerged as a critical technology for anticounterfeiting and optical display applications due to its unique chiroptical properties. We report a multicolor CPL-emitting elastomeric film (P37/PSK@SiO2-PDMS) that synergistically combines chiral helical polyacetylene (P37) and a surface-engineered perovskite (PSK@SiO2) through hydrogen-bond-directed assembly. Confinement within the PDMS matrix drives P37 to self-assemble into a chiral supramolecular structure through hydrogen bonding, inducing a chiroptical inversion. Simultaneously, surface modification of PSK@SiO2 enhances its compatibility with PDMS while enabling efficient chirality and energy transfer from P37 via interfacial hydrogen bonds. The resulting material exhibits exceptional CPL performance, achieving a maximum dissymmetry factor of 4.3 × 10–2 and a high photoluminescence quantum yield up to 67%. The PDMS matrix not only stabilizes the PSK components but also enables reversible, strain-tunable CPL modulation through its elastomeric properties. This work establishes a hydrogen-bonding paradigm for designing high-performance chiral PSK materials, while demonstrating their potential for dynamic photonic applications.","PeriodicalId":5,"journal":{"name":"ACS Applied Materials & Interfaces","volume":"31 1","pages":""},"PeriodicalIF":9.5,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145009116","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}

引用次数: 0

Ni Triple-Atom Doped Cu2O Electrocatalysts for Efficient Electrochemical Urea Synthesis: A Theoretical Study Ni三原子掺杂Cu2O电催化剂高效电化学合成尿素的理论研究

IF 17.1 1区材料科学

ACS Nano Pub Date : 2025-09-08 DOI: 10.1021/acsnano.5c10715

Xiaoqing Li, Yiyi Li, Haoqiang Li, Weikuan Li, Yajuan Cheng, Haiping Lin, Wenjing Huang, Shiyun Xiong

{"title":"Ni Triple-Atom Doped Cu2O Electrocatalysts for Efficient Electrochemical Urea Synthesis: A Theoretical Study","authors":"Xiaoqing Li, Yiyi Li, Haoqiang Li, Weikuan Li, Yajuan Cheng, Haiping Lin, Wenjing Huang, Shiyun Xiong","doi":"10.1021/acsnano.5c10715","DOIUrl":"https://doi.org/10.1021/acsnano.5c10715","url":null,"abstract":"Chemical C–N coupling from CO2 and N2 toward urea synthesis is an appealing approach for Bosch–Meiser urea production. However, this process faces significant challenges, including the difficulty of N2 activation, high energy barriers, and low selectivity. In this study, we theoretically designed a Ni triple-atom doped Cu2O catalyst, Ni TAC@Cu2O, which exhibits exceptional urea synthesis performance. Using density functional theory and the constant potential method, we show that the superior catalytic performance of Ni TAC@Cu2O stems from synergistic metal–support interactions (MSIs) between Ni atoms and Cu2O. Cu2O serves as an anchoring substrate and actively participates in CO2 activation via strong Cu–O bonding, whereas Ni serves as the pivotal active center for N2 activation. Ni TAC@Cu2O achieves a moderate N2 adsorption energy and a limiting potential (UL) of −0.60 V, overperforming Ni single-atom (Ni SAC@Cu2O, UL = −0.85 V) and Ni double-atom (Ni DAC@Cu2O, UL = −0.88 V) catalysts. The third Ni atom enhances electron donation, reducing the energy barrier of the rate-determining step (*CO + *N2 + H+ + e– → *CONNH), while O atoms in Cu2O regulate Ni’s electronic structure through MSIs. Additionally, Ni TAC@Cu2O demonstrates thermodynamic, electrochemical, and acid–base stability and effectively suppresses competing side reactions. This work underscores the importance of Cu2O-supported MSIs in multiatom catalysts for enhanced performance and provides insights for advanced electrocatalyst design.","PeriodicalId":21,"journal":{"name":"ACS Nano","volume":"372 1","pages":""},"PeriodicalIF":17.1,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145009161","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}

引用次数: 0

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