Materials Horizons最新文献_第10页

Materials Horizons Emerging Investigator Series: Professor Chris Bartel, University of Minnesota, USA Materials Horizons新兴研究者系列：Chris Bartel教授，美国明尼苏达大学。

IF 10.7 2区材料科学

Materials Horizons Pub Date : 2025-09-08 DOI: 10.1039/D5MH90098K

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引用次数: 0

Is high specific surface area essential for anode catalyst supports in proton exchange membrane water electrolysis? 在质子交换膜电解中，高比表面积对于阳极催化剂载体是必要的吗？

IF 10.7 2区材料科学

Materials Horizons Pub Date : 2025-09-08 DOI: 10.1039/d5mh01127b

Kejie Lao, Xinru Liu, Huihong Lin, Linrui Wen, Yaping Pan, Tian Hu, Hua Bing Tao, Nanfeng Zheng

{"title":"Is high specific surface area essential for anode catalyst supports in proton exchange membrane water electrolysis?","authors":"Kejie Lao, Xinru Liu, Huihong Lin, Linrui Wen, Yaping Pan, Tian Hu, Hua Bing Tao, Nanfeng Zheng","doi":"10.1039/d5mh01127b","DOIUrl":"https://doi.org/10.1039/d5mh01127b","url":null,"abstract":"Dispersing iridium onto high-specific-surface-area supports is a widely adopted strategy to maximize iridium utilization in anode catalysts of proton exchange membrane water electrolysis (PEMWE). However, here we demonstrate that the overall cell performance, including initial efficiency and long-term stability, does not benefit from the typical high specific surface area of catalyst supports. The conventional understanding that high iridium utilization on high-specific-surface-area supports increases activity holds only in aqueous electrolytes, while under the typical working conditions of PEMWE, the mass transport within the anode catalyst layers plays a more significant role in the overall performance. Particularly, the iridium oxide on the supports with 10-fold lower specific surface area exhibited an almost 3-fold lower decay rate without sacrificing original performance, owing to the enhanced mass transport enabled by the porous electrode structure. By further decreasing the Ir loading of catalysts, the advantages of low-surface-area supports became more pronounced, as the resulting anode achieved both enhanced performance and durability-demonstrating a 98 mV lower cell voltage and maintaining an exceptionally low degradation rate of only 8.8 μV h-1 over 1900 hours at 2.0 A cm-2, corresponding to a nearly 10-fold improvement. These findings can help guide the rational design of catalysts for practical, low-cost PEMWE.","PeriodicalId":87,"journal":{"name":"Materials Horizons","volume":" ","pages":""},"PeriodicalIF":10.7,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145013527","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

Numerical and topological description of contact areas at different size scales for the contact of rough solid surfaces. 粗糙固体表面不同尺寸尺度接触区域的数值和拓扑描述。

IF 10.7 2区材料科学

Materials Horizons Pub Date : 2025-09-05 DOI: 10.1039/d5mh01327e

Aleksandr S Aglikov, Mikhail V Zhukov, Timur A Aliev, Vladislav I Maslii, Paul V Gelfenshtein, Dmitry A Kozodaev, Daria V Andreeva, Michael Nosonovsky, Ekaterina V Skorb

{"title":"Numerical and topological description of contact areas at different size scales for the contact of rough solid surfaces.","authors":"Aleksandr S Aglikov, Mikhail V Zhukov, Timur A Aliev, Vladislav I Maslii, Paul V Gelfenshtein, Dmitry A Kozodaev, Daria V Andreeva, Michael Nosonovsky, Ekaterina V Skorb","doi":"10.1039/d5mh01327e","DOIUrl":"https://doi.org/10.1039/d5mh01327e","url":null,"abstract":"This study introduces a novel heuristic phenomenological model for analyzing the evolution of contact areas on rough surface. Contrasting with traditional methods, it employs a cut-off threshold approach to track numerical and topological metrics across different deformation stages. The model quantifies contact area distributions, nested sub-regions, and self-affine parameters, revealing universal trends across scales spanning nanometers to kilometers. Metrics for synthetically generated isotropic surfaces with Hurst exponents H = 2.5 and 3.5 correlate closely with those from AFM and SEM experimental datasets, respectively. In addition, the model has been tested on NASA's SRTM datasets. Cross-correlation demonstrate significant similarities in numerical and topological metrics across diverse measurement techniques, surface types, and scales, highlighting the method's robustness and calibration-free scale invariance. This approach bridges gaps in multiscale tribological analysis, offering deeper insights into frictional transitions and surface interactions. Beyond tribology and materials science, this general approach enables fundamental characterization of surface morphology as such, making it applicable to diverse fields including geomorphology, biomimetics, and nanotechnology.","PeriodicalId":87,"journal":{"name":"Materials Horizons","volume":" ","pages":""},"PeriodicalIF":10.7,"publicationDate":"2025-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144999204","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

Metathesis and the building block approach to novel layered copper oxyselenides - useful tool or synthetic dead-end? 新型层状氧化硒化铜的复分解和构建块方法——有用的工具还是合成的死胡同？

IF 10.7 2区材料科学

Materials Horizons Pub Date : 2025-09-05 DOI: 10.1039/d5mh01350j

Liam Kemp, Geoffrey Hyett

引用次数: 0

π-Bridge engineering strategy: tailoring S-xanthene dyes with strong absorption for high-efficiency photothermal therapy. π桥工程策略：定制强吸收的s -杂蒽染料用于高效光热治疗。

IF 10.7 2区材料科学

Materials Horizons Pub Date : 2025-09-04 DOI: 10.1039/d5mh01254f

Yu Zhao, Rui-Rui Zhang, Nan Wang, Xiao-Li Tian, Li-Na Zhang, Wen-Li Xia, Zhou-Yu Wang, Xiao-Qi Yu, Kun Li

{"title":"π-Bridge engineering strategy: tailoring S-xanthene dyes with strong absorption for high-efficiency photothermal therapy.","authors":"Yu Zhao, Rui-Rui Zhang, Nan Wang, Xiao-Li Tian, Li-Na Zhang, Wen-Li Xia, Zhou-Yu Wang, Xiao-Qi Yu, Kun Li","doi":"10.1039/d5mh01254f","DOIUrl":"https://doi.org/10.1039/d5mh01254f","url":null,"abstract":"NIR-II probes show great potential for fluorescence imaging (FLI) and therapeutics, where the molar extinction coefficient (MEC), a pivotal optical parameter, governs their imaging quality and therapeutic efficacy. Nevertheless, engineering NIR-II probes with ultrahigh MEC remains a formidable challenge, limiting their biomedical applications. In this work, we designed a superior NIR-II D-π-A-π-D probe, SCU-SX-T, which features an S-xanthene core as the conjugate acceptor, a diphenylamine (DPA) rotor, and π-bridge that induces bathochromic shifts in absorption/emission spectra while enhancing molecular rigidity and planarity. This rational molecular design enables the probe to achieve exceptionally ultrahigh MEC of 2.0 × 105 M-1 cm-1, outstanding photothermal conversion efficiency (PCE) of 91.5%, and fluorescence quantum yield of 0.04%. Notably, the SCU-SX-T NPs facilitated high-resolution vascular imaging of the abdominal region and precise surgery in living mice, demonstrating their robust NIR-II fluorescence capability. Furthermore, NIR-II FLI/photothermal imaging (PTI)-guided tumor visualization and photothermal therapy (PTT) was successfully achieved. The integration of α-PD-L1 checkpoint blockade therapy led to significant inhibition of proximal tumor growth, highlighting the potential of this synergistic therapeutic strategy. Overall, this work provides a comprehensive NIR-II probe with excellent performance and ideas for the future design of NIR-II probes with high MEC.","PeriodicalId":87,"journal":{"name":"Materials Horizons","volume":" ","pages":""},"PeriodicalIF":10.7,"publicationDate":"2025-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144991066","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

Atomically dispersed Ru in ZIF-67 as a high-performance HER catalyst: in situ structural evolution and deactivation mechanism elucidation. 原子分散Ru在ZIF-67中作为高性能HER催化剂：原位结构演变和失活机理的阐明。

IF 10.7 2区材料科学

Materials Horizons Pub Date : 2025-09-04 DOI: 10.1039/d5mh01223f

Zhe Liu, Rui Jin, Gui Zhao, Qinshan Tang, Tianrui Kang, Maolin Wang, Jia Liu, Xiaoxiao Huang, Bingrong Guo, Xi Liu, Siwei Li

{"title":"Atomically dispersed Ru in ZIF-67 as a high-performance HER catalyst: in situ structural evolution and deactivation mechanism elucidation.","authors":"Zhe Liu, Rui Jin, Gui Zhao, Qinshan Tang, Tianrui Kang, Maolin Wang, Jia Liu, Xiaoxiao Huang, Bingrong Guo, Xi Liu, Siwei Li","doi":"10.1039/d5mh01223f","DOIUrl":"https://doi.org/10.1039/d5mh01223f","url":null,"abstract":"Despite the prevalence of zeolitic imidazolate framework (ZIF-67)-derived catalysts for the hydrogen evolution reaction (HER), the catalytic potential of pristine ZIF-67 remains obscured by its inherent inertness. In this work, we address this gap by developing an annealing-free strategy to implant atomically dispersed noble metals (Ru, Rh, and Pd) into the intact ZIF-67 framework. Remarkably, Ru single-atom modification reduces the HER overpotential of ZIF-67/CC by 252 mV at 10 mA cm-2 (from 331 mV to 79 mV) and slashes the Tafel slope by 70%, representing the most significant activation of pristine ZIF-67 reported for the HER. Operando studies combined with theoretical calculations uncover an electrochemical reconstruction pathway: during operation, the ZIF-67 skeleton collapses into Co(OH)2, while Ru atoms aggregate into nanoparticles, causing phase segregation. This transformation excessively strengthens hydrogen adsorption, ultimately degrading performance. Our work establishes single-atom engineering as an effective approach to unlock the latent activity of pristine MOFs while revealing their reconstruction behavior under cathodic conditions.","PeriodicalId":87,"journal":{"name":"Materials Horizons","volume":" ","pages":""},"PeriodicalIF":10.7,"publicationDate":"2025-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144990981","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

Dual-functional surface coatings integrating antimicrobial and antibiofouling mechanisms: from material design to application landscapes. 集成抗菌和抗污机制的双功能表面涂层：从材料设计到应用景观。

IF 10.7 2区材料科学

Materials Horizons Pub Date : 2025-09-03 DOI: 10.1039/d5mh01132a

Sandya S A Athukoralalage, Nasim Amiralian

{"title":"Dual-functional surface coatings integrating antimicrobial and antibiofouling mechanisms: from material design to application landscapes.","authors":"Sandya S A Athukoralalage, Nasim Amiralian","doi":"10.1039/d5mh01132a","DOIUrl":"10.1039/d5mh01132a","url":null,"abstract":"Surface-mediated pathogen transmission remains a critical vector for infectious disease, especially amidst biofilm-associated infections and rising antimicrobial resistance. This review critically examines the emergence of dual-functional surface coatings that integrate antimicrobial and antibiofouling strategies to provide continuous protection against microbial contamination. This paper investigates how recent innovations leverage physicochemical repulsion, contact-active biocides, controlled-release systems, and stimuli-responsive architectures to tackle both microbial adhesion and survival. This review spans applications across implants, wound dressings, filtration membranes, public touch surfaces, and marine systems, with a comparative lens on efficacy, biocompatibility, and long-term durability. Special attention is given to smart coatings that respond to stimuli (ex: pH, enzymes, and radiation) and nanocellulose-based systems as sustainable, tunable platforms. Despite significant advancements, challenges persist in balancing antimicrobial efficiency, surface stability, and ecological safety. We conclude by identifying key design principles and translational pathways for the development of next-generation multifunctional coatings capable of addressing complex microbial threats across healthcare, public and environmental interfaces.","PeriodicalId":87,"journal":{"name":"Materials Horizons","volume":" ","pages":""},"PeriodicalIF":10.7,"publicationDate":"2025-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144936716","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

Uncovering internal water-flux and surface-potential dominance in hydrogel-based moisture-enabled power generation: mechanistic insights and performance enhancement. 揭示基于水凝胶的湿气发电中内部水通量和表面电位的优势：机理见解和性能增强。

IF 10.7 2区材料科学

Materials Horizons Pub Date : 2025-09-03 DOI: 10.1039/d5mh01123j

Huping Yan, Liangyu Li, Chuanshuai Dong, Hao Wu, Ronghui Qi

{"title":"Uncovering internal water-flux and surface-potential dominance in hydrogel-based moisture-enabled power generation: mechanistic insights and performance enhancement.","authors":"Huping Yan, Liangyu Li, Chuanshuai Dong, Hao Wu, Ronghui Qi","doi":"10.1039/d5mh01123j","DOIUrl":"10.1039/d5mh01123j","url":null,"abstract":"Ambient humidity is an abundant yet underexploited energy reservoir, and its sustained conversion mechanisms remain elusive. This study employs single-layer, bilayer and ion-selective designs, in combination with Kelvin-probe force microscopy and molecular dynamics simulations, to delineate the fundamental physics of hydrogel-based moisture-enabled generators (MEGs). We demonstrate that continuous, directional water flux-rather than ion migration-governs electricity generation: the transport of 1 g of H2O through the hydrogel network yields ≈9.3 μA h, and vapor-phase migration alone sustains output over hours to days. Interrupting water transport (e.g., via carbon-membrane insertion or device sealing) extinguishes the current instantly. Moreover, the open-circuit voltage scales with the internal surface-potential gradient: increasing this gradient from 31.3 mV to 810.7 mV elevates the output by 2.5 times. Guided by these findings, we introduced a co-optimization strategy that simultaneously enhances water transport and amplifies the potential gradient, thereby increasing the voltage from 0.1 to 0.6 V. Further H+ modification increased the surface potential difference by 111.5 mV, improving the output by 30-50% and enabling sustained power under continuous water flow. Surface evaporation contributes solely by sustaining water flux, whereas triboelectric and streaming potential effects are negligible. This work establishes a quantitative mechanistic framework and delivers clear design principles for robust, high-efficiency MEGs, paving the way for self-powered sensors, portable electronics and distributed energy-harvesting platforms.","PeriodicalId":87,"journal":{"name":"Materials Horizons","volume":" ","pages":""},"PeriodicalIF":10.7,"publicationDate":"2025-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144936517","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

Traceable nanoparticles with mitochondria-targeting pyruvate-Cu induce cuproptosis for enhanced triple-negative breast cancer therapy in a mouse model. 可追踪的纳米颗粒与线粒体靶向丙酮酸铜诱导铜增生，以增强三阴性乳腺癌治疗小鼠模型。

IF 10.7 2区材料科学

Materials Horizons Pub Date : 2025-09-02 DOI: 10.1039/d5mh01047k

Chen Peng, Jiaxin Li, Nan Wang, Xinyue Zhang, Wen Zhang, Zhirui Li, Keyi Zhang, Yangchaowei Ji, Wei He, Yan Li

引用次数: 0

Perylene diimide-based photocatalysts: from molecular design to emerging applications. 苝二亚胺基光催化剂：从分子设计到新兴应用。

IF 10.7 2区材料科学

Materials Horizons Pub Date : 2025-09-02 DOI: 10.1039/d5mh01487e

Yin Xiao, Zihe Chen, Xin Liu, Xusheng Wang, Guixiang Ding, Zhaoqiang Wang, Peng Wang, Guangfu Liao

{"title":"Perylene diimide-based photocatalysts: from molecular design to emerging applications.","authors":"Yin Xiao, Zihe Chen, Xin Liu, Xusheng Wang, Guixiang Ding, Zhaoqiang Wang, Peng Wang, Guangfu Liao","doi":"10.1039/d5mh01487e","DOIUrl":"https://doi.org/10.1039/d5mh01487e","url":null,"abstract":"Perylene diimide (PDI)-based semiconductor materials show significant promise for photocatalytic environmental decontamination and the conversion of energy resources but suffer from inefficient photocarrier separation which greatly limits their activity. Consequently, designing PDI-based photocatalysts to enhance carrier separation has become a major research focus. This persistent challenge has positioned the rational design of PDI-based architectures to enhance carrier dissociation kinetics and elevate functional efficacy as a central focus point of research in the field of contemporary photocatalysis. This review firstly examines recent progress in the rational design of PDI-based photocatalysts and their charge transfer mechanism. Then, advances in the fabrication of PDI photocatalysts and associated electron/hole transfer mechanisms are discussed. It systematically evaluates their enhanced activity in key applications: water splitting, CO2 reduction, N2 fixation, and pollutant degradation etc. Subsequently, the fundamental photocatalytic mechanism inherent to PDI-based materials is scrutinized in depth. Finally, outstanding issues and prospective uses for PDI-based photocatalysts are also discussed. It is believed that this review provides a valuable direction for engineering advanced PDI-based photocatalytic systems.","PeriodicalId":87,"journal":{"name":"Materials Horizons","volume":" ","pages":""},"PeriodicalIF":10.7,"publicationDate":"2025-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144936433","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