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Tunable physicochemical properties of PDMS@nanoparticle composites: modifications, mechanisms, and emerging applications PDMS@nanoparticle复合材料的可调物理化学性质:修改、机制和新兴应用
IF 4 1区 材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY Pub Date : 2026-01-13 DOI: 10.1016/j.pmatsci.2026.101656
B.D. Cardoso , G. Nobrega , I.S. Afonso , A. Souza , L.B. Neves , C.L. Faria , J.L. Diaz de Tuesta , J.E. Ribeiro , R.A. Lima
Polydimethylsiloxane@nanoparticles (PDMS@NPs) composites represent a versatile class of advanced elastomers whose physicochemical behavior can be finely tuned through nanoscale interfacial design and nanofiller morphology. Owing to their inherent flexibility, transparency, and chemical stability, PDMS based systems have emerged as model platforms for developing multifunctional materials with optimized mechanical, thermal, electrical, optical, acoustic and wetting properties. This review systematically elucidates the structure property relationships in PDMS@NPs composites and the interaction mechanisms between NPs and polymer chains that enable tunable control over bulk and interfacial behavior, with particular emphasis on how NPs dimensionality and aspect ratio (0D, 1D, and 2D fillers) regulate stress transfer, transport pathways, and functional interconnectivity within the matrix. Three main NP incorporation strategies, (namely, physical mixing of presynthesized NPs, in situ synthesis on cured PDMS, and in situ formation within uncured matrices) are critically compared in terms of interfacial coupling, dispersion stability, and processing scalability. Particular attention is given to how interfacial engineering, nanofiller morphology, and hierarchical architecture govern stress transfer, phonon transport, charge percolation, and optical or surface responses. In addition, a property design prospective is presented that links interphase design and nanofiller morphology to mechanical, thermal, electrical, optical, acoustic and wetting-controlled surface properties. This review further critically examines the limiting factors that reduce the applicability of PDMS@NPs composites, including performance degradation, interface instability, and limited recyclability, as well as long-term stability under mechanical, thermal, optical, and environmental conditions. Emerging directions such as green filler synthesis, recyclable PDMS matrices, dynamic and hierarchical interphases, and predictive modeling of morphology-dependent dynamic interfaces are outlined. Overall, this review provides a comprehensive and critical perspective on PDMS@NPs composites as a next generation of soft, functional, and sustainable elastomeric materials, opening new avenues for advances in flexible electronics, soft robotics, biomedical devices, and adaptive coatings.
Polydimethylsiloxane@nanoparticles (PDMS@NPs)复合材料代表了一种多用途的高级弹性体,其物理化学行为可以通过纳米级界面设计和纳米填料形态进行精细调整。由于其固有的灵活性、透明性和化学稳定性,基于PDMS的系统已成为开发具有优化的机械、热、电、光学、声学和润湿性能的多功能材料的模型平台。本文系统地阐述了PDMS@NPs复合材料中的结构性质关系,以及NPs和聚合物链之间的相互作用机制,这些机制可以对体积和界面行为进行可调控制,特别强调了NPs的尺寸和纵横比(0D、1D和2D填料)如何调节应力传递、运输途径和矩阵内的功能互联性。三种主要的NP掺入策略(即预合成的NP的物理混合,在固化的PDMS上原位合成,以及在未固化的基质中原位形成)在界面耦合,分散稳定性和处理可扩展性方面进行了严格的比较。特别关注界面工程、纳米填料形态和分层结构如何控制应力传递、声子传输、电荷渗透以及光学或表面响应。此外,还提出了一种性能设计前景,将界面设计和纳米填料形态与机械、热、电、光学、声学和润湿控制表面性能联系起来。这篇综述进一步严格审查了降低PDMS@NPs复合材料适用性的限制因素,包括性能退化、界面不稳定、有限的可回收性,以及在机械、热、光学和环境条件下的长期稳定性。概述了绿色填料合成、可回收PDMS矩阵、动态和分层界面以及依赖于形态的动态界面的预测建模等新兴方向。总之,这篇综述提供了一个全面和批判性的视角,PDMS@NPs复合材料作为下一代柔软、功能性和可持续的弹性体材料,为柔性电子、软机器人、生物医学设备和自适应涂层的进步开辟了新的途径。
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引用次数: 0
Micro-arc oxidation surface-modification of titanium alloys for biomedical applications: Mechanisms, advances, challenges, and prospects 生物医学用钛合金微弧氧化表面改性:机理、进展、挑战与展望
IF 4 1区 材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY Pub Date : 2026-01-10 DOI: 10.1016/j.pmatsci.2026.101654
Yifeng Yao , Zechuan Yi , Wei Juene Chong , Kaiyang Li , Qianli Huang , Yong Liu , Cuie Wen , Hong Wu
Titanium (Ti) and its alloys are widely used in biomedical implants owing to their excellent mechanical strength, corrosion resistance, and biocompatibility. However, their bioinertness, lack of antibacterial capability, poor tribological performance, and susceptibility to long-term corrosion all limit their clinical durability. Micro-arc oxidation (MAO) has emerged as a cost-effective surface-modification technique capable of addressing these challenges through producing ceramic-like coatings with tunable structural and functional features. The thickness, porosity, roughness, and phase composition of the coatings are strongly influenced by electrical parameters (e.g., voltage, current mode, frequency, duty cycle) and electrolyte composition (e.g., silicate-, phosphate-, and aluminate-based systems). These features establish critical structure–property relationships that underpin corrosion protection, tribological behaviour, and biological function. Although the intrinsic microstructure of MAO coatings provides partial functional improvement, enhancement is commonly achieved through dopants. Metallic ions, nanoparticles, ceramic oxides and carbides, carbon-based materials, transition-metal dichalcogenides, and bioactive molecules each provide specific benefits, including antibacterial activity, improved corrosion resistance, enhanced wear performance, and stimulation of osteogenic potential. More recently, co-doping strategies have attracted growing attention, offering synergistic effects for generation of multifunctional coatings. This review critically examines MAO coating-formation mechanisms and the influences of processing variables, with emphasis on dopant incorporation and associated structure–property relationships. Finally, perspectives are presented on future directions to accelerate the clinical translation of MAO-coated Ti implants.
钛(Ti)及其合金因其优异的机械强度、耐腐蚀性和生物相容性被广泛应用于生物医学植入物中。但其生物惰性、抗菌能力不足、摩擦学性能差、易长期腐蚀等缺点限制了其临床使用寿命。微弧氧化(MAO)已经成为一种具有成本效益的表面改性技术,能够通过生产具有可调结构和功能特征的类陶瓷涂层来解决这些挑战。镀层的厚度、孔隙度、粗糙度和相组成受电气参数(如电压、电流模式、频率、占空比)和电解质组成(如硅酸盐、磷酸盐和铝酸盐体系)的强烈影响。这些特征建立了关键的结构-性能关系,这些关系是防腐、摩擦学行为和生物功能的基础。虽然MAO涂层的固有微观结构提供了部分功能改善,但增强通常是通过掺杂剂实现的。金属离子、纳米颗粒、陶瓷氧化物和碳化物、碳基材料、过渡金属二硫族化合物和生物活性分子都具有特定的益处,包括抗菌活性、提高耐腐蚀性、增强磨损性能和刺激成骨潜能。近年来,共掺杂策略越来越受到人们的关注,为多功能涂层的生成提供了协同效应。本文综述了MAO涂层的形成机制和工艺变量的影响,重点是掺杂剂的掺入和相关的结构-性能关系。最后,展望了加快mao包被钛种植体临床转化的未来方向。
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引用次数: 0
Advances in electrochemical CO2 reduction to CO for enabling A sustainable energy economy 电化学CO2还原为CO以实现可持续能源经济的进展
IF 4 1区 材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY Pub Date : 2026-01-10 DOI: 10.1016/j.pmatsci.2026.101655
Allwin Sudhakaran , Divya Prasad , Manav Saxena , Akshaya K. Samal , Greeshma Gadikota , Arvind H. Jadhav
Tunable electrochemical conversion of CO2 to CO unlocks possibilities for distribution and on – demand production of carbonaceous fuels and chemicals. In this review article, the advances in energy- and material-efficient CO2 conversion to CO including the underlying catalyst design principles, including size, morphology, metal-support interactions; role of electrode compositions and morphologies, and electrolytes; and grain boundary densities are discussed. Specifically, the influence of catalysts bearing noble metals (e.g., Au, Ag) and base metal electrocatalysts (e.g., Zn, Fe, and Co) on the efficiency of CO2 conversion to CO are discussed. The influence of carbon-based materials such as heteroatom-doped carbon and carbon-based hybrids on the mechanisms, selectivity, and yields associated with CO2 conversion to CO is evaluated. In terms of energy consumption and techno-economics, conventional CO2-to-CO electrolysis requires approximately 5–8 kWh per kilogram of CO produced, corresponding to an electrical-to-chemical energy efficiency of 45–60%. Given that electricity price is the most significant factor determining the economic viability of this process, an increase of only 2 cents per kWh can raise the production cost of CO by approximately 25%. Consequently, the cost and energy efficiency of CO2-to-CO technology are directly linked to its competitiveness. The role of electrolytes including aqueous solutions, organic solutions, and ionic liquids on reaction efficiency, pH, anions, cations, organic additives, and proton donors on electrochemical conversion of CO2 to CO is critically reviewed. The scientific advances underpinning the development of scalable electrochemical devices for converting CO2 to CO are discussed in the context of scale – up and deployment.
s.
二氧化碳到一氧化碳的可调电化学转换为碳质燃料和化学品的分配和按需生产提供了可能性。本文综述了能源和材料高效的CO2转化为CO的进展,包括催化剂的设计原则,包括尺寸,形态,金属-载体相互作用;电极组成、形态和电解质的作用;并讨论了晶界密度。具体来说,讨论了含贵金属催化剂(如Au、Ag)和贱金属电催化剂(如Zn、Fe和Co)对CO2转化为Co效率的影响。研究了碳基材料(如杂原子掺杂碳和碳基杂化物)对CO2转化为CO的机理、选择性和产率的影响。在能源消耗和技术经济方面,传统的CO2-to-CO电解每生产一公斤CO大约需要5-8千瓦时,对应于45-60%的电化能源效率。考虑到电价是决定这一过程经济可行性的最重要因素,每千瓦时仅增加2美分就能使CO的生产成本提高约25%。因此,CO2-to-CO技术的成本和能源效率与其竞争力直接相关。电解质(包括水溶液、有机溶液和离子液体)对反应效率、pH值、阴离子、阳离子、有机添加剂和质子供体在CO2到CO的电化学转化中的作用进行了严格的审查。在扩大规模和部署的背景下,讨论了支持可扩展的电化学装置发展的科学进展,用于将CO2转化为CO。
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引用次数: 0
Advanced simulations from DFT to machine learning for solid-state hydrogen storage: fundamentals, progresses, challenges and perspectives 从DFT到机器学习的固态氢存储高级模拟:基础,进展,挑战和观点
IF 4 1区 材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY Pub Date : 2026-01-06 DOI: 10.1016/j.pmatsci.2025.101653
Shuling Chen , Mei Yang , Shaoyang Shen , Liuzhang Ouyang
Solid-state hydrogen storage represents a pivotal technology for enabling a safe and efficient hydrogen economy, yet its development is hindered by performance limitations and the high costs associated with experimental trial-and-error. Computational simulations have thus emerged as indispensable tools for elucidating atomic-scale mechanisms, predicting material properties, and accelerating the rational design. This review provides a systematic and critical analysis of the fundamental principles, recent progress, and application of multiscale simulation methodologies of solid-state hydrogen storage, from density functional theory and molecular dynamics to phase field, finite element analysis, Monte Carlo, and machine learning. We begin with a detailed overview of classifications, mechanisms, and key performance indicators. Then, we propose a structured classification of computational approaches optimized for solid-state hydrogen storage, comparing their respective strengths and limitations. Furthermore, we highlight the transformative potential of machine learning for high-throughput screening and predictive modelling. Finally, perspectives on future research directions are outlined, including the development of integrated multiscale frameworks, high-performance computing strategies, digital twin systems, and the establishment of standardized databases. This work underscores the critical role of computational simulations in overcoming the fundamental challenges of solid-state hydrogen storage and guiding the development of next-generation materials.
固态储氢是实现安全和高效氢经济的关键技术,但其发展受到性能限制和实验试错相关的高成本的阻碍。因此,计算模拟已成为阐明原子尺度机制、预测材料性质和加速合理设计的不可或缺的工具。本文从密度泛函理论和分子动力学到相场、有限元分析、蒙特卡罗和机器学习,对固态氢存储的基本原理、最新进展和多尺度模拟方法的应用进行了系统和批判性的分析。我们从分类、机制和关键性能指标的详细概述开始。然后,我们提出了固态储氢优化计算方法的结构化分类,比较了它们各自的优势和局限性。此外,我们强调了机器学习在高通量筛选和预测建模方面的变革潜力。最后,展望了未来的研究方向,包括集成多尺度框架的发展、高性能计算策略、数字孪生系统和标准化数据库的建立。这项工作强调了计算模拟在克服固态储氢的基本挑战和指导下一代材料发展方面的关键作用。
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引用次数: 0
Residual stress and distortion in fusion welding and fusion-based additive manufacturing: measurements, mechanisms and control strategies 熔焊和基于熔焊的增材制造中的残余应力和变形:测量、机制和控制策略
IF 4 1区 材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY Pub Date : 2026-01-05 DOI: 10.1016/j.pmatsci.2025.101651
T. DebRoy , K. Khan , T. Mukherjee , W. Zhang , J.A. Francis , A. De
Residual stress and distortion in welding and additive manufacturing are persistent challenges to the achievement of dimensional accuracy and the reliability of components. Residual stress, arising from temperature gradients, phase transformations, and mechanical constraints, can lead to cracking, warping, and fatigue degradation, particularly in low-ductility alloys. Since additive manufacturing is evolving rapidly, a comprehensive understanding of stress generation and distortion and their control is urgently needed. This paper is unique in its comprehensive evaluation of both experimental and computational approaches to residual stress management. It examines experimental techniques such as digital image correlation and synchrotron X-ray diffraction. The review evaluates numerical simulations and the insights gained from the use of physics-based models. It also explores emerging tools, including machine learning and surrogate modeling, for enhancing prediction accuracy and efficiency. Additionally, the development of models for rapid stress prediction addresses the computational inefficiencies of traditional finite element methods. It introduces calculation tools for comparing distortion susceptibility across processes and highlights open-source resources. This review also seeks to advance the field by identifying current knowledge gaps, especially in micro and other small-scale applications, and proposing future research directions.
焊接和增材制造中的残余应力和变形是实现零件尺寸精度和可靠性的持续挑战。由温度梯度、相变和机械约束引起的残余应力可能导致开裂、翘曲和疲劳退化,特别是在低延展性合金中。由于增材制造正在迅速发展,因此迫切需要全面了解应力产生和变形及其控制。本文的独特之处在于对残余应力管理的实验和计算方法进行了综合评价。它检查实验技术,如数字图像相关和同步加速器x射线衍射。这篇综述评估了数值模拟和从使用基于物理的模型中获得的见解。它还探讨了新兴工具,包括机器学习和代理建模,以提高预测的准确性和效率。此外,快速应力预测模型的发展解决了传统有限元方法计算效率低下的问题。它介绍了用于比较不同过程的失真敏感性的计算工具,并重点介绍了开源资源。本综述还试图通过确定当前的知识差距,特别是在微型和其他小规模应用方面的知识差距,并提出未来的研究方向,来推动该领域的发展
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引用次数: 0
Advancing sustainability: Eco-friendly materials for high-performance zinc-ion batteries 推进可持续发展:高性能锌离子电池的环保材料
IF 4 1区 材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY Pub Date : 2025-12-31 DOI: 10.1016/j.pmatsci.2025.101652
Fangbing Dong , Yifan Li , Qi Zhang , Zhengran Wang , Zhiwei Ni , Yuan Li , Baojuan Xi , Shenglin Xiong , Xuelei Tian , Jinkui Feng
Zinc-ion batteries (ZIBs) have emerged as a promising alternative to lithium-ion systems, owing to the inherent safety and cost-effectiveness of Earth-abundant zinc reserves. However, the use of toxic heavy metals and hazardous organic electrolytes in mainstream ZIBs leads to cross-media contamination and ecosystem-wide bioaccumulation risks throughout the battery lifecycle. Various eco-friendly materials have been explored to tackle the critical challenges associated with ZIBs while promoting environmental sustainability and maintaining high performance, including sustainable anode materials, aqueous electrolytes, biomass additives, and natural mineral-based electrode coatings. Herein, this review systematically analyzes the application of eco-friendly materials in ZIBs from four key perspectives: cathode, anode, electrolyte, and separator. Meanwhile, the challenges and future research directions for applying eco-friendly materials in ZIBs are evaluated. This review provides systematic insights into advancing ZIBs and related electrochemical energy storage technologies.
锌离子电池(zib)已成为锂离子系统的一种有前途的替代品,因为地球上丰富的锌储量具有固有的安全性和成本效益。然而,在主流ZIBs中使用有毒重金属和有害有机电解质会导致跨介质污染和整个生态系统的生物积累风险,贯穿电池的整个生命周期。在促进环境可持续性和保持高性能的同时,已经探索了各种环保材料来解决与ZIBs相关的关键挑战,包括可持续阳极材料、水性电解质、生物质添加剂和天然矿物基电极涂层。本文从阴极、阳极、电解液和隔膜四个方面系统分析了环保材料在ZIBs中的应用。同时,对生态材料在ZIBs中的应用面临的挑战和未来的研究方向进行了评价。本文综述了ZIBs和相关电化学储能技术的进展。
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引用次数: 0
Mechanics and bio-mimicking of wet adhesion in nature 自然界湿粘附的力学和生物模拟
IF 4 1区 材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY Pub Date : 2025-12-29 DOI: 10.1016/j.pmatsci.2025.101647
Yong Pang, Tao Liu
Achieving strong and reliable adhesion in wet environments remains a persistent challenge for biomedical, marine, and robotic applications. Many aquatic organisms have evolved specialized strategies to address this limitation, such as the collagen rich thread-plaque systems of marine mussels, the suction cups of octopuses, the capillary-driven toe pads of tree frogs, and the friction-enhancing attachment organ of Pomphorhynchus laevis. Inspired by these systems, researchers have developed bio-mimetic adhesives that combine chemical adhesion with mechanical design principles to perform effectively underwater or in wet conditions. This review surveys recent advances in experimental approaches for quantifying adhesion, with particular emphasis on traction force microscopy (TFM), and highlights the crucial role of substrate materials and tracking features in determining force resolution. TFM-compatible substrates, including polyacrylamide (PAA) hydrogels, polyethylene glycol (PEG) hydrogels, and polydimethylsiloxane (PDMS), are evaluated with respect to their tunable mechanics, fabrication methods, and application-specific suitability. Theoretical models, covering peel, tension, and shear for chemical adhesion, as well as interlocking and friction, suction, and capillarity mechanisms, are critically assessed to reveal their progress, limitations, and key parameters for predicting adhesion in complex environments. Bio-inspired applications are examined across biomedical adhesives, wearable devices, underwater grippers, and energy-harvesting platforms, emphasizing the multi-functionality enabled by hierarchical and adaptive designs. Finally, emerging opportunities in advanced force measurement techniques and the translation of biological principles into multifunctional technologies are outlined as pathways toward scalable, adaptive wet adhesives with broad technological impact. This work provides an integrative framework linking natural wet adhesion with engineered solutions and identifies future directions for materials innovation, experimental development, and real-world implementation.
对于生物医学、海洋和机器人应用来说,在潮湿环境中实现牢固可靠的粘附仍然是一个持续的挑战。许多水生生物已经进化出专门的策略来解决这一限制,例如海洋贻贝富含胶原蛋白的线斑系统,章鱼的吸盘,树蛙的毛细血管驱动的趾垫,以及Pomphorhynchus laevis的增强摩擦的附着器官。受这些系统的启发,研究人员开发了仿生粘合剂,将化学粘附与机械设计原理结合起来,在水下或潮湿条件下有效地发挥作用。本文综述了定量粘附实验方法的最新进展,特别强调了牵引力显微镜(TFM),并强调了衬底材料和跟踪特征在确定力分辨率方面的关键作用。tfm兼容的底物,包括聚丙烯酰胺(PAA)水凝胶、聚乙二醇(PEG)水凝胶和聚二甲基硅氧烷(PDMS),评估了它们的可调力学、制造方法和特定应用的适用性。理论模型,包括剥离,张力和剪切的化学粘附,以及联锁和摩擦,吸力和毛细机制,批判性地评估,以揭示其进展,局限性和关键参数预测在复杂环境中的粘附。生物灵感应用在生物医学粘合剂、可穿戴设备、水下抓手和能量收集平台上进行了研究,强调了分层和自适应设计所实现的多功能。最后,概述了先进的力测量技术和将生物学原理转化为多功能技术的新机会,这些都是通往具有广泛技术影响的可扩展、自适应湿粘合剂的途径。这项工作提供了一个将自然湿粘附与工程解决方案联系起来的综合框架,并确定了材料创新、实验开发和现实世界实施的未来方向。
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引用次数: 0
Recent advances and field-deployable applications of nanomaterial-based sensors for the targeted PFAS detection 靶向PFAS检测纳米材料传感器的最新进展和现场可部署应用
IF 4 1区 材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY Pub Date : 2025-12-29 DOI: 10.1016/j.pmatsci.2025.101650
Abdelmonaim Azzouz , Lamia Hejji , Ki-Hyun Kim
The persistence and bioaccumulative nature of per- and polyfluoroalkyl substances (PFAS) pose significant hazards to health and the environment. Consequently, the accurate detection of trace PFAS in complex environmental samples remains a major analytical hurdle. This review synthesizes recent advancements in nanomaterial-based sensing systems for PFAS, focusing on photonic, electrochemical, and optical sensing principles. To achieve scalable and field-deployable sensing systems, enormous efforts have been made to assess the suitability of a diverse range of nanomaterials, including plasmonic nanostructures, functionalized two-dimensional (2D) materials, metal–organic frameworks (MOFs), covalent organic frameworks (COFs), molecularly imprinted polymers (MIPs), hybrid nanocomposites, carbon dots, biodegradable materials, and metal/metal oxide nanoparticles. Particular emphasis has been placed on key sensor performance metrics, such as detection limits, selectivity, response time, and operational stability, as well as the underlying mechanisms of material–analyte interaction. The review also highlights recent progress in multi-modal sensing, surface functionalization, and scalable fabrication approaches. The discussion concludes by exploring the potential for these nanoplatform-based sensors to transition from laboratory research to practical applications in real-time environmental monitoring, on-site detection, and regulatory compliance.
全氟烷基和多氟烷基物质(PFAS)的持久性和生物蓄积性对健康和环境构成重大危害。因此,准确检测复杂环境样品中的痕量PFAS仍然是一个主要的分析障碍。本文综述了基于纳米材料的PFAS传感系统的最新进展,重点介绍了光子、电化学和光学传感原理。为了实现可扩展和可现场部署的传感系统,人们已经付出了巨大的努力来评估各种纳米材料的适用性,包括等离子体纳米结构、功能化二维(2D)材料、金属有机框架(mof)、共价有机框架(COFs)、分子印迹聚合物(MIPs)、混合纳米复合材料、碳点、可生物降解材料和金属/金属氧化物纳米颗粒。特别强调的是关键的传感器性能指标,如检测限、选择性、响应时间和操作稳定性,以及材料-分析物相互作用的潜在机制。综述还强调了多模态传感、表面功能化和可扩展制造方法的最新进展。讨论最后探讨了这些基于纳米平台的传感器从实验室研究过渡到实时环境监测、现场检测和法规遵从方面的实际应用的潜力。
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引用次数: 0
Stimuli-responsive graphene oxide composites: working mechanisms, design strategies, and applications 刺激响应氧化石墨烯复合材料:工作机制,设计策略和应用
IF 4 1区 材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY Pub Date : 2025-12-29 DOI: 10.1016/j.pmatsci.2025.101649
Kou Yang , Xueli Bi , Haibin Zhong , Juncheng Wang , Yanju Luan , Shushen Zheng , Daria Andreeva , Konstantin Novoselov , Shanqing Zhang
Stimuli-responsive graphene oxide (GO) composites have emerged as a frontier in smart materials research due to their tunable physicochemical properties and dynamic responsive capabilities to various stimuli, including physical stimuli (such as temperature, light, strain/pressure) and chemical stimuli (such as pH, water, moisture, and chemical species). The unique two-dimensional structure of GO, distinguished by its exceptional specific surface area and abundant oxygen-containing functional groups, provides an ideal platform for integrating diverse responsive moieties through covalent/non-covalent modification strategies. This review systematically summarizes the response mechanisms to these stimuli and examines recent advancements in tailoring GO-based composites with programmable responsiveness to environmental stimuli, including thermal, pressure, pH, humidity, and specific biochemical signals. By analyzing their evolving design strategies, we elucidate emerging applications in flexible sensors, photocatalysis, photo-electrocatalysis, ion/gas separation membranes, and environmental remediation technologies. We also envisage critical perspectives on future research and development directions of stimuli-responsive graphene oxides.
刺激响应氧化石墨烯(GO)复合材料由于其可调的物理化学特性和对各种刺激的动态响应能力而成为智能材料研究的前沿,包括物理刺激(如温度、光、应变/压力)和化学刺激(如pH、水、湿度和化学物质)。氧化石墨烯独特的二维结构,以其特殊的比表面积和丰富的含氧官能团为特征,为通过共价/非共价修饰策略整合各种响应基团提供了理想的平台。本文系统地总结了对这些刺激的响应机制,并研究了在定制具有可编程响应环境刺激(包括热、压力、pH、湿度和特定生化信号)的氧化石墨烯基复合材料方面的最新进展。通过分析它们不断发展的设计策略,我们阐明了它们在柔性传感器、光催化、光电催化、离子/气体分离膜和环境修复技术方面的新兴应用。我们还设想了对刺激响应的氧化石墨烯的未来研究和发展方向的关键观点。
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引用次数: 0
A holistic review of MOF-based solar-driven atmospheric water harvesting 基于mof的太阳能大气集水技术综述
IF 4 1区 材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY Pub Date : 2025-12-26 DOI: 10.1016/j.pmatsci.2025.101648
M. Arjmandi , M. Khayet , P. Horcajada
The growing global demand for clean water, particularly in arid and off-grid regions, has spurred intensive research into sustainable water generation technologies. Among them, solar-driven atmospheric water harvesting (SAWH) using metal–organic frameworks (MOFs) has emerged as a highly promising solution, owing to MOFs’ exceptional topological/compositional tunability, and high porosity/surface area. This review systematically explores the key material-level and system-level factors influencing SAWH performance. First, we discuss the fundamental requirements for effective water adsorption, including high water uptake at low relative humidity, steep adsorption isotherms, and rapid adsorption–desorption kinetics. We then analyze the photothermal properties critical to solar-triggered desorption and classify strategies to enhance light-to-heat conversion in MOF-based systems, such as bandgap tuning, framework functionalization, and MOF–composite formation. The stability of MOFs under humid conditions, a major limitation for long-term operation, is also critically examined, with a focus on hydrolytic degradation mechanisms and design strategies for robust frameworks. In addition, auxiliary considerations such as management of contaminants, and shaping methodologies for MOFs are addressed, alongside novel device architectures that enhance passive solar utilization. We highlight the evolution of passive SAWH devices, showcasing advances in structural design, material integration, and thermodynamic modeling that enable efficient, continuous, and scalable operation. By consolidating recent advances in MOF chemistry, photothermal engineering, and device optimization, this review provides a comprehensive roadmap for the future development of efficient, sustainable, and deployable SAWH systems.
全球对清洁水的需求日益增长,特别是在干旱和离网地区,促使对可持续水生产技术的深入研究。其中,利用金属有机框架(mof)的太阳能驱动大气集水(SAWH)已成为一种非常有前途的解决方案,因为mof具有优异的拓扑/成分可调性,以及高孔隙率/表面积。本综述系统地探讨了影响SAWH性能的关键材料级和系统级因素。首先,我们讨论了有效吸附水的基本要求,包括低相对湿度下的高吸水性、陡峭的吸附等温线和快速的吸附-解吸动力学。然后,我们分析了光热性质对太阳能触发解吸至关重要,并分类了基于mof的系统中增强光热转换的策略,如带隙调谐、框架功能化和mof复合材料的形成。mof在潮湿条件下的稳定性(长期运行的主要限制)也被严格审查,重点是水解降解机制和坚固框架的设计策略。此外,还讨论了诸如污染物管理和mof成型方法等辅助考虑因素,以及提高被动式太阳能利用率的新型设备架构。我们重点介绍了无源SAWH器件的发展,展示了结构设计、材料集成和热力学建模方面的进步,从而实现了高效、连续和可扩展的操作。通过整合MOF化学、光热工程和设备优化方面的最新进展,本综述为未来高效、可持续和可部署的SAWH系统的发展提供了一个全面的路线图。
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Progress in Materials Science
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