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Fatigue and damage tolerance performance of additively-manufactured titanium alloys for structural application: A comprehensive review 结构用增材钛合金的疲劳和损伤容限性能综述
IF 31.6 1区 材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY Pub Date : 2026-01-01 Epub Date: 2025-10-25 DOI: 10.1016/j.mser.2025.101135
Jianwen Liu , Kai Zhang , Michael J. Bermingham , Hamish L. Fraser , Peter Hodgson , Martin Heilmaier , Alberto Boretti , Yuman Zhu , Aijun Huang
Titanium (Ti) alloys have emerged as one of the most sought-after metallic materials for additive manufacturing (AM). This originates from the unparalleled synergy of AM's capability to produce intricate geometries and the superior mechanical properties and corrosion resistance inherent to Ti alloys. Despite these benefits, AM Ti alloys continue to face persistent challenges that hinder their in-service reliability and broader adoption. Unlike conventionally manufacturing, AM introduces unique microstructural features such as non-uniform residual stresses and inhomogeneous grain structures, which often result in pronounced variability in material properties. Crucially, this variability underscores an urgent need for thorough performance evaluation of AM-produced parts, especially for critical structural applications where safety and durability are paramount. Previous reviews have broadly addressed AM Ti alloys' static properties and general processing challenges. In contrast, this review takes a comprehensive approach to examine the dynamic performance aspects—specifically, fatigue and damage tolerance—which remain insufficiently summarized yet vital for real-world applications. It deepens into the underlying mechanisms governing these properties, emphasizing the influence of key defects (e.g., porosity, segregation) as well as microstructural characteristics such as grain morphology and residual stresses. Additionally, this work expands the discussion to assess the behavior of AM Ti alloys under extreme environmental conditions (high-temperature and cryogenic operations), which are increasing demand in the automotive and energy sectors. By providing a detailed evaluation of these critical aspects, this review aims to bridge existing knowledge gaps, offering actionable insights to refine AM Ti alloy processing and enhance their structural reliability for demanding applications.
钛(Ti)合金已成为增材制造(AM)中最受欢迎的金属材料之一。这源于AM生产复杂几何形状的能力以及钛合金固有的优越机械性能和耐腐蚀性的无与伦比的协同作用。尽管有这些优点,AM钛合金仍然面临着持续的挑战,阻碍了它们的使用可靠性和更广泛的应用。与传统制造不同,增材制造引入了独特的微观结构特征,如不均匀的残余应力和不均匀的晶粒结构,这通常会导致材料性能的显著变化。至关重要的是,这种可变性强调了对am生产部件进行全面性能评估的迫切需要,特别是对于安全性和耐久性至关重要的关键结构应用。以前的评论广泛地讨论了AM Ti合金的静态性能和一般的加工挑战。相比之下,这篇综述采用了一种全面的方法来研究动态性能方面,特别是疲劳和损伤容限,这些方面仍然没有得到充分的总结,但对实际应用至关重要。它深入到控制这些性能的潜在机制,强调关键缺陷(例如,孔隙度,偏析)以及微观结构特征(如晶粒形态和残余应力)的影响。此外,这项工作扩大了讨论范围,以评估AM Ti合金在极端环境条件下(高温和低温操作)的行为,这在汽车和能源部门的需求不断增加。通过对这些关键方面的详细评估,本综述旨在弥合现有的知识差距,提供可操作的见解,以改进AM钛合金的加工,并提高其结构可靠性,以满足苛刻的应用。
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引用次数: 0
Advances in oxygen-containing functional groups-modified hard carbon anodes for sodium-ion batteries 钠离子电池用含氧官能团改性硬碳阳极的研究进展
IF 31.6 1区 材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY Pub Date : 2026-01-01 Epub Date: 2025-11-05 DOI: 10.1016/j.mser.2025.101143
Yufei He, Da Liu, Qinyu Li, Zeyu Zhu, Renbing Wu
The incorporation of oxygen-containing functional groups (OFGs) into hard carbon (HC) has emerged as a key strategy to enhance its performance for sodium-ion batteries (SIBs). OFGs such as hydroxy, carbonyl, carboxy, and epoxy groups can effectively modulate the microstructure, surface characteristics, and electrochemical properties of HC. Nevertheless, the regulatory role of certain OFGs remains the subject of controversy, and there is a paucity of systematic summaries of their modulating mechanisms, which hinders efforts to regulate the microstructure of hard carbon. This review begins with the introduction of role of OFGs in the graphitization process, pore structure formation, defect configuration, and solid electrolyte interface regulation (SEI) with an emphasis on the relationship between the microstructure and the sodium storage performances of HC anodes. Discussion is then made on various origins and strategies to modulate OFGs, including the selection of precursor, pre- and post-treatment, and carbonization process. Finally, this review highlights the significance of OFGs in HC anodes and outlines the associated challenges and opportunities for future development.
在硬碳(HC)中加入含氧官能团(OFGs)已成为提高其钠离子电池(sib)性能的关键策略。羟基、羰基、羧基和环氧基等OFGs可以有效地调节HC的微观结构、表面特征和电化学性能。然而,某些OFGs的调节作用仍然存在争议,并且缺乏对其调节机制的系统总结,这阻碍了对硬碳微观结构的调节。本文首先介绍了OFGs在石墨化过程、孔隙结构形成、缺陷形态和固体电解质界面调节(SEI)中的作用,重点介绍了HC阳极的微观结构与储钠性能之间的关系。然后讨论了各种来源和调制OFGs的策略,包括前驱体的选择、预处理和后处理以及碳化过程。最后,本综述强调了ofg在HC阳极中的重要性,并概述了未来发展的相关挑战和机遇。
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引用次数: 0
β–phase hydroxide-steered inner-hosted metal sites for exceptional hydrogen production β相氢氧化物导向内载金属位点,用于特殊的氢气生产
IF 31.6 1区 材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY Pub Date : 2026-01-01 Epub Date: 2025-10-28 DOI: 10.1016/j.mser.2025.101130
Jitendra N. Tiwari , Muhammad Umer , Gokul Bhaskaran , Matthias Vandichel , Min Gyu Kim , Hionsuck Baik , Yun Suk Huh , Young-Kyu Han
High-density metal single-atom catalysts (M–SACs) tend to aggregate during synthesis and electrocatalytic processes. To prevent this aggregation, it is essential to develop ultra-low-density M–SACs that exhibit high catalytic activity and stability, which is highly challenging. Additionally, M–SACs maximize the utilization of the active sites and thus increase the atomic efficiency for electrocatalysis. Here, we present the β–phase and α–phase hydroxide-functionalized metals [β–Ni(OH)2 and α–Co(OH)2] as sacrificial templates to produce various M–SACs (M = Pt, Ir, Pd, and Ru) embedded in porous nitrogen-bonded carbon sheets, where the metal hydroxides interact strongly with dicyandiamide–metal complexes, effectively preventing the aggregation of isolated metal atoms. The β–Ni(OH)2-driven platinum variant catalyst (Pt−0.38 wt%:β–PtSAs/S800; Pt−0.54 wt%:β–PtSAs/S850) demonstrates zero-onset potential, ultra-low overpotential (15 mV at 10 mA cm−2), exceptional stability over 10 days of operation, and unprecedented turnover frequencies of 3.68/3.38 H2 s−1/Pt-site, which are 78/72 times higher than that of 20 wt%Pt/C (0.047 H2 s−1/Pt-site) for the hydrogen evolution reaction (HER). Notably, β–PtSAs/S850-based proton-exchange-membrane water electrolysis (PEMWE) achieves a current density of 3.0 A cm−2 at a low voltage of 1.75 Vcell@80 ℃ [exceeding the Department of Energy 2026 target], along with stable operation for over 200 h at a current density of 1.0 A cm−2. Experimental observation and theoretical calculations indicate that the inner-hosted PtN2 moieties remain intact within the graphitic sheets due to their lower formation energy under acidic conditions, effectively reducing the overall HER energy barriers and showcasing the true active sites responsible for the remarkable catalytic activity.
高密度金属单原子催化剂(M-SACs)在合成和电催化过程中容易聚集。为了防止这种聚集,必须开发具有高催化活性和稳定性的超低密度M-SACs,这是一项极具挑战性的工作。此外,M-SACs最大限度地利用了活性位点,从而提高了电催化的原子效率。在这里,我们提出了β -相和α -相氢氧化物功能化金属[β-Ni (OH)2和α-Co (OH)2]作为牺牲模板,在多孔氮键碳片上嵌入各种M - sacs (M = Pt, Ir, Pd和Ru),其中金属氢氧化物与双胺二胺金属配合物强烈相互作用,有效地阻止了孤立金属原子的聚集。β-Ni (OH)2驱动的铂变体催化剂(Pt - 0.38 wt%: β-PtSAs /S800; Pt- 0.54 wt%: β-PtSAs /S850)表现出零电位、超低过电位(10 mA cm - 2时15 mV)、10天运行的优异稳定性,以及前所未有的3.68/3.38 H2 s - 1/Pt-site的换氢频率,比20 wt%Pt/C(0.047 H2 s - 1/Pt-site)高78/72倍。值得注意的是,基于β-PtSAs / s850的质子交换膜电解(PEMWE)在1.75 Vcell@80℃的低电压下实现了3.0 a cm - 2的电流密度[超过了美国能源部2026年的目标],并在1.0 a cm - 2的电流密度下稳定运行超过200 小时。实验观察和理论计算表明,在酸性条件下,内部承载的PtN2部分由于其较低的地层能量而在石墨薄片中保持完整,有效地降低了整体HER能垒,并显示出真正的活性位点,从而具有显著的催化活性。
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引用次数: 0
Unresolved controversies in perovskite-based antiferroelectrics: Fundamentals and frontiers 钙钛矿基反铁电体未解决的争议:基础和前沿
IF 31.6 1区 材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY Pub Date : 2026-01-01 Epub Date: 2025-09-22 DOI: 10.1016/j.mser.2025.101121
Tianfu Zhang , Yangyang Si
Antiferroelectrics have emerged as a critical material in condensed matter physics, holding transformative potential for next-generation technologies including high energy-density capacitor, electromechanical systems, and electric field-modulated thermal switching devices. Since the theoretical postulation of antiferroelectricity and the identification of PbZrO3 as the first prototypical antiferroelectric, this field has evolved through seven decades of interdisciplinary research. Nevertheless, enduring ambiguities in fundamental principles continue to impede both theoretical comprehension and technological utilization. In this review, we revisit the intricate landscape of antiferroelectric fundamentals, examining prevailing debates and unresolved controversies. Moreover, we critically address the ambiguous definitions of antiferroelectricity, structural complexities, the elusive origins, and the intricate mechanisms underlying phase transitions. By integrating historical context with recent experimental and theoretical progress, this review aims to stimulate innovative solutions to long-standing questions, thereby bridging the gap between fundamental antiferroelectric phenomena and their practical applications in energy storage, electronic devices, and quantum technologies.
反铁电体已经成为凝聚态物理中的一种关键材料,在下一代技术(包括高能量密度电容器、机电系统和电场调制热开关器件)中具有变革潜力。自从反铁电性的理论假设和PbZrO3作为第一个原型反铁电性的确定以来,这一领域已经发展了七十年的跨学科研究。然而,基本原则的长期含糊不清继续阻碍理论理解和技术利用。在这篇综述中,我们回顾了反铁电基本原理的复杂景观,检查了流行的辩论和未解决的争议。此外,我们批判性地解决了反铁电性的模糊定义、结构复杂性、难以捉摸的起源以及相变背后的复杂机制。通过将历史背景与最近的实验和理论进展相结合,本综述旨在激发长期存在的问题的创新解决方案,从而弥合基本反铁电现象与其在能量存储,电子器件和量子技术中的实际应用之间的差距。
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引用次数: 0
Bioinspired C/C composites with long-duration ablation resistance for thermal protection up to 2400 °C 生物启发C/C复合材料,长时间抗烧蚀,热保护高达2400 °C
IF 31.6 1区 材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY Pub Date : 2026-01-01 Epub Date: 2025-12-06 DOI: 10.1016/j.mser.2025.101157
Yi Zhang , Xiaoshuang Wang , Bing Liu , Menglin Zhang , Qiangang Fu , Xuemin Yin , Hejun Li
The development of ultrahigh-temperature thermal protection materials (TPMs) with long-term ablation resistance is crucial for high-speed aircraft, where surface heat accumulation and protective layer instability remain key limiting factors for service lifetime. Ultrahigh-temperature TPMs face a critical challenge in balancing active cooling and passive protection during long-term servicing. Inspired by human skin’s thermoregulation and tree rings’ functional partitioning, we present a dual-biomimetic structural design strategy for carbon/carbon (C/C) composites that overcomes this limitation. Through a novel selective-area reactive melt infiltration method and design of thermal conductive rods, we engineered bioinspired C/C composites featuring: (1) high-thermal-conductivity Cu channels mimicking hair shafts for enhanced heat dissipation, (2) a functional partitioning architecture effectively mitigating thermal stress with an ablation-resistant ZrC-Cu core and sweat-cooling SiC-Cu-CuxSiy periphery, and (3) highly stable oxide protective film at ablation surface. This dual-biomimetic structure design synergistically reduces surface heat accumulation and surface temperature (active cooling via heat conduction and dissipation), and promotes a formation of La-stabilized oxide films (relying on regulating the phase transition), enabling the bioinspired C/C composites to achieve thermal protection for 720 s with negligible ablation damage at a high heat flux of 4.18 MW/m2 and a temperature exceeding 2400 °C, which surpass most reported C/C-based TPMs. Our work establishes a new paradigm for designing long-duration TPMs through bioinspired multifunctional integration, with broad implications for aerospace applications and extreme environment materials.
开发具有长期抗烧蚀性能的超高温热防护材料(TPMs)对于高速飞机来说至关重要,因为飞机表面热积累和保护层不稳定仍然是限制飞机使用寿命的关键因素。在长期使用中,超高温TPMs面临着平衡主动冷却和被动保护的关键挑战。受人体皮肤的温度调节和树木年轮的功能划分的启发,我们提出了一种克服这一限制的碳/碳(C/C)复合材料的双仿生结构设计策略。通过一种新的选择性区域反应熔体渗透方法和导热棒的设计,我们设计了仿生C/C复合材料,其特点是:(1)模拟毛轴的高导热Cu通道增强散热;(2)功能分区结构有效减轻热应力,具有耐烧蚀的ZrC-Cu核心和汗液冷却的SiC-Cu-CuxSiy外围;(3)烧蚀表面高度稳定的氧化物保护膜。这种双仿生结构设计协同降低了表面热量积累和表面温度(通过热传导和散热进行主动冷却),并促进了la稳定氧化物膜的形成(依赖于调节相变),使仿生C/C复合材料在4.18 MW/m2的高热流和超过2400 °C的温度下实现720 s的热保护,而烧蚀损伤可以忽略,这超过了大多数基于C/C的TPMs。我们的工作建立了一个通过生物启发多功能集成设计长寿命TPMs的新范例,对航空航天应用和极端环境材料具有广泛的影响。
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引用次数: 0
Advances in stimuli-responsive polymers for biomedical and environmental applications 生物医学和环境应用中刺激响应聚合物的研究进展
IF 31.6 1区 材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY Pub Date : 2026-01-01 Epub Date: 2025-11-01 DOI: 10.1016/j.mser.2025.101140
Tae Woong Kang , Kinam Park , Moon Suk Kim
Stimuli-responsive polymers (SRPs), also known as “smart polymers,” have transformed biomedical and environmental applications by enabling dynamic and adaptable material properties. These polymers respond to external stimuli such as pH, temperature, light, and magnetic fields, allowing precise control over drug delivery, biosensing, pollutant removal, and sustainable material design. This review explores the fundamental principles behind SRP design, their response mechanisms, and cutting-edge fabrication strategies, highlighting their growing impact across multiple disciplines. In biomedicine, SRPs are advancing site-specific drug release, injectable scaffolds for regenerative therapies, and real-time biosensing, contributing to the evolution of personalized medicine. In environmental science, they play a crucial role in water purification, heavy metal adsorption, and biodegradable materials, offering innovative solutions to pressing sustainability challenges. Unlike previous reviews, this work emphasizes the latest breakthroughs in modular synthesis, hybrid nanostructuring, and 4D printing with a particular focus on the advances achieved over the past decade, while addressing key challenges such as scalability, stability, and cost-effectiveness. By integrating molecular engineering with green chemistry and state-of-the-art fabrication techniques, this review provides a forward-looking perspective on the future of SRPs in medicine, industry, and environmental sustainability. As research continues to advance, SRPs are set to redefine next-generation solutions for healthcare, ecological preservation, and smart material applications.
刺激响应聚合物(SRPs),也被称为“智能聚合物”,通过实现动态和适应性材料特性,已经改变了生物医学和环境应用。这些聚合物响应外部刺激,如pH值、温度、光和磁场,允许精确控制药物输送、生物传感、污染物去除和可持续材料设计。这篇综述探讨了SRP设计背后的基本原理,它们的反应机制和尖端的制造策略,突出了它们在多个学科中日益增长的影响。在生物医学领域,srp正在推进位点特异性药物释放、再生治疗的可注射支架和实时生物传感,为个性化医疗的发展做出贡献。在环境科学中,它们在水净化、重金属吸附和可生物降解材料方面发挥着至关重要的作用,为紧迫的可持续发展挑战提供了创新的解决方案。与之前的评论不同,这项工作强调了模块化合成,混合纳米结构和4D打印的最新突破,特别关注过去十年取得的进展,同时解决了可扩展性,稳定性和成本效益等关键挑战。通过将分子工程与绿色化学和最先进的制造技术相结合,本文综述了SRPs在医学、工业和环境可持续性方面的前瞻性前景。随着研究的不断推进,srp将重新定义医疗保健、生态保护和智能材料应用的下一代解决方案。
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引用次数: 0
Recent progress in the synthesis, scaling, processing and technoeconomic analysis of metal-organic frameworks towards industrial applications 面向工业应用的金属有机骨架的合成、标度、加工和技术经济分析的最新进展
IF 31.6 1区 材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY Pub Date : 2026-01-01 Epub Date: 2025-09-29 DOI: 10.1016/j.mser.2025.101123
Zi Li , Xinyu Yang , Chuanzhi Ju , Tian Tian , Jingwei Hou , Zhigang Hu , Jianxin Zou
Economical and efficient synthesis and processing technologies are essential for industrial-level applications of metal-organic frameworks (MOFs). To bridge the gap between lab-scale synthesis and commercial applications, we here provide a comprehensive and holistic review on the challenges of transitioning MOF materials from the laboratory agent to commercial products, and further to industrial-scale applications, with an emphasis on existing approaches and technologies for the large-scale synthesis and processing and technoeconomic feasibility of MOFs. We also pinpoint the fundamental principles on the metal-ligand reaction mechanism and elaborate on their impact on MOF synthesis and stability. In addition, novel synthesis mechanisms and processing methods and technologies are covered, such as electron-beam radiation method, melt-quench method, sol-gel method, liquid-phase sintering technology, monolithic technology, plasma/laser-assisted technology, etc. In particular, the importance of AI in the design, fabrication and processing of MOFs is highlignted in the current milieu of AI+materials paradigm. We thus aim to provide in-depth insights into the design and development of efficient and versatile synthetic and processing approaches and technologies to promote practical MOF-based applications in addressing the current global energy and environment challenges.
经济高效的合成和加工技术是金属有机骨架材料工业化应用的基础。为了弥合实验室规模合成和商业应用之间的差距,我们在这里提供了一个全面和全面的回顾,从实验室试剂过渡到商业产品,进一步到工业规模应用的MOF材料的挑战,重点是现有的方法和技术的大规模合成和加工和MOF的技术经济可行性。我们还指出了金属配体反应机理的基本原理,并阐述了它们对MOF合成和稳定性的影响。此外,还介绍了新的合成机理和加工方法和技术,如电子束辐射法、熔融淬火法、溶胶-凝胶法、液相烧结技术、单片技术、等离子体/激光辅助技术等。特别是在当前人工智能+材料范式的背景下,人工智能在mof设计、制造和加工中的重要性得到了突出体现。因此,我们的目标是为高效和通用的合成和加工方法和技术的设计和开发提供深入的见解,以促进基于mof的实际应用,以应对当前的全球能源和环境挑战。
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引用次数: 0
Achieving high-performance bio-inspired perovskite solar cells via molecular-level dual-function interface engineering 通过分子级双功能界面工程实现高性能生物启发钙钛矿太阳能电池
IF 31.6 1区 材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY Pub Date : 2026-01-01 Epub Date: 2025-10-06 DOI: 10.1016/j.mser.2025.101129
Ziyan Liu , Qingyuan Zhao , Yuting Song , Shin-ichi Sasaki , Ayumi Ishii , Naoyuki Shibayama , Xianzhao Wang , Masashi Ikegami , Nao Saito , Shengnan Duan , Hitoshi Tamiaki , Tsutomu Miyasaka , Xiao-Feng Wang
The performance of inverted perovskite solar cells (PSCs) employing bio-inspired chlorophyll (Chl)-based hole transport materials (HTMs) is frequently limited by interfacial losses and non-radiative recombination. We address this challenge through a molecular-level interface engineering strategy, implementing a novel dopant-free, dual-function polymeric HTM. Synthesized via electrochemical polymerization, the polymeric copper serinyl pyropheophorbide-a features an extended π-conjugated framework for efficient hole extraction. Subsequent surface modification with trifluoroacetate anions at the amino acid terminals generates Lewis base sites that coordinate with undercoordinated Pb2 + ions at the HTM/perovskite interface, enabling simultaneous defect passivation and crystallization control. The optimized devices achieve a champion power conversion efficiency (PCE) of 24.5 %—a record for Chl-based HTMs—with an exceptional fill factor of 85.3 %. Crucially, these PSCs demonstrate outstanding operational stability, retaining 93.2 % of their initial PCE after 2700 h under ambient conditions (unencapsulated). By elucidating the structure-property-performance relationships, this work not only underscores the significant potential of dopant-free Chl-derived materials for next-generation photovoltaics but also provides generalizable insights into multifunctional interfacial modification for highly efficient and stable perovskite devices.
采用生物启发叶绿素(Chl)基空穴传输材料(HTMs)的倒置钙钛矿太阳能电池(PSCs)的性能经常受到界面损失和非辐射重组的限制。我们通过分子级界面工程策略解决了这一挑战,实现了一种新型的无掺杂、双功能聚合物HTM。通过电化学聚合合成的丝氨酸基焦磷铜-a具有扩展π共轭框架,可有效提取空穴。随后在氨基酸末端用三氟乙酸阴离子进行表面修饰,生成刘易斯碱基位点,与HTM/钙钛矿界面上的欠配位Pb2 +离子配合,同时实现缺陷钝化和结晶控制。优化后的器件实现了24.5% %的冠军功率转换效率(PCE) -这是基于chl的html的记录-具有85.3 %的特殊填充因子。至关重要的是,这些psc表现出出色的操作稳定性,在环境条件下(未封装)2700 h后,其初始PCE保持在93.2 %。通过阐明结构-性能-性能关系,这项工作不仅强调了无掺杂chl衍生材料在下一代光伏电池中的巨大潜力,而且为高效稳定的钙钛矿器件的多功能界面修饰提供了可推广的见解。
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引用次数: 0
Cutting-edge strategies for efficient low-concentration CO2 photoreduction 高效低浓度CO2光还原的前沿策略
IF 31.6 1区 材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY Pub Date : 2026-01-01 Epub Date: 2025-10-18 DOI: 10.1016/j.mser.2025.101136
Huilin Hou, Dongjiang Yang, Weiyou Yang
Photocatalytic CO2 reduction offers a promising route to address climate change while producing sustainable solar fuels. However, achieving efficient conversion under low CO2 concentrations, especially at atmospheric levels near 400 ppm, remains highly challenging due to sluggish kinetics, limited accessibility of active sites, and complex multi-electron pathways. This review critically evaluates recent advances in photocatalyst design and application-oriented strategies that seek to overcome these limitations. High-surface-area frameworks such as MOFs and COFs, defect-engineered nanosheets, and conjugated porous polymers have been developed to enhance CO2 adsorption and charge carrier dynamics. Additional strategies to improve light harvesting and charge separation include noble metal modification and heterojunction construction. Application-oriented approaches are also highlighted, including the integration of photocatalysis with direct air capture and the design of catalysts that maintain activity in the presence of O2, SOX, and other impurities. Despite progress, CO remains the dominant product under dilute conditions, while selective formation of C2+ products remains rare and energy intensive. Future progress will require rationally designed hierarchical architectures, multifunctional catalysts, and in situ mechanistic investigations. Artificial intelligence and high-throughput screening are emerging as powerful tools for accelerating discovery. Together, these strategies define a roadmap toward scalable CO2 conversion technologies under realistic conditions.
光催化二氧化碳还原为解决气候变化问题提供了一条有希望的途径,同时生产可持续的太阳能燃料。然而,在低二氧化碳浓度下,特别是在大气浓度接近400 ppm时,由于动力学缓慢,活性位点的可及性有限,以及复杂的多电子途径,实现高效转化仍然是极具挑战性的。这篇综述批判性地评估了光催化剂设计和面向应用的策略的最新进展,以寻求克服这些限制。高表面积框架,如mof和COFs、缺陷工程纳米片和共轭多孔聚合物已经被开发出来,以增强二氧化碳吸附和载流子动力学。改善光收集和电荷分离的其他策略包括贵金属修饰和异质结的构建。应用导向的方法也得到了强调,包括光催化与直接空气捕获的集成,以及在O2, SOX和其他杂质存在下保持活性的催化剂的设计。尽管取得了进展,但CO仍然是稀条件下的主导产物,而C2+产物的选择性形成仍然很少,而且是能源密集型的。未来的进展将需要合理设计分层结构、多功能催化剂和原位机理研究。人工智能和高通量筛选正在成为加速发现的有力工具。总之,这些策略定义了在现实条件下可扩展的二氧化碳转换技术的路线图。
{"title":"Cutting-edge strategies for efficient low-concentration CO2 photoreduction","authors":"Huilin Hou,&nbsp;Dongjiang Yang,&nbsp;Weiyou Yang","doi":"10.1016/j.mser.2025.101136","DOIUrl":"10.1016/j.mser.2025.101136","url":null,"abstract":"<div><div>Photocatalytic CO<sub>2</sub> reduction offers a promising route to address climate change while producing sustainable solar fuels. However, achieving efficient conversion under low CO<sub>2</sub> concentrations, especially at atmospheric levels near 400 ppm, remains highly challenging due to sluggish kinetics, limited accessibility of active sites, and complex multi-electron pathways. This review critically evaluates recent advances in photocatalyst design and application-oriented strategies that seek to overcome these limitations. High-surface-area frameworks such as MOFs and COFs, defect-engineered nanosheets, and conjugated porous polymers have been developed to enhance CO<sub>2</sub> adsorption and charge carrier dynamics. Additional strategies to improve light harvesting and charge separation include noble metal modification and heterojunction construction. Application-oriented approaches are also highlighted, including the integration of photocatalysis with direct air capture and the design of catalysts that maintain activity in the presence of O<sub>2</sub>, SO<sub>X</sub>, and other impurities. Despite progress, CO remains the dominant product under dilute conditions, while selective formation of C<sub>2+</sub> products remains rare and energy intensive. Future progress will require rationally designed hierarchical architectures, multifunctional catalysts, and in situ mechanistic investigations. Artificial intelligence and high-throughput screening are emerging as powerful tools for accelerating discovery. Together, these strategies define a roadmap toward scalable CO<sub>2</sub> conversion technologies under realistic conditions.</div></div>","PeriodicalId":386,"journal":{"name":"Materials Science and Engineering: R: Reports","volume":"167 ","pages":"Article 101136"},"PeriodicalIF":31.6,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145332894","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
Humidity/photothermal dual-responsive TpPa-SO3H/Ag@MXene actuator for intelligent thermal management 湿度/光热双响应TpPa-SO3H/Ag@MXene智能热管理执行器
IF 31.6 1区 材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY Pub Date : 2026-01-01 Epub Date: 2025-10-09 DOI: 10.1016/j.mser.2025.101125
Song Luo , Xiaohe Tian , Li Pan , Runhua Zhou , Shunda Zhu , Zuyi Yan , Kui Rao , Bo Liu , Shaofei Wang , Hong Wu
With the increasing severity of urban heat islands, personal thermal management (PTM) has emerged as a critical solution for maintaining human thermophysiological comfort in dynamic environments. Traditional air conditioning systems are energy-intensive and lack individualized control, highlighting the need for efficient, low-energy PTM strategies. Current PTM materials often operate in static modes, limiting their adaptability to varying conditions. To overcome this, we developed a Janus-structured humidity-photothermal actuator (TpPa-SO₃H/Ag@M) by integrating a TpPa-SO₃H covalent organic framework (COF) for rapid water transport and a silver nanoparticle (AgNP)-intercalated MXene (Ag@M) for humidity gradient formation and enhanced photothermal conversion. The COF layer facilitates moisture accumulation, while the Ag@M laminar structure delays water diffusion, enabling a sensitive humidity response. AgNPs expand the MXene interlayer spacing, improving water uptake and response efficiency by triple compared to initial TpPa-SO₃H/MXene systems, while also preventing structural collapse during cycling. Additionally, AgNPs enables strong solar absorption, boosting photothermal performance. Under combined humidity and light stimulation, the Janus actuator exhibits dynamic bending, enabling autonomous sweat evaporation and body temperature regulation without external energy input. This dual-responsive design offers a promising approach for adaptive, energy-efficient PTM in extreme environments.
随着城市热岛的日益严重,个人热管理(PTM)已成为动态环境中维持人体热生理舒适的关键解决方案。传统的空调系统是能源密集型的,缺乏个性化的控制,突出了对高效、低能耗的PTM策略的需求。目前的PTM材料通常在静态模式下工作,限制了它们对变化条件的适应性。为了克服这一问题,我们开发了一种jans结构的湿热执行器(TpPa-SO₃H/Ag@M),通过集成用于快速水输送的TpPa-SO₃H共价有机框架(COF)和用于形成湿度梯度和增强光热转换的银纳米颗粒(AgNP)嵌入MXene (Ag@M)。COF层有利于水分积累,而Ag@M层流结构则延迟水分扩散,从而实现敏感的湿度响应。AgNPs扩大了MXene层间距,与最初的TpPa-SO₃H/MXene系统相比,吸水率和响应效率提高了三倍,同时还防止了循环过程中的结构坍塌。此外,AgNPs具有很强的太阳能吸收能力,提高了光热性能。在湿度和光线的联合刺激下,Janus致动器表现出动态弯曲,无需外部能量输入即可实现自主汗液蒸发和体温调节。这种双响应设计为极端环境下的自适应节能PTM提供了一种有前途的方法。
{"title":"Humidity/photothermal dual-responsive TpPa-SO3H/Ag@MXene actuator for intelligent thermal management","authors":"Song Luo ,&nbsp;Xiaohe Tian ,&nbsp;Li Pan ,&nbsp;Runhua Zhou ,&nbsp;Shunda Zhu ,&nbsp;Zuyi Yan ,&nbsp;Kui Rao ,&nbsp;Bo Liu ,&nbsp;Shaofei Wang ,&nbsp;Hong Wu","doi":"10.1016/j.mser.2025.101125","DOIUrl":"10.1016/j.mser.2025.101125","url":null,"abstract":"<div><div>With the increasing severity of urban heat islands, personal thermal management (PTM) has emerged as a critical solution for maintaining human thermophysiological comfort in dynamic environments. Traditional air conditioning systems are energy-intensive and lack individualized control, highlighting the need for efficient, low-energy PTM strategies. Current PTM materials often operate in static modes, limiting their adaptability to varying conditions. To overcome this, we developed a Janus-structured humidity-photothermal actuator (TpPa-SO₃H/Ag@M) by integrating a TpPa-SO₃H covalent organic framework (COF) for rapid water transport and a silver nanoparticle (AgNP)-intercalated MXene (Ag@M) for humidity gradient formation and enhanced photothermal conversion. The COF layer facilitates moisture accumulation, while the Ag@M laminar structure delays water diffusion, enabling a sensitive humidity response. AgNPs expand the MXene interlayer spacing, improving water uptake and response efficiency by triple compared to initial TpPa-SO₃H/MXene systems, while also preventing structural collapse during cycling. Additionally, AgNPs enables strong solar absorption, boosting photothermal performance. Under combined humidity and light stimulation, the Janus actuator exhibits dynamic bending, enabling autonomous sweat evaporation and body temperature regulation without external energy input. This dual-responsive design offers a promising approach for adaptive, energy-efficient PTM in extreme environments.</div></div>","PeriodicalId":386,"journal":{"name":"Materials Science and Engineering: R: Reports","volume":"167 ","pages":"Article 101125"},"PeriodicalIF":31.6,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145262649","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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Materials Science and Engineering: R: Reports
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