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Metal atomic clusters for oxygen-bearing materials: from adversity comes opportunity 含氧材料的金属原子团簇:逆境带来机遇
IF 7.7 2区 材料科学
Science China Materials Pub Date : 2026-08-19 DOI: 10.1007/s40843-026-4287-1
Xin Zhu  (, ), Maodong Kang  (, ), Zhen Zhang  (, ), Yunting Li  (, ), Liu Fang  (, ), Jun Wang  (, ), Baode Sun  (, ), Fengqi Song  (, )
{"title":"Metal atomic clusters for oxygen-bearing materials: from adversity comes opportunity","authors":"Xin Zhu \u0000 (,&nbsp;),&nbsp;Maodong Kang \u0000 (,&nbsp;),&nbsp;Zhen Zhang \u0000 (,&nbsp;),&nbsp;Yunting Li \u0000 (,&nbsp;),&nbsp;Liu Fang \u0000 (,&nbsp;),&nbsp;Jun Wang \u0000 (,&nbsp;),&nbsp;Baode Sun \u0000 (,&nbsp;),&nbsp;Fengqi Song \u0000 (,&nbsp;)","doi":"10.1007/s40843-026-4287-1","DOIUrl":"10.1007/s40843-026-4287-1","url":null,"abstract":"<div><p>Atomic-level manufacturing receives widespread attention in different industries as a frontier technology enabling materials to achieve ultimate performance. To advance the interdisciplinary integration of atomic-level manufacturing processes and products, this study explores the potential applications and critical scientific issues of metal atomic clusters. Metal atomic clusters are predominantly utilized in catalysis, but their extremely strong intrinsic instability imposes long-standing fundamental challenges on their practical applications, including low yield, inconsistent size and structure, and high susceptibility to agglomeration, oxidation, and sintering. From adversity comes opportunity; we pioneer a novel concept that employs oxidized metal atomic clusters as dopants in oxygen-bearing materials (e.g., oxide dispersion strengthened (ODS) alloy, oxide-based cermet, and toughening ceramic). Taking ODS alloy as the proof-of-concept, Ni-NiO coupled cluster-strengthened metallic Ni exhibits finer grains, a larger proportion of low-angle grain boundaries, higher geometrically necessary dislocation density, and achieves a 38% enhancement in Vickers hardness. To further advance this novel concept, four critical scientific issues require urgent resolution: oxidation control, disaggregation and dispersion, effectiveness comparison, and physicochemical behaviors and mechanisms.\u0000</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":773,"journal":{"name":"Science China Materials","volume":"69 10","pages":"6231 - 6238"},"PeriodicalIF":7.7,"publicationDate":"2026-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149098857","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
Lattice distortion effect in high entropy thermoelectric materials: mechanisms and optimization strategies 高熵热电材料中的晶格畸变效应:机理与优化策略
IF 7.7 2区 材料科学
Science China Materials Pub Date : 2026-08-14 DOI: 10.1007/s40843-026-4205-8
Wenyu Zhang  (, ), Chang Liu  (, ), Zhifang Zhou  (, ), Yuan-Hua Lin  (, )
{"title":"Lattice distortion effect in high entropy thermoelectric materials: mechanisms and optimization strategies","authors":"Wenyu Zhang \u0000 (,&nbsp;),&nbsp;Chang Liu \u0000 (,&nbsp;),&nbsp;Zhifang Zhou \u0000 (,&nbsp;),&nbsp;Yuan-Hua Lin \u0000 (,&nbsp;)","doi":"10.1007/s40843-026-4205-8","DOIUrl":"10.1007/s40843-026-4205-8","url":null,"abstract":"<p>在全球能源危机与环保技术日益受到重视的背景下, 热电材料因能实现热能与电能的直接转换而成为研究热点. 近年来, 通过纳米结构工程、 能带工程及高熵工程等策略, 热电材料的性能显著提升. 其中, 高熵材料设计是热电领域的前沿方向之一. 其核心理念是利用多种主要元素占据同一晶格位点, 构筑具有高度无序特征的晶体结构. 基于这一独特结构, 高熵材料表现出四种核心效应, 为协同优化热电性能开辟了新途径. 本文围绕四大核心效应中的晶格畸变效应, 系统阐述其微观机制, 深入分析其对电输运和热输运性能的影响, 并进一步揭示高熵材料中晶格畸变与电声输运之间的复杂关系, 旨在为高熵热电材料的优化设计提供理论指导.\u0000</p>","PeriodicalId":773,"journal":{"name":"Science China Materials","volume":"69 10","pages":"6104 - 6111"},"PeriodicalIF":7.7,"publicationDate":"2026-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149098764","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
Advances in piezoelectric materials with diverse crystal structures: from design to applications 不同晶体结构压电材料的研究进展:从设计到应用
IF 7.7 2区 材料科学
Science China Materials Pub Date : 2026-08-12 DOI: 10.1007/s40843-025-4334-9
Danni Yang  (, ), Pengfan Wu  (, ), Endian Cui  (, ), Jiaqian Yang  (, ), Yihui Song  (, ), Chenxi Zhao  (, ), Yi Yang  (, ), Yu Fan  (, ), Hui Xiong  (, ), Fayang Wang  (, ), Xiaojing Mu  (, )
{"title":"Advances in piezoelectric materials with diverse crystal structures: from design to applications","authors":"Danni Yang \u0000 (,&nbsp;),&nbsp;Pengfan Wu \u0000 (,&nbsp;),&nbsp;Endian Cui \u0000 (,&nbsp;),&nbsp;Jiaqian Yang \u0000 (,&nbsp;),&nbsp;Yihui Song \u0000 (,&nbsp;),&nbsp;Chenxi Zhao \u0000 (,&nbsp;),&nbsp;Yi Yang \u0000 (,&nbsp;),&nbsp;Yu Fan \u0000 (,&nbsp;),&nbsp;Hui Xiong \u0000 (,&nbsp;),&nbsp;Fayang Wang \u0000 (,&nbsp;),&nbsp;Xiaojing Mu \u0000 (,&nbsp;)","doi":"10.1007/s40843-025-4334-9","DOIUrl":"10.1007/s40843-025-4334-9","url":null,"abstract":"<div><p>Piezoelectric materials are the cornerstone of modern electromechanical energy conversion, critical for advancing technologies ranging from sensors to precision actuators. While their performance is intrinsically linked to the piezoelectric coefficient, which dictates energy conversion efficiency and device sensitivity, optimizing this property remains a challenge due to the profound influence of diverse microscopic structures. This review comprehensively examines three fundamental crystalline architectures, namely perovskite, wurtzite, and fluorite, and critically analyzes performance optimization strategies tailored to each structure. We delve into five principal modification approaches, including defect engineering, elemental doping, heterostructure films fabrication, composite films design, and buffer layer incorporation, with a focus on elucidating the underlying physical mechanisms that govern property enhancements. By providing a cross-structural comparison of these strategies, this review establishes clear structure property relationships, offering a foundational guide for material selection and design. Furthermore, we highlight the implications of these advanced materials for next-generation applications in energy harvesting and smart devices. Finally, the review concludes with a forward-looking roadmap, outlining emerging research directions and addressing key technical challenges to guide the development of next-generation high-performance piezoelectric materials.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":773,"journal":{"name":"Science China Materials","volume":"69 9","pages":"5283 - 5327"},"PeriodicalIF":7.7,"publicationDate":"2026-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148962134","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
Hierarchical structures invoked by hydrogen binding domains based on hydrogen-bonded organic frameworks for ultra-tough elastomers 基于氢键有机框架的超韧弹性体氢键域引发的层次结构
IF 7.7 2区 材料科学
Science China Materials Pub Date : 2026-08-07 DOI: 10.1007/s40843-026-4193-0
Xiaozhou Yu  (, ), Dan Wang  (, ), Guohui Liu  (, ), He Li  (, ), Ke Kong  (, ), Mingwang Pan  (, ), Ruihu Wang  (, )
{"title":"Hierarchical structures invoked by hydrogen binding domains based on hydrogen-bonded organic frameworks for ultra-tough elastomers","authors":"Xiaozhou Yu \u0000 (,&nbsp;),&nbsp;Dan Wang \u0000 (,&nbsp;),&nbsp;Guohui Liu \u0000 (,&nbsp;),&nbsp;He Li \u0000 (,&nbsp;),&nbsp;Ke Kong \u0000 (,&nbsp;),&nbsp;Mingwang Pan \u0000 (,&nbsp;),&nbsp;Ruihu Wang \u0000 (,&nbsp;)","doi":"10.1007/s40843-026-4193-0","DOIUrl":"10.1007/s40843-026-4193-0","url":null,"abstract":"<div><p>Elastomers are one of the promising rubber materials, but high mechanical strength at the expense of flexibility, toughness and adhesiveness has offset their advantages. It is pivotal and challenging to balance the energy dissipation of the elastomers. Herein, the hierarchical structure of elastomers based on hydrogen-bonded organic frameworks (HOFs) hard phase and polyurethane soft phase has been reported. The hard HOFs invoke hydrogen binding domains to form multiple noncovalent interactions between HOFs and polyurethane, which facilitates the energy dissipation under external force, while soft and ductile polyurethane chains maintain the integrity of elastomers. The tensile strength and toughness of as-prepared elastomers are as high as 8.01 MPa ± 0.34 MPa and 80.52 MJ m<sup>−3</sup> ± 11.46 MJ m<sup>−3</sup>, respectively, which greatly surpass those in the polyurethane counterpart (2.76 MPa ± 0.20 MPa and 27.48 MJ m<sup>−3</sup> ± 3.84 MJ m<sup>−3</sup>). The ultra-high toughness and elasticity endow the elastomers with splendid and repeatable adhesiveness toward various substrates. Benefiting from the strong mechanical performance, the resultant elastomer sensors could accurately recognize the gesture during operating electronic products with recognition accuracy over 94%. This work provides a promising approach to construct high-performance elastomers for the development of flexible electronics.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":773,"journal":{"name":"Science China Materials","volume":"69 10","pages":"6390 - 6399"},"PeriodicalIF":7.7,"publicationDate":"2026-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149098252","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
An AIE-active centrosymmetric small molecule for ultra-deep three-photon brain angiography in the NIR-III window 在NIR-III窗口中用于超深三光子脑血管造影的aie活性中心对称小分子
IF 7.7 2区 材料科学
Science China Materials Pub Date : 2026-08-06 DOI: 10.1007/s40843-026-4176-y
Jiemei Yan  (, ), Zengming Yang  (, ), Sijia Tang  (, ), Yingxian Zhang  (, ), Jie Huang  (, ), Zhenhui Li  (, ), Jiangtao Liu  (, ), Miaomiao Kang  (, ), Ping Qiu  (, ), Zhijun Zhang  (, ), Dong Wang  (, ), Ke Wang  (, )
{"title":"An AIE-active centrosymmetric small molecule for ultra-deep three-photon brain angiography in the NIR-III window","authors":"Jiemei Yan \u0000 (,&nbsp;),&nbsp;Zengming Yang \u0000 (,&nbsp;),&nbsp;Sijia Tang \u0000 (,&nbsp;),&nbsp;Yingxian Zhang \u0000 (,&nbsp;),&nbsp;Jie Huang \u0000 (,&nbsp;),&nbsp;Zhenhui Li \u0000 (,&nbsp;),&nbsp;Jiangtao Liu \u0000 (,&nbsp;),&nbsp;Miaomiao Kang \u0000 (,&nbsp;),&nbsp;Ping Qiu \u0000 (,&nbsp;),&nbsp;Zhijun Zhang \u0000 (,&nbsp;),&nbsp;Dong Wang \u0000 (,&nbsp;),&nbsp;Ke Wang \u0000 (,&nbsp;)","doi":"10.1007/s40843-026-4176-y","DOIUrl":"10.1007/s40843-026-4176-y","url":null,"abstract":"<div><p>Three-photon microscopy (3PM) utilizing the near-infrared-III (NIR-III) window (1600–1840 nm) provides a pivotal tool for high-resolution visualization of cerebral vasculature <i>in vivo</i>, owing to its superior deep-tissue penetration capability. However, imaging quality is critically dependent on the performance of fluorescent probes. This study proposes a probe optimization design strategy evolving from mirror symmetry to centrosymmetry, leading to the synthesis of a highly symmetrical aggregation-induced emission (AIE) molecule, T4PQ. The centrosymmetric structure enables precise matching of donor (D)-acceptor (A) units, facilitating uniform electron cloud delocalization and directional charge transfer. This enhances exciton formation efficiency and suppresses non-radiative decay, thereby improving the fluorescence quantum yield. Furthermore, the highly symmetrical configuration significantly boosts the three-photon absorption cross-section by promoting electron delocalization and increasing the transition dipole moment, enabling stronger nonlinear optical responses under long-wavelength excitation. As a result, the designed T4PQ nanoparticles achieve optimized probe performance, combining an enhanced three-photon absorption cross-section, high fluorescence quantum yield, and excellent photostability. The corresponding nanoparticles (T4PQ NPs) exhibited a significantly enhanced three-photon absorption cross section, high fluorescence quantum yield, and excellent photostability. In murine <i>in vivo</i> experiments, T4PQ NPs achieved three-dimensional cerebrovascular imaging at a depth of 1785 µm and enabled real-time dynamic observation of hemodynamics in microvessels at a depth of 1006 µm, while demonstrating good biocompatibility. This research validates the advantage of centrosymmetric molecular structures in the design of deep-brain imaging probes, providing a high-performance tool for neurovascular research.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":773,"journal":{"name":"Science China Materials","volume":"69 10","pages":"6497 - 6506"},"PeriodicalIF":7.7,"publicationDate":"2026-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149098128","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
The stable radical anions generated from perylenediimide functionalized bispillar[5]arene for boosting near-infrared photothermal conversion 由苝酰二亚胺官能化双柱[5]芳烃生成的稳定自由基阴离子促进近红外光热转换
IF 7.7 2区 材料科学
Science China Materials Pub Date : 2026-08-06 DOI: 10.1007/s40843-026-4179-x
Luo Sang  (, ), Ting-Ting Huang  (, ), Xiao-Wen Sun  (, ), Tai-Bao Wei  (, ), Hong Yao  (, ), Bingbing Shi  (, ), Jin-Fa Chen  (, ), Qi Lin  (, )
{"title":"The stable radical anions generated from perylenediimide functionalized bispillar[5]arene for boosting near-infrared photothermal conversion","authors":"Luo Sang \u0000 (,&nbsp;),&nbsp;Ting-Ting Huang \u0000 (,&nbsp;),&nbsp;Xiao-Wen Sun \u0000 (,&nbsp;),&nbsp;Tai-Bao Wei \u0000 (,&nbsp;),&nbsp;Hong Yao \u0000 (,&nbsp;),&nbsp;Bingbing Shi \u0000 (,&nbsp;),&nbsp;Jin-Fa Chen \u0000 (,&nbsp;),&nbsp;Qi Lin \u0000 (,&nbsp;)","doi":"10.1007/s40843-026-4179-x","DOIUrl":"10.1007/s40843-026-4179-x","url":null,"abstract":"<div><p>Perylene diimide (PDI) radical anions exhibit poor environmental stability, which restricts their generation efficiency and practical application. Herein, a PDI-functionalized bispillar[5]arene (PDI-P5) was designed to construct stable and high-efficiency photothermal radicals. Intramolecular charge transfer (ICT) between PDI and bispillar[5]arene narrows the energy gap. Under 455 nm ultraviolet light irradiation and diethylamine (DEA) vapor exposure, photoinduced electron transfer (PET) efficiently generates PDI-P5<sup>·−</sup> radicals, which possess broad near-infrared (NIR) absorption, enhanced non-radiative transitions, and excellent stability. Notably, PDI-P5<sup>·−</sup> can rapidly reach 90 °C under 0.20 W cm<sup>−2</sup> simulated sunlight irradiation. Moreover, it exhibits superior multi-step photothermal anti-counterfeiting performance. This work provides a novel strategy for the development of stable radical-based photothermal materials, which holds great potential for anti-counterfeiting and bioimaging applications.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":773,"journal":{"name":"Science China Materials","volume":"69 10","pages":"6444 - 6451"},"PeriodicalIF":7.7,"publicationDate":"2026-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149098127","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
COFAP: a universal framework for COFs adsorption prediction through designed multi-modal extraction and cross-modal synergy COFAP:通过设计的多模态萃取和跨模态协同作用预测COFs吸附的通用框架
IF 7.7 2区 材料科学
Science China Materials Pub Date : 2026-08-04 DOI: 10.1007/s40843-025-4104-4
Zihan Li  (, ), Mingyang Wan  (, ), Mingyu Gao  (, ), Xishi Tai  (, ), Zhongshan Chen  (, ), Xiangke Wang  (, ), Feifan Zhang  (, )
{"title":"COFAP: a universal framework for COFs adsorption prediction through designed multi-modal extraction and cross-modal synergy","authors":"Zihan Li \u0000 (,&nbsp;),&nbsp;Mingyang Wan \u0000 (,&nbsp;),&nbsp;Mingyu Gao \u0000 (,&nbsp;),&nbsp;Xishi Tai \u0000 (,&nbsp;),&nbsp;Zhongshan Chen \u0000 (,&nbsp;),&nbsp;Xiangke Wang \u0000 (,&nbsp;),&nbsp;Feifan Zhang \u0000 (,&nbsp;)","doi":"10.1007/s40843-025-4104-4","DOIUrl":"10.1007/s40843-025-4104-4","url":null,"abstract":"<div><p>Covalent organic frameworks (COFs) are promising adsorbents for gas adsorption and separation, while identifying the optimal structures among their vast design space requires efficient high-throughput screening. Conventional machine-learning predictors rely heavily on specific gas-related features. However, these features are time-consuming and limit scalability, leading to inefficiency and labor-intensive processes. Herein, a universal COFs adsorption prediction framework (COFAP) is proposed, which can extract multi-modal structural and chemical features through deep learning and fuse these complementary features via a cross-modal attention mechanism. Without relying on explicit gas-specific thermodynamic descriptors, COFAP achieves state-of-the-art prediction performance on the hypoCOFs dataset under the conditions investigated in this study, outperforming existing approaches. Based on COFAP, we also found that high-performing COFs for gas separation concentrate within a narrow range of pore size and surface area. A weight-adjustable prioritization scheme is also developed to enable flexible, application-specific ranking of candidate COFs for researchers. Superior efficiency and accuracy render COFAP directly deployable in crystalline porous materials.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":773,"journal":{"name":"Science China Materials","volume":"69 9","pages":"5704 - 5719"},"PeriodicalIF":7.7,"publicationDate":"2026-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148962294","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
High resistive switching on/off ratio in Lu doped Hf0.4Zr0.6O2 thin films through band structure and vacancy co-strategy 利用能带结构和空位协同策略制备掺Lu的Hf0.4Zr0.6O2薄膜的高阻通断率
IF 7.7 2区 材料科学
Science China Materials Pub Date : 2026-08-04 DOI: 10.1007/s40843-026-4235-6
Jiaqi Li  (, ), Qiang Li  (, ), Hongwei Wang  (, ), Xiaoxia Yu  (, ), Jie Tu  (, ), Yu Lei  (, ), Zhiguo Li  (, ), Han Wu  (, ), Jun Miao  (, ), Linxing Zhang  (, ), Xianran Xing  (, )
{"title":"High resistive switching on/off ratio in Lu doped Hf0.4Zr0.6O2 thin films through band structure and vacancy co-strategy","authors":"Jiaqi Li \u0000 (,&nbsp;),&nbsp;Qiang Li \u0000 (,&nbsp;),&nbsp;Hongwei Wang \u0000 (,&nbsp;),&nbsp;Xiaoxia Yu \u0000 (,&nbsp;),&nbsp;Jie Tu \u0000 (,&nbsp;),&nbsp;Yu Lei \u0000 (,&nbsp;),&nbsp;Zhiguo Li \u0000 (,&nbsp;),&nbsp;Han Wu \u0000 (,&nbsp;),&nbsp;Jun Miao \u0000 (,&nbsp;),&nbsp;Linxing Zhang \u0000 (,&nbsp;),&nbsp;Xianran Xing \u0000 (,&nbsp;)","doi":"10.1007/s40843-026-4235-6","DOIUrl":"10.1007/s40843-026-4235-6","url":null,"abstract":"<div><p>Fluorite-structured oxides (HfO<sub>2</sub>, ZrO<sub>2</sub>) are ideal materials for resistive random-access memory (RRAM) due to their scalability and adjustable structural and electrical characteristics. The high-resistive switching windows are essential for improving reading accuracy in memory applications. Here, we adopted a collaborative strategy by optimizing the Hf/Zr ratio and Lu<sup>3+</sup> doping to regulate the band structure and oxygen vacancy concentration, which significantly influence intrinsic leakage currents and the formation of conductive filaments. The resulting Lu-doped Hf<sub>0.4</sub>Zr<sub>0.6</sub>O<sub>2</sub> (LHZO) thin films achieve a resistive switching ratio of 8.4 × 10<sup>4</sup>, which is two orders of magnitude higher than that of ZrO<sub>2</sub> thin films (1.2 × 10<sup>3</sup>). Electrical characterization and synchrotron radiation photoemission spectroscopy confirm that enhanced insulating properties and increased oxygen vacancies are pivotal for suppressing off-state conduction and stabilizing conductive filaments in the on-state. These findings show that the co-optimization of band structure and oxygen vacancy effectively regulates the electrical characteristics of fluorite-structured oxides as high-performance RRAM.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":773,"journal":{"name":"Science China Materials","volume":"69 10","pages":"6464 - 6470"},"PeriodicalIF":7.7,"publicationDate":"2026-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149098048","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
Architecturing unique microstructures in high-entropy alloys via compositional complexity for superior mechanical performance: a critical review 高熵合金中独特的微观结构通过成分复杂性获得优异的机械性能:一个重要的回顾
IF 7.7 2区 材料科学
Science China Materials Pub Date : 2026-08-03 DOI: 10.1007/s40843-025-4174-y
Haiyang Li  (, ), Zhaolong Ma  (, ), Xingwang Cheng  (, )
{"title":"Architecturing unique microstructures in high-entropy alloys via compositional complexity for superior mechanical performance: a critical review","authors":"Haiyang Li \u0000 (,&nbsp;),&nbsp;Zhaolong Ma \u0000 (,&nbsp;),&nbsp;Xingwang Cheng \u0000 (,&nbsp;)","doi":"10.1007/s40843-025-4174-y","DOIUrl":"10.1007/s40843-025-4174-y","url":null,"abstract":"<div><p>Departing from the initial paradigm of single-phase solid-solutions, high-entropy alloys (HEAs) have evolved to actively exploit their inherent compositional complexity as a strategic lever for microstructural design. This review synthesizes recent advances by categorizing and analyzing three distinct classes of microstructures uniquely enabled by this chemical complexity: unique solidification microstructures (eutectic, peritectic, eutectoid), multi-scale solid-state precipitates, and chemical short-range order (CSRO) configurations. Crucially, we elucidate not only the individual formation mechanisms of these microstructures but also their cross-coupling interactions across multiple length scales. Furthermore, we detail how these distinct structural features interplay with fundamental deformation mechanisms to achieve unprecedented mechanical properties. By establishing explicit composition-microstructure-property linkages, this work provides a targeted framework for leveraging chemical complexity, moving beyond empirical exploration toward the rational design of next-generation HEAs with tailored hierarchical architectures and superior performance.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":773,"journal":{"name":"Science China Materials","volume":"69 10","pages":"6027 - 6046"},"PeriodicalIF":7.7,"publicationDate":"2026-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149098620","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
Highly efficient removal of Sr2+ by a layered potassium phosphatoantimonate under neutral and acidic conditions 层状磷酸锑酸钾在中性和酸性条件下高效去除Sr2+
IF 7.7 2区 材料科学
Science China Materials Pub Date : 2026-07-31 DOI: 10.1007/s40843-026-4112-6
Xiaoya Zhang  (, ), Shuangjiang Li  (, ), Haiyan Sun  (, ), Zhihua Chen  (, ), Jiahua Luo  (, ), Shuzhen Liu  (, ), Xiaoying Huang  (, ), Meiling Feng  (, )
{"title":"Highly efficient removal of Sr2+ by a layered potassium phosphatoantimonate under neutral and acidic conditions","authors":"Xiaoya Zhang \u0000 (,&nbsp;),&nbsp;Shuangjiang Li \u0000 (,&nbsp;),&nbsp;Haiyan Sun \u0000 (,&nbsp;),&nbsp;Zhihua Chen \u0000 (,&nbsp;),&nbsp;Jiahua Luo \u0000 (,&nbsp;),&nbsp;Shuzhen Liu \u0000 (,&nbsp;),&nbsp;Xiaoying Huang \u0000 (,&nbsp;),&nbsp;Meiling Feng \u0000 (,&nbsp;)","doi":"10.1007/s40843-026-4112-6","DOIUrl":"10.1007/s40843-026-4112-6","url":null,"abstract":"<div><p>Radiostrontium remediation is crucial for ecological protection and sustainable development of nuclear energy. However, efficient removal of <sup>90</sup>Sr from complex radioactive liquid waste, especially under acidic conditions, remains challenging due to material instability and intense proton competition. Herein, the rapid and highly selective capture of Sr<sup>2+</sup> in neutral and even acidic solutions has been achieved by a layered potassium phosphatoantimonate KSbP<sub>2</sub>O<sub>8</sub> with excellent radiation and thermal stability. Under neutral conditions, it possesses high maximum adsorption capacity (<i>q</i><sub><i>m</i></sub><sup>Sr</sup> = 110.25 mg g<sup>−1</sup>), rapid adsorption kinetics (the removal rate (<i>R</i><sup>Sr</sup>) of 91.54% within 30 min), and excellent selectivity for Sr<sup>2+</sup>, and facile regeneration. Particularly, even under acidic conditions (pH 2.0), KSbP<sub>2</sub>O<sub>8</sub> still maintains excellent Sr<sup>2+</sup> removal capacity (<i>q</i><sub><i>m</i></sub><sup>Sr</sup> = 79.38 mg g<sup>−1</sup>), fast kinetics, and high selectivity. A mechanism study by multiple characterizations reveals that the efficient Sr<sup>2+</sup> removal of KSbP<sub>2</sub>O<sub>8</sub> mainly stems from ion exchange between Sr<sup>2+</sup> and interlayer K<sup>+</sup> in KSbP<sub>2</sub>O<sub>8</sub>, which is attributed to the synergy between the Sb<sup>5+</sup>-induced Brønsted acidity and the high charge density of the anionic framework. This study demonstrates the exceptional capability of phosphatoantimonates to selectively capture Sr<sup>2+</sup> under acidic conditions, highlighting the potential of phosphatoantimonates as effective scavengers for radiostrontium remediation.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":773,"journal":{"name":"Science China Materials","volume":"69 10","pages":"6487 - 6496"},"PeriodicalIF":7.7,"publicationDate":"2026-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149099234","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}
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