Science China Materials最新文献

{"title":"Harnessing anion intercalation to activate layered double hydroxides for efficient and stable seawater splitting","authors":"Yu-Ping Zhang \u0000 (,&nbsp;),&nbsp;Jian-Jun Wang \u0000 (,&nbsp;)","doi":"10.1007/s40843-025-4066-x","DOIUrl":"10.1007/s40843-025-4066-x","url":null,"abstract":"<div><p>The direct electrolysis of seawater offers a sustainable pathway for green hydrogen production, yet its practical implementation is constrained by the competing chlorine evolution reaction and severe catalyst corrosion. Layered double hydroxides (LDHs) with their tunable host layers and exchangeable interlayer galleries present a promising catalytic platform for the oxygen evolution reaction (OER) in seawater, though their intrinsic activity and chloride tolerance require further enhancement. Anion intercalation engineering has emerged as a powerful strategy to systematically address these challenges. By inserting functional anions, ranging from simple inorganic ions and polyoxometalates to organic molecules, into LDH interlayers, it is possible to expand interlayer spacing for improved mass transport, directly modulate the electronic structure of metal centers to boost intrinsic OER activity, and create a negatively charged interfacial microenvironment that selectively enriches OH⁻ due to its superior ability to participate in the interfacial reaction network. This review comprehensively examines the design principles, mechanistic insights, and catalytic performance of various anion-intercalated LDHs for seawater splitting. It highlights representative breakthroughs in material design, discusses integration strategies within practical electrolyzer devices, and evaluates long-term stability under industrial operating conditions. Finally, the review outlines key challenges and future research directions aimed at advancing the rational design and scalable deployment of high-performance and durable LDH-based catalysts for sustainable hydrogen production from seawater.</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":"5223 - 5251"},"PeriodicalIF":7.7,"publicationDate":"2026-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148962389","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}

{"title":"Covalent organic frameworks functionalized with thioether or vinyl groups for efficient and rapid capture of multiple iodine pollutants","authors":"Yumei Luo \u0000 (,&nbsp;),&nbsp;Yuancheng Qin \u0000 (,&nbsp;),&nbsp;Cailing Ni \u0000 (,&nbsp;),&nbsp;Chao Liu \u0000 (,&nbsp;),&nbsp;Hewei Yan \u0000 (,&nbsp;),&nbsp;Renjie Song \u0000 (,&nbsp;),&nbsp;Jianping Zou \u0000 (,&nbsp;)","doi":"10.1007/s40843-025-4044-3","DOIUrl":"10.1007/s40843-025-4044-3","url":null,"abstract":"<div><p>Efficient sequestration of radioactive iodine species (I₂, CH₃I, I₃⁻) is vital for nuclear safety and environmental protection. However, developing multifunctional adsorbents that remain effective under diverse conditions remains a significant challenge. Herein, we report two functionalized PD-COFs (PD-WS and PD-WY) with moderate crystallinity, outstanding thermal stability, and robust chemical resistance. They exhibit superior adsorption performance in both gas and liquid phases. Specifically, at 75°C, PD-WY achieves capacities of 4.88 g g⁻¹ for I₂, 1.55 g g⁻¹ for CH₃I, and 5.55 g g⁻¹ for the I₂/CH₃I mixture, while high capacities are also retained at room temperature. In solution, PD-WY adsorbs up to 3.56 g g⁻¹ of I₃⁻ in water and 2.00 g g⁻¹ of iodine in cyclohexane. These COFs display rapid kinetics (<i>K</i>_80% = 3.25 g g⁻¹ h⁻¹ for I₂ and 7.89 g g⁻¹ h⁻¹ for I₃⁻) and excellent selectivity. Mechanistic studies indicated that the excellent iodine affinity of PD-COFs arises from their rich electronic structures, abundant active sites, and charge transfer interactions. These findings position PD-COFs as highly promising adsorbents for nuclear waste treatment and environmental 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 8","pages":"4961 - 4971"},"PeriodicalIF":7.7,"publicationDate":"2026-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148652398","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}

{"title":"Multi-model framework for intelligent research and development of super-hydrophilic coatings","authors":"Lie Wu \u0000 (,&nbsp;),&nbsp;Shiyu Fu \u0000 (,&nbsp;),&nbsp;Yutang Li \u0000 (,&nbsp;),&nbsp;Zhanyuan Li \u0000 (,&nbsp;),&nbsp;Bing Wang \u0000 (,&nbsp;),&nbsp;Yiqi Li \u0000 (,&nbsp;),&nbsp;Fan Yang \u0000 (,&nbsp;),&nbsp;Ming Gao \u0000 (,&nbsp;),&nbsp;Xin Wang \u0000 (,&nbsp;),&nbsp;Wenhua Zhou \u0000 (,&nbsp;),&nbsp;Huijuan Ma \u0000 (,&nbsp;),&nbsp;Paul K. Chu \u0000 (,&nbsp;),&nbsp;Xue-Feng Yu \u0000 (,&nbsp;)","doi":"10.1007/s40843-026-4146-8","DOIUrl":"10.1007/s40843-026-4146-8","url":null,"abstract":"<div><p>The conventional trial-and-error approach for the research and development (R&amp;D) of high-performance super-hydrophilic coatings presents long-standing challenges, including data-scarce, unclear structure-activity relationships and design guidelines. In this study, an innovative multi-model framework that synergistically integrates a specialized polymer large language model (PolyLLM) and a polymer machine learning model (PolyML) for intelligent R&amp;D of super-hydrophilic coating systems is designed and demonstrated. During the hydrophilic polymer research phase, the multi-model leverages the domain-specific insights and chemical tool capabilities of the fine-tuned PolyLLM to systematically screen 852 hydrophilic monomers and generate 3880 hypothetical polymer architectures. By utilizing the PolyML, the multi-model enables precise performance predictions and quantitative evaluations of feature importance to facilitate efficient high-throughput screening of optimal structures from the generated polymer database. Experimental validation confirms that the multi-model achieves a mean absolute error (MAE) below 10% across various polymer property prediction tasks compared to experimental data. This approach leads to the rapid discovery of hydrophilic polymers with exceptional anti-swelling and wear-resistance. In developing super-hydrophilic coatings, the multi-model effectively combines PolyLLM’s guidance for large-scale synthesis with PolyML’s capabilities for precise formulation optimization and curing parameter adjustments. The effectiveness of multi-model is demonstrated by the accelerated development of high-performance anti-fogging coatings for swim goggles and optical films with outstanding water- and wear-resistance that significantly outperform leading commercial products. This multi-model offers a flexible approach for advanced polymer coatings, leading to a seamless connection between laboratory research and industrial development.</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":"5653 - 5664"},"PeriodicalIF":7.7,"publicationDate":"2026-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148962336","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}

{"title":"Tuning interfacial water supply and electron transfer enables industrial-scale alkaline hydrogen evolution","authors":"Zhaoyang Shi \u0000 (,&nbsp;),&nbsp;Xiaotong Wan \u0000 (,&nbsp;),&nbsp;Penghui Huang \u0000 (,&nbsp;),&nbsp;Yuxiang Guo \u0000 (,&nbsp;),&nbsp;Zhe Wang \u0000 (,&nbsp;),&nbsp;Yang Yang \u0000 (,&nbsp;),&nbsp;Sirui Huang \u0000 (,&nbsp;),&nbsp;Danji Huang \u0000 (,&nbsp;),&nbsp;Youwen Liu \u0000 (,&nbsp;),&nbsp;Tianyou Zhai \u0000 (,&nbsp;)","doi":"10.1007/s40843-025-4036-4","DOIUrl":"10.1007/s40843-025-4036-4","url":null,"abstract":"<div><p>Alkaline water electrolysis represents a pivotal technology for large-scale green hydrogen production, yet its efficiency is severely constrained by the sluggish kinetics of the hydrogen evolution reaction (HER) at industrial current densities. Herein, we propose a synergistic dual-doping strategy to significantly lower the kinetic barriers for both the Volmer and Heyrovsky steps, thereby enabling ultrastable and high-efficiency hydrogen evolution. To validate this concept, a robust amorphous NiCoV nanosheet electrode was synthesized via a scalable one-step electrodeposition process. <i>In situ</i> spectroscopic and kinetic characterizations reveal that the incorporation of hydrophilic V species optimizes the interfacial water environment by disrupting the hydrogen bond network and ensuring a rapid supply of free water reactants at the inner Helmholtz plane. Simultaneously, the Co dopants modulate the electronic structure to facilitate efficient electron transfer and optimize the adsorption energetics of intermediates. Consequently, the NiCoV electrode requires an ultralow overpotential of 253 mV to drive −400 mA cm⁻², surpassing most reported Pt-based catalysts, and maintains stability for over 200 h. Industrial validation in a scaled-up electrolyzer demonstrates a cell voltage of 1.89 V at 400 mA cm⁻², achieving an energy saving of 0.12 kWh m⁻³ H₂ compared to commercial benchmarks. This translates to an annual electricity saving of 1.33 × 10⁶ kWh for a medium-scale demonstration project, highlighting the immense potential for sustainable industrial 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 8","pages":"4687 - 4696"},"PeriodicalIF":7.7,"publicationDate":"2026-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148652178","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}

{"title":"Injectable hydrogel with photothermal antibacterial properties for accelerating infected wound healing","authors":"Xiaoyang Liang \u0000 (,&nbsp;),&nbsp;Yilin Zhou \u0000 (,&nbsp;),&nbsp;Rui Zhang \u0000 (,&nbsp;),&nbsp;Guo Zhang \u0000 (,&nbsp;),&nbsp;Zhixuan Xu \u0000 (,&nbsp;),&nbsp;Bingran Yu \u0000 (,&nbsp;),&nbsp;Yang Li \u0000 (,&nbsp;),&nbsp;Fu-Jian Xu \u0000 (,&nbsp;)","doi":"10.1007/s40843-026-4150-2","DOIUrl":"10.1007/s40843-026-4150-2","url":null,"abstract":"<div><p>Infection is one of the major challenges in clinical wound management and the irregular morphology of wounds further complicates their treatment. Injectable hydrogels have garnered attention for irregular wound treatment due to their excellent conformational filling capabilities. However, traditional injectable hydrogels lack bioactive properties such as antimicrobial activity, presenting persistent challenges in wound healing therapy. To address this, by sequentially mixing phenylboronic acid-modified hyaluronic acid (HA-PBA) and chloroauric acid under alkaline conditions, a hydrogel with excellent injectability, HPAu gel, was obtained. The internal multiple crosslinks within HPAu gel enable uniform encapsulation of <i>in situ</i>-generated gold nanoparticles. Hydrogen bonds and phenylboronic acid ester bonds confer excellent self-healing properties, injectability, and adhesion to HPAu gel, allowing it to effectively seal irregular cavities and adhere to various organs. <i>In vitro</i> experiments demonstrate the hydrogel possesses long-lasting photothermal stability, effectively eliminating multiple bacteria. In mouse dorsal full-thickness infected wound experiments, HPAu gel effectively eradicated <i>Staphylococcus aureus</i> (<i>S. aureus</i>) at the wound site under near-infrared light irradiation. It simultaneously reduced inflammation, promoted vascular regeneration at the wound site, and accelerated wound healing.\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 9","pages":"5848 - 5858"},"PeriodicalIF":7.7,"publicationDate":"2026-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148962248","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}

{"title":"Heteroatom-fused tetraphenylethylene-based conjugated microporous polymers for sacrificial photocatalytic H2O2 production","authors":"Zhipeng Luo \u0000 (,&nbsp;),&nbsp;Rhys J. Bourhill,&nbsp;Fengtao Zhang \u0000 (,&nbsp;),&nbsp;Yujing Xiong \u0000 (,&nbsp;),&nbsp;Weimin Zheng \u0000 (,&nbsp;),&nbsp;Xiong Chen \u0000 (,&nbsp;),&nbsp;Reiner Sebastian Sprick","doi":"10.1007/s40843-026-4111-4","DOIUrl":"10.1007/s40843-026-4111-4","url":null,"abstract":"<div><p>Hydrogen peroxide (H₂O₂) is an extremely valuable feedstock and environmentally friendly oxidising agent widely used in the modern chemical industry. While current industrial methods for H₂O₂ synthesis are energy-intensive, photocatalysis presents a sustainable alternative. However, the efficiency of existing photocatalytic systems remains insufficient for practical large-scale applications. Herein, a range of tetraphenylethylene-based conjugated microporous polymers (CMPs) have been designed and synthesized through Suzuki-Miyaura polycondensation, incorporating either biphenyl, dibenzo[<i>b</i>,<i>d</i>]thiophene, or dibenzo[<i>b</i>,<i>d</i>]thiophene sulfone. We investigate how the presence of dibenzo[<i>b</i>,<i>d</i>]-thiophene sulfone units correlates with enhanced photocatalytic activity, which is attributed to increased wettability and improved charge separation. The CMP which contains biphenyl ring functionality shows a H₂O₂ production rate of 10,500 µmol h⁻¹ g⁻¹, which more than doubles to 26,650 µmol h⁻¹ g⁻¹ upon incorporation of dibenzo[<i>b</i>,<i>d</i>]thiophene sulfone building blocks, with an apparent quantum yield of 17.1% at 420 nm. This work also explores the stability of CMP photocatalysts for H₂O₂ production and evaluates a potential superoxide radical-mediated mechanism.</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":"6436 - 6443"},"PeriodicalIF":7.7,"publicationDate":"2026-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s40843-026-4111-4.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149098035","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Boosting output performance in hydrogel-based moisture-electric generators via tunable solvent interactions","authors":"Xingyi Dai \u0000 (,&nbsp;),&nbsp;Jiaxin Han \u0000 (,&nbsp;),&nbsp;Yifei Zhao \u0000 (,&nbsp;),&nbsp;Weng Fu Io \u0000 (,&nbsp;),&nbsp;Xuyang Zhang \u0000 (,&nbsp;),&nbsp;Biqin Dong \u0000 (,&nbsp;),&nbsp;Long-Biao Huang \u0000 (,&nbsp;),&nbsp;Jianhua Hao \u0000 (,&nbsp;)","doi":"10.1007/s40843-025-4007-x","DOIUrl":"10.1007/s40843-025-4007-x","url":null,"abstract":"<div><p>Hydrogels, with their hydrophilicity, flexibility, and environmental friendliness, are highly desirable for moisture-electric generators (MEGs) that harness ubiquitous moisture to generate electrical energy. As the active material layer in MEGs, hydrogels play a crucial role in absorbing atmospheric moisture and converting chemical potential energy into electricity. However, the relatively low output current of the device and the instability of hydrogels pose challenges to the development of high-performance hydrogel-based MEGs. Herein, we introduce a straightforward, feasible, cost-effective, and versatile two-step solvent displacement strategy to overcome the barrier associated with the development of MEGs. Through tunable solvent interactions of glycerol and water, the moisture absorption capability and stability of the hydrogel can be improved, while promoting favorable ion migration. Such an effective processing route not only significantly boosts the output performances but also greatly improves the long-term durability of hydrogel-based MEGs. Notably, the current output and power density of the treated MEGs can increase by up to two orders of magnitude. The mechanisms behind the intriguing observation are investigated by various characterizations and theoretical calculations. This universal strategy holds promise to be extended to various hydrogel-based MEGs. Moreover, the MEGs can be used for energy harvesting, self-powered respiratory monitoring, and non-contact humidity detection. This work offers new opportunities for advancing green energy and self-powered technologies.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":773,"journal":{"name":"Science China Materials","volume":"69 8","pages":"4756 - 4765"},"PeriodicalIF":7.7,"publicationDate":"2026-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s40843-025-4007-x.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148652267","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Candidate contact layer for SnTe-based thermoelectric device","authors":"Jing Tang \u0000 (,&nbsp;),&nbsp;Yanzhong Pei \u0000 (,&nbsp;)","doi":"10.1007/s40843-025-3972-9","DOIUrl":"10.1007/s40843-025-3972-9","url":null,"abstract":"<div><p>SnTe-based thermoelectric materials have demonstrated significant improvements in performance and are considered a promising, less-toxic alternative to PbTe. However, a substantial gap persists between experimental device efficiencies and those predicted from material performance metrics, primarily due to extra resistance in the contact layers. To fully realize the potential of SnTe thermoelectrics at the device level, it is critical to develop contact layers that ensure strong interfacial bonding, high thermal stability, and low electrical contact resistance. Although Ni is the most commonly used contact material for SnTe devices, it exhibits significant interdiffusion with SnTe, which can degrade interfacial integrity and ultimately lead to long-term device failure. Here, a reliable contact layer for SnTe through ther-modynamic analysis of the SnTe-Ni₃Te₂ phase diagram is identified, Ni_5.75SnTe₅ selected as a promising candidate. A single-leg thermoelectric device based on Sn_0.96Bi_0.04Te_0.98Se_0.02 with Ni_5.75SnTe₅ as a contact layer is fabricated, achieving a contact resistivity of approximately 3.7 µΩ cm². This contact layer selection strategy shows great promise for application to other thermoelectric 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 8","pages":"4954 - 4960"},"PeriodicalIF":7.7,"publicationDate":"2026-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148652397","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}

{"title":"Shape memory quasi-liquid slippery surface","authors":"Xuan Zhang \u0000 (,&nbsp;),&nbsp;Deping Ma \u0000 (,&nbsp;),&nbsp;Liang Geng \u0000 (,&nbsp;),&nbsp;Yuan Chen \u0000 (,&nbsp;),&nbsp;Yuyan Liu \u0000 (,&nbsp;),&nbsp;Hua Lai \u0000 (,&nbsp;),&nbsp;Zhimin Xie \u0000 (,&nbsp;),&nbsp;Zhongjun Cheng \u0000 (,&nbsp;),&nbsp;Lei Jiang \u0000 (,&nbsp;)","doi":"10.1007/s40843-025-4100-9","DOIUrl":"10.1007/s40843-025-4100-9","url":null,"abstract":"<div><p>Shape memory droplet manipulation platforms have garnered widespread attention due to their programmable droplet control capabilities. Current research primarily focuses on superhydrophobic surfaces and slippery lubricant-infused porous surfaces (SLIPS); however, vulnerable surface micro/nanostructures and loss of lubricant oils are unavoidable. Herein, we report a shape memory quasi-liquid polydimethylsiloxane (PDMS) brush surface that can avoid the above imperfections. The surface was prepared by introducing a layer of SiO₂ as a “bridge” on a shape memory epoxy substrate to provide abundant functional active groups for grafting PDMS brushes. By precisely controlling the thickness of the SiO₂ layer and the grafting condition of the PDMS brushes, the obtained surface shows good shape memory property and low adhesion to diverse liquids with different surface tensions. Reversible anisotropic/isotropic droplets sliding control for both water and organic droplets was demonstrated through dynamic introduction/removal of the groove structures on the surface, proving the excellent droplet manipulation function based on the combination of shape memory property and the low adhesion of the PDMS brushes. Furthermore, the obtained material can be used as a functional coating for diverse substrates to impart anti-fouling and self-cleaning properties. This work proposed the use of a nanoscale SiO₂ layer as a “bridge”, which offers a strategy to address the challenge of grafting PDMS brushes onto a polymer surface. Meanwhile, given the excellent advantages of quasi-liquid PDMS brushes and programmable controllability of shape memory polymer, this work could provide some fresh ideas for the development of a droplet manipulation platform.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":773,"journal":{"name":"Science China Materials","volume":"69 8","pages":"4808 - 4819"},"PeriodicalIF":7.7,"publicationDate":"2026-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148652313","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}

{"title":"Stress-guided anisotropic etching of MoS2 nanostructure with spatial control over edge structure and morphology","authors":"Wenhui Sun \u0000 (,&nbsp;),&nbsp;Shuiyan Cao \u0000 (,&nbsp;),&nbsp;Wenfa Chen \u0000 (,&nbsp;),&nbsp;Ying Liu \u0000 (,&nbsp;),&nbsp;Siyuan He \u0000 (,&nbsp;),&nbsp;Yuwei Zhang \u0000 (,&nbsp;),&nbsp;Tao Zhou \u0000 (,&nbsp;),&nbsp;Junchen Wu \u0000 (,&nbsp;),&nbsp;Pin Lyu \u0000 (,&nbsp;),&nbsp;Jinguo Liu \u0000 (,&nbsp;),&nbsp;Dongyang Wan \u0000 (,&nbsp;),&nbsp;Mingming Jiang \u0000 (,&nbsp;),&nbsp;Caixia Kan \u0000 (,&nbsp;),&nbsp;Shisheng Li \u0000 (,&nbsp;),&nbsp;Yanpeng Liu \u0000 (,&nbsp;)","doi":"10.1007/s40843-025-4097-3","DOIUrl":"10.1007/s40843-025-4097-3","url":null,"abstract":"<div><p>The on-demand patterning of two-dimensional transition metal dichalcogenides (TMDs) with tailored edges are of great importance in their usages in electronic and optoelectronic applications, but remain technically challenging. Herein, we developed a stress-guided anisotropic etching strategy that can produce large-area and well-ordered MoS₂ nanostructures (e.g., nano-ribbons and nano-squares) in a template-free fashion. By creating uniaxially cumulative stress followed by selective thermal etching, the MoS₂ monolayers were statistically etched into ribbon-like structures, the width of which can be manifested and inversely proportional to the applied stress magnitude. In addition, these newly etched edges are found to be macroscopically straight or serrated ones, but predominantly Mo-zigzag terminated and remarkably enhanced the photoluminescence by a factor of ∼8.0. The priority of two edge category experimentally relies on the angle between the stress direction and the crystallographic orientation of MoS₂, also supported by theoretical calculations. We further demonstrate that biaxial stressing MoS₂ crystals could generate an array of well-defined nano-squares, thereby providing a scalable and versatile patterning route to engineer 2D materials with tailored functional edges, which hold great potential for future electrocatalytic and optoelectronic 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 8","pages":"4558 - 4567"},"PeriodicalIF":7.7,"publicationDate":"2026-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148652346","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}