Materials Today最新文献

{"title":"Superacid assisted high-throughput production and solution-processing of pristine two-dimensional materials","authors":"Qixuan Deng ,&nbsp;Jiabin Ma ,&nbsp;Minsu Liu ,&nbsp;Yicong Zhou ,&nbsp;Siyuan Ding ,&nbsp;Ke Zhan ,&nbsp;Yuan Zhu ,&nbsp;Zhiyuan Xiong ,&nbsp;Yang Su ,&nbsp;Kuang Yu ,&nbsp;Hui-Ming Cheng ,&nbsp;Ling Qiu","doi":"10.1016/j.mattod.2025.03.026","DOIUrl":"10.1016/j.mattod.2025.03.026","url":null,"abstract":"<div><div>Pristine two-dimensional (2D) materials have a multitude of interesting properties, promising a broad spectrum of applications. However, their poor affinity for common solvents and tendency to aggregate impede their effective exfoliation and solution-processing into various structures, such as fibers and membranes, thus limiting their practical use. We report a high-efficiency method for producing pristine 2D nanosheets by direct high-speed shearing exfoliation in trifluoromethanesulfonic acid (TfOH). Typically, this method produces hexagonal boron nitride nanosheets (BNNSs) with an unprecedented throughput of 38.8 mg mL^-1h⁻¹. The effective exfoliation is attributed to the strong binding affinity, large dipole moment and steric repulsion of TfOH, which collectively introduce layer edge distortion in hexagonal boron nitride (hBN), facilitating its exfoliation. The mechanical exfoliation and reversible edge interaction introduce no additional functional groups to the exfoliated BNNSs. The resulting pristine BNNS exhibit remarkable stability in TfOH solutions at ultrahigh concentrations of 200 mg mL⁻¹ for over 28 days. The viscosity of the highly concentrated BNNS/TfOH dispersion can be adjusted, enabling techniques to produce BNNS-based spheres, fibers, and membranes with high thermal conductivity and mechanical strength, suitable for advanced thermal management applications. Room temperature processed BNNS-based spheres exhibit superior thermal conductivity compared to high temperature processed commercially available hBN or Al₂O₃ spheres. Moreover, TfOH can also be used to assist the efficient production and solution-processing of other 2D nanosheets, including graphene, molybdenum disulfide and tungsten disulfide, enabling the fabrication of high-quality bulk assemblies.</div></div>","PeriodicalId":387,"journal":{"name":"Materials Today","volume":"86 ","pages":"Pages 228-237"},"PeriodicalIF":21.1,"publicationDate":"2025-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144070573","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}

{"title":"Unveiling the structural transformations in glassy solid electrolyte adapted to high-stress cycles","authors":"Sergiy Kalnaus ,&nbsp;Guang Yang ,&nbsp;Erik G. Herbert ,&nbsp;Andrew S. Westover","doi":"10.1016/j.mattod.2025.03.023","DOIUrl":"10.1016/j.mattod.2025.03.023","url":null,"abstract":"<div><div>Brittleness of glass–ceramic and ceramic ion conductors is considered as a main roadblock for their implementation as electrolytes in solid-state batteries where the fractures often occur due to the pressure exerted by metallic lithium. In this regard, nano- and micro-scale ductility of the solid electrolyte allows reducing such pressure without formation of cracks. Among different types of solid state ion conductors, phosphate invert glasses seem to be promising in achieving such ductility. We report the mechanical behavior of lithium phosphorous oxynitride (LiPON) invert glass probed by static and cyclic nanoindentation. Repeated application of high intensity stress results in densification and shear deformation of material allowing LiPON to accommodate the <span><math><mrow><mo>∼</mo></mrow></math></span> 22% nominal strain imposed by the nanoindenter without cracking. Ability to do this under repeated loading indicates robustness of LiPON when used in lithium metal batteries under cyclic charge and discharge. Using Raman spectroscopy with unsupervised K-means clustering we reveal pressure-induced formation of <span><math><mrow><msub><mrow><mi>P</mi></mrow><mrow><mn>2</mn></mrow></msub><msub><mrow><mi>O</mi></mrow><mrow><mn>7</mn></mrow></msub></mrow></math></span> units which migrate to the periphery of the residual hardness impressions with cycling resulting in surface morphology of LiPON superficially similar to that of deformed bulk metallic glass.</div></div>","PeriodicalId":387,"journal":{"name":"Materials Today","volume":"86 ","pages":"Pages 580-587"},"PeriodicalIF":21.1,"publicationDate":"2025-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144071412","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}

{"title":"Bismuth oxide electrolytes with superior conductivity and stability","authors":"Adam G. Jolley,&nbsp;Qiang Bai,&nbsp;Rishvi Jayathilake,&nbsp;Yifei Mo,&nbsp;Eric D. Wachsman","doi":"10.1016/j.mattod.2025.03.030","DOIUrl":"10.1016/j.mattod.2025.03.030","url":null,"abstract":"<div><div>Higher conductivity electrolytes are imperative for the reduction of operating temperature and increased viability of numerous solid-state oxygen-ion conducting technologies. Unfortunately, the highest oxygen ion conducting electrolyte, doped cubic bismuth oxide, is only useable above 600 °C due to anion ordering below this temperature. Reported herein, we have tailored the structure of the bismuth oxide electrolyte to allow functionality at both high and low temperatures. At higher temperatures (≥600 °C), we have demonstrated a cubic Bi₂O₃ with the highest oxygen-ion conductivity ever recorded for a phase stable (demonstrated for 100 h of operation at 650 °C) electrolyte. Meanwhile, at lower temperatures (&lt;600 °C), a rhombohedral Bi₂O₃ electrolyte was developed with exceptional stability, exhibiting no observable conductivity decay for 100 h of aging at 500 °C, thus making it the highest oxygen ion conducting electrolyte with stable performance for lower temperature solid oxide cells (SOCs).</div></div>","PeriodicalId":387,"journal":{"name":"Materials Today","volume":"86 ","pages":"Pages 247-254"},"PeriodicalIF":21.1,"publicationDate":"2025-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144071305","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}

{"title":"Chromogenic materials in building energy efficiency: application trends, suitability assessment and future prospects","authors":"Xiangru Kong ,&nbsp;Xiangquan Wang ,&nbsp;Zhengkuan He ,&nbsp;Hongbin Zhao ,&nbsp;Yan Wang ,&nbsp;Wanxiang Yao ,&nbsp;Xiaopeng Fan ,&nbsp;Chenxi Hu ,&nbsp;Weijun Gao","doi":"10.1016/j.mattod.2025.03.033","DOIUrl":"10.1016/j.mattod.2025.03.033","url":null,"abstract":"<div><div>With the continuous development of urbanization, building energy consumption is escalating, and the strategy of using chromogenic materials to optimize surface colors in buildings provides more possibilities for energy savings. Currently, most related research focuses on the performance and applications of chromogenic materials without considering their applicability. This paper first investigates three types of chromogenic materials in buildings (photochromic, thermochromic, and electrochromic materials), categorizes them, and explores their color-changing mechanisms. It elaborates on their current applications in building envelope structures. Secondly, based on weather conditions and temperature variations in 100 typical cities in China, this study introduces the weather scaling index (WSI) and diurnal temperature index (DTI) to quantitatively assess the suitability of chromogenic materials in different regions of China. Finally, using WSI and DTI, a chromogenic material applicability (CMA) model is developed to provide scientific guidance for regions and climatic zones globally suitable for adopting chromogenic materials. The research results indicate that regions characterized by low latitude, high altitude, and significant daily temperature differences are more suitable for deploying chromogenic materials. By comprehensively considering the characteristics, mechanisms, solar radiation intensity, and temperature distribution of chromogenic materials, this paper quantitatively analyzes the application prospects of these materials in different regions, providing a theoretical basis for evaluating building energy consumption and promoting the widespread application of chromogenic materials in building energy conservation.</div></div>","PeriodicalId":387,"journal":{"name":"Materials Today","volume":"86 ","pages":"Pages 482-521"},"PeriodicalIF":21.1,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144070870","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}

{"title":"Formative manufacturing of heterogeneous composite plates: a review","authors":"Jia Yang Zhang ,&nbsp;Feng Li ,&nbsp;Wen Tao Niu ,&nbsp;Zi Yi Wang ,&nbsp;Mu Zi Cao","doi":"10.1016/j.mattod.2025.04.002","DOIUrl":"10.1016/j.mattod.2025.04.002","url":null,"abstract":"<div><div>The integration of superior characteristics from individual components achievable in heterogeneous composite plates can be achieved through optimal material configuration and combination methods. This approach results in significant enhancements in physical, mechanical, and forming properties when compared to traditional single metal plates. However, challenges such as prolonged manufacturing cycles and the complexity of coordinating interface characteristics and microstructural properties impede the rapid advancement and widespread adoption of heterogeneous composite plate manufacturing. This study offers a comprehensive overview of the primary forming methods for heterogeneous composite plates, including rolling, extrusion, welding, hot pressing, and additive manufacturing. It addresses current challenges and anticipates potential developmental directions, such as the application of specialized energy field-assisted forming techniques and the design of heterogeneous microstructures. The exploration of new resources, the expansion of innovative concepts, the establishment of novel models, the promotion of new principles, and the adoption of transformative technologies are essential for the breakthrough development of heterogeneous composite plate manufacturing. Aligning with the national innovation-driven development strategy and the requirements of major national projects remains a fundamental objective of this research direction.</div></div>","PeriodicalId":387,"journal":{"name":"Materials Today","volume":"86 ","pages":"Pages 548-574"},"PeriodicalIF":21.1,"publicationDate":"2025-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144070867","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}

{"title":"Piezoelectric-driven self-charging energy storage systems: From fundamental materials to emerging applications","authors":"Yueming Lin,&nbsp;Dan Mou,&nbsp;Xingrui Pu,&nbsp;Bo Li,&nbsp;Laiming Jiang,&nbsp;Xiaohong Zhu","doi":"10.1016/j.mattod.2025.03.027","DOIUrl":"10.1016/j.mattod.2025.03.027","url":null,"abstract":"<div><div>With the widespread deployment of fifth-generation mobile communication technologies and cutting-edge microchips, the development of new electronics is undergoing significant transformation, particularly with the emergence of wearable and implantable devices. To address power supply challenges, such devices require adaptable energy systems that can meet their performance demands. Piezoelectric-driven self-charging energy storage systems (PS-ESS) are an emerging integrated energy technology that combines energy conversion and energy storage in a single unit eliminating the need for external charging circuits. As a result, they have garnered considerable attention. PS-ESS can harvest and store mechanical energy from various sources, including, but not limited to, activities like finger tapping, walking, and joint bending, making them promising candidates for powering smart devices. Despite rapid advancements in PS-ESS, a comprehensive review covering the theoretical challenges, engineering obstacles related to materials and device construction, and potential applications is still lacking. In this review, we summarize recent progress in PS-ESS, with a focus on self-charging mechanisms, piezo-component fabrication strategies, and emerging applications in wearable and implantable health-monitoring electronics. Finally, we discuss the challenges that must be addressed to advance PS-ESS technology, as well as future perspectives.</div></div>","PeriodicalId":387,"journal":{"name":"Materials Today","volume":"86 ","pages":"Pages 414-451"},"PeriodicalIF":21.1,"publicationDate":"2025-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144070869","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}

{"title":"How amorphous CoOx(OH)y-Pd nanocomposite endows high performance and durability in methanol oxidation reaction","authors":"Zhao Yang ,&nbsp;Tianqi Guo ,&nbsp;Qi Hu ,&nbsp;Juzhe Liu ,&nbsp;Xiangyu Chen ,&nbsp;Yu Wang ,&nbsp;Li-Min Liu ,&nbsp;Zhongchang Wang ,&nbsp;Lin Guo","doi":"10.1016/j.mattod.2025.03.032","DOIUrl":"10.1016/j.mattod.2025.03.032","url":null,"abstract":"<div><div>One key issue in designing electrocatalysts for methanol oxidation reaction (MOR) is to improve their durability because the dissociative adsorption of methanol molecule could produce CO-like intermediate to poison catalysts. Here, we propose a wet chemical route to anchor Pd nanoparticles on amorphous CoO_x(OH)_y nanoplates and show that such amorphous support prefers to bind OH from electrolyte during electrochemical reaction to increase surface OH coverage, helping remove the poisonous intermediates and recover active sites. Besides, the oxygen vacancies in the amorphous CoO_x(OH)_y enable to produce excess electrons that are transferred to Pd to facilitate rate-determining step of MOR. Furthermore, we have verified the synergistic effect between Pd species and the amorphous CoO_x(OH)_y nanoplate would generate more reactive oxygen species than the individual component catalyst to further enhance MOR activity. Consequently, the amorphous CoO_x(OH)_y-Pd nanocomposites deliver more excellent electrocatalytic performance of ∼7100 mA mg_Pd⁻¹ and higher stability by retaining 86 % activity after 400 electrochemical cycles than Pd-loaded crystalline Co(OH)₂ nanoplates. Notably, the leaching out of Pd component was overcome in our study, this catalyst can even work for more than 100 h without obvious activity loss. Such a strategy by integrating noble metal component with amorphous support shall open up a new avenue in smart design of MOR nanocatalysts with simplified synthesis routes and high activity yet low cost.</div></div>","PeriodicalId":387,"journal":{"name":"Materials Today","volume":"86 ","pages":"Pages 255-266"},"PeriodicalIF":21.1,"publicationDate":"2025-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144071406","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}

{"title":"Biofabrication of engineered tissues by 3D bioprinting of tissue specific high cell-density bioinks","authors":"Oju Jeon ,&nbsp;Hyoeun Park ,&nbsp;J. Kent Leach ,&nbsp;Eben Alsberg","doi":"10.1016/j.mattod.2025.03.021","DOIUrl":"10.1016/j.mattod.2025.03.021","url":null,"abstract":"<div><div>Bioprinting of high cell-density bioinks is a promising technique for cellular condensation-based tissue engineering and regeneration medicine. However, it is still difficult to create precisely controlled complex structures and organization of tissues with high cell-density bioink-based bioprinting for tissue specific condensation. In this study, we present newly biofabricated tissues from directly assembled, tissue specific, high cell-density bioinks which have been three-dimensionally printed into a photocrosslinkable and biodegradable hydrogel microparticle supporting bath. Three types of tissue specific high cell-density bioinks have been prepared with individual stem cells or stem cell aggregates by incorporation of growth factor-loaded gelatin microparticles. The bioprinted tissue specific high cell-density bioinks in the photocrosslinked microgel supporting bath condense together and differentiate down tissue-specific lineages to form multi-phase tissues (e.g., osteochondral tissues). By changing the growth factors and cell types, these tissue specific high cell-density bioinks enable engineering of various functional tissues with controlled architecture and organization of cells.</div></div>","PeriodicalId":387,"journal":{"name":"Materials Today","volume":"86 ","pages":"Pages 172-182"},"PeriodicalIF":21.1,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144071251","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}

{"title":"Bioinks with varying densities of physical and chemical crosslinks modulate cellular responses in 3D by altering the viscoelasticity of the cell microenvironment","authors":"Luís B. Bebiano ,&nbsp;Rafaela Presa ,&nbsp;Luís Fernandes ,&nbsp;Bianca N. Lourenço ,&nbsp;Ovijit Chaudhuri ,&nbsp;Rúben F. Pereira","doi":"10.1016/j.mattod.2025.03.019","DOIUrl":"10.1016/j.mattod.2025.03.019","url":null,"abstract":"<div><div>The biological function and clinical translation of bioprinted cell-laden constructs largely depend on the bioink printability and biomechanical cues presented to embedded cells. Despite multiple biomaterials and crosslinking reactions have been explored for bioink design, how the type and density of crosslinks used in bioink development determine the relationship between bioink printability and viscoelasticity, and how in turn the resulting alterations in viscoelasticity regulate cell behavior within 3D bioprinted constructs remain largely unknown. Here, we developed double crosslinked bioinks with controllable printability and time-dependent mechanical properties by varying the density of reversible (ionic) to static (thioether) crosslinks in the gel network. We utilized these bioinks to investigate how the altered density of physical and chemical crosslinks affects the viscoelasticity of bioprinted cell constructs and how they regulate fundamental cellular responses in 3D. From our results, it was evident that increased density of reversible bonds in bioprinted constructs significantly promotes not only rapid cell spreading, but also the formation of interconnected cellular networks by enhancing matrix viscoelasticity and stress relaxation. By co-printing bioinks whose viscoelasticity can be adjusted independently from its cell-adhesiveness by varying the degree of covalent crosslinking via photoclick thiol-ene reaction, we showed that cell spreading and morphology are spatially regulated in step-gradient hydrogels by the viscoelasticity of their surrounding environment. Our findings reveal that bioinks with similar printability elicit distinct cell responses in bioprinted 3D constructs via altered matrix viscoelasticity, which is determined by the type and density of crosslinks employed for bioink crosslinking. Taken together, these results underscore matrix viscoelasticity as a key parameter in the rational design of mechano-instructive bioinks for bioprinting applications in tissue repair and in vitro tissue modelling.</div></div>","PeriodicalId":387,"journal":{"name":"Materials Today","volume":"86 ","pages":"Pages 146-161"},"PeriodicalIF":21.1,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144071250","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}

{"title":"High voltage stable LiCoO2 enabled by surface strengthening and bulk doping","authors":"Si-Dong Zhang ,&nbsp;Jun Wang ,&nbsp;Nicholas S. Grundish ,&nbsp;Yongxin Cheng ,&nbsp;Mu-Yao Qi ,&nbsp;Sijie Guo ,&nbsp;Yutao Li ,&nbsp;An-Min Cao","doi":"10.1016/j.mattod.2025.03.029","DOIUrl":"10.1016/j.mattod.2025.03.029","url":null,"abstract":"<div><div>Enhancing the operating voltage of LiCoO₂ (LCO) beyond 4.45 V significantly enhances the energy density of rechargeable Li-ion batteries; however, it also intensifies interfacial reactions, induces phase transitions, and promotes surface oxygen loss, leading to fast capacity decay. Here, we present a robust strategy to achieve stable cycling of LCO cathode above 4.6 V by integrating surface and bulk modifications through a wet chemical approach, which forms a conformal Ni₃(PO₄)₂ nanoshell around LCO particles; the subsequent heat treatment induces Ni²⁺ doping into the bulk and PO₄^3- modification on the surface, resulting in a thin rock-salt-like phase and a protective Li₃PO₄ layer. These modifications mitigate irreversible phase transitions and parasitic reactions, resulting in significantly improved stability; the modified LCO demonstrates 98.2 % capacity retention at 4.6 V (88.1 % at 4.7 V) after 100 cycles at 1C in half-cells and achieves 80 % retention over 346 cycles in 4.6 V LCO/graphite full cell. This work highlights the critical role of integrated lattice and surface engineering in advancing layered oxide cathodes and provides valuable insights for developing high-energy–density Li-ion batteries.</div></div>","PeriodicalId":387,"journal":{"name":"Materials Today","volume":"86 ","pages":"Pages 238-246"},"PeriodicalIF":21.1,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144070598","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}