Journal of Materials Science最新文献_第9页

High-efficiency photocatalytic degradation of 2-MBT under visible light using montmorillonite-modified Bi3O4Br catalysts 蒙脱石改性Bi3O4Br催化剂在可见光下高效光催化降解2-MBT

IF 3.5 3区材料科学

Journal of Materials Science Pub Date : 2025-03-20 DOI: 10.1007/s10853-025-10791-z

Xuefeng Hu, Chao Wang, Junhan Yang

{"title":"High-efficiency photocatalytic degradation of 2-MBT under visible light using montmorillonite-modified Bi3O4Br catalysts","authors":"Xuefeng Hu, Chao Wang, Junhan Yang","doi":"10.1007/s10853-025-10791-z","DOIUrl":"10.1007/s10853-025-10791-z","url":null,"abstract":"<div><p>2-Mercaptobenzothiazole (2-MBT) is a prevalent organic pollutant in the environment that poses significant challenges for complete removal using conventional water treatment methods. In this study, we successfully synthesized Bi<sub>3</sub>O<sub>4</sub>Br/MMT composites by incorporating the clay mineral montmorillonite (MMT), which effectively addresses the issues of low specific surface area and poor adsorption performance commonly observed in traditional Bi<sub>3</sub>O<sub>4</sub>Br materials. Furthermore, the aluminum species in MMT facilitate the transfer of photogenerated electrons from Bi<sub>3</sub>O<sub>4</sub>Br to MMT, thereby inhibiting the recombination of electron–hole pairs and enhancing photocatalytic performance. The photocatalytic properties of the photocatalyst were appraised using 2-MBT as the target contaminant. The Bi<sub>3</sub>O<sub>4</sub>Br/MMT composites demonstrated a remarkable degradation efficiency of nearly 90% for 2-MBT within just 3 min of visible-light irradiation, surpassing 99% after 7 min, along with exceptional cycling stability and structural integrity. Quenching experiments and electron paramagnetic resonance (EPR) analysis identified superoxide radicals (·O<sub>2</sub><sup>−</sup>), holes (h<sup>+</sup>), and electrons (e<sup>−</sup>) as the primary reactive species driving the photocatalytic degradation of 2-MBT. This work provides a promising strategy for the development of environmentally friendly catalytic systems for the efficient degradation of 2-MBT in water.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"60 12","pages":"5365 - 5380"},"PeriodicalIF":3.5,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143726735","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Exploring electro-optical properties of novel two-dimensional disilicon carbide through strain engineering 利用应变工程技术探索新型二维碳化硅的电光特性

IF 3.5 3区材料科学

Journal of Materials Science Pub Date : 2025-03-20 DOI: 10.1007/s10853-025-10793-x

Huabing Shu

{"title":"Exploring electro-optical properties of novel two-dimensional disilicon carbide through strain engineering","authors":"Huabing Shu","doi":"10.1007/s10853-025-10793-x","DOIUrl":"10.1007/s10853-025-10793-x","url":null,"abstract":"<div><p>Based on theoretical calculations (PBE + <i>G</i><sub>0</sub><i>W</i><sub>0</sub> + BSE), novel two-dimensional bisilicon carbide (Si<sub>2</sub>C) monolayer is systematically investigated under biaxial strains. The stability of pristine Si<sub>2</sub>C monolayer has been confirmed by its phonon spectrum, and its dynamic stability can be kept across a broad strain range. The explored monolayer exhibiting a buckling configuration is predicted to be an indirect semiconductor with a moderate energy gap. The nature and magnitude of the bandgap can be significantly modulated through strain engineering, wherein a tensile strain of + 3.2% induces an indirect-direct bandgap transition. In addition, pristine Si<sub>2</sub>C monolayer shows a significant light absorption (> 10<sup>6</sup> cm<sup>−1</sup>) for the visible part of incident solar radiation. Tensile strain can induce a prominent red-shift in the optical spectrum and significantly enhance near-infrared light absorption. As a result, the strain-tuned properties of novel Si<sub>2</sub>C monolayer render it a promising semiconductor for optoelectronic applications.</p><h3>Graphical abstract</h3><p>Electro-optical properties of novel two-dimensional disilicon carbide under strains.</p>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"60 12","pages":"5459 - 5472"},"PeriodicalIF":3.5,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143726736","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Advancements, prospects, and challenges in the synthesis and stability of MXenes for energy applications: a comprehensive review 能源用MXenes合成与稳定性研究进展、前景与挑战综述

IF 3.5 3区材料科学

Journal of Materials Science Pub Date : 2025-03-20 DOI: 10.1007/s10853-025-10728-6

R. Indhumathi, A. Sathiya Priya, Radhamanohar Aepuru, Krishnamoorthy Shanmugaraj

{"title":"Advancements, prospects, and challenges in the synthesis and stability of MXenes for energy applications: a comprehensive review","authors":"R. Indhumathi, A. Sathiya Priya, Radhamanohar Aepuru, Krishnamoorthy Shanmugaraj","doi":"10.1007/s10853-025-10728-6","DOIUrl":"10.1007/s10853-025-10728-6","url":null,"abstract":"<div><p>MXenes are two-dimensional (2D) transition metal carbides, carbonitrides, and nitrides, often terminated with functional groups such as oxygen, hydroxyl, or fluorine, which enhance their hydrophilicity. These materials are derived from the selective etching of 'A' element atomic layers from MAX phases in acidic solutions containing aqueous fluoride. The unique chemistry and morphology of MXenes enable their use in a variety of applications, including energy storage, electromagnetic interference shielding, antibacterial activity, water nanofiltration, reinforcement, nuclear waste management, and catalysis. This review provides a comprehensive overview of the synthesis of MXenes, their structure, intercalation, delamination, and properties, offering a thorough understanding of the relationship between their nanostructure and electrochemical performance. This understanding is crucial for advancing the study of 2D MXenes in energy harvesting applications. MXene-based energy devices have garnered significant attention in fields such as medicine and industry. However, there are challenges in developing MXene-based sensors, solar cells, photodetectors, batteries, and supercapacitors with high sensitivity, mechanical stability, and long lifetimes. In this work, we present the methods of MXene preparation, computational analyses, and the resulting morphology and electrical properties. The findings from both computational and experimental approaches influence their applications. Specifically, MXene-based sensors exhibit high sensitivity, solar cells demonstrate high efficiency, and batteries offer long lifetimes and excellent mechanical stability. These exceptional properties make MXenes highly suitable for use in advanced wearable devices.</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"60 13","pages":"5649 - 5685"},"PeriodicalIF":3.5,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143784291","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Molecular dynamics investigation of friction properties in FeCoNiTi high-entropy alloy coatings on titanium substrate 钛基上FeCoNiTi高熵合金涂层摩擦性能的分子动力学研究

IF 3.5 3区材料科学

Journal of Materials Science Pub Date : 2025-03-20 DOI: 10.1007/s10853-025-10781-1

Junqiang Ren, Yuxiang Ge, Wei Li, Qing Gao, Qi Wang, Junchen Li, Hongtao Xue, Xuefeng Lu

{"title":"Molecular dynamics investigation of friction properties in FeCoNiTi high-entropy alloy coatings on titanium substrate","authors":"Junqiang Ren, Yuxiang Ge, Wei Li, Qing Gao, Qi Wang, Junchen Li, Hongtao Xue, Xuefeng Lu","doi":"10.1007/s10853-025-10781-1","DOIUrl":"10.1007/s10853-025-10781-1","url":null,"abstract":"<div><p>Titanium (Ti) and Ti alloys are widely used in many important fields due to their excellent mechanical properties and corrosion resistance. However, due to their poor wear resistance, they are difficult to adapt to the complex service environment. The wear resistance of titanium-substrate materials can be effectively improved through surface coating technology. The friction performance of Ti-substrate Fe<sub>0.05</sub>Co<sub>0.4</sub>Ni<sub>0.5</sub>Ti<sub>0.05</sub> high-entropy coating was investigated by molecular dynamics. The results show that the increase of friction depth <i>D</i> has a great influence on the tangential force and normal force, and leads to the increase of friction coefficient. The friction velocity <i>V</i> has limited effects on the tangential force, normal force, and friction coefficient of the three interfaces. The (001)<sub>HEA</sub>||(<span>(1overline{1})</span>00)<sub>Ti</sub> interface model has the smallest friction coefficient, the best wear resistance, and the smallest maximum stacking height and atomic loss ratio. When subjected to friction, the HEA coating absorbs and releases stress and activates dislocations during this process. The stacking faults caused by dislocation movement are mainly located in the HEA coating. This mechanism reduces the stress and defect depth in the Ti matrix, and effectively prevents the damage caused by friction to the lattice structure of the Ti matrix. At the same time, a large number of stationary dislocations are generated during the friction process, and tangles are formed, resulting in work hardening and improving the strength and hardness of the coating.</p></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"60 12","pages":"5442 - 5458"},"PeriodicalIF":3.5,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143726723","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Engineering Co–N–C active sites with non-traditional nitrogen coordination to enhance oxygen electrocatalysis for liquid/flexible Zn–air batteries 利用非传统氮配位设计Co-N-C活性位点，增强液态/柔性锌空气电池的氧电催化能力

IF 3.5 3区材料科学

Journal of Materials Science Pub Date : 2025-03-19 DOI: 10.1007/s10853-025-10776-y

Zhong Qi, Di Liu, Haoran Li, YuXia Wang, Huayi Li, Peng Pan, Jie He, Lingcheng Zheng, Hong Dong, Rui Zhang, Zhengchun Yang

{"title":"Engineering Co–N–C active sites with non-traditional nitrogen coordination to enhance oxygen electrocatalysis for liquid/flexible Zn–air batteries","authors":"Zhong Qi, Di Liu, Haoran Li, YuXia Wang, Huayi Li, Peng Pan, Jie He, Lingcheng Zheng, Hong Dong, Rui Zhang, Zhengchun Yang","doi":"10.1007/s10853-025-10776-y","DOIUrl":"10.1007/s10853-025-10776-y","url":null,"abstract":"<div><p>Overcoming the challenges of high cost and poor durability associated with the use of precious metal catalysts in Zn–air batteries, metal–nitrogen–carbon (M–N–C) has emerged as one of the promising alternatives for their good oxygen reduction reaction and oxygen evolution reaction properties, low price and simple preparation process. However, the quantity of M–N–C active sites formed through the conventional method of the metal elements and N co-doped graphene is quite limited, leading to a significant discrepancy between the battery performance and the theoretical values. Herein, we propose a non-traditional nitrogen coordination method to achieve the increase of Co–N–C active sites by retaining N atoms, accompanied by the generation of Co nanoparticles. Benefiting from the synergistic effect of Co–N–C sites and Co nanoparticles, the g-C<sub>3</sub>N<sub>4</sub>–Co<sub>0.6</sub> shows a higher limiting current density (4.81 mA cm<sup>−2</sup>) and a lower Δ<i>E</i> (0.90 V), and the assembled liquid Zn–air battery (LZAB) has a higher power density (77.69 mW cm<sup>−2</sup>) and an excellent specific capacity (723.05 mAh g<sup>−1</sup>). In addition, the assembled flexible Zn–air battery (FZAB) has a significant power density (29.71 mW cm<sup>−2</sup>) as well as good mechanical flexibility and cycle stability. This work provides insights into improving electrochemical performance from the perspective of constructing active sites.</p></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"60 12","pages":"5483 - 5498"},"PeriodicalIF":3.5,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143726719","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Ni-substitution inducing defect of GaN for highly efficient lithium ion battery 高效锂离子电池用氮化镓的镍取代诱导缺陷

IF 3.5 3区材料科学

Journal of Materials Science Pub Date : 2025-03-19 DOI: 10.1007/s10853-025-10753-5

Ruishan Yang, Liquan Pan, Yan-Jie Wang, Yifan Lai, Zibo Zhai, Changlong Sun, Wenfang Li

{"title":"Ni-substitution inducing defect of GaN for highly efficient lithium ion battery","authors":"Ruishan Yang, Liquan Pan, Yan-Jie Wang, Yifan Lai, Zibo Zhai, Changlong Sun, Wenfang Li","doi":"10.1007/s10853-025-10753-5","DOIUrl":"10.1007/s10853-025-10753-5","url":null,"abstract":"<div><p>Gallium nitride (GaN) exhibits high theoretical capacity and low discharge potential, but unsatisfactory cycle performance resulting from the low conduction restrict its utilization in lithium-ion batteries (LIBs). In this work, Ni-substituted GaN nanowires (Ni-GaN NWs) were successfully prepared a chemical vapor deposition method. The as-prepared Ni-GaN NWs display modified surface electronic structure resulting from the generated defects and lattice strain, which is favorable of the rapid ions transfer. Notably, this Ni-GaN NWs electrode material exhibits a high capacity of 660.8 mAh g<sup>−1</sup> at 0.1 A g<sup>−1</sup> running 400 cycles. This work provides the possibility to fabricate high-performance GaN-based LIB anode materials.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div><div><p>Ni-substituted GaN nanowires (Ni-GaN NWs) are fabricated successfully by tailoring the structural defects and lattice strain in a CVD process, which can favor the rapid ion transfer and thereby enhance the capacity and stability.</p></div></div></figure></div></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"60 12","pages":"5473 - 5482"},"PeriodicalIF":3.5,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143726720","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Invited viewpoint: on the term “High Entropy Alloys” 特邀观点：关于“高熵合金”一词

IF 3.5 3区材料科学

Journal of Materials Science Pub Date : 2025-03-19 DOI: 10.1007/s10853-025-10691-2

Philip Nash, Ricardo Schwarz, Irina A. Uspenskaya, Dmitry S. Tsvetkov, Alexandra V. Khvan

引用次数: 0

The triboelectric nanogenerators based on the mace-like Cu2WS4@ZnO heterojunction for electrocatalytic degradation 基于簇状Cu2WS4@ZnO异质结的摩擦电纳米发电机的电催化降解

IF 3.5 3区材料科学

Journal of Materials Science Pub Date : 2025-03-19 DOI: 10.1007/s10853-025-10785-x

Long Qi, Jian Wang, Fei Ning, Ping Yang, Xibei Jia, Jiangtao Chen, Jianbiao Chen, Xuqiang Zhang

{"title":"The triboelectric nanogenerators based on the mace-like Cu2WS4@ZnO heterojunction for electrocatalytic degradation","authors":"Long Qi, Jian Wang, Fei Ning, Ping Yang, Xibei Jia, Jiangtao Chen, Jianbiao Chen, Xuqiang Zhang","doi":"10.1007/s10853-025-10785-x","DOIUrl":"10.1007/s10853-025-10785-x","url":null,"abstract":"<div><p>It is an innovative issue to degrade the organic pollutants in sea water by using ocean energy. The triboelectric nanogenerator (TENG) provides an ideal way to perform the idea. However, the output power of TENG is still insufficient for electrocatalytic degradation. In the paper, the mace-like core–shell Cu<sub>2</sub>WS<sub>4</sub>@ZnO heterojunction was prepared by a simple hydrothermal method. After mixed with PVDF and injected into the Ni(OH)<sub>2</sub>/Ni foam with nano-needle array, the Cu<sub>2</sub>WS<sub>4</sub>@ZnO-PVDF/Ni(OH)<sub>2</sub> positive triboelectric layer with interspersed Ni foam electrode was formed. Then it was used to assemble the TENG with the negative triboelectric layer of nylon film on Cu sheet electrode. Obviously, the interspersed electrode and the inner embedded nano-needle array greatly increase the electrode area and decrease the effective dielectric thickness, the Cu<sub>2</sub>WS<sub>4</sub>@ZnO heterojunction induces obvious space-charge polarization and further increases the dielectric constant. All these innovative measures increase the instantaneous V<sub>OC</sub> from 27.4 to 516.2 V, and the instantaneous J<sub>SC</sub> from 0.23 to 0.82 mA/m<sup>2</sup>. Then, the generated charges by TENG were successfully applied to degrade the typical dye polymers into harmless small molecules.</p></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"60 12","pages":"5499 - 5510"},"PeriodicalIF":3.5,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143726722","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Creep-fatigue properties and life prediction of TP321 austenitic stainless steel at high temperature TP321奥氏体不锈钢高温蠕变疲劳性能及寿命预测

IF 3.5 3区材料科学

Journal of Materials Science Pub Date : 2025-03-18 DOI: 10.1007/s10853-025-10765-1

Chong Zhen, Chenwei Zhang, Shanghao Chen, Hongchang Wang, Ling Li, Junsen Lin, Lijia Luo, Shiyi Bao, Xujia Wang

{"title":"Creep-fatigue properties and life prediction of TP321 austenitic stainless steel at high temperature","authors":"Chong Zhen, Chenwei Zhang, Shanghao Chen, Hongchang Wang, Ling Li, Junsen Lin, Lijia Luo, Shiyi Bao, Xujia Wang","doi":"10.1007/s10853-025-10765-1","DOIUrl":"10.1007/s10853-025-10765-1","url":null,"abstract":"<div><p>TP321 austenitic stainless steel exhibits excellent strength, toughness, and high-temperature corrosion resistance, making it a preferred material for critical components in high-temperature environments, particularly within the nuclear industry. When a nuclear power plant is operated in a high-temperature environment, its critical components are subjected to creep-fatigue interaction. In order to study the creep-fatigue performance of TP321 austenitic stainless steel at high temperatures, creep-fatigue tests are conducted and combine with microstructure inspection to analyze the effects of temperature, holding time and strain amplitude on the deformation and damage behavior of TP321 austenitic stainless steel. Then, three different life prediction models are used to predict the life of the creep-fatigue tests. The results show that increasing the test temperature, holding time and strain amplitude decreases the creep-fatigue life of the material. A tendency for cracks and cavities to promote each other’s expansion is observed, which is an important reason for the decrease in creep-fatigue life. Of the three life prediction models, the modified strain energy density (MSEDE) exhaustion model gives the most accurate lifespan prediction.</p></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"60 12","pages":"5603 - 5622"},"PeriodicalIF":3.5,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143726716","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Structural and dielectric performance study of microencapsulated graphene-reinforced silicone foam elastomer composites 微胶囊化石墨烯增强有机硅泡沫弹性体复合材料的结构和介电性能研究

IF 3.5 3区材料科学

Journal of Materials Science Pub Date : 2025-03-18 DOI: 10.1007/s10853-024-10579-7

Lei Wang, Haidong Liu, Lei Gong, Yong Cao, Yonghui Cao, Jiarun Hou

{"title":"Structural and dielectric performance study of microencapsulated graphene-reinforced silicone foam elastomer composites","authors":"Lei Wang, Haidong Liu, Lei Gong, Yong Cao, Yonghui Cao, Jiarun Hou","doi":"10.1007/s10853-024-10579-7","DOIUrl":"10.1007/s10853-024-10579-7","url":null,"abstract":"<div><p>Lightweight and flexible materials with high dielectric constant and low dielectric loss are highly desirable for capacitor energy storage applications. In this study, a new class of microencapsulated graphene-reinforced silicone elastomer foam composite with excellent dielectric properties is presented. The silicone elastomer/graphene composite was prepared through foaming. The interfacial compatibility between silicone elastomer and graphene was enhanced by microencapsulated graphene, with graphene as the core and MF as the shell, through in-situ grafting reactions. The best microencapsulated graphene with a “salt-like” substance was achieved at a dispersing power of 840 W, a ratio of graphene to emulsifier of 1:100, and a mass ratio of graphene to wall material MF of 1:10. The silicone elastomer foam composite with optimized microencapsulated graphene content displays a dielectric constant of 27.26 @1000 Hz ~ 10 MHz with a significantly improved dielectric loss of @1000 Hz ~ 10 MHz, which is 2.45 times greater than the dielectric constant of graphene/silicone elastomer composite. This performance originates from the synergistic effect of micropore and microencapsulated. This interaction reaches its peak when the content of microencapsulated graphene is increased to 2.0 wt%, resulting in a dielectric constant of 48.26. The optimization of high-electric-constant foam composite will have far-reaching impacts on the sustainable energy and will be an important research topic in the near future.</p></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"60 12","pages":"5381 - 5398"},"PeriodicalIF":3.5,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143726717","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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