Advanced Composites and Hybrid Materials最新文献

{"title":"Highly porous hollow 3D devices obtained by a combined melt-wet processing for long-term controlled release","authors":"Marta Balsamo,&nbsp;Maria Chiara Mistretta,&nbsp;Roberto Scaffaro","doi":"10.1007/s42114-025-01255-8","DOIUrl":"10.1007/s42114-025-01255-8","url":null,"abstract":"<div><p>The possibility to obtain resistant and reusable hollow devices with differentiated high porosity for storage and tunable long-term controlled release of substances is difficult to achieve efficiently. To solve this problem, we propose a combined melt-wet processing, which allows predictable and tunable morphologies. The process consists in combining Material Extrusion (MEX) with an eco-friendly salt leaching in distilled water, by using a biostable polymer and high percentages of saline porogen. Three blends with PA6/NaCl-30/70wt% composition were extruded, varying the salt particles size, that shows good dispersion in all the filaments, with a spontaneous tendency for bigger particles to accumulate in the central region of the cross-sections, attributable to fluid-dynamic reasons. Blends rheological and mechanical properties appeared suitable for the printing process. The hollow devices were then printed and successfully leached, resulting in homogeneously dispersed pores, with size ranges comparable to those of the porogen for each blend; therefore, the morphology of the pores can be directly predicted by the porogen and it was not altered during processing. Leaching occurred completely, in fact the real porosity for each device was consistent with the theoretical one. Despite the high percentage of voids, the hollow devices appeared to be mechanically resistant and therefore suitable for the application. Controlled release up to 11 days of a model molecule (methylene blue) was tested and predictable kinetics related to pore size were achieved so, therefore, they are easily tunable and versatile. Release data were fitted according to Peppas-Korsmeyer-model to describe the release mechanism related to porosity.</p></div>","PeriodicalId":7220,"journal":{"name":"Advanced Composites and Hybrid Materials","volume":"8 2","pages":""},"PeriodicalIF":23.2,"publicationDate":"2025-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s42114-025-01255-8.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143388887","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":"Understanding double perovskite BCNF as a CO2 splitting catalyst for industrial decarbonisation","authors":"Weiwei Zhao,&nbsp;Hongkun Ma,&nbsp;Zixuan Wang,&nbsp;Benjamin Grégoire,&nbsp;Ao Lin,&nbsp;Siyuan Dai,&nbsp;Xuefeng Lin,&nbsp;Ting Liang,&nbsp;Jie Chen,&nbsp;Tongtong Zhang,&nbsp;Yulong Ding","doi":"10.1007/s42114-025-01253-w","DOIUrl":"10.1007/s42114-025-01253-w","url":null,"abstract":"<div><p>The foundation industry, particularly the steel sector, is one of the major sources of global CO₂ emissions, with each ton of steel produced using iron ores contributing approximately 1.4 (direct reduced iron-based process) to 2 (blast furnace-based process) tons of CO₂, with ironmaking accounting for approximately 70% of these emission. Here, we present a study on the potential of using a double perovskite, Ba₂Ca_0.66Nb_0.34FeO_6-δ (BCNF), as a CO₂ splitting catalyst that converts CO₂ into carbon monoxide (CO), a reducing agent in ironmaking, which can be reintegrated into the ironmaking process to enable ‘in-process’ decarbonisation and facilitate close-loop carbon recirculation. The study combines thermodynamic modelling, molecular dynamics simulations, material characterisation, and lab-scale experimental system design, demonstrating the efficiency and practicality of the use of BCNF for CO₂ emission reduction at a moderate temperature range. Simultaneous Thermal Analysis and COMSOL-based simulations were employed to optimise reactor design, maximising CO yield. An economic analysis further supports the scalability of this technology for decarbonising the steelmaking industry, which bears significance with the broader applicability to other foundation industrial sectors, including non-ferrous metal smelting, cement, glass, ceramics, and chemicals. This innovation offers a promising pathway towards sustainable industrial practices and contributes to global efforts to address climate change challenges.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":7220,"journal":{"name":"Advanced Composites and Hybrid Materials","volume":"8 1","pages":""},"PeriodicalIF":23.2,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s42114-025-01253-w.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143362034","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":"The construction of a stable physical–chemical multi-crosslinking structure through a simplified FROMP strategy synergistically enhances the flame retardancy and mechanical properties of PDCPD","authors":"Ping Wang,&nbsp;Mengting Shi,&nbsp;Jiacheng Ling,&nbsp;Li Yang,&nbsp;Wenxiu Liu,&nbsp;Yiyang Zhou,&nbsp;Jie Xu,&nbsp;Mei Chen,&nbsp;Guilin Li","doi":"10.1007/s42114-025-01254-9","DOIUrl":"10.1007/s42114-025-01254-9","url":null,"abstract":"<div><p>The enhancement of the flame retardancy of polydicyclopentadiene (PDCPD) while maintaining its excellent mechanical properties has long been an important and critical technical challenge for many years. In this contribution, we designed and synthesized a new flame-retardant monomer containing double norbornene groups (NB-PDP) which can undergo the frontal ring-opening metathesis polymerization (FROMP) with dicyclopentadiene (DCPD) and 5-dicyclopentadiene-2-carboxylic acid (NB-COOH). Through the formulation optimization, the flame retardancy and mechanical properties of the copolymers could be easily regulated. To investigate the influencing mechanism of the NB-PDP and NB-COOH on the properties of the copolymers, the thermodynamics and kinetics of the FROMP, as well as the micro-structures, mechanical properties, and flame-retardant performance of the PDCPD/NB-PDP/NB-COOH copolymers were systematically studied. The findings suggest that the integration of NB-PDP and NB-COOH resulted in a diverse array of physical and chemical cross-linking networks within the system. Consequently, the tensile strength of the copolymers reached a maximum of 63.1 MPa and the elongation at break achieved up to 28.5%, representing the increases of 43.0% and 154.0% compared to that of PDCPD without any modification, respectively. It is worth mentioning that except the flame-retardant NB-PDP, NB-COOH could also serve as the carbon source to enhance the char formation and further improve the flame-retardant properties, such as the limiting oxygen index (LOI), peak heat release rate (PHRR), total heat release (THR), and total smoke production (TSP). These phenomena indicate that the material exhibits excellent mechanical properties and conspicuous flame retardancy. This work provided an efficient method for the preparation of the intrinsically flame-retardant PDCPD materials and a new strategy for the constructing of the thermosetting materials with excellent comprehensive performance.</p></div>","PeriodicalId":7220,"journal":{"name":"Advanced Composites and Hybrid Materials","volume":"8 1","pages":""},"PeriodicalIF":23.2,"publicationDate":"2025-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s42114-025-01254-9.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143184664","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":"Aramid nanofibers at ultralow loadings: driving significant multifunctionality in epoxy composite dielectrics","authors":"Haowen Yuan,&nbsp;Zi Wang,&nbsp;Di Lan,&nbsp;Siyuan Zhang,&nbsp;Zicheng Zang,&nbsp;Guoqing Jiang,&nbsp;Huachao Wei,&nbsp;Yiyi Zhang,&nbsp;Jiajia Zheng,&nbsp;Junwen Ren,&nbsp;Guanglei Wu,&nbsp;Shenli Jia","doi":"10.1007/s42114-025-01222-3","DOIUrl":"10.1007/s42114-025-01222-3","url":null,"abstract":"<div><p>Epoxy dielectrics with superior insulation, mechanical, and thermal performance are of great interest for electrical equipment and power electronics. However, integrating these excellent advantages into epoxy presents a formidable challenge. Herein, we detail a simple yet effective strategy for the concurrent enhancement of the dielectric breakdown strength, mechanical toughness, mechanical strength, and the glass transition temperature (<i>T</i>_g) of the epoxy dielectrics by incorporation of a minimal amount of aramid nanofibers (ANFs). It is revealed that a robust interfacial interaction is established between epoxy matrix and the high aspect ratio of ANFs as corroborated by both molecular dynamics simulations and dielectric relaxation spectroscopy. The strong interaction facilitates an optimized interface that enables efficient transfer of interfacial stress and energy dissipation, in turn conferring the ANFs/Epoxy with exceptional mechanical strength (up to 75.68 MPa) and toughness (195 MJ/m³) as well as high <i>T</i>_g (155 °C), respectively. Furthermore, the incorporation of ANFs introduces a multitude of deep traps which effectively impede the migration of charge carriers, contributing to a substantial improvement of the dielectric breakdown strength (196.8 kV/mm) of the ANFs/Epoxy composite, which is almost 4.1 times higher than that of epoxy.</p></div>","PeriodicalId":7220,"journal":{"name":"Advanced Composites and Hybrid Materials","volume":"8 1","pages":""},"PeriodicalIF":23.2,"publicationDate":"2025-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s42114-025-01222-3.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143108056","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":"Metabolic reprogramming of fibroblast-like synoviocytes with a supramolecular nano-drug for osteoarthritis therapy","authors":"Yibo Ma,&nbsp;Jiaxing Dong,&nbsp;Xiangqian Zou,&nbsp;Xiaohua Jiang,&nbsp;Linhua Liu,&nbsp;Bing Wang,&nbsp;Xiulin Mao,&nbsp;Liangfeng Gong,&nbsp;Guoshu Li,&nbsp;Changjian Chen","doi":"10.1007/s42114-025-01245-w","DOIUrl":"10.1007/s42114-025-01245-w","url":null,"abstract":"<div><p>Metabolic reprogramming is fundamental to synovium remodeling with drug delivery for osteoarthritis (OA) therapy. Mitochonic acid 5-MASM7@MnTBAP nanoparticles (MM@MT NPs) with various physicochemical properties and biological activities may be developed as a supramolecular nano-drug delivering to articulus for regulating mitochondrial metabolism of synovium. This study aims to explore the feasibility, efficacy, and mechanism of MM@MT NPs, which possibly excavates a novel perspective for OA therapy. Herein, for feasibility, MM@MT NPs has been indicated to possess excellent photothermal, reactive oxygen species (ROS) response, and oxygen release performances. For efficacy, MM@MT NPs has been confirmed to promote extracellular matrix (ECM) regeneration. For mechanism, MM@MT NPs has been illustrated to restore the mitochondrial membrane potential and recover the mitochondrial dynamics, which is beneficial for maintaining mitochondrial homeostasis. Moreover, MM@MT NPs has been demonstrated to stimulate the tricarboxylic acid (TCA) cycle and oxidative phosphorylation (OXPHOS) in mitochondria as well as enhance antioxidant capacity and eliminate oxidative stress, which is reflected in regulating the adenosine triphosphate (ATP) and ROS metabolism. Therefore, MM@MT NPs can remodel the homeostasis of mitochondria via reprogramming metabolism in synovium, which achieves the symptomatic and etiological treatments of OA.</p></div>","PeriodicalId":7220,"journal":{"name":"Advanced Composites and Hybrid Materials","volume":"8 1","pages":""},"PeriodicalIF":23.2,"publicationDate":"2025-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s42114-025-01245-w.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143108055","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":"Advanced selective adsorption of alizarin dye from wastewater using novel nanomagnetic molecularly imprinted polymers","authors":"Qingqing Rao,&nbsp;Yunlong Zhang,&nbsp;Ruru Wang,&nbsp;Runjin Zhu,&nbsp;Ahmed M. Fallatah,&nbsp;Gaber A. M. Mersal,&nbsp;Yuanlian Li,&nbsp;Fei Tong,&nbsp;Mohamed M. Ibrahim,&nbsp;Yi Kuang,&nbsp;Bingnan Yuan,&nbsp;Shengxiang Yang","doi":"10.1007/s42114-024-01095-y","DOIUrl":"10.1007/s42114-024-01095-y","url":null,"abstract":"<div><p>Dye wastewater exhibits a pronounced negative effect on the aquatic environment. However, the selective and efficient adsorption of dye from wastewater presents substantial challenges. Here, a novel surface molecularly imprinted polymer (Alizarin/SMIPs) was developed via an etched nanomagnetic carrier and computer-aided material design. The findings demonstrate that Alizarin/SMIPs exhibit high adsorption efficiency (60.94 mg·g⁻¹), excellent regeneration (≥ 11 cycles), and excellent magnetic responsive collection (6 s). In addition, the adsorption efficiencies of Alizarin/SMIPs for analogues were significantly lower at 20.26%. Inversely, the recovery rate of Alizarin/SMIPs for Alizarin in wastewater samples can reach 100%. Compared to previous studies, Alizarin/SMIPs demonstrate a high adsorption capacity, selectivity, recovery, and renewability for dye molecules. Besides, the results of the density functional theory (DFT) elucidated the potential interaction forces and binding sites between dye molecules and adsorbents, offering a promising adsorbent for efficient and targeted removal of dye molecules from dyestuff wastewater.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":7220,"journal":{"name":"Advanced Composites and Hybrid Materials","volume":"8 1","pages":""},"PeriodicalIF":23.2,"publicationDate":"2025-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s42114-024-01095-y.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143107893","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":"Electronic structure optimizing of Ru nanoparticles loaded on carbon via amorphous Pr2O3 for accelerating hydrogen production from ammonia decomposition","authors":"Rui Chen,&nbsp;Hongfei Pan,&nbsp;Zihan Meng,&nbsp;Haibo Tang,&nbsp;Qi Li,&nbsp;Tian Tian,&nbsp;Xiege Huang,&nbsp;Zhigang Zhan,&nbsp;Haolin Tang","doi":"10.1007/s42114-025-01252-x","DOIUrl":"10.1007/s42114-025-01252-x","url":null,"abstract":"<div><p>Green hydrogen is an effective energy countermeasure for global climate change and promoting the energy transition and CO_x-free hydrogen production from ammonia decomposition provides an economic benefit of hydrogen storage and transportation which garnering widespread attention. In this study, the catalyst consisting of highly dispersed Ru nanoparticles with amorphous Pr₂O₃ loaded on carbon supports was synthesized by the annealing of hybrid precursor in the presence of Pr and Ru ions. Benefitted from the optimized electronic structure of Ru nanoparticles stimulated by amorphous Pr₂O₃ and carbon supports, the catalyst exhibits enhanced capability of electronic transmission which promoting the recombination and desorption of nitrogen atoms, ultimately improving the catalytic activity during the thermal ammonia decomposition. The prepared catalyst achieved a remarkable ammonia conversion rate of 99% with a hydrogen production rate of 27.7 mmol·g_cat⁻¹·min⁻¹(25,000 mL·g_cat⁻¹·h⁻¹, 500℃), an exceptional stability of catalytic activity with a degradation of less than 3% after 200 h at a space velocity of 30,000 mL·g_cat⁻¹·h⁻¹ under 500℃, further facilitating the development of more efficient hydrogen production from thermal catalytic ammonia decomposition.</p></div>","PeriodicalId":7220,"journal":{"name":"Advanced Composites and Hybrid Materials","volume":"8 1","pages":""},"PeriodicalIF":23.2,"publicationDate":"2025-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s42114-025-01252-x.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143108054","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":"Glutathione-responsive FA-CMC-GNA nanoparticles: a novel approach for enhanced delivery of gambogenic acid in lung cancer treatment","authors":"Xiaoling Xu,&nbsp;Lisha Ye,&nbsp;Chaohui Bao,&nbsp;Wen Hong,&nbsp;Kaiding Wang,&nbsp;Shicheng Qiu,&nbsp;Yaping Xu,&nbsp;Jigang Piao,&nbsp;Qinghua Yao","doi":"10.1007/s42114-024-01205-w","DOIUrl":"10.1007/s42114-024-01205-w","url":null,"abstract":"<div><p>One of the limitations of current anticancer nanomedicines in clinical applications is the efficiency of drug delivery in their nanocarrier systems. Therefore, we aimed to develop a nano-delivery system loaded with a hydrophobic drug for lung cancer treatment. Nanoparticles (FA-CMC-GNA NPs) were prepared using an emulsion solvent evaporation method, with a disulfide bond-crosslinked thiolated carboxymethyl cellulose as the backbone, encapsulating the hydrophobic drug gambogenic acid. The preparation process was optimized through single-factor experiments and response surface methodology to determine the optimal preparation conditions. The characterization of the physicochemical properties of FA-CMC-GNA NPs was conducted using various techniques, including scanning electron microscopy, dynamic light scattering, X-ray spectroscopy, thermogravimetric analysis, differential scanning calorimetry, and Fourier-transform infrared spectroscopy. The results showed that the nanoparticles exhibited uniform dispersion and spherical morphology with a particle size of approximately 193.3 nm. Additionally, FA-CMC-GNA NPs demonstrated significant glutathione (GSH)-responsive release behavior <i>in vitro</i>. The prepared FA-CMC-GNA NPs were internalized into A549 cells via folate receptor-mediated endocytosis and released gambogenic acid in response to GSH, resulting in a significant inhibitory effect on A549 cells. In conclusion, these findings suggest that FA-CMC-GNA NPs hold the potential to enhance the clinical application value of the hydrophobic drug gambogenic acid for lung cancer therapy.</p></div>","PeriodicalId":7220,"journal":{"name":"Advanced Composites and Hybrid Materials","volume":"8 1","pages":""},"PeriodicalIF":23.2,"publicationDate":"2025-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s42114-024-01205-w.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143107821","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":"Immunotherapy strategy for treating inflammatory bowel disease based on a nanozyme/total glucosides of paeony hybrid materials","authors":"Zetian Wang,&nbsp;Ningning Hu,&nbsp;Longqiu Yang,&nbsp;Qing Wang,&nbsp;Chunzheng Liu,&nbsp;Wenying Duan,&nbsp;Jiaqi Lin,&nbsp;Jinyuan Zhang,&nbsp;Xiuqin Yu,&nbsp;Changchun Huang,&nbsp;Yuling Li,&nbsp;Lijun Liao","doi":"10.1007/s42114-025-01249-6","DOIUrl":"10.1007/s42114-025-01249-6","url":null,"abstract":"<div><p>Inflammatory bowel disease (IBD) is a chronic gastrointestinal inflammatory condition that has long plagued patients. Herein, an innovative oral treatment strategy for IBD is proposed, which utilizes calcium alginate hydrogel as a carrier to deliver Co₃O₄ nanocages loaded with total glucosides of paeony (TGP) into the body. This design ingeniously exploits the protective properties of the alginate outer layer to ensure that the enzyme is not prematurely degraded when passing through acidic gastric juice. However, upon reaching the inflamed intestinal site, the overexpressed H₂O₂ there mixes with a specific solution, causing the hydrogel to degrade and release Co₃O₄@TGP. These negatively charged nanozymes can precisely recognize and accumulate in the inflamed colonic tissue, achieving targeted therapy through their unique charge characteristics. More importantly, Co₃O₄ itself possesses excellent catalytic activity, effectively consuming excess H₂O₂ at the site of inflammation and degrading into 10 nm small particles in the process, while simultaneously releasing TGP. Together, they exert dual effects of scavenging reactive oxygen species (ROS) and anti-inflammation. Its therapeutic mechanism involves fine regulation of the expression of key proteins such as TLR7, MYD88, and GAPDH, as well as effective inhibition of the NF-κB signaling pathway. This series of actions not only reduces the release of various pro-inflammatory cytokines (such as TNF-α, IL-18, IL-1β, IL-6, and HMGB1) but also promotes the production of the anti-inflammatory cytokine IL-10, thereby effectively maintaining the integrity of the intestinal barrier. This research achievement opens up a novel path for the treatment of colitis.</p></div>","PeriodicalId":7220,"journal":{"name":"Advanced Composites and Hybrid Materials","volume":"8 1","pages":""},"PeriodicalIF":23.2,"publicationDate":"2025-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s42114-025-01249-6.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143107872","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":"Multiple synergistic effects of structural coupling and dielectric-magnetic loss in promoting microwave absorption of bark-derived absorbers","authors":"Dongyi Lei,&nbsp;Chengkan Liu,&nbsp;Sijia Wang,&nbsp;Peng Zhang,&nbsp;Ying Li,&nbsp;Donglei Yang,&nbsp;Yihan Jin,&nbsp;Zhenxin Liu,&nbsp;Chunlei Dong","doi":"10.1007/s42114-025-01233-0","DOIUrl":"10.1007/s42114-025-01233-0","url":null,"abstract":"<div><p>The explode development of global automation and digitization brings increasing electromagnetic radiation, threatening information security and health. Biomass wave-absorbing materials stand out among massive absorbers due to their green and environmentally friendly features, yet remains severe challenge in equilibration between impedance matching and efficient loss ability. Herein, this work innovatively used waste bark which amounts up to 400 million cubic meters generated from forest as carbon precursor. The FeCo@C nanocomposites derived from FeCo-MOF precursor are introduced on the surface of bark-derived carbon pore using vacuum impregnation and carbonization methods, and tree bark-derived porous carbon (TPC)/FeCo@C composites are successfully fabricated. The unique hierarchical structure composed of three-dimensional (3D) parallel pore structure of bark-derived carbon and yolk-shell structure of FeCo@C favors to optimizing impedance matching and prolonging attenuation paths of microwaves. Additionally, the introduction of FeCo@C can promote interface polarization loss, as well as enhance synergistic effects of dielectric-magnetic losses. Multiple synergistic effects of structural coupling and dielectric-magnetic loss endow TPC/FeCo@C composite attractive absorbing ability. The optimized TPC/FeCo@C-5 exhibits a minimum reflection loss (RL_min) of − 61.04 dB and the effective bandwidth (EAB) of 7.25 GHz at a matching thickness of 2.64 mm, which is superior to most biomass-based absorbers. Apparently, this work presents a valuable concept for the secondary utilization of discarded bark in the domain of microwave absorption, which is significant for achieving energy saving and environmental protection and addressing electromagnetic pollution.</p></div>","PeriodicalId":7220,"journal":{"name":"Advanced Composites and Hybrid Materials","volume":"8 1","pages":""},"PeriodicalIF":23.2,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s42114-025-01233-0.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143108264","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}