Advanced Composites and Hybrid Materials最新文献

{"title":"Enhanced microwave absorption in C@Co/carbonyl iron fiber composite with multi-level interfaces","authors":"Kai Sun,&nbsp;Zelin Xie,&nbsp;Xuechun Yang,&nbsp;Yunchen Long,&nbsp;Pengtao Yang,&nbsp;Chuanbing Cheng,&nbsp;Xiaosi Qi","doi":"10.1007/s42114-024-01124-w","DOIUrl":"10.1007/s42114-024-01124-w","url":null,"abstract":"<p>With the accelerated advancement of electronic information and military technology, there is a pressing need to develop high-performance absorbing materials. In this paper, we proposed to enhance the microwave absorption performance according to the coupling effect of electric–magnetic loss in magnetic composites with multi-level interfaces. Specifically, the magnetic cobalt nanoparticles were embedded within the porous carbon matrix derived from a metal–organic framework and composited with carbonyl iron fiber to prepare C@Co/CIF composites with multi-level interfaces. When the C@Co/CIF loading ratio was 30 wt%, the minimum reflection loss (RL_min) of the absorber was − 45.65 dB, and the effective absorption bandwidth was about 4.8 GHz with a matching thickness of 1.35 mm, which presented a good microwave absorption performance. Electromagnetic waves can penetrate through multiple scattering and internal reflections and eventually disappear through multi-level interfaces of C@Co/CIF composites. Meanwhile, the dielectric porous carbon, the magnetic cobalt, and CIF made a synergistic effect on the electric–magnetic loss, which was responsible for the attenuation of the electromagnetic wave. The findings of this study offer insight that can inform the design and fabrication of metal–organic framework derivatives for electromagnetic wave absorption materials.</p>","PeriodicalId":7220,"journal":{"name":"Advanced Composites and Hybrid Materials","volume":"8 1","pages":""},"PeriodicalIF":23.2,"publicationDate":"2024-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142790404","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":"Recent progress in the development of cellulose-derived organic-nanopolymer and coordination network platforms for application as optical chemosensors","authors":"Ratish R. Nair,&nbsp;Joo Hee Hyun,&nbsp;Jahyun Kim,&nbsp;Kyung Oh Jung,&nbsp;Dokyoung Kim","doi":"10.1007/s42114-024-01078-z","DOIUrl":"10.1007/s42114-024-01078-z","url":null,"abstract":"<div><p>Cellulosic materials are attractive hybrid combinations that avail an array of hitherto unachievable properties by conjugating with organic, inorganic,and nano- and polymeric compounds. Cellulose-based materials have established great potential in several fields, such as air purification, water remediation, adsorbents, gas storage, biomedicine and optical chemosensing. Cellulose is among the cheapest materials available and is easily modifiable into different materials. The review summarises the chemical modification of cellulose materials and their applications in optical chemosensing. The review briefs the utilization of cellulose in fabrication, doping, and modification with organic, nano and polymeric chromo and fluorophores. Cellulose-fabricated materials like films, fibres, crystals, hydrogel and coordination networks are accurately highlighted. Discussion on the applicability of cellulosic hybrids for the detection of toxic metal ions, anions, aromatic vapours, explosives, pH, bioimaging, 3D-printing, coating and anti-counterfeiting by utilizing optical sensing approaches such as UV and fluorescence spectroscopy is pursued. Finally, the elaboration of upcoming investigations, challenges and opinions observed in utilising cellulose hybrid materials for optical chemosensing applications are discussed. We believe that this review will drive more and more curiosity and attention from the scientific community, industries and laboratories working with the synthesis of cellulose-based hybrid materials for widespread optical chemosensing applications.</p></div>","PeriodicalId":7220,"journal":{"name":"Advanced Composites and Hybrid Materials","volume":"8 1","pages":""},"PeriodicalIF":23.2,"publicationDate":"2024-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s42114-024-01078-z.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142798542","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":"Dual natural enzyme-tuned biomineralized nanoflowers for boosting cascade catalytic antibacterial therapy and relieving inflammation","authors":"Hanyu Zhang,&nbsp;Mingdi Zheng,&nbsp;Meng Hao,&nbsp;Xiao Dong,&nbsp;Gemeng Liang,&nbsp;Jinshuo Zou,&nbsp;Yongxin Li,&nbsp;Peitao Xie","doi":"10.1007/s42114-024-01086-z","DOIUrl":"10.1007/s42114-024-01086-z","url":null,"abstract":"<div><p>The development of the non-antibiotic agents that are clinically safe remains a huge challenge in combating bacterial infections. Herein, we report the construction of dual natural enzymes bromelain (Bro) and glucose oxidase (Gox)-based peroxidase-like nanoflowers through copper phosphate biomineralization for synergistic antibacterial/anti-inflammatory therapy. The hybrid nanoflowers firstly exert the Gox activity for catalyzing the oxidation of glucose to produce H₂O₂, which is subsequently converted into highly reactive ·OH through their peroxidase-like activity. This cascade enzymatic activity endows nanoflowers with excellent antibacterial efficiencies, inhibiting the growth of <i>Escherichia coli</i> (<i>E. coli</i>) and <i>Staphylococcus aureus</i> (<i>S. aureus</i>) by 99% without the addition of exogenous H₂O₂, thus greatly reducing toxic side effects. Meanwhile, the nanoflowers downregulate the secretion of pro-inflammatory cytokines and inhibit the inflammatory response through the release of Bro, significantly accelerating the healing of bacteria-infected wounds. Besides, the nanoflowers utilize the biomolecules and endogenous metal species as building blocks, together with a green and simple synthesis method, guaranteeing their biosafety in practical applications. Overall, the unparalleled biocompatibility and robust antibacterial/anti-inflammatory ability make the nanoflowers a highly promising candidate for the treatment of bacterial infections in future clinical applications.</p></div>","PeriodicalId":7220,"journal":{"name":"Advanced Composites and Hybrid Materials","volume":"8 1","pages":""},"PeriodicalIF":23.2,"publicationDate":"2024-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142789383","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":"Flexible multifunctional MXene/polyimide films with Janus structure for superior electromagnetic interference shielding","authors":"Lei Wang,&nbsp;Zelong Yang,&nbsp;Li Lang,&nbsp;Jingyi Men,&nbsp;Tiantian Gao,&nbsp;Qin Wang,&nbsp;Jiawei Cheng,&nbsp;Yuezhou Liu,&nbsp;Nan Zheng,&nbsp;Jie Liu,&nbsp;Xiaohui Ji","doi":"10.1007/s42114-024-01100-4","DOIUrl":"10.1007/s42114-024-01100-4","url":null,"abstract":"<div><p>Flexible polymer-based films for electromagnetic interference (EMI) shielding are of great importance in wearable devices, sensors, and electronic communications. In this work, after synthesizing water-soluble polyamide acid (PAA), MXene/PAA films with Janus structure are prepared by layered solution casting method, and followed with thermally annealing to obtain MXene/polyimide (PI) films with Janus structure. The unique Janus structure provides MXene/PI films with the unique “conductive on one side and insulating on the other” property. When the MXene content is 50 wt%, the MXene/PI film shows EMI shielding effectiveness (SE) of 57 dB. Moreover, the MXene/PI film also presents outstanding electrothermal and photothermal conversion performances. The MXene/PI film quickly reaches stabilized temperature of 108 °C when the applied voltage is 2 V. Under simulated solar irradiation with the power density of 120 mW/cm², the surface stabilization temperature is to 87 °C. In addition, the MXene/PI films also show excellent structural stability and flame retardancy.</p></div>","PeriodicalId":7220,"journal":{"name":"Advanced Composites and Hybrid Materials","volume":"8 1","pages":""},"PeriodicalIF":23.2,"publicationDate":"2024-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142778537","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":"Asymmetric hybrid carbonaceous membranes with exceptional electromagnetic interference shielding and superior electro-photo-thermal performance","authors":"Feifei Zhang,&nbsp;Yameng Wang,&nbsp;Xiao Li,&nbsp;Miaomiao Zhang,&nbsp;Hao-Yang Mi,&nbsp;Chuntai Liu,&nbsp;Changyu Shen","doi":"10.1007/s42114-024-01097-w","DOIUrl":"10.1007/s42114-024-01097-w","url":null,"abstract":"<div><p>Multifunctional carbon fiber (CF)–based composite membranes engineered for superior electromagnetic interference (EMI) shielding and advanced thermal management are fabricated by decorating wrinkled reduced graphene oxide (rGO) onto CF networks to form carbon nanofiber/rGO (CFG) composite membranes, followed by the assembly of a highly conductive silver nanowire (AgNW) layer. With a desired carbonization temperature and an asymmetric configuration design, the asymmetric hybrid carbonaceous membranes demonstrated a high electrical conductivity of 3900 S m⁻¹ and achieved an enhanced EMI shielding effectiveness of up to 84.5 dB within the X-band frequency range, which is attributed to the special “absorption-reflection-reabsorption” EM wave shielding mechanism enabled by the AgNW reflection layer and the hybrid conductive network. Additionally, the membranes exhibit robust photothermal responses characterized by excellent cycling stability and tunability under light irradiation, owing to their light scattering and synergistic effects. Remarkably, the multifunctional membranes attain a rapid temperature increase, reaching 165 °C under a modest 5 V input. This work provides valuable insights and opens up new avenues for the development of high-performance, multifunctional CF-based membranes, holding great promise for applications in efficient EMI shielding and temperature management.</p><h3>Graphical Abstract</h3><p>The carbon fiber (CF)/reduced graphene oxide (rGO)/silver nanowire (AgNW) asymmetric hybrid carbonaceous CFG-Ag membranes were fabricated, and the as-obtained samples possessed excellent electromagnetic interference shielding and superior electro-photo-thermal performance.</p>\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":"2024-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142778538","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":"Machine learning-assisted design of high-performance perovskite photodetectors: a review","authors":"Xiaohui Li,&nbsp;Yongxiang Mai,&nbsp;Chunfeng Lan,&nbsp;Fu Yang,&nbsp;Putao Zhang,&nbsp;Shengjun Li","doi":"10.1007/s42114-024-01113-z","DOIUrl":"10.1007/s42114-024-01113-z","url":null,"abstract":"<div><p>Photodetectors (PDs) based on perovskite materials have become a strong contender for next-generation optical sensing. Because it has the advantages of high photoelectric conversion efficiency, broad spectral response, low cost, and easy preparation, it has a promising application in the field of optoelectronics. Machine learning (ML) is a branch of artificial intelligence that enables computer systems to improve performance from data through algorithms and statistical models automatically. Recently, it has been used in performance prediction and material screening of optoelectronic devices. As a result, combining ML and perovskite PDs has received much attention to optimize manufacturing processes and reduce processing costs. In this review, we provide a comprehensive review of recent research advances in the use of ML for perovskite devices, analyze the application of different types of perovskite materials in PDs, and discuss the feasibility and challenges of applying ML in perovskite PDs. This review outlines a visionary perspective and a roadmap for the progression of perovskite PDs towards unparalleled performance benchmarks, offering insights into the future trajectory of this promising technology.</p></div>","PeriodicalId":7220,"journal":{"name":"Advanced Composites and Hybrid Materials","volume":"8 1","pages":""},"PeriodicalIF":23.2,"publicationDate":"2024-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142778539","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":"A multi-functional composite nanocatalyst for the synthesis of biologically active pyrazolopyranopyrimidines: Multifaceted antimicrobial, antioxidant, and anticancer activities","authors":"Yi Xu,&nbsp;Shefa Mirani Nezhad,&nbsp;Ehsan Nazarzadeh Zare,&nbsp;Seied Ali Pourmousavi,&nbsp;Alireza Doostian,&nbsp;Junna Ren,&nbsp;Ana Cláudia Paiva-Santos,&nbsp;Aimin Wu,&nbsp;Gautam Sethi,&nbsp;Filippo Rossi,&nbsp;Xiangdong Wang,&nbsp;Pooyan Makvandi","doi":"10.1007/s42114-024-01021-2","DOIUrl":"10.1007/s42114-024-01021-2","url":null,"abstract":"<div><p>Metal-organic frameworks (MOFs) are crystalline entities made up of metal ions or clusters coordinated to typically rigid organic molecules, creating three-dimensional porous networks. The integration of both inorganic and organic components results in almost unlimited chemical and structural possibilities. This potential has led to MOF for catalytic applications attracting great interest. In this context, a novel multifunctional magnetic nanocomposite, was synthesized for the efficient and sustainable production of biologically active pyrazolopyranopyrimidines. This composite (Fe₃O₄@P<i>m</i>PDA@UiO-66-NH₂) combines the advantages of magnetic nanoparticles (Fe₃O₄), a polymer coating poly(<i>meta</i>-phenylenediamine), and a metal-organic framework (UiO-66-NH₂). The nanocomposite as a multifunctional magnetic catalyst has been synthesized in three steps including (1) synthesis of Fe₃O₄ nanoparticles by <i>co</i>-precipitation technique (2) preparation of UiO-66-NH₂ through a solvothermal method, (3) preparation of nanoparticles-polymer-MOF hybrid nanocomposite using Fe₃O₄, P<i>m</i>PDA, and UiO-66-NH₂. The prepared catalyst was fully characterized by XRD, FTIR, EDX, FESEM, TGA, and VSM analyses. The Fe₃O₄@P<i>m</i>PDA@UiO-66-NH₂ nanocomposite was used as a catalyst for the synthesis of pyrazolopyranopyrimidines. Various pyrazolopyranopyrimidine products were synthesized in remarkable yields (90–96%) in a short reaction time (10–80 min). The biological activity of pyrazolopyranopyrimidines was studied. The anticancer evaluation of some pyrazolopyranopyrimidines was studied on the survival rate of HepG2 cancer cells and NIH/3T3 fibroblast cells by using an MTT assay. A greater inhibition of cell viability was obtained after 48 h of incubation with higher concentrations (150 µg/L) of pyrazolopyranopyrimidines compounds, demonstrating the anti-proliferative effects of these agents. Additionally, in most cases, the viability of fibroblast cells exhibited a comparatively minor decline when incubated with pyrazolopyranopyrimidines as opposed to HepG2 cells. Furthermore, these compounds have an antioxidant activity between 85.3 and 98.3%. Additionally, their antimicrobial activity was evaluated using the Kirby-Bauer disk diffusion method and showed the highest inhibition zone against <i>Staphylococcus aureus</i> and <i>Escherichia coli</i> of 19 ± 2.0 and 10 ± 1.5 mm, respectively.</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":"2024-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142778196","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":"Comparison of strength degradation for SnAgCu solders with various Ag contents during thermal cycling","authors":"Xiaojing Wang,&nbsp;Quanzhen Li,&nbsp;Youchen Zhang,&nbsp;Shanshan Cai,&nbsp;Mahmoud M. Hessien,&nbsp;Ahmed M. Fallatah,&nbsp;Ning Liu,&nbsp;Xiaohong Yuan,&nbsp;Salah M. El-Bahy","doi":"10.1007/s42114-024-01101-3","DOIUrl":"10.1007/s42114-024-01101-3","url":null,"abstract":"<div><p>The mechanical damage of Sn-0.3Ag-0.7Cu, Sn-<i>x</i>Ag (<i>x</i> = 1.0, 2.0, and 3.0)-0.5Cu solder joints were investigated under the harsh isothermal aging and thermal–mechanical cycling, respectively. The results reveal that the shear properties of the single ball SAC/Cu after reflow soldering have a strong positive correlation with the Ag content. While after 250–1000 h aging at 170 °C, their shear strength all decreases and the effect of Ag contents on the shear strength variation eliminates, indicating that aging-induced Ag₃Sn coarsening leads to a weaker difference in strength. Similar results are observed in the solder joints of 0603 resistor packages subjected to − 40–125 ℃ thermal–mechanical cycling during 0–1000 cycles. While after 1000–2000 cycles, the shear strength of <i>x</i>Ag joints exhibit an opposite trend with Ag contents. Meantime, the cracks appear, and their length is proportional to Ag content. Thus, their shear strength variation mainly relies on their crack length. Namely, the strength degradation of <i>x</i>Ag joints of 0603 resistor packages during thermal cycling can be divided into the Ag₃Sn coarsening-dominated stage and the late crack length-dominated stage. This study provides a theoretical basis for understanding the damage degradation mechanism of varying Ag content alloys and the possibility of reducing the Ag content.</p></div>","PeriodicalId":7220,"journal":{"name":"Advanced Composites and Hybrid Materials","volume":"8 1","pages":""},"PeriodicalIF":23.2,"publicationDate":"2024-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142778194","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":"Lightweight, high-strength, heat-resistant TiB2–B4C-modified phenolic aerogel/carbon fiber composites with excellent thermal stability, oxidation, and ablation resistance for thermal protection","authors":"Yang Liu,&nbsp;Zongyi Deng,&nbsp;Wei Zhang,&nbsp;Guoqin Jiang,&nbsp;Wenjing Cao,&nbsp;Zhixiong Huang,&nbsp;Minxian Shi,&nbsp;Jian Li","doi":"10.1007/s42114-024-01106-y","DOIUrl":"10.1007/s42114-024-01106-y","url":null,"abstract":"<div><p>Lightweight ablative materials are commonly utilized as thermal protection materials for hypersonic vehicles. Ceramizable phenolic aerogel/carbon fiber (PA/CF) composites modified with TiB₂ and B₄C were fabricated, which had the characteristics of lightweight, high strength, and low thermal conductivity. The acid-catalyzed phenol-aldehyde polymerization reaction was used to significantly shorten the gelation time, which facilitated the uniform distribution of ceramic fillers. The oxygen-consuming, oxygen-blocking, and carbon-fixing synergistic effects of TiB₂ and B₄C high-temperature ceramic reactions, as well as the multiphase ceramic structure (C-B₂O₃-TiO₂-TiC) formed, conferred excellent thermal stability (the residual weight of 58.8% at 1200 °C), oxidation resistance (the residual strength of 3.44 MPa after static ablation), and ablation resistance (the linear and mass ablation rates as low as 0.045 mm/s and 0.0115 g/s) on the composites. The lightweight, high-strength materials with anti-thermal insulation properties demonstrate significant competitiveness and application potential in the field of thermal protection.</p></div>","PeriodicalId":7220,"journal":{"name":"Advanced Composites and Hybrid Materials","volume":"8 1","pages":""},"PeriodicalIF":23.2,"publicationDate":"2024-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142778132","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":"Ultra-lightweight carbon nanocomposites as microwave absorber with high absorbing performance derived from flour","authors":"Yiming Zhong,&nbsp;Yunchen Long,&nbsp;Yinuo Sun,&nbsp;Jiachen Qin,&nbsp;Yongxin Li,&nbsp;Gemeng Liang,&nbsp;Jinshuo Zou,&nbsp;Peitao Xie","doi":"10.1007/s42114-024-01080-5","DOIUrl":"10.1007/s42114-024-01080-5","url":null,"abstract":"<div><p>Carbon materials, known for their lightweight properties, are widely utilized in electromagnetic wave absorption applications. In order to overcome the limitations of effective absorption of electromagnetic waves by a single carbon material, magnetic cobalt nanoparticles were incorporated into a carbon network derived from flour, resulting in the development of Co/C nanocomposites with a porous structure through fermentation. The results show that the electromagnetic wave absorbing material prepared in this way has advantages such as thin thickness (1.80 mm), lightweight, wide effective bandwidth (8.07 GHz), and high absorption capacity (− 61.6 dB). The absorption capability of the material originates from the multi-level interfaces in Co/C nanocomposites, the porous carbon structure formed during flour fermentation, and the dielectric relaxation generated during the polarization process. The excellent absorption performance is mainly attributed to the optimization of impedance matching and attenuation factor. The presence of amorphous carbon in the carbon network reduces the condensation and oxidation of magnetic cobalt nanoparticles, thus enhancing the impedance matching. By adjusting the Co/C ratio inside the nanocomposites, the impedance matching of the Co/C nanocomposites is improved, and the absorption capacity of the Co/C nanocomposites is improved. This study reports a simple method of preparing the porous microwave absorbing nanocomposites by carbonizing flour-based precursors and finally optimizing their absorption capacity by adding metal nanoparticles.</p></div>","PeriodicalId":7220,"journal":{"name":"Advanced Composites and Hybrid Materials","volume":"8 1","pages":""},"PeriodicalIF":23.2,"publicationDate":"2024-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142762026","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}