Composites Part B: Engineering最新文献

Spider web-inspired sericin/polyacrylamide composite hydrogel with super-low hysteresis for monitoring penalty of sports competition 受蜘蛛网启发的丝胶/聚丙烯酰胺复合水凝胶具有超低滞后，可用于监测体育比赛的处罚情况

IF 12.7 1区材料科学

Composites Part B: Engineering Pub Date : 2024-11-14 DOI: 10.1016/j.compositesb.2024.111983

Jingyu Chen , Yunyi Guo , Xueyan Zang , Yangyi Sun , Kunlin Chen

{"title":"Spider web-inspired sericin/polyacrylamide composite hydrogel with super-low hysteresis for monitoring penalty of sports competition","authors":"Jingyu Chen , Yunyi Guo , Xueyan Zang , Yangyi Sun , Kunlin Chen","doi":"10.1016/j.compositesb.2024.111983","DOIUrl":"10.1016/j.compositesb.2024.111983","url":null,"abstract":"<div><div>Conventional hydrogels often suffer from limitations such as poor hysteresis and low elasticity, significantly restricting their applications and service life. To address these issues, a spider web-inspired super-low hysteresis interpenetrating network hydrogel is designed using a straightforward in-situ thermal polymerization process. Stretching repeatedly within the range of human motion strain, this hydrogel can be rapidly restored to its original form using the formation of multiple hydrogen bonds and the introduction of the molecular spring structure of the β-sheet and α-helix in sericin, which means the service life of the hydrogel is increased imperceptibly. In addition, the sensitive sensing properties of the hydrogel allow for rapid feedback on the movement of human joints, making it possible to apply to considerably sophisticated human motion monitoring requiring rapid response. This kind of hydrogel with super-low hysteresis (1.65 %, <em>ε</em> = 100 %), transparency (88.84 % in 500 nm), rapid response (≈173 ms) and excellent sensitivity (GF = 2.88 in the strain range of 0–180 %) has great application prospects in intelligent judgment in sports competition and human body monitoring.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"290 ","pages":"Article 111983"},"PeriodicalIF":12.7,"publicationDate":"2024-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142659130","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}

引用次数: 0

Engineered dECM-based microsystem promotes cartilage regeneration in osteoarthritis by synergistically enhancing chondrogenesis of BMSCs and anti-inflammatory effect 基于 dECM 的工程微系统通过协同增强 BMSCs 的软骨生成和抗炎作用，促进骨关节炎患者的软骨再生

IF 12.7 1区材料科学

Composites Part B: Engineering Pub Date : 2024-11-13 DOI: 10.1016/j.compositesb.2024.111974

Ying Chen , Lin-Fei Chen , Ying Wang , You-Yu Duan , Sheng-Chang Luo , Yi-Cheng Wang , Ranjith Kumar Kankala , Shi-Bin Wang , Ai-Zheng Chen

{"title":"Engineered dECM-based microsystem promotes cartilage regeneration in osteoarthritis by synergistically enhancing chondrogenesis of BMSCs and anti-inflammatory effect","authors":"Ying Chen , Lin-Fei Chen , Ying Wang , You-Yu Duan , Sheng-Chang Luo , Yi-Cheng Wang , Ranjith Kumar Kankala , Shi-Bin Wang , Ai-Zheng Chen","doi":"10.1016/j.compositesb.2024.111974","DOIUrl":"10.1016/j.compositesb.2024.111974","url":null,"abstract":"<div><div>The cartilage defects in osteoarthritis (OA) often result in loss of supporting and cushioning functionalities. Along this line, tissue engineering strategies for microfluidics based on high-precision control capabilities have been developed as promising long-term therapeutic solutions for cartilage regeneration in OA towards implementing anti-inflammatory effects and subsequent chondroprotective regeneration. In this study, an engineered microcarrier comprising composite porous microspheres based on decellularized extracellular matrix (dECM) and poly(lactic-<em>co</em>-glycolic acid) (PLGA) encapsulating icariin (ICA) was fabricated by microfluidic technology. This microcarrier, co-cultured with bone marrow mesenchymal stem cells (BMSCs), was developed as an injectable engineered microsystem for cartilage regeneration in OA. Mechanistically, dECM effectively repaired cartilage defects by inducing the differentiation of encapsulated stem cells to a cartilage phenotype through microenvironmental effects. In addition to enhanced secretion of active anti-inflammatory substances from BMSCs by dECM, the gradual release of ICA from the degraded PLGA PMs synergized anti-inflammatory effects <em>in vivo</em>, resulting in effective cartilage regeneration in OA. In short, the engineered microsystem indicated favorable effects in protecting and repairing cartilage, highlighting their potential as a promising therapeutic intervention for effectively ameliorating OA.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"290 ","pages":"Article 111974"},"PeriodicalIF":12.7,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142659203","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}

引用次数: 0

Autologous myokine-loaded pre-vascularized bioactive scaffold enhances bone augmentation 自体肌酸负载预血管化生物活性支架可增强骨质增强效果

IF 12.7 1区材料科学

Composites Part B: Engineering Pub Date : 2024-11-12 DOI: 10.1016/j.compositesb.2024.111967

Chunhui Wang , Yonghao Qiu , Yulian Yang , Qiyuan Dai , Xiaodong Cao , Longquan Shao , Fujian Zhao

{"title":"Autologous myokine-loaded pre-vascularized bioactive scaffold enhances bone augmentation","authors":"Chunhui Wang , Yonghao Qiu , Yulian Yang , Qiyuan Dai , Xiaodong Cao , Longquan Shao , Fujian Zhao","doi":"10.1016/j.compositesb.2024.111967","DOIUrl":"10.1016/j.compositesb.2024.111967","url":null,"abstract":"<div><div>The poor angiogenic ability is the main reason for the failure of bone augmentation material implantation. Pre-vascularized culture is considered to be an effective method to accelerate early angiogenesis, while the immune rejection has limited clinical application. Herein, since bone augmentation is an elective procedure, an easily accessible pre-vascularized silk fibroin/bioactive glass (SF-BG) scaffold without immune rejection was prepared by autologous intramuscular implantation. The SF-BG scaffolds exhibited outstanding vascularization ability in muscle by enhancing the muscle endocrine function. Further mechanism study confirmed that BG improved the synthesis and secretion of myokine irisin by regulating PI3K/Akt/PGC-1α/FNDC5 signaling pathway. After implantation in the bone augmentation position, the pre-vascularized BG scaffold with irisin loaded fostered the early angiogenesis of implantation and increased bone augmentation at the late stage. This study proposed a new idea for bone augmentation by autologous intramuscular pre-vascularized scaffolds.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"290 ","pages":"Article 111967"},"PeriodicalIF":12.7,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142659426","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}

引用次数: 0

On demand thermal surface modification of carbon fiber for improved interfacial shear strength 按需对碳纤维表面进行热改性以提高界面剪切强度

IF 12.7 1区材料科学

Composites Part B: Engineering Pub Date : 2024-11-12 DOI: 10.1016/j.compositesb.2024.111959

Manesha Fernando , Piers Coia , Mark G. Moloney , Bhagya Dharmasiri , David J. Hayne , Timothy Harte , Elmer Austria Jr. , Behnam Akhavan , Luke C. Henderson

{"title":"On demand thermal surface modification of carbon fiber for improved interfacial shear strength","authors":"Manesha Fernando , Piers Coia , Mark G. Moloney , Bhagya Dharmasiri , David J. Hayne , Timothy Harte , Elmer Austria Jr. , Behnam Akhavan , Luke C. Henderson","doi":"10.1016/j.compositesb.2024.111959","DOIUrl":"10.1016/j.compositesb.2024.111959","url":null,"abstract":"<div><div>A thermally triggered, on demand, surface modification method was exploited using carbon fibers (CFs). Bisdiazomethanes undergo thermal activation to generate extremely reactive carbene intermediates, able to react with the CF surface. Herein, the surface modification of continuous CFs is demonstrated by dipping the fibers in a solution of bisdiazomethane at three different concentrations of 1 mmol, 5 mmol, and 10 mmol, followed by air drying and heating at 120 °C. Tensile strength and Young's Modulus values were preserved in the treated fibers, while the interfacial shear strength (IFSS) values showed significant improvement. The highest IFSS improvement was found (189 %) for the fibers dipped in the 5 mmol solution, with significant increases noted for the 1 and 10 mmol modifications, of 54 % and 97 %, respectively. When the thermal modification was repeated with parameters analogous to a sizing application used in CF manufacture (30 s dip, 2-min heating), 74–79 % improvements in IFSS resulted. Hence, this approach can serve as a simple, scalable, and tunable surface modification method for discontinuous CFs that promotes their use in high value applications.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"289 ","pages":"Article 111959"},"PeriodicalIF":12.7,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142655870","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Microchannels-enabled vertical alignment of hexagonal boron nitride in silicone rubber composites to achieve high through-plane thermal conductivity 通过微通道实现硅橡胶复合材料中六方氮化硼的垂直排列，从而实现高通过面热导率

IF 12.7 1区材料科学

Composites Part B: Engineering Pub Date : 2024-11-12 DOI: 10.1016/j.compositesb.2024.111965

Yuan Ji , Chunhai Li , Hong Wu , Shaoyun Guo , Fengshun Zhang , Jianhui Qiu

{"title":"Microchannels-enabled vertical alignment of hexagonal boron nitride in silicone rubber composites to achieve high through-plane thermal conductivity","authors":"Yuan Ji , Chunhai Li , Hong Wu , Shaoyun Guo , Fengshun Zhang , Jianhui Qiu","doi":"10.1016/j.compositesb.2024.111965","DOIUrl":"10.1016/j.compositesb.2024.111965","url":null,"abstract":"<div><div>Hexagonal boron nitride (h-BN) with high vertical alignment in polymer composites is necessary to improve through-plane thermal conductivity (TC) for thermal management applications. However, how to achieve simple, efficient and precise control of h-BN vertical alignment in polymer composites remains a challenge. Herein, a novel concept of inducing vertical alignment of h-BN in silicone rubber (SR) composites via controlling flow patterns in specially designed microchannels was proposed. The extremely strong elongational and shear stresses provided by the narrow section of the microchannels induced h-BN to align perpendicular to the flow direction. In the subsequent channel, the weak shear stress manipulated h-BN to form a ladder structure in the SR composites, including the vertical core layer and horizontal skin layer. Such ladder structure not only improved the through-plane TC of SR composite but also prevented overheating in the face of local heat sources. Moreover, the obtained SR composites exhibit a through-plane TC of 5.08 W/mK at 34.3 vol % h-BN loading when the horizontal skin layer was removed, indicating excellent heat transfer efficiency for thermal management application. We believe that this work would strengthen both scientific and technological cognition of the filler alignment during polymer composites processing.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"290 ","pages":"Article 111965"},"PeriodicalIF":12.7,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142659202","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}

引用次数: 0

Ultra-lightweight asymmetric hierarchical porous structure for high-efficiency absorption-dominated electromagnetic interference shielding 用于高效吸收电磁干扰屏蔽的超轻非对称分层多孔结构

IF 12.7 1区材料科学

Composites Part B: Engineering Pub Date : 2024-11-12 DOI: 10.1016/j.compositesb.2024.111969

Pengcheng Zhang , Haiyang Li , Haoyu Liang , Huanping Wang , Xiangkun Shan , Yuhang Wang , Xiaoyu Fan , Ke Xu , Qiuyu Zhang , Yanhui Chen

{"title":"Ultra-lightweight asymmetric hierarchical porous structure for high-efficiency absorption-dominated electromagnetic interference shielding","authors":"Pengcheng Zhang , Haiyang Li , Haoyu Liang , Huanping Wang , Xiangkun Shan , Yuhang Wang , Xiaoyu Fan , Ke Xu , Qiuyu Zhang , Yanhui Chen","doi":"10.1016/j.compositesb.2024.111969","DOIUrl":"10.1016/j.compositesb.2024.111969","url":null,"abstract":"<div><div>In this work, ultra-lightweight composite aerogels with a hierarchical pore structure consisting of hollow Fe<sub>3</sub>O<sub>4</sub> microspheres (∼250 nm), hollow MXene microspheres (∼580 nm) and pores (10–40 μm) in polyimide (PI) aerogel are developed through directional freezing, followed by freeze drying and thermal annealing. The composite aerogels exhibit a distinct asymmetric structure, with a top Fe<sub>3</sub>O<sub>4</sub>/PI aerogel layer designed for impedance matching and a bottom MXene/PI aerogel layer aimed at enhancing attenuation. This deliberate structure design not only reduces the density of the composite aerogels but also greatly enhances their absorption of electromagnetic waves. The composite aerogel demonstrates an impressive X-band EMI SE of 69.7 dB, a remarkable absorption coefficient (<em>A</em>) of 0.73, and an excellent surface-specific SE (SE divided by material density and thickness) of 13352 dB cm<sup>2</sup> g<sup>−1</sup>, achieved at a density of just 0.034 g/cm³. Moreover, the composite aerogel exhibits outstanding stability in compression and shielding performance. Following 100 cycles of compression, the compressive strength remains at 94.9 % of the initial compressive strength (98 kPa), and its EMI SE maintains 68.5 dB with a retention rate of 98.2 %. Additionally, the composite aerogel presents outstanding thermal insulation (0.046 W m<sup>−1</sup> K<sup>−1</sup>) and thermal resistance (initial decomposition temperature > 500 °C). This work provides novel insights into the design and fabrication of ultra-lightweight and absorption-dominated EMI shielding materials.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"290 ","pages":"Article 111969"},"PeriodicalIF":12.7,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142659428","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}

引用次数: 0

Personalized customization of in-plane thermal conductive networks by a novel electrospinning method 利用新型电纺丝方法个性化定制面内导热网络

IF 12.7 1区材料科学

Composites Part B: Engineering Pub Date : 2024-11-12 DOI: 10.1016/j.compositesb.2024.111971

Wei-Hua Han , Qing-Yu Wang , Yu Long , Meng Xin , Yun-Ze Long , Chun-Cheng Hao

{"title":"Personalized customization of in-plane thermal conductive networks by a novel electrospinning method","authors":"Wei-Hua Han , Qing-Yu Wang , Yu Long , Meng Xin , Yun-Ze Long , Chun-Cheng Hao","doi":"10.1016/j.compositesb.2024.111971","DOIUrl":"10.1016/j.compositesb.2024.111971","url":null,"abstract":"<div><div>Using one-dimensional (1D) nanofibers to induce the assembly of two-dimensional (2D) nanosheets is of great practical significance; naturally, electrospinning, as the most effective method to prepare long nanofibers, has attracted widespread attention. In this paper, a novel electrospinning method that can induce the directional deposition of nanofibers through electrode arrays has been proposed, optimized, and further applied to regulate the aligned assembly of boron nitride nanosheets (BNNSs) to prepare highly thermally conductive and electrically insulating polyvinylidene fluoride (PVDF)/BNNS composites. In particular, the intermittent-contact collection mode of electrospun nanofibers has further enriched the electrospinning system. The composites prepared by our strategy possess high in-plane thermal conductivity (18.86 W/(m·K)), volume resistivity (nearly 10<sup>15</sup> Ω cm), and breakdown strength (nearly 380 kV/mm). Furthermore, excellent mechanical properties, flexibility, and thermal conduction capability are vividly demonstrated. The proposed electrospinning method and the prepared PVDF/BNNS composites have great potential in the thermal management application of electronic devices in the 5G era.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"290 ","pages":"Article 111971"},"PeriodicalIF":12.7,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142659123","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}

引用次数: 0

Bird's nest inspired aerogels towards ultrahigh strength and robust flame retardancy at extreme environment 受鸟巢启发的气凝胶可在极端环境下实现超高强度和强阻燃性能

IF 12.7 1区材料科学

Composites Part B: Engineering Pub Date : 2024-11-12 DOI: 10.1016/j.compositesb.2024.111966

Hong Zhang , Haiyun Ma , Huiqi Gao , Le Yang , Chang Wang , Yunhong Jiao , Jianzhong Xu

{"title":"Bird's nest inspired aerogels towards ultrahigh strength and robust flame retardancy at extreme environment","authors":"Hong Zhang , Haiyun Ma , Huiqi Gao , Le Yang , Chang Wang , Yunhong Jiao , Jianzhong Xu","doi":"10.1016/j.compositesb.2024.111966","DOIUrl":"10.1016/j.compositesb.2024.111966","url":null,"abstract":"<div><div>The mechanical properties of aerogels remain a critical concern for their application. Inspired from the hierarchical architecture of bird's nests, we have designed an effective biomimetic hybrid strategy for creating an aerogel with ultrahigh strength and robust flame retardancy. The super-molecular micro-to nanofibrils formed by boric acid and melamine act as “twigs” while a small part of biobased polysaccharide agar serves as “glue”. Via the water as the solvent and an eco-friendly freeze-drying method, the obtained boric acid-melamine/agar (BMA) aerogel with a low density (0.0760 g/cm<sup>3</sup>) exhibited exceptional high compressive strength, reaching up to 3.92 MPa at 80 % strain. A piece of the BMA aerogel with 10 cm<sup>2</sup> can resist a motorcycle (150 kg) easily without any deformation. Additionally, the BMA aerogel demonstrated outstanding inherent flame retardant property (achieving UL-94 V-0 rating with relatively low the heat release, total heat release and CO release rate values) as well as superior thermal insulating properties (with a thermal conductivity as low as 0.0364 W/m⋅K). Given the distinctive mechanical properties and excellent other properties, the BMA aerogels hold great promise for potential promise in energy-saving and thermal protection applications. and the superior stiffness mechanism behind this performance is also analyzed.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"290 ","pages":"Article 111966"},"PeriodicalIF":12.7,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142659425","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}

引用次数: 0

Ultra-high energy storage efficiency achieved through the construction of interlocking microstructure and excitation of depressor effects 通过构建互锁微结构和激发减压器效应实现超高储能效率

IF 12.7 1区材料科学

Composites Part B: Engineering Pub Date : 2024-11-12 DOI: 10.1016/j.compositesb.2024.111943

Yuxin Hao , Yongping Pu , Jinbo Zhang , Haochen Xie , Xiang Lu , Qiao Pan , Lei Zhang , Bo Wang , Haoze Li

{"title":"Ultra-high energy storage efficiency achieved through the construction of interlocking microstructure and excitation of depressor effects","authors":"Yuxin Hao , Yongping Pu , Jinbo Zhang , Haochen Xie , Xiang Lu , Qiao Pan , Lei Zhang , Bo Wang , Haoze Li","doi":"10.1016/j.compositesb.2024.111943","DOIUrl":"10.1016/j.compositesb.2024.111943","url":null,"abstract":"<div><div>Glass-ceramic capacitors struggle to balance high energy storage efficiency (<em>η</em>>90 %) and sufficient breakdown field strength (<em>E</em><sub>b</sub>), hindering their use in energy storage. Interface polarization, caused by the accumulation of free charge, reduces breakdown strength. We prepared glass-ceramic materials with varying contents of the glass phase using traditional melting techniques, adjusting the glass content to enhance an interlocking structure between the glass and crystal phases, reducing Interface polarization. Divalent metal oxide BaO in the glass stimulated a depressor effect, filling gaps and increasing resistivity. The optimal composition (<em>x</em> = 0.2) achieved a 95 % energy storage efficiency and an energy storage density of 4.4 J/cm<sup>3</sup> at 680 kV/cm, while <em>x</em> = 0.25 reached an ultra-high energy storage efficiency of 99 %. Increasing glass content reduced activation energy for Interface polarization (<em>E</em><sub>i</sub>) from 1.27 eV to 1.08 eV. Samples with <em>x</em> = 0.2 exhibited low dielectric loss (∼0.005), high dielectric constant (∼142), ultra-high power density (∼52.8 MW/cm<sup>3</sup>), and ultra-fast discharge speed (∼26 ns), suggesting future potential for high-performance glass-ceramic materials.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"290 ","pages":"Article 111943"},"PeriodicalIF":12.7,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142659422","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}

引用次数: 0

Nitrogen-doped porous carbon skeleton derived from glycine boosting superior rate capability and long lifespan for Na3V2(PO4)3 with high thermal safety 由甘氨酸衍生的掺氮多孔碳骨架可提高 Na3V2(PO4)3 的卓越速率能力和长寿命，并具有高热安全性

IF 12.7 1区材料科学

Composites Part B: Engineering Pub Date : 2024-11-12 DOI: 10.1016/j.compositesb.2024.111977

Rui Du , Changcheng Liu , Que Huang , Baofeng Zhang , Hongyuan Ding , Jianghui Xie , Shengnan He , Yaxiong Yang , Chao Zheng , Yanjun Chen

{"title":"Nitrogen-doped porous carbon skeleton derived from glycine boosting superior rate capability and long lifespan for Na3V2(PO4)3 with high thermal safety","authors":"Rui Du , Changcheng Liu , Que Huang , Baofeng Zhang , Hongyuan Ding , Jianghui Xie , Shengnan He , Yaxiong Yang , Chao Zheng , Yanjun Chen","doi":"10.1016/j.compositesb.2024.111977","DOIUrl":"10.1016/j.compositesb.2024.111977","url":null,"abstract":"<div><div>Currently, the both low electronic and ionic conductivity have seriously hindered the further application of Na<sub>3</sub>V<sub>2</sub>(PO<sub>4</sub>)<sub>3</sub> (NVP). Nevertheless, traditional carbon materials modification only improves the electronic conductive property, rather than modifying the ionic conductivity. Herein, N-rich carbon resources of glycine (GLY) is introduced to synthesize NVP, which can act as reducing agent and morphology inducer to optimize NVP sample. Notably, GLY supplies favorable N-doped carbon skeleton, and this defective carbon structure benefits for the accelerated electronic conductivity. Besides, porous construction is established after introducing GLY. This unique morphology significantly improves the infiltration effects of electrolyte, thus providing more electrochemical active sites for Na<sup>+</sup> de-intercalation to improve the ionic conductivity. Meanwhile, porous framework supplies enough space for the shrinkage of crystal cells, so the stress-strain effect is highly restrained, which is demonstrated by Ex-situ XRD. The stabilized crystal and morphological structure of NVP@GLY-2 has been verified by after-cycled XRD/SEM/XPS. Highly improved kinetic characteristics are also investigated by In-situ EIS. Moreover, Accelerating Rate Calorimeter (ARC) measurements indicate that NVP@GLY-2-based half and full cells also have excellent thermal safety properties. Comprehensively, NVP@GLY-2 reveals a high capacity of 119 mAh g<sup>−1</sup> at 0.1 C. It reveals 84.5 and 71.2 mAh g<sup>−1</sup> at 10 and 50 C, with capacity retention rates of 88.9 % and 85.8 % after 1000 cycles.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"290 ","pages":"Article 111977"},"PeriodicalIF":12.7,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142659423","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}

引用次数: 0