APPLIED COMPOSITE MATERIALS
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2023
·Vol. 30
·期 6
·1929-1947
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IF 2.3
Chang Kai,Qin Yan,Zou Zhenyue,Huang Zhixiong
Oxidation at high temperatures impairs the properties of carbon fiber, limiting its application in thermal protection materials. In this work, alumina fiber hybrid carbon fiber reinforcements (Al 2 O 3 f-CF) were designed to improve the high-temperature oxidation resistance of carbon fiber, and Al 2 O 3 f-CF hybrid fiber reinforced ceramicizable phenolic resin matrix composites (ACFRP) were prepared to investigate thermal stability, mechanical properties, ablation resistance, and interface evolution at high temperatures. The results showed that after being treated at 1600 ℃ for 10 min, the flexural strength reached 43.74 MPa, which increased by 98.1%. The linear ablation rate and mass ablation rate of ACFRP were 0.06 mm/s and 0.056 g/s, respectively. The interface analysis showed that the coating of alumina fiber protected the carbon fiber well at high temperatures. Fiber hybrid provides a simple and effective method to improve the high-temperature oxidation resistance of carbon fiber.
研究领域:
材料科学
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航空航天工程
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高影响因子
Journal of Materials Research and Technology-JMR&T
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2023
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IF 6.4
Fang Zhou,Zhenbo Zhao,Deqi Jing,Xinghua Zhang,Peng Wang,Weiguo Su,Shouchun Zhang
Carbon fiber reinforced polyamide-imide (CF/PAI) composites are potential candidates for high temperature applications under high stress conditions. However, the structure–property relationships of CF/PAI are not clear. This work presented an experimental investigation into the influence of interfacial modification and heat treatment on the microstructures and mechanical properties of CF/PAI composites. The CF/PAI interfacial interactions were improved by the combined effect of chemical bonding between the PAI-compatible sizing and CF as well as hydrogen bonding between the sizing and matrix. Meanwhile, heat treatment enhanced the modulus of matrix, which was beneficial to stress transfer in the interfacial region. Therefore, the interlaminar shear strength (ILSS), flexural strength, and flexural modulus of RS 0.6 -CF/PAI composites (the concentration of PAI-compatible sizing agent was 0.6 wt%) were remarkably improved by 81.3%, 23.7%, and 39.1% compared with the control specimen. Microstructure examinations of modified and unmodified CF/PAI composites showed that both interfacial modification and heat treatment played an important role in the transitions of failure mode under interlaminar shear loading and flexural loading. These findings provide an effective method to tailor the microstructures of CF/PAI composites for achieving the desired properties.
研究领域:
材料科学
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复合材料工程
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DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
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2023
·
IF 6.2
Wene Du,Yuying Feng,Jiahui Jiang,Ting Zhao,Guancheng Xu,Li Zhang
Urea-assisted water splitting is a promising method for the production of H 2 with reduced energy consumption, which can also purify urea-rich wastewater. Nevertheless, the development of bifunctional electrocatalysts that exhibit exceptional efficiency and affordability for the urea oxidation reaction (UOR) and hydrogen evolution reaction (HER) remains a challenging task. In this work, a MOFs-derived bifunctional electrode of Co-doped Cu 2−x Se with a hollow nanorod structure assembled from nanoparticles is prepared on a copper foam substrate (Co x Cu 2−x Se/CF) by a three-step synthesis process. As anticipated, the Co x Cu 2−x Se/CF self-supported electrode shows promising performance in terms of the UOR and HER. This can be attributed to the unique hollow nanorod structure assembled from nanoparticles and incorporation of Co dopants, which can expose more active sites, enhance the electrochemical surface area, and facilitate faster reaction kinetics. When Co x Cu 2−x Se/CF was employed as the self-supported electrode for H 2 production in a coupled HER||UOR system, only 1.51 V was required to drive a current density of 10 mA cm −2 , which is 120 mV lower than the traditional water electrolysis system. And it also displays an outstanding stability, the current density retention ratio is approximately 82.1 % after 70 h. Noteworthy, XRD, XPS and in-situ Raman analysis reveal that Co x Cu 2−x Se/CF can form highly active CuO and amorphous Cu(OH) 2 as the active sites in UOR. This work proposes a strategy for H 2 production and urea-containing wastewater treatment.
研究领域:
材料科学
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电化学
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高影响因子
COMPOSITES SCIENCE AND TECHNOLOGY
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2024
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IF 8.3
Yue Qiao,Hang Jia,Yu Zhang,Wenqi Zhao,Enmao Zhang,Shouhai Zhang,Xigao Jian,Cheng Liu
The mechanical properties of carbon fiber (CF) reinforced high-performance thermoplastic composites are significantly compromised due to inadequate interface bonding between CF and matrix. In this study, electrochemical polymerization techniques were employed to modify CFs with polypyrrole (PPy), poly-aniline (PANI), and poly- o -phenylenediamine (PoPd), to systematically investigate the impact of conjugated polymers on the interfacial properties of CF/copoly (phthalazinone ether sulfone ketone)s (PPESK) composites through a combination of experimental and molecular dynamics (MD) approaches. The findings revealed distinct differences among these conjugated polymers in terms of their effects on both IFSS and ILSS for CF/PPESK composites. Among all tested laminates, PoPd@CF-60s/PPESK exhibited the highest IFSS, ILSS and flexural strength values of 39.8 MPa, 75.6 MPa, and 1494 MPa, respectively, 94.1 %, 20.6 %, and 47.6 % higher than those of CF-desized/PPESK, without compromising CFs strength and thermal resistance of CF/PPESK composites. MD simulations combined with fracture morphology analysis confirmed that compatibility between conjugated polymers and matrix played a pivotal role in enhancing interface properties for CF/PPESK composites. Furthermore, the AFM outcomes demonstrated that the PoPd layer could serve as the modulus transition layer between the CF phase and the PPESK phase, which effectively enhancing the load transfer efficiency between the two phases under external forces. To summarize, this work presents a straightforward yet non-destructive approach that effectively enhances the interface strength within advanced CF reinforced high performance thermoplastic polymer composites (CFRHPTPs).
研究领域:
材料科学
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复合材料
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高影响因子
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
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2024
·
IF 8.1
Jin Yue,Sun Liping,Wang Yuechen,Huo Lihua,Zhao Hui
Electrocatalytic nitrate reduction reaction (NO 3 RR) provides a promising method for ammonia (NH 3 ) producing. It is urgent to develop efficient catalysts with improved NO 3 RR performance. In this paper, Cu 3 P@Co(OH) 2 /CF heterostructure catalyst is constructed by electrodeposition of cobalt hydroxide (Co(OH) 2 ) nanosheet on the surface of copper phosphide (Cu 3 P) nanorod , and used as a self-supporting cathode for electrocatalytic reduction of nitrate to ammonia. The NH 3 yield reaches 0.19 mmol h −1 cm −2 at a potential of −0.17 V vs. RHE, and the faraday efficiency (FE) is 86.7 %. The study manifests that the built-in electric field generated at the p-n heterojunction interface optimizes the electron migration kinetics, and promotes the adsorption of nitrate and the convention of intermediate product NO 2 − into ammonia. As a consequence, the selectivity of NH3 is improved. The Zn-nitrate battery is assembled with the designed catalyst as the cathode, to reach a peak power density of 5.16 mW cm −2 . The prepared catalyst realizes three effective functions: power output, ammonia synthesis , and nitrate pollutants treatment.
研究领域:
环境科学
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电化学
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材料科学
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高影响因子
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
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2024
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IF 8.1
Heming Wang,Shan Cheng,Jingyao Feng,Qingguang Bao,Jiangang Liu,Bing Wang,Binlin Jiang,Zaiyu Wang,Nan Li,Xigao Jian
This study focuses on synthesizing a range of hydrolysis-modified poly(phthalazione ether nitrile) polymers with different quantities of carboxyl groups (HPPEN-COOH). These polymers are intended to enhance the bonding strength between carbon fibers (CFs) and poly(phthalazine ether sulfone ketone) (PPESK). The chemical structure of HPPEN-COOH was elucidated using FTIR spectroscopy, and the presence of HPPEN-COOH as a coating on the CFs surface was confirmed by XPS analysis. Compared with the UCF/PPESK composite, the interlaminar shear strength of the CF-5/PPESK composite increased by 39 %. In the DMA test, the service temperature and storage modulus of the CF-5/PPESK composite were increased to 268 °C and 112 GPa, respectively. Furthermore, the composite showed satisfactory performance in hydrothermal aging studies. This method is simple and easy to implement, has the potential for large-scale industrial production, and is an environmentally friendly method to improve the interface properties of the CF/PPESK composite.
研究领域:
材料科学
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复合材料
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高影响因子
Foods
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2024
·Vol. 13
·期 12
·1911
·
IF 4.7
Le Wang,Jianguang Liu,Yan Shen,Yanli Yin,Zifu Ni,Jun Xi,Yuansen Hu,Qipeng Yuan
The preparation of a novel composite carrier of polydopamine-modified carbon fiber/polyurethane foam (PDA-CF/PUF) was proposed to improve cell immobilization and the fermentation of xylitol, which is an important food sweetener and multifunctional food additive.Candida tropicaliswas immobilized on the composite carrier by adsorption and covalent binding. The properties and immobilization mechanism of the composite carrier and its effect on immobilized cells were investigated. It showed that the modification of PDA enhanced the loading of CF on the PUF surface and the adhesion of cells on the composite carrier surface. Also, the biocompatibility of carriers to cells was improved. In addition, the introduction of PDA increased the active groups on the surface of the carrier, enhanced the hydrophilicity, promoted the cells immobilization, and increased the xylitol yield. It was also found that expression of the related gene XYL1 in cells was significantly increased after the immobilization of the PDA-CF/PUF composite carrier during the fermentation. The PDA-CF/PUF was an immobilized carrier with the excellent biocompatibility and immobilization performance, which has great development potential in the industrial production of xylitol.
研究领域:
生物技术
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食品科学
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DOI
PubMed
高影响因子
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
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2026
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IF 6.3
Changxiang Xie,Bingzhu Wang,Yonghui Yu,Wenhao Dou,Jing Guo,Haiwang Wang,Jianjun Sha
UHTCs are expected to be widely used in the aerospace industry due to their excellent ablation resistance. Currently, the low-temperature densification technology for 3D carbon fibre reinforced UHTCs is relatively scarce, meanwhile the long-term and high-temperature ablation-resistant materials still require further development. Herein, combining with reactive hot pressing at 1800 ℃, the highly dense 3D C f /ZrC-SiC composites were innovatively prepared through cyclic infiltration of slurry into 3D carbon fibre preform. The 3D C f /ZrC-SiC exhibited an excellent ablation resistance under a heat flux of 8.9 MW/m². By regulating the ratio of in situ phases ZrC and SiC, 3D C f /ZrC-SiC had an optimal mass ablation rate of only 0.75 mg/s and an optimal linear ablation rate of only -0.20 μm/s during the ablation process. The excellent ablation resistance was attributed to the formation of a dense ablation layer, which effectively inhibited the matrix from further ablation.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
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2026
·
IF 12.5
Ning Luo,Xiaqing Zhang,Lujia Zhu,Yuqing Yin,Jiarui Wu,Tong Li,Congcong Liu
ZZP-TENGs are designed for monitoring the HCHO concentration with high-pressure gas streams. • ZZP-TENG exhibited excellent sensing performance of HCHO. • ZZP-TENGs can be employed to construct an HCHO early warning system. • ZZP-TENG is applicable for detecting changes in indoor HCHO concentration. Formaldehyde (HCHO), a hazardous volatile organic compound, poses serious threats to human health in daily life and industrial environments. Herein, a pulse airflow-driven triboelectric nanogenerator (ZZP-TENG) with a ZIF-8/ZIF-67/copper foam composite microstructure was fabricated for high-sensitivity HCHO detection. Benefiting from micro/nano structural modification, the ZZP-TENG efficiently harvested ambient mechanical energy, yielding a short-circuit current of 3.62 μA and a maximum output power of 45.63 μW. Its stable energy output could drive 54 LEDs and charge various capacitors, demonstrating reliable energy-harvesting capacity. The sensor exhibited an 80% response toward HCHO at 40 ppm, along with a 30 s response time and an 80 s recovery time at 20 ppm. To verify practical indoor application feasibility, a simulated post-renovation HCHO release scenario was constructed with HCHO-containing wood blocks, supporting accurate indoor air quality assessment and environmental safety evaluation. In this study, an improved extreme learning machine (ELM) algorithm was employed to classify HCHO signals from the ZZP-TENG sensor. The ELM model realized 100% HCHO concentration recognition accuracy and constructed a three-level safety early warning system, achieving real-time intelligent indoor HCHO monitoring. This work realizes simultaneous airflow energy harvesting and HCHO detection, providing a novel route for integrated gas sensors and broadening the application of TENGs in self-powered indoor environmental monitoring. After the decoration of indoor residential and office spaces, formaldehyde (HCHO) is continuously released from building materials, furniture, and coatings, posing a serious threat to human health due to its chronic toxicity and carcinogenicity. When HCHO accumulates beyond the safe threshold, it causes eye irritation, respiratory inflammation, and long-term immune system disorders. In this study, a pulse airflow-driven triboelectric nanogenerator (ZZP-TENG) with a ZIF-8/ZIF-67/copper foam composite microstructure was fabricated for high-sensitivity HCHO detection. The self-powered device efficiently harvested ambient mechanical energy and delivered sufficient electrical output for continuous sensing. By integrating with a machine learning framework, the system achieved precise and graded evaluation of dynamic formaldehyde concentration throughout a six-week natural attenuation process. Furthermore, the integrated wireless alarm system enables real-time risk warning once pollutants exceed the safety threshold, realizing intelligent, long-term, and safe indoor air quality monitoring for residential and office environments. Download: Download high-res image (182KB) Download: Download full-size image
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高影响因子
POLYMER COMPOSITES
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2026
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IF 4.9
Zixuan Liu,Yi Dan,Long Jiang,Yun Huang
In this study, anionic/nonionic (sodium dodecyl sulfonate/polysorbate-80), cationic/nonionic (cetyltrimethylammonium bromide/polysorbate-80), and purely nonionic (Triton X-100) were employed as emulsifier systems, with contents of 10% to 30% to prepare a series of polyetherimide-based emulsion sizing agents. A solution-type sizing agent (S-PEI) was also introduced as an ideal benchmark. The sizing agents were subsequently applied to carbon fibers. The effects of emulsifier type and content on the thermal stability of the sizing agents and the interfacial properties of carbon fiber reinforced poly(ether ether ketone) composites were systematically investigated. The results indicate that emulsifiers reduced the thermal stability of the sizing agents, with the anionic/nonionic system showing the best performance. Increasing emulsifier content progressively decreased thermal stability; above 25%, decomposition temperature fell below the composite processing temperature. Composites with the anionic/nonionic system showed the highest interlaminar shear strength (ILSS) and matrix-dominated failure, while others mainly exhibited interfacial failure with much lower ILSS. ILSS first increased then decreased with emulsifier content, peaking at 49.1 MPa at 20%, which is 58%~60% higher than untreated and desized fibers, and is comparable to that of the S-PEI. Failure mode evolved from interfacial to matrix failure, then reverted to interfacial failure. Highlights Ionic emulsifiers cut emulsion size and boost stability. Emulsifiers lower thermal stability; the anionic/nonionic system is optimal. 20% emulsifier yields 49.1 MPa interlaminar shear strength, a 60% increase. Above 25% emulsifier, decomposition is below processing temperature. Optimal emulsifier shifts failure from interfacial to matrix.
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高影响因子
CERAMICS INTERNATIONAL
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2026
·
IF 6
Cuiyan Li,Shuai Zhang,Haibo Ouyang,Li Wang,Xinnuo Wang,Xinge Niu,Xilin Wang,Xiaoyue Sun,Yumiao Xing,Jiaqi Liu,Mengyao He
Aiming at the urgent demand for multifunctional materials integrating thermal protection, stealth performance and load-bearing capacity in the field of next-generation hypersonic aircraft, this study develops a facile, template-free self-expansion foaming route to fabricate carbon fiber-reinforced porous (Hf, Zr, Ti)C medium-entropy ceramics, denoted as C f /(Hf, Zr, Ti)C (HZT). The influence of carbon fiber content (0–10 wt%) on the microstructure, thermophysical properties, mechanical performance, and electromagnetic wave absorption characteristics is systematically investigated. The synergistic mechanism among lattice distortion-induced polarization enhancement, porous structure-mediated multiple scattering, and carbon fiber-constructed conductive networks is elucidated, which effectively breaks the inherent trade-off between thermal insulation, mechanical strength, and microwave absorption in conventional porous ultra-high temperature ceramics. The sample with 6 wt% carbon fiber (HZT-06) possesses a porosity of 70.2% and a low density of 0.67 g/cm 3 . It exhibits a room-temperature thermal conductivity of 0.253 W m −1 K −1 , exceptional broadband microwave absorption with a minimum reflection loss (RLmin) of −59.69 dB and an effective absorption bandwidth (EAB, RL ≤ −10 dB) of 6.32 GHz at a matching thickness of 2.3 mm, and a high compressive strength of 49.62 MPa. This work realizes the multifunctional integration of low thermal conductivity, high load-bearing capacity and strong broadband microwave absorption at room temperature, and provides promising design strategies and fundamental data support for the development of advanced multifunctional thermal protection materials for hypersonic vehicles.
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高影响因子
Coatings
·
2025
·Vol. 15
·期 7
·760
·
IF 2.8
Tianyi Yang,Song Xue,Liming Jiang,Jiuming Lei,Wenjing Li,Yiwei Han,Zhijie Wang,Jinlong Zuo,Yuyang Wang
Microbial fuel cells (MFCs) generate electricity through the microbial oxidation of organic waste. However, the inherent electrochemical performance of carbon felt (CF) electrodes is relatively poor and requires enhancement. In this study, nickel oxide (NiO) was successfully loaded onto CF to improve its electrode performance, thereby enhancing the electricity generation capacity of MFCs during the degradation of treated wastewater. Scanning electron microscopy (SEM), X-ray diffraction (XRD), and energy diffusion spectrometer (EDS) analyses confirmed the successful deposition of NiO on the CF surface. The modification enhanced both the conductivity and capacitance of the electrode and increased the number of microbial attachment sites on the carbon fiber filaments. The prepared CF–NiO electrode was employed as the anode in an MFC, and its electrochemical and energy storage performance were evaluated. The maximum power density of the MFC with the CF–NiO anode reached 0.22 W/m2, compared to 0.08 W/m2for the unmodified CF anode. Under the C1000-D1000 condition, the charge storage capacity and total charge output of the CF–NiO anode were 1290.03 C/m2and 14,150.03 C/m2, respectively, which are significantly higher than the 452.9 C/m2and 6742.67 C/m2observed for the CF anode. These results indicate notable improvements in both power generation and energy storage performance. High-throughput gene sequencing of the anodic biofilm following MFC acclimation revealed that the CF–NiO anode surface hosted a higher proportion of electroactive bacteria. This suggests that the NiO modification enhances the biodegradation of organic matter and improves electricity generation efficiency.
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高影响因子
危险品化学品经营许可证（带存储）