COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2022
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IF 5.518
Zhixuan Huang,Kaifeng Yu,Doudou Wang,Ye Zhang,Lili Li,Ce Liang
Herein, a facile way was reported for fabrication of the anode nanocomposites with efficient lithium/sodium storage and excellent cycling stability. Iron phytate nanoparticles embedded in TiO 2 (IP/TiO 2 ) was prepared by coaxial electrospinning with the aid of PAN and PVP. N, P-doped Fe 2 P@TiO 2 core-shell carbon nanofibers (Fe 2 P@TiO 2 /CNF) was prepared after heat treatment. When Fe 2 P@TiO 2 /CNF were introduced as a self-supporting anode in lithium/sodium-ion batteries, Fe 2 P core supplied high energy density , and N, P-doped carbon fiber could induce the structural defects, facilitate electron transport and improve electrical conductivity . Moreover, TiO 2 shell inhibited volumetric expansion and pulverization of Fe 2 P core and improved the cycling stability of the anode. The Fe 2 P@TiO 2 /CNF electrode exhibited a large reversible capacity (LIB: 1175.7 and SIB: 519.8 mAh g −1 ), excellent cycling ability and outstanding rate performance. As anode in LIBs for Fe 2 P@TiO 2 /CNF, capacitance and diffusion control played important roles in Li + intercalation and deintercalation, simultaneously. When Fe 2 P@TiO 2 /CNF anode was used in SIBs, capacitive control behavior occupied a major role and displayed outstanding electrochemical performance . This work offers a possibility for designing anode nanocomposite with outstanding capacity and cycling stability in lithium/sodium-ion batteries.
研究领域:
材料科学
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能源存储
✓ 已验证
DOI
高影响因子
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
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2026
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IF 8.2
Wenhao Duan,Pengcheng Deng,Genrui Xu,Zhenming Chen,Peng Li,Canhui Lu,Zehang Zhou
Smart materials with multi-responsive soft actuators with desirable electromagnetic interference (EMI) shielding performance are greatly required for next-generation electronics. Herein, a mesoscale assembly strategy via layer-by-layer vacuum-assisted filtration is proposed to fabricate MXene/Fe 3 O 4 /CNF (MC) composite films with precise asymmetric concentration gradients. Driven by the significant hygroscopic swelling mismatch and superparamagnetism, the MC film exhibits high sensitivity and excellent actuation performance under humidity and external magnetic field stimuli. Programmable 2D-to-3D biomimetic “flower buds” and non-contact precise magnetic navigation are successfully achieved. Furthermore, leveraging the highly conductive surface of MXene, a smart switch is developed to convert environmental humidity fluctuations directly into logical electrical (ON/OFF) signals. The introduction of Fe 3 O 4 nanoparticles and the physical gradient structure effectively optimize the hysteresis loss of electromagnetic waves and the bottom-layer back-reflection-triggered multilevel energy dissipation, achieving an impressive EMI SE of 43.4 dB, governed by a reflection-dominated mechanism uniquely enhanced by internal absorption. Combined with rapid, wide-temperature-range photothermal conversion, this work provides a novel design paradigm for intelligent soft robotics and flexible passive electronics in complex environments.
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DOI
高影响因子
JOURNAL OF SOLID STATE ELECTROCHEMISTRY
·
2017
·Vol. 22
·期 4
·1185-1195
·
IF 2.316
Xie Xueyao,Yin Xin,Zhai Jifeng,Song Lixin,Du Pingfan,Li Ni,Xiong Jie
The flexible TiC/carbon nanofiber (TiC/C NF) film was prepared by electrospinning, stabilization, and carbonization. All the obtained TiC/CNFs had rough surface and random orientation, and the TiC nanoparticles (NPs) were uniformly dispersed on the CNFs. With the increase of TiC NPs, the flexural property of TiC/CNF film increased. While, the electrical conductivity increased, reaching a largest value before decreasing as the amount of TiC NPs increases. These highly flexible films showed promising electrical conductivity and electrocatalytic activity. Hence, they were employed as counter electrodes (CEs) for flexible dye-sensitized solar cells (FDSSCs). After the optimization of the amount of TiC NPs in CNFs (when the Tip content in precursor was 12 wt%), a high conversion efficiency of 3.80% was obtained. This is due to its optimum electrical conductivity and catalytic active sites. Based on the optimum amount of TiC NPs, the mesopores TiC/CNF composite films were fabricated by the introduction of various amount of polymethyl methacrylate (PMMA) in an electrospun solution. With the ratio of PMMA/(PAN/PVP) increasing, the specific surface area and the electrical conductivity increased, reached the largest values corresponding to 1:1, and then decreased. The increased surface area and conductivity facilitated the diffusion of electrolyte and reduction of triiodide, resulting in the improvement of the properties of CEs. When the FDSSCs were assembled with mesoporous TiC/CNF films as CEs, the conversion efficiency can be further enhanced up to 4.47%, which can be even comparable to the Pt/FTO CE.
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研究领域:
材料科学
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纳米技术
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太阳能
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
Journal of the Mechanical Behavior of Biomedical Materials
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2018
·
IF 3.239
Jianhai Wang,Hong Gao,Lilan Gao,Yun Cui,Zhengyuan Song
Uniaxial tensile tests were performed to investigate the mechanical properties of the ultra-high molecular weight polyethylene (UHMWPE) with different modification conditions. It was found that the different modification conditions have great influence on the mechanical properties of the UHMWPE. Subsequently, the uniaxial ratcheting behaviors of the UHMWPE/CNF and UHMWPE/HA composite materials were observed under the stress-controlled cyclic tensile condition at room temperature. The dependence of uniaxial ratcheting of composite materials on the mean stress, stress amplitude , stress rate and nano-material content was investigated. The results show that the ratcheting strain and its rate of the two composite materials increase as the mean stress and stress amplitude increase, however, the ratcheting strain and its rate decrease with the increase of the stress rate and nano-material content. Furthermore, it is found that the ratcheting strain of the UHMWPE/HA composite material is more remarkable than that of the UHMWPE/CNF composite material. A new viscoplastic constitutive model is proposed to describe the ratcheting behavior of the UHMWPE composite materials. In this model, a new viscosity function and modified kinematic hardening law were employed. Comparison of simulation and experimental results shows that the simulations are in good agreement with the experimental results.
研究领域:
材料科学
·
生物医学工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
POLYMER
·
2024
·
IF 4.1
Yanghang Liu,Heyu Zhang,Tao Zhang,Yuefei Ding,Siqi Zhang,Dan Yu,Wei Wang
Gas sensors are crucial in various applications such as environmental monitoring, industrial safety, and air quality control. However, many of these sensors still encounter significant challenges, including complex fabrication processes, low sensitivity, and poor stability. This study presents the development of a novel photochromic sensor using spiropyran (SP), waterborne polyurethane (WPU), and cellulose nanofiber (CNF) aerogel, aiming to overcome these challenges and provide highly sensitive detection of acidic gases. Under ultraviolet (UV) irradiation, the SP component in the aerogel isomerizes to its open-ring merocyanine (MC) form, which is further protonated to protonated merocyanine (MCH) in the presence of acid vapors. Systematic testing reveals that the SP/WPU/CNF aerogel sensor exhibits a rapid response time of 20 s under UV light irradiation and retains 75 % of its photoresponsivity after 20 cycles, demonstrating excellent durability. Additionally, the sensor exhibits a response time of 20 s to acidic gases, with a color change from purple to yellow when exposed to HCl gas at concentrations as low as 1 ppm. After undergoing five protonation and recovery cycles, the sensor maintains a certain level of acid responsiveness. These exceptional properties highlight the potential of the SP/WPU/CNF aerogel-based sensor to be a highly sensitive, efficient, and stable solution for acidic gas detection.
研究领域:
材料科学
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环境科学
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Yongqian Shi,Xiaoyong You,Haoxin Niu,Can Liao,Longcheng Tang,Jiefeng Gao,Pingan Song,Wei Zhang,Ting Qiu
In view of the prominent issues in compatibility, sustainability, and performance stability of existing polymer-based electromagnetic interference (EMI) shielding films, this work proposes a strategy for preparation of a series of novel flame retardant and EMI shielding composite films, which were fabricated using cellulose nanofibers (CNF)/MXene/chitosan-modified hollow glass microspheres (HGM@CS) as the matrix, and flame-retardant thermoplastic polyurethane (TPU/APP-NH 2 @LDH) as the encapsulation shell. The results demonstrated that the CNF/MXene/HGM@CS/TPU/APP-NH 2 @LDH (CM x HTA) composite films exhibited good hydrophobicity (with a water contact angle of 100.6°), and superior flame retardancy. The peak heat release rate and total heat release of as-prepared CM 2 HTA composite film were decreased by 53.0% and 52.2%, respectively, compared with those of pure CNF/TPU composite film. The improvement in flame-retardant performance is attributed to the synergistic mechanism of APP-NH 2 @LDH, HGM@CS, and MXene in both the gas phase and the condensed phase. Due to the electromagnetic shielding mechanism of “surface reflection-internal absorption”, the values of EMI shielding effectiveness of the CM 3 HTA composite film reached 43.5 dB and 56.7 dB in the X-band and K-band, respectively, far exceeding the requirements for commercial shielding materials (≥20 dB). This study provides a new approach for developing high-performance, multifunctional, and environmentally friendly electromagnetic shielding composites in the application of electronic protection, smart packaging and wearable devices, etc.
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DOI
高影响因子
Materials Today Communications
·
2025
·
IF 4.5
Jinzhao Shu,Xueyi Dong,Yuqi Zhang,Zhenzhen Pan,Tianyu Lu,Shijun Kang,Qianwei Liu,Zhiguo Hou,Sen Wang,Bin Yang
The growing danger of bacterial infections has resulted in an urgent need for developing new antibacterial approaches. In this study, cellulose nanofiber-copper sulfide (CNF-CuS), calcium peroxide (CaO 2 ), and L-arginine (LA) were incorporated into polyvinyl alcohol (PVA) and chitosan (CS) hydrogels to fabricate a multifunctional PVA/CS/CNF-CuS/CaO 2 /LA composite hydrogel with near-infrared (NIR)-activated photothermal, photodynamic, and gas therapies. Antibacterial tests on PVA/CS/CNF-CuS/CaO 2 /LA showed that, after a 10-minute NIR irradiation period, the hydrogel achieved antibacterial rates of 99.3% against E. coli and 99.7% against S. aureus. The marked improvement in bactericidal performance can be attributed to the synergistic interaction of elevated temperature, reactive oxygen species (ROS), and nitric oxide (NO). Given the effective antibacterial property of the PVA/CS/CNF-CuS/ CaO 2 /LA hydrogel, this study offers new insights into the design of composite hydrogels for wound healing and wound dressing applications.
研究领域:
生物材料学
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医学工程
·
抗菌研究
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Bohan Zhang,Jinglei Yang,Qiaojun Jiang,Ruping Zheng,Liting Qiu,Jingxin Chen,Ruiyun You,Zixing Yan,Yudong Lu
In clinical settings, there is a significant demand for the monitoring of therapeutic drugs. Surface-enhanced Raman spectroscopy (SERS) has shown considerable potential in the field of drug analysis. Designing SERS sensors with high sensitivity, strong stability, excellent reproducibility is a challenging and fascinating goal in the field of chemical measurement. In this study, a simple and portable AuNPs/C-CNF/PVA hydrogel SERS sensor was developed, composed of gold nanoparticles (AuNPs), carboxylated cellulose nanofibers (C-CNF) and polyvinyl alcohol (PVA). Due to the “screening” effect of the hydrogel network, it is capable of separating hydrophobic molecules from macromolecules and enabling the enrichment of hydrophilic small molecules. When used to analyze 6-thioguanine (6-TG) and methylene blue (MB) in plasma, the AuNPs/C-CNF/PVA hydrogel SERS sensor showed limit of detection (LOD) as low as 7.9 × 10 −8 M for 6-TG and 3.3 × 10 −9 M for MB. Based on this technology, in blood spiking experiments using clinical samples, the recovery rate for 6-TG ranged from 99.16 % to 103.51 %, while the recovery rate for MB ranged from 93.13 % to 101.70 %. Therefore, the AuNPs/C-CNF/PVA hydrogel SERS sensor enables ultra-sensitive, integrated detection of drugs in plasma through separation and enrichment, without the need for complex pretreatment steps. This approach holds great promise for application in clinical therapeutic drug monitoring.
研究领域:
分析化学
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生物医学工程
·
药物分析
✓ 已验证
产品关联
DOI
高影响因子
CARBOHYDRATE POLYMERS
·
2025
·
IF 12.5
Haofei Sima,Bo Liu,Xiaolin Shi,Chunling Zhang
The rapid development of communication technologies and flexible human–computer interfaces, necessitates the fabrication of a strain sensor with high sensitivity and electromagnetic interference (EMI) shielding performance. The purpose is to monitor human movement and protection from electromagnetic damage. Herein, we prepared tough, conductive, and self-healing carbon nanotube@cellulose/MXene (CCM) acrylamide-based hydrogels to achieve the dual-functional applications of strain sensors and EMI shielding. The carbon nanotubes and cellulose self-assembled into conductive fibers. Then, the two-dimensional MXene nanosheets were interconnected through the conductive fibers while being cross-linked into a complete conductive network through the metal–ligand bonding of Zn 2+ . Owing to the excellent conductivity (9.64 S/m) of the CCM hydrogel and the non-covalent reversible interactions among the components, the composite hydrogel exhibited excellent tensile strain (~424 %), efficient self-healing ability (87.2 %), frost and water retention ( T c < −60 °C), and efficient shielding effectiveness (51.8 dB). Meanwhile, as a strain sensor, it also possessed excellent sensing performance such as high sensitivity (GF = 20.17), wide detection range (0 %–400 %), fast response time (~135 ms), and high stability (~500 cycles). These features provide an idea for the subsequent design of flexible sensing electronics with EMI shielding performance.
研究领域:
材料科学
·
电子工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ACS Sustainable Chemistry & Engineering
·
2025
·
IF 7.3
Lijiaqi Zhang,Chao Wang,Yong Huang,Min Wu
Cellulose nanofiber (CNF) film has been widely studied in recent years because of its high strength, high light transmittance, degradability, and low thermal expansion coefficient. However, challenges like shrinkage, long dehydration times, and poor water resistance limit its large-scale application. Herein, we report a facile and environmentally friendly method to prepare CNF/sodium alginate (SA) composite films. By adding a certain amount of SA in the CNF film and regulating the moisture in the film, the gap between CNF was filled and the dimensional stability of the film was improved. Meanwhile, the cross-linking property of SA significantly reduced the water absorption rate of the composite film, endowing the composite film with high strength (dry strength 125 MPa), high water resistance (wet strength 33 MPa), and high light transmittance (85–90%). Scanning electron microscopy (SEM), Fourier transform infrared (FTIR), and X-ray diffraction (XRD) analyses confirmed the microstructure and interaction mechanism of CNF and SA in composite films. This method is not only simple to operate without using toxic or harmful reagents but also effective to inhibit the deformation during the drying process of CNF, which is expected to provide a feasible basis for the commercial application of CNF film.
研究领域:
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
·
2017
·
IF 3.582
Xingbao Zhu,Yuanguo Wu,Weihua Wan,Yingzhang Yan,Yu Wang,Xianglei He,Zhe Lü
In this work, we report the significant enhancement of the electrochemical performance and flexibility of a lithium–oxygen battery by introducing a free-standing, binder-free carbon nano-fibers (CNF) grafted carbon paper cathode with a bimodal pore architecture. The small pore structures (∼100 nm) accommodated Li 2 O 2 , and the large pore structures (∼10 μm) enabled effective oxygen diffusion without clogging the pores. This kind of cathode overcame some troubles of the cathode prepared by spraying coating method, such as the low utilization of substrate surface , the unreasonable aperture structure and the aggregation of active carbon material . As a result, this electrode structure imparted stability to active sites during the recovery of discharge products to the initial state, providing long-term cyclability of more than 800 cycles in a 1 M LiTFSI/TEGDME electrolyte system. In addition, the battery output a discharge capacity as high as 20000 mAh g −1 at 468 mA g −1 and exhibited a charge/discharge rate as high as 1136 mA g −1 (0.57 mA cm −2 ). The test results suggest that these CNF-grafted carbon papers have the potential to be used for oxygen/air electrodes for next-generation lithium-oxygen batteries, though the present results need to be improved to achieve performance of practical significance, namely with regard to (i) cathode mass loading to get higher areal capacity, and (ii) cycling performance at higher current density .
研究领域:
材料科学
·
能源技术
✓ 已验证
产品关联
DOI
高影响因子
Journal of Cleaner Production
·
2023
·
IF 11.1
Bingzhang Li,Yao Meng,Xiaoxia Lin,Degui Tu,Shunxi Shen,Ting He,Yuqi Li,Hui Zhang
Difficulties in mineralizing organic dyes and antibiotics have been bottlenecks limiting wastewater treatment technology development. Electrocatalytic advanced oxidation through selective two-electron oxygen reduction on cathodes is a promising method of mineralizing organic wastewater. However, most developed cathodes cannot efficiently synthesize H 2 O 2 in situ via 2e − pathways and their durability cannot be guaranteed due to Fe 2+ leaching. Therefore, the electrospun cathode (MOFs (2Fe/Co)/CNF) with both photocatalytic and electrocatalytic functions was ingeniously fabricated for efficient degradation of dyes and antibiotics through graphene template effect, carbonization and in-situ growing strategies. On the cathode surface , H 2 O 2 was continuously generated in situ via 2e − reduction reactions, activating Fenton-like reactions. In addition, the developed cathode (MOFs (2Fe/Co)/CNF) had a low band gap (1.32 eV), which enhanced visible light response and improved catalytic active sites of the cathode. Degradation experiments of methylene blue and erythromycin solution indicate that the developed cathode showed excellent synergistic photoelectrocatalysis performance. In a photo-electro-Fenton system (PEF), the mineralization rate of methylene blue and erythromycin reached 86.5% and 90.2% within 10 and 30 min, respectively. The cathode in this research is expected to have great potential to efficiently mineralize wastewater via PEF.
研究领域:
环境科学
·
材料科学
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）