DALTON TRANSACTIONS
·
2019
·Vol. 48
·期 20
·6846-6852
·
IF 4.052
Chenle Zhang,Jingbo Yang,Hongwei Mi,Yongliang Li,Peixin Zhang,Han Zhang
Silicon (Si) is an attractive anode material for lithium-ion batteries due to its high gravimetric and volumetric capacity. However, the challenges for Si anodes are low conductivity, unstable solid electrolyte interphase (SEI) layer and big volume expansion during the charge/discharge process. Inspired by the structure of carob, we propose a yolk–shell structured Si anode which tackles all the problems mentioned above. The non-filling Si clusters protected by atomic layer-deposited TiO2 are embedded in highly conductive one-dimensional carbon nanofibers, which leaves enough space for the expansion and contraction of Si during lithiation/delithiation. Moreover, the SEI layer will form at the outer surface of carbon nanofibers instead of on individual Si nanoparticles and can remain stable and spatially confined. Therefore, the yolk–shell composite electrode exhibits good electrochemical performance and reversible capacities of 1156 mA h g−1 at a current density of 600 mA g−1 after 500 cycles and 485 mA h g−1 at the current density of 9600 mA g−1 after 2000 cycles are obtained.
研究领域:
材料科学
·
能源存储
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ENERGY CONVERSION AND MANAGEMENT
·
2023
·
IF 10.4
Yinan Li,Jun Wang,Chenglong Fu,Liulian Huang,Lihui Chen,Yonghao Ni,Qinghong Zheng
Green cellulose- based solar light capturing composite films made of carbon nanotubes (CNT) and cellulose nanofibrils (CNF), with high photothermal conversion performance, were designed and developed. Thanks to the strong electrostatic interactions between carboxyl- rich CNFs (obtained from 2, 2, 6, 6-tetramethylpiperidine-1-oxyl (TEMPO) mediated oxidation), and cationic-modified CNTs using cetyltrimethylammonium bromide, the resultant CNT/CNF composite (FTC) films are uniform and exhibit excellent mechanical properties. More importantly, the effect of CNT/CNF ratio in the FTC films on their photothermal conversion capacity and coefficient of thermal expansion (CTE) was investigated. The FTC film with 50 % CNT incorporation shows both high photothermal conversion capacity and high negative CTE, and its application for solar energy harvesting was explored, including seawater desalination, photothermal power generation and light- driven actuators. The FTC film exhibits high light-induced desalination capability, with water evaporation rate reaching 1.23 Kg m -2 h - 1 at an irradiance of 1 kW m - 2 (evaporation efficiency of 84.5 %) and ion concentrations in purified water decreasing by 4 orders of magnitude. The FTC film can also be assembled into photothermal power system, achieving an output voltage of 310 mV at an irradiance of 3 kW m - 2 . With the assistance of a boost module, it can be used to re-charge a cell phone. A light-driven FTC/polytetrafluoroethylene (PTFE) double- layered actuator was also designed. Benefiting from the negative CTE of the FTC film, the actuator has a high sensitivity and achieves a bending curvature of 3.3 cm - 1 at an irradiance of 0.74 kW m - 2 . This study presents a scalable, yet simple strategy to design green/sustainable cellulose- based solar energy harvesting devices that can have multiple applications.
研究领域:
材料科学
·
纳米技术
·
能源工程
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION
·
2020
·
IF 2.69
Zhixiang Cui,Jixin Lin,Conghua Zhan,Jiahui Wu,Shuai Shen,Junhui Si,Qianting Wang
To improve the interaction between cells and scaffolds, the appropriate surface chemical property is very important for tissue engineering scaffolds. In this study, the thermoplastic polyurethane (TPU) nanofibers was firstly fabricated by electrospinning technique, and then its surface was modified with cellulose nanofibrils (CNF) particles by ultrasonic-assisted to obtain TPU/CNF nanofibers. Subsequently, the TPU/CNF-polydopamine (PDA) composite nanofibers with core/shell structure were fabricated by PDA coating method. In comparison with TPU nanofibers, the uniformization of PDA coating layer on the surface of TPU/CNF composite nanofibers significantly increased due to the addition of CNF, which used as the active sites to guide the PDA particles accumulated along with the fiber direction. The water absorption and hydrophilicity of TPU/CNF-PDA composite nanofibers were significantly increased in comparison with those of TPU and TPU/CNF nanofibers. The mechanical properties of the TPU/CNF-PDA composite nanofibers were higher than those of the TPU and TPU/CNF nanofibers due to the formation of strong hydrogen bonds between PDA and TPU/CNF, making TPU, CNF and PDA strongly adhere to each other. The attachment and viability of mouse embryonic osteoblasts cells (MC3T3-E1) cultured on TPU/CNF-PDA composite nanofibers were obviously enhanced compared with TPU and TPU/CNF nanofibers. Those results suggested that the modified TPU/CNF-PDA composite nanofibers have excellent mechanical and biological properties, which promoting them potentially useful for tissue engineering scaffolds. The presented strategy represents a general route to modify the surface of scaffolds, which are promising for tissue engineering applications.
研究领域:
生物材料学
·
组织工程学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2025
·
IF 8.5
Dongsheng Song,Congcong An,Zhe Zhang,Yu Qiu,Zhimin Zhao,Dingqiang Zheng,Ming Zhang
A superhydrophobic CNF/PDA composite membrane has been developed to revolutionize oily wastewater treatment for achieving high efficiency, cost-effectiveness, and environmental sustainability. Inspired by the adhesive properties of mussels and the self-cleaning mechanism of lotus leaves, this innovative material is fabricated through a novel lyophilization and spray modification process using cellulose nanofibers (CNF), dopamine hydrochloride (DA), and octadecylamine (ODA). The membrane is synthesized via an aerobic, weakly alkaline self-polymerization process, which facilitates the formation of robust covalent and non-covalent bonds between the catecholamine structure of DA and CNF. ODA is integrated through hydrogen bonding and Schiff base reactions with polydopamine (PDA), enhancing structural stability. The resulting membrane demonstrates a tensile strength of 2.9 MPa, alongside exceptional separation efficiency (98.5 %) and flux rates (3745 L·m −2 ·h −1 ). Even after five consecutive water-in-oil (W/O) emulsion separation cycles, a separation efficiency exceeding 91.8 % is maintained, with hydrophobicity and structural integrity preserved. Durability tests confirm its robustness, with 98.5 % of initial capacity retained after ten adsorption-desorption cycles. The membrane's porous architecture and photothermal brown-black hue synergistically boost light-to-heat conversion, facilitating swift thermal response and efficient high-viscosity oil uptake. This demonstrates viable applications as a sustainable solution for oily wastewater treatment, promoting greener industrial application.
研究领域:
环境科学
·
材料工程
·
化学工程
·
绿色技术
·
纳米技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
LWT-FOOD SCIENCE AND TECHNOLOGY
·
2025
·
IF 6.6
Fang Fang,Zijing Tian,Zhaoyizhu Guan,Yongjian Cai,Lihua Huang,Paul Van der Meeren
In this study, the effect of cellulose nanofiber (CNF)-epigallocatechin gallate (EGCG) complexes on the stability of emulsions was examined through analysis of their microstructure and rheological behavior as a function of the CNF- EGCG complex concentration ( w , 0.6–1.4 %, w/v) and oil phase volume fraction ( φ , 0.2–0.8, v/v). Emulsions with smaller droplet sizes were prepared by increasing the concentration of particles or the suitable oil phase ( φ = 0.6). Microstructural analysis showed that the CNF-EGCG complexes stabilized the oil-water interface, while excess complexes formed a network structure in the continuous phase. Rheological analysis demonstrated that increasing either the oil phase volume fraction or the particle concentration enhanced the gel strength of the emulsion, thereby reducing oxygen-oil contact and droplet aggregation, ultimately improving the oxidative and physical stability of the emulsions. The structural disintegration of the emulsions was analysed by cross-strain (γ co ) determination. As the oil content increased, γ co remained unaffected by the CNF concentration. In conclusion, our results showed that the properties of CNF-EGCG stabilized emulsions can be regulated by controlling the CNF concentration and oil phase volume fraction, offering important insights for the introduction of innovative new food products.
研究领域:
食品科学
·
材料科学
·
生物化学
✓ 已验证
产品关联
DOI
高影响因子
CARBOHYDRATE POLYMERS
·
2021
·
IF 9.381
Wei Zhou,Zhengguo Wu,Fengwei Xie,Shuwei Tang,Jiawei Fang,Xiaoying Wang
Food packaging systems with a single function of freshness keeping or monitoring may not be able to meet all practical needs. Herein, cellulose nanofibers (CNF)-based labels with dual functions of fruit freshness keeping and visual monitoring were prepared by coaxial 3D printing . CNF-based ink with blueberry anthocyanin was used to create the shell of fibers, exhibiting high formability and print fidelity as well as sensitive visual pH-responsiveness for freshness monitoring. Chitosan containing 1-methylcyclopropene (1-MCP) was loaded into the hollow microchannels of fibers, in which 1-MCP was trapped by the electrostatic effect of chitosan and CNF and exhibited a sustained release behavior. The 3D printed labels prolonged the shelf life of litchis for 6 days, meanwhile, they sensitively indicated the changes in freshness and the accuracy was confirmed by Headspace-Gas Chromatography-Ion Mobility Spectrometry. The CNF-based integrated labels developed in this work provided a new idea for the development of food intelligent packaging.
研究领域:
食品科学
·
材料科学
·
生物技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
INDUSTRIAL CROPS AND PRODUCTS
·
2022
·
IF 6.449
Peiyi Li,Hezhen Liu,Miaomiao Zhou,Haozhe Lei,Boxing Jian,Ruiyan Liu,Xinping Li,Yun Wang,Bingyao Zhou
At present, people are paying more and more attention to the development of sustainable biological materials. In this study, green magnetic hydrogel was prepared by blending Soybean residue cellulose nanofibrils (CNF)，poly (vinyl alcohol), diatomite and nano-Fe 3 O 4 for Cu 2+ removal. Results showed that the decrease of CNF diameter improved the mechanical property and swelling of the magnetic CNF hydrogel (the maximum tensile strength was 2.3Mpa) for better Cu 2+ adsorption. Adsorption studies displayed that the adsorption of Cu 2+ followed the pseudo-second-order kinetic model, and the adsorption process is mainly chemical adsorption. This work provided a feasible method to fabricate magnetic hydrogel from green renewable resource as a new and promising adsorbent.
研究领域:
环境科学
·
材料科学
·
可持续发展
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2024
·Vol. 141
·期 35
·e55889
·
IF 2.7
Xiaohong Wang,Bin Yang,Yue Zhang,Yuqing Yang,Huijie Lu,Hao Wang,Ziyi Wang,Jiasheng Qian,Ru Xia,Ning Jia,Yuchao Ke
Phase-change materials (PCMs) have become a hot spot in the development of modern thermal management materials because of their absorbing and releasing heat while keeping the temperature constant during phase change process. However, their relatively low thermal conductivity (TC) considerably restricts their further application. In this work, graphene nanosheets (GNS) were initially nickel-plated to increase the contact area between adjacent GNS (in the form of Ni@GNS) by constructing a “point-surface” structure. Then, the prepared Ni@GNS was coated with polydopamine (PDA) to prepare PDA-Ni@GNS, which helped to effectively reduce the interface thermal resistance (ITR) between the filler and the matrix, and also made the prepared filler more easily dispersed in the polymer matrix. By constructing well-defined three-dimensional (3D) thermally conductive pathways in the matrix, the PCMs exhibited excellent TC and effectively prevented the leakage of polyethylene glycol (PEG) even at low filler loading. The results of thermogravimetry (TG), differential scanning calorimeter (DSC), and cyclic DSC tests jointly showed that the PDA-Ni@GNS/CNF-C/SA/PEG PCMs displayed excellent thermal storage properties, high latent heat as well as good cyclic thermal stability. The present study provides a facile way of preparing PEG-based PCMs, which are applicable in thermal management area.
研究领域:
材料科学
·
热能工程
✓ 已验证
DOI
高影响因子
Journal of Energy Storage
·
2024
·
IF 8.9
Zhaoxia Cao,Jiarou Wu,Xiaofeng Ma,Yujie Jiao,Xiangnan Li,Yuantao Cui,Mingguo Yang,Yanhong Yin,Shuting Yang
Rational designing of advanced free-standing consisting of carbon nanofibers (CNFs) based carbonaceous materials and electrochemically active materials, is a promising strategy for developing flexible energy storage and conversion systems. Here, we propose a controllable architectural design of flexible multilevel ZnSe-CoFe@CNT/CNF heterostructure via a one-pot electrospinning and carbonization strategy. Uniformly dispersed ZnSe nanoparticles are inlaid in N-doped CNF skeleton with CoFe alloy embedded at the tips of the in-situ grown dendritic CNTs to form the hierarchical network. Interestingly, the hybrid can be tailored based on the synergistic catalysis effect of CoFe and its cocatalyst, and the formation mechanics is also proposed. Thanks to rich N doping, dense CNT branches, multiple heterogeneous interfaces, and bountiful space accommodating volume expansion of active ZnSe, the delicate architecture can afford efficient electron/ion transport with significantly improved mechanical properties and conductivity. As a proof-of-concept of a free-standing electrode material, the ZnSe-CoFe@CNT/CNF hybrid was utilized in representative Lithium-ion batteries (LIBs) and Sodium-ion batteries (SIBs). As anticipated, the two types of batteries show excellent cycle stability and rate performance. At 5 A/g，the electrode can achieve a high specific capacity of 813.5 mAh/g in LIBs. For SIBs, a specific capacity of 250.5 mAh/g is provided after 1000 cycles at 4 A/g. Accordingly, this work provides a new perspective for rational fabrication and design of free-standing electrodes for advanced LIBs/SIBs and beyond.
研究领域:
材料科学
·
能源存储与转换
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2022
·
IF 10.383
Qi Zeng,Shuhao Tian,Guo Liu,Hongcen Yang,Xiao Sun,Di Wang,Juanjuan Huang,De Yan,Shanglong Peng
Manganese sulfide (MnS) has been found to be a suitable electrode material for lithium-ion batteries (LIBs) owing to its considerable theoretical capacity, high electrochemical activity, and low discharge voltage platform, while its poor electrical conductivity and severe pulverization caused by volume expansion of the material limit its practical application. To improve the rate performance and cycle stability of MnS in LIBs, the structure-control strategy has been used to design and fabricate new anode materials. Herein, the MnS@MXene@CNF (MMC, CNFs means carbon nanofibers) electrode has been prepared by electrospinning and a subsequent high-temperature annealing process. The MMC electrode exhibits excellent cyclic stability with a capacity retention rate close to 100% after 1000 cycles at 1000 mA/g and an improved rate performance with a specific capacity up to 500 mAh/g at a high current density of 5000 mA/g, much higher than the 308 mAh/g of the MnS@CNF (MC) electrode. The elevated electrochemical performance of the MMC electrode not only benefits from the unique structure of MnS nanoparticles evenly dispersed in the well-designed flexible self-supporting three-dimensional (3D) CNF network but, more importantly, also benefits from the formation of sulfur-bridged Mn–S–C bonds at the MnS/MXene interface. The newly formed bonds between MnS and MXene nanosheets can stabilize the structure of MnS near the interfaces and provide a channel for fast charge transfer, which notably increase both the reversibility and the rate of the conversion reaction during the charge/discharge process. This work may pave a new path for designing stable and self-supporting anodes for high-performance LIBs.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2019
·
IF 8.355
Liuting Mo,Huiwen Pang,Yi Tan,Shifeng Zhang,Jianzhang Li
The utilization of easily recyclable biosorbent material with ultrahigh adsorption capacity for the removal of heavy metal ions from aqueous environments is an important step towards eradicating water pollution worldwide. In this study, a novel amino-functionalized nanocellulose aerogel adsorbent for efficient and reversible recycle capture of Cu(II) ions was fabricated via self-assembly of 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO) oxidized cellulose nanofibril (TO-CNF) crosslinked Trimethylolpropane-tris-(2-methyl-1-aziridine) propionate (TMPTAP) and polyethyleneimine (PEI). The TO-CNF was spontaneously reacted with TMPTAP via a ring-opening reaction in an aqueous solution at room temperature and then cross-linked with PEI. The resultant TO-CNF/TMPTAP/PEI aerogel showed a 3D multi-wall perforated cellular structure with plentiful amino groups and oxygen-containing groups. The unique architecture of the TO-CNF/TMPTAP/PEI aerogel allowed an ultrahigh Cu(II) ion adsorption capacity of 485.44 mg/g as-calculated by the Langmuir isotherm model, which is almost the highest value among known biodegradable cellulose-based adsorbents. The TO-CNF/TMPTAP/PEI aerogels also can restore their original architecture after regeneration by EDTA-2Na treatment and be utilized more than four cycles without significant degradation of adsorption performance. The ultrahigh adsorption capacity, good recyclability and reversibility, excellent chemical and structural stability, and ease of separation make these composite aerogels ideal materials for the adsorption of Cu(II) ions in practical wastewater treatment applications.
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
ADVANCED FUNCTIONAL MATERIALS
·
2024
·
IF 18.5
Qingtao Zhu,Xianfen Chen,Duoduo Li,Lei Xiao,Junyan Chen,Lijun Zhou,Jiabin Chen,Quanping Yuan
Cellulose-based piezoelectric composites have attracted extensive attention in recent years due to their low cost, easy molding, high flexibility, and biocompatibility in the manufacture of piezoelectric nanogenerators (PENG) and sensors. In this work, cellulose nanofibril (CNF)/MXene@ZnO (CM@ZnO) piezoelectric composite films with “brick-rebar-mortar” structure are prepared by growing ZnO on the mixed substrate via a high-efficiency two-step hydrothermal method. As a hard bridge, ZnO welds CNF and MXene together to construct the “brick-rebar-mortar” structure, which greatly improves the piezoelectric performance. Its tensile strength reaches 65.13 ± 3.61 MPa, as well as that the longitudinal piezoelectric constant ( d 33 ) attains 14.3 ± 1.3 pC N −1 . Under the force of 300 KPa, the open-circuit voltage ( V OC ) and short-circuit current ( I SC ) of CM@ZnO PENG are as high as 17.15 V and 997 nA, respectively. Under the force of 100 KPa, it can charge a 1.0 µF commercial capacitor to 6.07 V in 400 s. The assembled flexible piezoelectric sensor can accurately collect the pressure or vibration signal caused by bending the wrist (0.59 V) with excellent sensitivity. The performance demonstrates the feasibility of its application in wearable smart devices and provides a reference for new cellulose-based PENGs.
研究领域:
材料科学
·
能源技术
·
生物医学工程
✓ 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）