JOURNAL OF POWER SOURCES
·
2022
·
IF 9.794
Sen Jiang,Xin Xu,Junying Yin,Xuequan Zhu,Lai Wei,Kang Xi,Linghao Zhang,Yuelang Lan,Haihua Wu,Yunfang Gao
Rechargeable lithium metal batteries (LMBs) coupling with Ni-rich cathodes are promising high-energy-density electrochemical energy storage devices. However, the growth of Li dendrites and structural degradation of Ni-rich materials, associated with the erratic electrode-electrolyte interphase (EEI) and corrosion of harmful acidic species from the hydrolysis of LiPF 6 , seriously deteriorate the cycling performance of LMBs with Ni-rich cathodes. Herein, glutaric anhydride (GA) as a multifunctional electrolyte additive is proposed to achieve satisfactory lifespan of LMBs by in situ constructing LiNi 0.8 Co 0.1 Mn 0.1 O 2 (NCM811) cathode/Li anode-electrolyte interphases (CEI/AEI), and scavenging corrosive acidic species. The GA-derived CEI/AEI layers are rich in C O species, which can strongly coordinate with the Li anode and delithiated Ni-rich cathode surface . Thus, parasitic reactions of the electrolyte on the aggressive surface of the Ni-rich cathode and Li anode are notably reduced. Furthermore, the problems such as the inner microcrack evolution of NCM811 particles, the growth of Li dendrites and the corrosion of acidic species are well addressed. Consequently, the capacity retention of Li/NCM811 cell is increased from 59.4% to 90.7% after 300 cycles at 1C in the presence of GA, and the Li/Li symmetrical cell with GA exhibits the super-stable cyclic performance of 1400 h at 0.2 mA cm −2 .
研究领域:
材料科学
·
电化学能源存储
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产品关联
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2024
·
IF 9.4
Qiang Wang,Qian Wang,Xinming Fan,Chaofan Tang,Lu Zhou,Shan Liu,Hui Tang,Runjin Liu,Linka Zhu,Lei Zhang,Qinghua Tian,Xueyi Guo
In recent years, there has been notable advancement in the development of high-performance materials for sodium-ion batteries, particularly in layered oxide cathodes. However, research on enhancing the interface between electrolytes and cathodes remains nascent. One promising approach involves the addition of electrolyte additives, recognized for their cost-effectiveness and efficiency in bolstering the electrode/electrolyte interface to enhance material stability during high-voltage cycling. In this work, we investigate the use of glutaric anhydride (GA) as an electrolyte additive to improve the cycling stability of NaNi 1/3 F 1/3 M 1/3 O 2 /Na (NFM/Na) high-voltage sodium-metal batteries. Batteries using GA-containing electrolytes demonstrate impressive capacity retention: 80.51 % after 200 cycles at 4.0 V and 76.01 % after 150 cycles at 4.1 V. The research delves into the mechanistic insights behind GA’s effectiveness in enhancing cyclic stability. Theoretical calculations reveal that GA plays a crucial role in modifying the structure of the first solvation shells, promoting the formation of an elastic cathode-electrolyte interface (CEI) film enriched with O C O groups. This uniform and stable CEI film effectively preserves the material’s crystal structure and mitigates the dissolution of transition metals, thereby prolonging battery lifespan under demanding extremely cycling conditions.
研究领域:
材料科学
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电化学
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产品关联
DOI
PubMed
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2024
·
IF 2.7
Shujun Zhao,Jiehao Qu,Shengjiong Yin,Xiangdong Liu,Hu Zhu
Constructing self-repairing epoxy materials based on transesterification chemistry can be regarded as a potential path for practical industrial applications given on its simplicity and ease of processing. However, there is still a challenge to improve the slow bonding exchange process for desired healing performances. Herein, this work reports a simple and effective strategy to prepare high-biomass-content self-repairing epoxy materials by introducing polyester oligomer (PEO) dicarboxylic acid as modifier into epoxidized soybean oil and itaconic acid compounds. The PEO is synthesized from glutaric anhydride and 1,4-cyclohexanediol, as well possess a unique pentamer molecular structure. It not only endows the epoxy system with improved molecular mobility in virtue of its long-chain structure, but also increases the number the essential ester groups of transesterification process, thus synergistically promoting bonding exchange rate for expected properties. As a result, the employment of PEO decreases the activation energy from 100 to 70 KJ/mol, as well as presents optimized self-repairing efficiency in storage modulus and tensile strength tests compared to the control group. It may provide a new and practical way to fabricate high-effective self-repairing epoxy system for industrial applications.
研究领域:
材料科学
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聚合物化学
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自愈材料
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环氧树脂
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可持续材料
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产品关联
DOI
高影响因子
Polymers
·
2025
·Vol. 17
·期 14
·1991
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IF 4.9
Xiaojuan Shi,Hui Zhang,Hongjiu Hu
Traditional covalently cross-linked solid-state electrolytes exhibit desirable mechanical durability but suffer from limited processability and recyclability due to their permanent network structures. Incorporating dynamic covalent bonds offers a promising solution to these challenges. In this study, we report a reprocessable and recyclable polymer electrolyte based on a dynamic ester bond network, synthesized from commercially available materials. Polyethylene glycol diglycidyl ether (PEGDE) and glutaric anhydride (GA) were cross-linked and cured in the presence of benzyl dimethylamine (BDMA), forming an ester-rich polymer backbone. Subsequently, 1,5,7-triazabicyclo[4.4.0]dec-5-ene (TBD) was introduced as a transesterification catalyst to facilitate network rearrangement. Lithium bis(trifluoromethanesulfonyl)imide (LiTFSI) was incorporated to establish efficient ion transport pathways. By tuning the cross-linking density and catalyst ratio, the electrolyte achieved an ionic conductivity of 1.89 × 10−5S/cm at room temperature along with excellent reprocessability.
研究领域:
材料科学
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高分子化学
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储能技术
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固态电解质
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可持续材料
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产品关联
DOI
PubMed
高影响因子
ANALYST
·
2023
·Vol. 148
·期 5
·1024-1031
·
IF 4.2
Xueyi Zhu,Ning Ma,Yizhen Wan,Lu Wang,Yu Zhang,Chengyu Yan,Weiping Qian
Immobilizing ligands is a crucial part of preparing optical sensors and directly connected to the sensitivity, stability, and other characteristics of sensors. In this work, an ordered porous layer interferometry (OPLI) system that can monitor the covalent coupling process of ligands in real time was developed. Films of silica colloidal crystal (SCC), as optical interference substrates, were surface modified by three different reagents: chloroacetic acid, glutaric anhydride, and carboxymethyl dextran. Staphylococcus aureus protein A (SPA), the ligand, was immobilized on SCC films. The covalent coupling process of SPA and SCC films can be dynamically monitored by the OPLI system. In addition, the three different strategies were evaluated by comparing the efficiency of the sensors prepared by different methods for binding Immunoglobulin G (IgG). The glutaric anhydride-modified sensor offers apparent advantages in terms of bound IgG quantity and affinity. This system provides a simple and intuitive way to determine the efficiency of different covalent coupling strategies. Furthermore, the sensor covalently coupled with SPA also excels in the determination of IgG content in complex systems such as milk. At the same time, the covalent coupling gives the sensor the ability to be stored stably over time.
研究领域:
材料科学
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分析化学
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光学传感
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表面化学
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产品关联
DOI
PubMed
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2024
·Vol. 141
·期 42
·e56101
·
IF 2.7
Zhengping Chang,Yazhi Gao,Kanghe Yan,Zhongqi Wang,Menglin Zhao,Yang Zhao
The resin is a fundamental factor in determining the performance and usage conditions of its composites. The epoxy vitrimer, which combines both thermoplastic and thermosetting properties, shows significant potential in extending the service life of material. The curing process significantly affects the macroscopic properties of the vitrimer and the resulting carbon fiber reinforced plastics (CFRP). Effective control of curing parameters constitutes the critical factor for the assurance of product quality. In the study, a differential scanning calorimetry (DSC) was utilized to establish a curing kinetics model for a modified, self-healable epoxy vitrimer based on transesterification. Then the molecular structure, thermodynamic, and mechanical properties of the cured vitrimer were analyzed. Next vitrimeric CFRP (vCFRP) laminates were fabricated, and the tensile and bending properties of the vCFRP laminates were investigated. The results showed the curing process was obtained: 95°C/1 h + 150°C/2 h + 170°C/2 h. The thermodynamic and mechanical properties of cured vitrimer could meet practical requirements. The minimal differences observed in the stress–strain curves of the specimens indicated that the curing process was appropriately configured. The prepared laminates exhibited performance comparable to that of commercial thermosetting composites.
研究领域:
材料科学
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化学工程
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产品关联
DOI
高影响因子
POLYMER DEGRADATION AND STABILITY
·
2025
·
IF 7.4
Daquan Wang,Zuoliang Zhang,Xin Xu,Yao Qiu,Gang Chang,Kaiyun Yuan,Ruqing Xu,Lingjie Meng
The widespread application of epoxy resins in thermosetting materials is limited by inadequate flame retardancy and recyclability. This study reports the synthesis of a bio-based, hexafunctional star-shaped epoxy cyclotriphosphazene (NEP) via nucleophilic substitution and oxidation of hexachlorocyclotriphosphazene and eugenol. An intrinsically flame-retardant epoxy vitrimer (EV/NEP) was subsequently prepared, exhibiting superior mechanical properties, heat resistance, and thermal stability. Incorporation of 9 mol % NEP significantly enhanced flame retardancy, increasing the limiting oxygen index (LOI) to 26.2 % while reducing peak heat release rate (PHRR) and total smoke release (TSR) by 24.9 % and 35.4 %, respectively. Flame retardancy mechanisms were elucidated in both solid and gas phases. Recyclability was confirmed through solvent recovery and thermal compression experiments. Dynamic ester bonds conferred excellent shape memory properties to EV/NEP. The combination of flame retardancy and recyclability makes this epoxy vitrimer a promising candidate for aerospace and automotive applications.
研究领域:
材料科学
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化学工程
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产品关联
DOI
高影响因子
Defence Technology
·
2025
·
IF 5.9
Yiting Meng,Heyu Chen,Hengyu Lin,Zhehong Lu,Yubing Hu,Yanan Zhang
Inspired by the thermal stability mechanism of thermophilic protein, which presents ionic bonds that have better stability at higher temperatures, this paper proposes the introduction of electrostatic interactions by adding carboxyl-modified silica (C-SiO 2 ), PAA, and CaCl 2 to achieve higher viscosity over 25 °C. The rheological behavior of C-SiO 2 -based shear thickening fluid (CS-STF) was investigated at a temperature range of 25–55 °C. Unlike SiO 2 -based STF, which exhibits single-step thickening and a negative correlation between viscosity and temperature. As the C-SiO 2 content was 41% (w/w) and the mass ratio of PAA:CaCl 2 :C-SiO 2 was 3:1:10, the CS-STF displayed a double-thickening behavior, and the peak viscosity reached 1330 Pa·s at 35 °C. From the yarn pull-out test, the inter-yarn force was significantly increased with the increasing CS-STF content. Treating UHMWPE fabrics with CS-STF improved the impact resistance effectively. In the blunt impact test, the U-CS fabrics with high CS-STF content (121.45 wt%) experienced penetration failure under high impact energy (18 J) due to stress concentration caused by the shear thickening behavior. The knife stabbing test demonstrated that U-CS fabrics with appropriate content (88.38 wt%) have the best stabbing resistance in various impact energies. Overall, this study proposed a high-performence STF showing double-thickening and enhancing shear-thickening behavior at a wide temperature range, the composite fabrics with the performance of resisting both the blunt and stab impact had broad application prospects in the field of personal protection.
研究领域:
材料科学
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力学
·
防护工程
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产品关联
DOI
高影响因子
THIN-WALLED STRUCTURES
·
2024
·
IF 5.7
Yang Zhao,Zhongqi Wang,Menglin Zhao,Peng Jiang,Anyang Wang,Zhengping Chang
Epoxy vitrimer theoretically achieves an unlimited healing cycle drawing support from dynamic molecular chains. The healing conditions required for microvascular systems are variable and flexible. Current research has often focused on a single healing system, further exploration is needed for a dual healing system that combines the advantages of both. In this study, the effects of curing agent and catalyst content on the performances of vitrimer, as well as the healing parameters on the healing efficiency were studied. And then the vitrimeric CFRP (vCFRP) laminates with microchannels were prepared, and the three-point bending tests were implemented to characterize the healing efficiency of CFRP with a single and dual healing system. The results indicated that the cured vitrimer exhibited the best comprehensive performance when the molar ratio of reactants was 1:1:0.07. The healing temperature had the greatest impact on the healing efficiency of vitrimer, followed by the catalyst content and the healing pressure. The two healing systems could improve the mechanical properties of laminates, especially the healing efficiency of CFRP with dual healing system reached 134.5 %. The healing agent in the microchannels could heal micro-damage, and the healability of the vitrimer could still be utilized after the healing agent was exhausted.
研究领域:
材料科学
·
化学工程
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产品关联
DOI
高影响因子
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
·
2024
·
IF 8.1
Yang Zhao,Menglin Zhao,Siyuan Wang,Anyang Wang,Zhengping Chang,Zhongqi Wang
With the extensive research on ester-exchanged vitrimer, laminates utilizing vitrimer as matrix have garnered increasing attention due to their healability for achieving long-term durability of the composite structure. However, current research on the healing of mode II delamination for vitrimeric CFRP (vCFRP) laminates remains notably limited. In this study, the ENF tests were implemented to acquire load–displacement curves of eight typical vCFRP laminates with various interfaces. The results indicated a pronounced impact of the stacking interface on the fracture toughness values, the R -curves, fiber bridging effect, and crack growth behaviours . The continuous 0 ° fiber hindered the upward migration for the laminates with 0 ° / / θ ° interface, while the discontinuous θ 1 ° fabric had a lower in-plane strength and were more prone to cracking for the laminates with θ 1 ° / / θ 2 ° interface. Subsequently, the healing efficiencies of specimens were characterized. The healed laminates undergone three shear delamination damages could still achieve a substantial recovery of about 76.33 %.
研究领域:
材料科学
·
复合材料工程
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产品关联
DOI
高影响因子
Journal of Cleaner Production
·
2025
·
IF 10
Tian-Mo Yang,Hao-Xin Niu,Wen-Jie Zheng,Hao-Ran Jiang,Yuan Hu,Xin Wang
To address the depletion of petroleum resources and the challenge of recycling epoxy resin, the development of green and recyclable bio-based alternatives to bisphenol A-type epoxy resins is urgently needed. In this study, a furan-derived epoxy monomer (diglycidyl furfurylamine, DGFA) was synthesized from furfurylamine, and a flame-retardant curing agent (9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide-maleic anhydride adduct, DOPO-MA) containing ester bonds was prepared via the addition of DOPO and maleic anhydride. Furan-derived epoxy vitrimers based on transesterification were fabricated by curing DGFA with a proportional mixture of DOPO-MA and glutaric anhydride. Compared with the neat vitrimer (DGFA-D 0 G 1 ), the flame-retardant composites (DGFA-D 1 G 1 , DGFA-D 1 G 1.5 , DGFA-D 1 G 2 ) all achieved a UL-94 V-0 rating, with the limiting oxygen index (LOI) increasing from 23.0 % to 32.0 %, 30.0 %, and 29.0 %, respectively. The peak heat release rate (PHRR) and total heat release (THR) were reduced by up to 48.6 % and 56.4 %, respectively. With the incorporation of DOPO-MA, the glass transition temperature (Tg) and rigidity of the flame-retardant vitrimers significantly increased. Notably, these composites exhibited excellent solvent resistance, even under strongly acidic conditions, and their degradation rate could be tailored by adjusting the temperature and mixed solution ratio to achieve on-demand removal. The DGFA-D 1 G 2 sample demonstrated superior self-healing and recyclability: surface scratches were almost completely healed after heating at 150 °C for 25 min, and the tensile strength of the recycled sample retained 77.8 % of the original value, indicating well-preserved mechanical properties.
研究领域:
高分子材料科学
·
绿色化学
·
阻燃材料
·
可持续材料
·
自修复材料
✓ 已验证
产品关联
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2024
·
IF 4.9
Zhou Sha,Xiaochun Gao,Yijie Wang,Xiaotian Guan,Sihao Zhang,Jingru Zhao,Chunnan Wang,Shuqing Sun
Magnetic-fluorescent microbeads had been extensively used in various applications, particularly in the multiple detection of biological molecules. Currently, most commercially available magnetic-fluorescent microbeads had simple structures and the fluorescence intensity was inversely proportional to the concentration of magnetic particles, which affected performances of microbeads. In this work, a three-dimensional capillary microfluidic system was constructed to produce magnetic-fluorescent core-shell microbeads. Magnetic nanoparticles were dispersed in the core of the microbeads, while the shell consisted of quantum dots (QDs). Core-shell structures restricted fluorescence quenching caused by magnetic nanoparticles in the core area. Moreover, the number of cores could be adjusted precisely, which provided an additional encoding method besides the traditional fluorescence encoding. Three types of dual-encoded core-shell microbeads which exhibited excellent uniformity and fluorescence characteristics with additional magnetic response properties were produced. The self-assembly of silica nanoparticles on the surface of microbeads made the introduction of carboxyl groups easy. Furthermore, the capability of these microbeads for multiplex immunoassays was demonstrated using three types of IgG, and a calibration curve for the detection of human IgG was established using a sandwich immunoassay. These results indicated the potential application of this scheme in the field of biomedical detection.
研究领域:
生物技术
·
纳米技术
·
分析化学
·
生物材料科学
·
免疫测定技术
✓ 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）