ACS Applied Materials & Interfaces
·
2021
·
IF 9.229
Yan Liu,Lei Hou,Yucong Jiao,Peiyi Wu
Quasi-solid state electrolyte is one of the promising options for next generation batteries due to its superiority on safety and electrochemistry performance. However, the trade-off between the electrolyte swelling ratio and mechanical property of the quasi-solid state electrolyte significantly influences the battery performance. Herein, we design a nonswelling, solvent-adaptive polymer gel composed of oleophobic zwitterion poly(3-(1-vinyl-3-imidazolio)-propanesulfonate) and oleophilic elastomer poly(2-methoxyethyl acrylate) segments to retain high battery performance without sacrificing the mechanical property in lithium batteries. The as-designed gel can not only uptake enough electrolyte for a high ionic conductivity of 1.78 mS cm–1 but also achieve excellent mechanical strength with compression stress at 90% strain (σ0.9) reaching 5.8 MPa after long time soaking for battery safety due to its nonswelling property in ester electrolyte. Moreover, the as-prepared zwitterionic gel is beneficial to electrolyte salt dissociation, which further enhances the ionic conductivity and transference number of batteries. Consequently, the gel electrolyte can cycle for more than 500 h under a high current density of 3 mA cm–2 on dendrite inhibition performance, and when assembled with LiFePO4 as a cathode, the battery demonstrates a reversible specific capacity as high as 70 mAh g–1 under a high current density of 5 C after 300 cycles. The rational designed solvophilic/solvophobic zwitterionic elastomers provide a guidance for engineering quasi-solid state electrolytes of different solvents with broad applications on flexible devices.
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
Food Analytical Methods
·
2018
·Vol. 11
·期 6
·1677-1689
·
IF 2.245
Liu Ye,He Congcong,Song HuanLu
The aim of the study was to compare the extraction efficiency of headspace and solvent extraction methods on watermelon juice flavor. Solid-phase microextraction (SPME) and solvent-assisted flavor evaporation (SAFE) techniques were employed to extract the volatiles from watermelon juice. Aroma compounds were separated and analyzed through gas chromatography-olfactometry-mass spectrometry (GC-MS/O) equipped with DB-5 and DB-Wax capillary columns. Forty-seven compounds were identified by SPME (30) and SAFE (28). These compounds included 7 aldehydes, 10 olefinic aldehydes, 14 alcohols, 7 sulfur compounds, 5 ketones, and 4 miscellaneous compounds. SPME extracted the saturated aldehydes, olefinic aldehydes, alcohols, and ketones effectively, whereas SAFE exerted better efficiency to extract sulfur compounds. ( Z,Z )-3,6-Nonadienal, ( Z )-6-nonen-1-ol, ( E )-2-hexenal, ( E )-2-nonenal, hexanal, nonanal, ( Z )-3-nonen-1-ol, and ( E )-2-octenal were identified as the key aroma compounds through odor activity value (OAV) and aroma extract dilution analysis (AEDA). Also, the aroma compounds can be extracted comprehensively by the combination of both SPME and SAFE techniques.
研究领域:
食品科学
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分析化学
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DOI
高影响因子
RSC Advances
·
2013
·Vol. 3
·期 44
·22120-22129
·
IF 2.562
Ai He,Bei Lei,Chong (Sage) Cheng,Shuang Li,Lang Ma,Shudong Sun,Changsheng Zhao
In the present study, safe, efficient and multifunctional 3D GO based polymeric gels were prepared by the promotion of different biopolymer agents. The obtained freeze-dried 3D gels have a well-defined and interconnected 3D porous network, which allows the adsorbate molecules to diffuse easily into the adsorbent. AFM images confirmed that the biopolymers had been successfully adsorbed onto the GO nanosheets through noncovalent interactions with apparently increased thicknesses. In this proposed biologically 3D noncovalent assembly, the use of biopolymers, such as proteins, DNA, and chitosan, plays an essential role in the advancement of biologically compatible adsorbents and the realization of novel, multifunctional and heterogeneous integration of materials. Meanwhile, the blood compatibility of the GO/biopolymer gels was investigated by using human red blood cells (RBCs), which indicated that the as-prepared GO/biopolymer gels exhibited ultralow hemolysis ratio (lower than 1%) and better RBCs compatibility than the pristine GO sponge, since the adsorbed biopolymers could effectively mediate the surfactant-like property of the GO sheet. Furthermore, the 3D GO/biopolymer gels revealed ultra-high adsorption capacities against toxic cationic molecules and heavy metal ions, and presented great potential in blood purification fields. Moreover, the obtained gels also presented multifunctional ability, e.g. drug molecule delivery, and had high drug loading capacity and controllable releasing speed. The excellent blood compatibility and high toxic molecules loading capacity of the GO/biopolymer gels might confer it great potentials for various blood-contact applications.
研究领域:
材料科学
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生物医学工程
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纳米技术
·
药学
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产品关联
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2023
·
IF 9.9
Yongqian Shi,Ansheng Yao,Junqiang Han,Hengrui Wang,Yuezhan Feng,Libi Fu,Fuqiang Yang,Pingan Song
Integrating high flame retardancy and excellent electromagnetic interference (EMI) shielding into polymetric materials is extremely necessary, and well dispersing conductive fillers into polymeric materials is still a great challenge because of incompatible interfacial polarity between polymer matrix and conductive fillers. Therefore, under the premise of maintaining integral conductive films in the process of hot compression, constructing a novel EMI shielding polymer nanocomposites where conductive films closely adhere to polymer nanocmposites layers should be a fascinating stratety. In this work, salicylaldehyde-modified chitosan decorated titanium carbide nanohybrid (Ti 3 C 2 T x -SCS) was combined with piperazine-modified ammonium polyphosphate (PA-APP) to fabricate thermoplastic polyurethane (TPU) nanocomposites, which were used for construction of hierarchical nanocomposite films by inserting reduced graphene oxide (rGO) films into TPU/PA-APP/Ti 3 C 2 T x -SCS nanocomposite layers through our self-developed air assisted hot pressing technique. The total heat release, total smoke release and total carbon monoxide yield for TPU nanocomposite containing 4.0 wt% Ti 3 C 2 T x -SCS nanohybrid were 58.0%, 58.4% and 75.8% lower than those of pristine TPU, respectively. Besides, the hierarchical TPU nanocomposite film containing 1.0 wt% Ti 3 C 2 T x -SCS presented an averaged EMI shielding effectiveness of 21.3 dB in X band. This work provides a promising strategy for fabricating fire safe and EMI shielding polymer nanocomposites.
研究领域:
材料科学
·
聚合物科学
·
纳米技术
·
电磁干扰屏蔽
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防火工程
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产品关联
DOI
PubMed
高影响因子
POLYMER
·
2023
·
IF 4.6
Jia-Hui Chen,Yue-Rong Zhang,Yu-Zhong Wang,Li Chen
Fire hazard and waste crisis are two challenges for thermosets , particularly for epoxy resins (EPs) possessing the largest market share therein; yet it is beset with difficulties to solve the challenges simultaneously. Herein, a commercialized phosphorus-containing diol named diethyl bis(2-hydroxyethyl)aminomethylphosphonate (DAP) with “trinity” structures containing phosphonate ester, primary hydroxyls and tertiary amine was applied in an epoxy-anhydride curing system to achieve the catalyst-free mixed transesterification within the adaptable carboxylate/phosphonate networks. The phosphonate structure in DAP was covalently bonded into the epoxy vitrimers (EVs), endowing the EVs with intrinsic fire safety. In detail, the peak heat release rate (PHRR), total heat release (THR), total smoke production (TSP) and maximum smoke density (Ds max) values were considerably reduced by 62.0%, 73.6%, 78.9% and 70.8%, respectively. Meanwhile, owing to the self-catalytic tertiary amine and highly reactive primary hydroxyls from DAP, the mixed transesterification within the adaptable carboxylate/phosphonate networks was accelerated, endowing facile reprocessibility and malleability of the vitrimers, which were further degraded into low-mass molecules by simple alcoholysis . Killing two birds with one stone, this work provided a promising and feasible way to make sustainable and fire-safe thermosetting polymers with comprehensive properties.
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
RUSSIAN JOURNAL OF APPLIED CHEMISTRY
·
2023
·Vol. 95
·期 10
·1618-1626
·
IF 0.9
Ren Qinghui,Qian Linfeng,Yao Yanhui,Wen Yazhou,Shi Xiaohua
Abstract Cyanuric acid is an organic intermediate widely used in organic synthesis, and the traditional production method of cyanuric acid is the pyrolysis urea method. Due to the shortcomings of uneven mass transfer, many by-products and poor environmental friendliness, the production of cyanuric acid is extremely limited. In this paper, an effective method has been developed to synthesize cyanuric acid with high yield in a short period of time through the addition-elimination reaction of dihydric alcohol and urea under alkaline conditions. The reaction time, molar ratio of reactants, reaction temperature and other influencing factors were studied. Under optimized conditions, the yield of cyanuric acid is over 90%. And further the proposed reaction mechanism is verified. The synthetic method provided in this article has the advantages of easy availability of raw materials and reusability, simple operation and short reaction time, which makes the method novel and environmentally friendly.
研究领域:
有机化学
·
环境科学
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产品关联
DOI
高影响因子
Nano Research
·
2023
·
IF 9.9
Li Shuping,Li Xin,Meng Jiaqi,Bao Weier,Wang Shuang,Ye Peng,Gao Xiao-Dong,Wei Wei
Bacterial outer membrane vesicles (OMVs) are potent immunostimulants of regulating the tumor microenvironment (TME) for immunotherapy, and can be used to deliver drugs. However, the severe systemic inflammatory response triggered by OMVs upon intravenous (i.v.) injection has limited their application. Here, we developed a safe and effective strategy by conjugating doxorubicin-loaded serum albumin (SA-DOX, AD) onto the surface of OMVs using a matrix metalloproteinase (MMP)-cleavable peptide linker (cL). This approach enabled the dynamic shielding of OMVs to reduce the systemic side effects while simultaneously enhancing the anti-tumor effects through chemo-immunotherapy. Specifically, the resulting OMV-cL-AD formulation exhibited significantly enhanced accumulation at the tumor site after i.v. administration, facilitated by the SA decoration on the OMVs surface. Subsequently, the shield on the OMV-cL-AD was cleaved by the over-expressed MMP in the TME, leading to the release of both OMVs and AD. This process provided OMV-induced immunotherapy and DOX-induced chemotherapy, resulting in synergistic tumor inhibition. In conclusion, our work demonstrated the potential of OMV-cL-AD as an effective immunochemotherapy strategy that can prolong the survival time of mice without inducing side effects.
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DOI
高影响因子
Materials Today Energy
·
2023
·
IF 9.3
Ping-Hui Duan,Mei-Chen Liu,Lin Chen,Man-Cheng Long,Gang Wu,Xiu-Li Wang,Yu-Zhong Wang
The essential role of separators in battery safety and electrochemical performance makes it necessary to create advanced separators for next-generation energy storage systems. However, conventionally commercial polyolefin separators often have problems with poor thermal stability and insufficient electrolyte wettability, resulting in restricted battery performance and serious safety issues of lithium-ion batteries. Herein, we report a separator composed of silica (SiO 2 ) nanoparticles and intrinsically flame-retardant copolyester P(ET- co -PN) 5 electrospun nanofibers, i.e. SiO 2 @P(ET- co -PN) 5 (SP) separator. The copolyester nanofiber's three-dimensional skeleton filled with close-packed SiO 2 nanoparticles endows the separator with good mechanical performance (tensile strength of 9.8 MPa) and electrolyte wettability (electrolyte uptake of 333 %), superior heatproof and fireproof properties (no shrinkage at 250 °C, PHRR of 111.6 W/g, and THR of 9.4 kJ/g). The LiFePO 4 /SP/Li cells exhibit high capacity of 150.2 mAh/g, high average Coulombic efficiency of nearly 100 %, and impressive capacity retention close to 100 % after 220 cycles at 0.5 C. Notably, the LiFePO 4 /SP/Li cells can endure 1000 cycles at 5 C with 53 % of capacity retention and approximately 100 % of Coulombic efficiency. Moreover, it delivers an initial capacity of 148 mAh/g and retains 123.2 mAh/g over 45 cycles at 120 °C.
✓ 已验证
DOI
高影响因子
MOLECULES
·
2025
·Vol. 30
·期 21
·4205
·
IF 4.6
Bingbing Wang,Zejing Chu,Jingyu Wei,Ruixiang Mai,Yuan Wang,Xiaocui Wang,Yi Hou,Na Zheng,Jiao Sun,Biao Dong
In response to the limitations of hyaluronic acid (HA)—such as its high cost, short durability, and instability—in anti-aging aesthetic applications, this study developed a novel injectable micelle system, with a triple network structure. It is the particle size of approximately 400 nm and the elevated potential that enhance the crosslinking density and mechanical strength of the hydrogel. Importantly, following ultrafiltration and purification processes, the material’s hemolysis rate measured by spectrophotometry was only 3.25%, and endotoxin levels measured by the LAL assay were less than 0.5 EU/mL (test conditions: 37 °C, pH = 7, detection limit: 0.125 EU/mL). Building on this safe and stable material platform, we further designed an antibacterial wound dressing by functionalizing γ-PGA with penicillin or benzalkonium chloride. It reduced the cellular activity of Staphylococcus aureus by 78.9% and 84.2%, respectively. The outstanding safety profile, combined with customizable functionality, positions this γ-PGA-based platform as a promising multifunctional biomaterial meeting practical standards for both aesthetic medicine and wound care applications.
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DOI
PubMed
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2025
·
IF 9.7
Xiaoxuan Wei,Yurui Deng,Xiangming Hu,Lihua Jiang,Longfei Han,Yuan Cheng,Mengdan Zhang,Zhiyuan Yang,Guoyu Han,Xinyue Yang,Hengyu Xu,Zhijun Zhang,Jinfeng Li,Duxi Li
Quasi-solid polymer electrolytes (QPEs) represent one of the most promising materials for replacing flammable liquid electrolytes in lithium-ion batteries (LIBs) to enhance safety. However, the key to their further industrialization lies in developing QPEs that simultaneously possess both superior safety characteristics and excellent electrochemical performance. To address this, this work developed a flame-retardant and electrochemically high-performance Poly (vinylidene fluoride- co -hexafluoropropylene) -Polyimide (PFP-PI) QPE. This electrolyte exhibits an ionic conductivity of up to 1.02 × 10 −3 S/cm at room temperature. Batteries assembled with this electrolyte demonstrate stable cycling performance, retaining 88.49% of their capacity after 900 cycles at a 1 C current density. The electrolyte also exhibits robust mechanical properties and effectively suppresses lithium dendrite growth. Furthermore, without incorporating additional flame retardants, it significantly reduces smoke emission during thermal events while maintaining its electrochemical performance, thereby lowering the hazard risk. Flexible pouch cells assembled using this electrolyte maintain electrical integrity upon bending and cutting, showcasing high safety performance.
研究领域:
材料科学
·
电化学
·
储能技术
·
高分子科学
·
电池技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Wen Jiang,Yang Tao,Qiuxiang Yang,Yudong Wang,Lin Peng,Ce Zhang,Shounian Cheng,Jiandan Liang,Yu Han,Xia Cao
The development of flexible wearable devices necessitates a continuous supply of flexible and highly secure power to match. However, traditional energy storage devices exhibit limited capacity and lack flexibility. Self-powered energy storage systems that integrate power generation and storage capabilities are anticipated to provide a sustained power supply. In this study, we successfully developed a solid-state hydrogel electrolyte, 2MZAET, characterized by excellent tensile properties, electrical conductivity, and light transmittance. The 2MZAET gel can function as an electrode current collector in the construction of a flexible triboelectric nanogenerator (TENG). The 2MZAET-based TENG demonstrates a high-power density of 527 mW/m 2 , and the single-electrode TENG constructed with 2MZAET can be used for self-powered motion detection sensing. Furthermore, the 2MZAET hydrogel can be used as a highly efficient solid-state zinc-ion electrolyte for constructing flexible and safe zinc-ion batteries (ZIBs). Self-powered energy storage systems based on 2MZAET were designed to ensure power supply in extreme environments. This integration of TENG with safe energy storage devices positions the self-powered energy storage system as a promising solution for the continuous power supply of flexible wearable electronic devices.
研究领域:
材料科学
·
储能技术
·
柔性电子学
·
纳米发电机
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
ACS Nano
·
2025
·
IF 16
Zhen-Hui Luo,Yun-Fei Du,Zhi-Jun Jiang,Dian Zhang,Nai-Lu Shen,Jia-Xin Guo,Feng Jiang,Xi Liu,Xiuyun Zhang,Xing-Guo Qi,Xin Shen,Yuan Ma,Yiren Zhong,Jiarui He,Yuping Wu,Xin-Bing Cheng
Thermal safety remains a critical factor for the widespread adoption of sodium-ion batteries as next-generation energy storage technology. Conventional organic interfaces with poor thermal stability fail to protect the sodiated hard carbon formed through multimodal sodium storage under various abuses, particularly the highly reactive sodium clusters formed by pore filling, thus introducing substantial potential safety risks. Herein, a dual-functional high-entropy solid electrolyte interphase featuring a disordered hybrid of inorganic components is constructed on hard carbon. The high-entropy inorganic interface contains multidimensional ion transport channels with low diffusion energy barriers to drive sodium-ion deep storage with more pore-filling pathways in hard carbon, largely increasing the sodium storage capacity. NaNi1/3Fe1/3Mn1/3O2/hard carbon coin cell demonstrates 80% capacity retention after 800 cycles at a cathode loading of 17 mg cm–2. The energy density of 146.2 Wh kg–1 is achieved for the 3.7 Ah 26700 cylindrical cell. Concurrently, the thermally stable inorganic-rich interface strongly hinders the heat production from electrode–electrolyte reactions, significantly enhancing thermal safety of sodium-ion batteries. The thermal runaway onset temperature of the fully charged pouch cell is increased from 52.4 to 161.9 °C, and the maximum temperature rise rate is decreased from 1628.5 °C min–1 to 17.4 °C min–1. This work provides new insights into modulating the sodium storage mechanism and enhancing the safety of sodium-ion batteries.
研究领域:
储能与转换
·
材料科学
·
电化学
·
电池安全
·
无机材料
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）