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学者姓名：熊雷
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Abstract ：
首先，将9,9-二(3,5-二甲基-4-羟基苯基)芴（DMBHF）、9,9-双(4-羟苯基)芴（BHF）和4,4'-二氟二苯甲酮（DFB）在高温下缩聚，得到聚芴醚酮（PFEK-x)(x=30、40、50,x为DMBHF含量，以DFB的物质的量计，下同）；接着，利用溴代反应将PFEK-x的甲基功能化为溴甲基；然后，通过4-羟基苯磺酸钠的S_N2亲核取代制得具有不同离子交换容量的磺化聚芴醚酮（SPFEK-x）；最后，通过溶液浇铸法成膜并酸化，制得新型低成本质子交换膜（PEMs）。采用~1HNMR、FTIR、TGA对其进行了表征，并对其性能进行了测试。结果表明，SPFEK-40膜具有较高的质子传导率及离子选择性、较低的钒离子渗透率及面电阻，综合性能优异。以SPFEK-40膜组装的全钒液流电池（VRFB）在电流密度为80 m A/cm~2时的能量效率为88.2%，高于以Nafion 212膜组装的VRFB的84.8%。此外，以SPFEK-40膜组装的VRFB在30次循环后放电容量保持率为84.3%，远高于以Nafion 212膜组装的VRFB(66.1%）。该合成路线的原料来源广泛，价格低廉，不涉及危险的磺化反应，易于工业放大。制得的SPFEK-x均具有良好的机械性能和氧化稳定性。
Keyword ：
全钒液流电池 全钒液流电池 功能材料 功能材料 聚芴醚酮 聚芴醚酮 能量效率 能量效率 质子交换膜 质子交换膜 质子传导率 质子传导率
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| GB/T 7714 | 叶洲麟 , 熊雷 , 林起浪 et al. 全钒液流电池用磺化聚芴醚酮质子交换膜的制备及性能 [J]. | 精细化工 , 2024 , 41 (02) : 348-357,380 . |
| MLA | 叶洲麟 et al. "全钒液流电池用磺化聚芴醚酮质子交换膜的制备及性能" . | 精细化工 41 . 02 (2024) : 348-357,380 . |
| APA | 叶洲麟 , 熊雷 , 林起浪 , 陈栋阳 . 全钒液流电池用磺化聚芴醚酮质子交换膜的制备及性能 . | 精细化工 , 2024 , 41 (02) , 348-357,380 . |
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该文以生物质材料作为原料制备了单组分膨胀型阻燃剂，并将其加入聚乳酸中制备了复合材料。实验结果表明，该阻燃剂能够显著提高聚乳酸的阻燃性能和抗熔滴性能，且热稳定性良好。该实验涉及高分子材料配方设计、成型加工、性能测试、结构表征等专业知识，可使学生掌握高分子材料阻燃机理，熟练使用相关仪器设备进行测试与分析，有利于他们提高综合运用知识的能力，并针对高分子材料与工程领域的复杂工程问题设计解决方案。
Keyword ：
探索性实验 探索性实验 生物质 生物质 聚乳酸 聚乳酸 阻燃 阻燃
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| GB/T 7714 | 靳艳巧 , 曹静 , 胡礼波 et al. 全生物质单组份膨胀型阻燃剂的制备与性能研究实验设计 [J]. | 实验技术与管理 , 2024 , 41 (03) : 232-237 . |
| MLA | 靳艳巧 et al. "全生物质单组份膨胀型阻燃剂的制备与性能研究实验设计" . | 实验技术与管理 41 . 03 (2024) : 232-237 . |
| APA | 靳艳巧 , 曹静 , 胡礼波 , 熊雷 . 全生物质单组份膨胀型阻燃剂的制备与性能研究实验设计 . | 实验技术与管理 , 2024 , 41 (03) , 232-237 . |
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Poly(fluorenyl ether ketone)s (PFEK-x) were firstly synthesized from high-temperature polycondensation of 9,9-bis(3,5-dimethyl-4-hydroxyphenyl)fluorene (DMBHF), 9,9-bis(4-hydroxyphenyl) fluorene (BHF) and 4,4'-difluorophenone (DFB), herein, x=30, 40, 50, and refers to the content of DMBHF (based on the amount of substance of DFB, the same below). The PFEK-x obtained were then brominated by bromination of the methyl groups and then reacted with sodium 4-hydroxybenzenesulfonate to yield sulfonated poly(fluorenyl ether ketone)s (SPFEK-x) with different ion exchange capacities. Finally, novel and low-cost proton exchange membranes (PEMs) were prepared by solution-casting SPFEK-x into membranes and acidification. The samples were characterized by 1HNMR, FTIR and TGA, followed by analysis on their properties. The results showed that SPFEK-40 membrane exhibited excellent comprehensive performances, such as high proton conductivity and icon selectivity, low VO2+ permeability, and low surface resistance. The energy efficiency of vanadium redox flow battery (VRFB) assembled with SPFEK-40 membrane reached 88.2% at a current density of 80 mA/cm2, higher than that of the VRFB assembled with Nafion 212 (84.8%). In addition, the discharge capacity retention ratio of the VRFB assembled with SPFEK-40 membrane after 30 cycles was 84.3%, which was much higher than that of the VRFB assembled with Nafion 212 (66.1%). Moreover, the synthetic route could be scaled-up easily since it was based on inexpensive raw materials without dangerous sulfonation reactions. The SPFEK-x membranes also displayed good mechanical properties and oxidation stability. © 2024 Fine Chemicals. All rights reserved.
Keyword ：
Density (specific gravity) Density (specific gravity) Energy efficiency Energy efficiency Ethers Ethers Flow batteries Flow batteries Functional materials Functional materials Ion exchange Ion exchange Ion exchange membranes Ion exchange membranes Ketones Ketones Proton conductivity Proton conductivity Vanadium Vanadium
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| GB/T 7714 | Ye, Zhoulin , Xiong, Lei , Lin, Qilang et al. Preparation and properties of sulfonated poly(fluorenyl ether ketone) proton exchange membranes for vanadium redox flow battery [J]. | Fine Chemicals , 2024 , 41 (2) : 348-357 and 380 . |
| MLA | Ye, Zhoulin et al. "Preparation and properties of sulfonated poly(fluorenyl ether ketone) proton exchange membranes for vanadium redox flow battery" . | Fine Chemicals 41 . 2 (2024) : 348-357 and 380 . |
| APA | Ye, Zhoulin , Xiong, Lei , Lin, Qilang , Chen, Dongyang . Preparation and properties of sulfonated poly(fluorenyl ether ketone) proton exchange membranes for vanadium redox flow battery . | Fine Chemicals , 2024 , 41 (2) , 348-357 and 380 . |
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In recent years, thermoplastic polyurethane elastomer has shown great application prospects in the fields of polymer film due to its outstanding tensile properties, high elasticity, wear resistance, oil resistance, low temperature resistance, wide range of hardness, and other properties. However, its flammable properties greatly limit its application in the field of polymer film. The self-made GO was used as a carbon source, phenylboronic acid as an acid source, ammonium polyphosphate (APP) as an acid and gas source, and intumescent flame retardant (IFR) was compounded. The IFR was introduced into thermoplastic polyurethane (TPU) to prepare a series of IFR/TPU composite films with different formulations. The results show that PA and GO can make up for the loss of mechanical properties caused by the addition of APP and improve the thermal stability of the composite film, and the IFR flame retardant composed of the two and APP can effectively improve the flame retardancy of the composite film. When the additions of APP, PA, and GO were 10, 3, and 0.75%, respectively, the LOI value of the IFR/TPU composite material reached 29.5, the flame-retardant grade reached V-0, and its peak heat release rate, total heat release, peak smoke production rate, and total smoke release were 86.0, 64.9, 70.5, and 21.7%, greatly lower than pure TPU, respectively. The flame retardancy of the spacer composite membrane constructed from Ti-7 was significantly improved, and the burn-through time of the single-layer film sample was increased by 2.22 times, and the double-layer film sample was increased by 2.63 times.
Keyword ：
Expansion flame retardant Expansion flame retardant Flame-retardant Flame-retardant Mechanical properties Mechanical properties Space composite film Space composite film Thermoplastic polyurethane elastomer Thermoplastic polyurethane elastomer
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| GB/T 7714 | Zheng, Weijie , Cai, Qingshu , Xiong, Lei et al. Highly efficient GO-based synergistic intumescent flame retardant/thermoplastic polyurethane for spatial composite film: insight into flame retardancy and mechanism [J]. | JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY , 2024 , 149 (14) : 7289-7300 . |
| MLA | Zheng, Weijie et al. "Highly efficient GO-based synergistic intumescent flame retardant/thermoplastic polyurethane for spatial composite film: insight into flame retardancy and mechanism" . | JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY 149 . 14 (2024) : 7289-7300 . |
| APA | Zheng, Weijie , Cai, Qingshu , Xiong, Lei , Zheng, Yuying . Highly efficient GO-based synergistic intumescent flame retardant/thermoplastic polyurethane for spatial composite film: insight into flame retardancy and mechanism . | JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY , 2024 , 149 (14) , 7289-7300 . |
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A nitrogen-doped carbon quantum dots (N-CQDs)-based "on-off" fluorescent nanosensor was profitably synthe-sized through one-pot hydrothermal treatment of citric acid and o-phenylenediamine for the determination of Fe3+ and imaging towards cancerous cells in vitro. The synthesized N-CQDs exhibited excellent photo-luminescence and favorable biocompatibility. The excitation-dependent fluorescence emission spectra were observed and the maximum emission wavelength was 483 nm at the excitation wavelength of 420 nm. The fluorescent N-CQDs had a selective and sensitive response to Fe3+ with a limit of detection of 0.177 mu M and an allowable detection range of 0-110 mu M. The sensor was applied for the determination of Fe3+ ions in tap water with satisfactory results. Moreover, the N-CQDs provide a practical and promising method for cellular imaging due to their excellent fluorescence potency and negligible cytotoxicity.
Keyword ：
Carbon quantum dots Carbon quantum dots Cell imaging Cell imaging Fe3+ions detection Fe3+ions detection Fluorescence probe Fluorescence probe
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| GB/T 7714 | Lai, Chunmei , Lin, Simin , Xiong, Lei et al. High quantum yield nitrogen-doped carbon quantum dots: Green synthesis and application as "on-off" fluorescent sensors for specific Fe3+ions detection and cell imaging [J]. | DIAMOND AND RELATED MATERIALS , 2023 , 133 . |
| MLA | Lai, Chunmei et al. "High quantum yield nitrogen-doped carbon quantum dots: Green synthesis and application as "on-off" fluorescent sensors for specific Fe3+ions detection and cell imaging" . | DIAMOND AND RELATED MATERIALS 133 (2023) . |
| APA | Lai, Chunmei , Lin, Simin , Xiong, Lei , Wu, Yuxin , Liu, Chao , Jin, Yanqiao . High quantum yield nitrogen-doped carbon quantum dots: Green synthesis and application as "on-off" fluorescent sensors for specific Fe3+ions detection and cell imaging . | DIAMOND AND RELATED MATERIALS , 2023 , 133 . |
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Synthesis of lignin-based carbon dots (LCDs) with high quantum yield (QY), stable fluorescence properties and biocompatibility has been a challenge. Here, we propose an improved two-step strategy for producing highquality LCDs from enzymatic hydrolysis lignin (EHL). The p-aminobenzenesulfonic acid used in the strategy not only provides nitrogen and sulfur elements, but also tailors the disordered three-dimensional structure of EHL. The successful co-doping of N and S elements favors the reduction of the optical energy bandgap (Eg), resulting in a high QY of 45.05% for LCDs. The LCDs exhibited superior selectivity and sensitivity for Fe3+ with a limit of detection (LOD) of 0.15 & mu;M when Fe3+ concentration was 50-500 & mu;M. In addition, LCDs demonstrated significant fluorescence in HepG2 cells and HepG2 cells loaded with LCDs at a concentration of 80 & mu;g/mL showed good viability, suggesting that they are suitable for in vivo applications. The luminescent centers of LCDs change during pH regulation and thus show a special visual response to pH changes, making them have great potential for detecting metabolism in living cells. This work provides a novel and low-cost method for fabricating sustainable fluorescent probes for chemical sensing and bioimaging.
Keyword ：
Bioimaging Bioimaging Carbon dots Carbon dots Enzymatic hydrolysis lignin Enzymatic hydrolysis lignin Fe 3+detection Fe 3+detection
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| GB/T 7714 | Lin, Simin , Lai, Chunmei , Huang, Zejie et al. Sustainable synthesis of lignin-derived carbon dots with visible pH response for Fe3+detection and bioimaging [J]. | SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY , 2023 , 302 . |
| MLA | Lin, Simin et al. "Sustainable synthesis of lignin-derived carbon dots with visible pH response for Fe3+detection and bioimaging" . | SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 302 (2023) . |
| APA | Lin, Simin , Lai, Chunmei , Huang, Zejie , Liu, Wei , Xiong, Lei , Wu, Yuxin et al. Sustainable synthesis of lignin-derived carbon dots with visible pH response for Fe3+detection and bioimaging . | SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY , 2023 , 302 . |
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Proton exchange membranes (PEMs) are an important type of vanadium redox flow battery (VRFB) separator that play the key role of separating positive and negative electrolytes while transporting protons. In order to lower the vanadium ion permeability and improve the proton selectivity of PEMs for enhancing the Coulombic efficiency of VRFBs, herein, various amounts of nano-sized SiO2 particles were introduced into a previously optimized sulfonated poly(arylene ether) (SPAE) PEMs through the acid-catalyzed sol-gel reaction of tetraethyl orthosilicate (TEOS). The successful incorporation of SiO2 was confirmed by FT-IR spectra. The scanning electron microscopy (SEM) images revealed that the SiO2 particles were well distributed in the SPAE membrane. The ion exchange capacity, water uptake, and swelling ratio of the PEMs were decreased with the increasing amount of SiO2, while the mechanical properties and thermal stability were improved significantly. The proton conductivity was reduced gradually from 93.4 to 76.9 mS cm(-1) at room temperature as the loading amount of SiO2 was increased from 0 to 16 wt.%; however, the VO2+ permeability was decreased dramatically after the incorporation of SiO2 and reached a minimum value of 2.57 x 10(-12) m(2) s(-1) at 12 wt.% of SiO2. As a result, the H+/VO2+ selectivity achieved a maximum value of 51.82 S min cm(-3) for the composite PEM containing 12 wt.% of SiO2. This study demonstrates that the properties of PEMs can be largely tuned by the introduction of SiO2 with low cost for VRFB applications.
Keyword ：
composite composite proton conductivity proton conductivity proton exchange membrane proton exchange membrane sulfonated poly(arylene ether) sulfonated poly(arylene ether) vanadium permeability vanadium permeability
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| GB/T 7714 | Ye, Zhoulin , Chen, Nanjie , Zheng, Zigui et al. Preparation of Sulfonated Poly(arylene ether)/SiO2 Composite Membranes with Enhanced Proton Selectivity for Vanadium Redox Flow Batteries [J]. | MOLECULES , 2023 , 28 (7) . |
| MLA | Ye, Zhoulin et al. "Preparation of Sulfonated Poly(arylene ether)/SiO2 Composite Membranes with Enhanced Proton Selectivity for Vanadium Redox Flow Batteries" . | MOLECULES 28 . 7 (2023) . |
| APA | Ye, Zhoulin , Chen, Nanjie , Zheng, Zigui , Xiong, Lei , Chen, Dongyang . Preparation of Sulfonated Poly(arylene ether)/SiO2 Composite Membranes with Enhanced Proton Selectivity for Vanadium Redox Flow Batteries . | MOLECULES , 2023 , 28 (7) . |
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Polylactic acid (PLA) is recognized as a promising alternative to traditional petroleum-based plastics due to its excellent biodegradability and well-balanced mechanical properties. Nevertheless, the disadvantages of PLA such as flammability in fire, susceptibility to UV light attack, and slow natural degradation rate limit its application and recovery in high-security areas. In this work, a spherical chitosan-based additive DMPC-Al with mirrorsymmetric internal structure was assembled by layer-by-layer electrostatic reactions, resulting in PLA characterized excellent comprehensive performances. When 7 wt% DMPC-Al was added into PLA, the LOI value of the composite PLA/7DMPC-Al was increased to 29.6%, and UL-94 reached V-0 grade without any molten droplets. The peak heat release rate and total heat release rate were reduced by 13.5% and 16.2%, respectively, and the carbon layer was highly self-expanding. In addition, the UPF of PLA/7DMPC-Al was increased to 34.45 from 0.45 of pure PLA, blocking most of the UV light attacks and extending the service life of PLA. Surprisingly, DMPC-Al actually improved the impact toughness of PLA by 38.5% and facilitated PLA to work continuously when drawing large curved shapes by 3D printing. More importantly, the introduction of DMPC-Al changed the sensitivity of PLA to water and provided sufficient energy for microbial growth, thus accelerating the degradation rate of PLA in the soil under abandoned buildings. This work provides a practical and feasible strategy to achieve multifunctionality of degradable plastics.
Keyword ：
Chitosan Chitosan Intumescent flame retardant Intumescent flame retardant Poly (lactic acid) Poly (lactic acid) Rapid degradation in soil Rapid degradation in soil Ultraviolet resistance Ultraviolet resistance
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| GB/T 7714 | Huang, Zejie , Hu, Libo , Hong, Jiahui et al. Mirror assembly of spherical chitosan-based additives: Towards a circular revolution of PLA from high-value applications to soil degradation [J]. | CHEMICAL ENGINEERING JOURNAL , 2023 , 479 . |
| MLA | Huang, Zejie et al. "Mirror assembly of spherical chitosan-based additives: Towards a circular revolution of PLA from high-value applications to soil degradation" . | CHEMICAL ENGINEERING JOURNAL 479 (2023) . |
| APA | Huang, Zejie , Hu, Libo , Hong, Jiahui , Jin, Yanqiao , Xiong, Lei , Shi, Yongqian . Mirror assembly of spherical chitosan-based additives: Towards a circular revolution of PLA from high-value applications to soil degradation . | CHEMICAL ENGINEERING JOURNAL , 2023 , 479 . |
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本发明公开了一种DOPO/ATMP改性壳聚糖负载铝基单组份膨胀型阻燃剂及其制备方法和应用。本发明以壳聚糖、三聚氰胺、DOPO、ATMP和铝盐为原料，通过将缩醛化反应、羟甲基化反应、鳌合离子反应相结合，设计制备了一种DOPO/ATMP改性壳聚糖负载铝基单组份膨胀型阻燃剂。本发明阻燃剂的制备工艺简单，原料来源绿色广泛，与聚合物相容性好，对复合材料机械性能影响小，对PBAT阻燃效率高，能够有效防止熔体熔滴和浓烟排放，有望促进PBAT应用于更高安全标准的领域。
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| GB/T 7714 | 靳艳巧 , 黄泽杰 , 常万鹏 et al. DOPO/ATMP改性壳聚糖负载铝基单组份膨胀型阻燃剂及其制备方法和应用 : CN202210843655.X[P]. | 2022-07-18 00:00:00 . |
| MLA | 靳艳巧 et al. "DOPO/ATMP改性壳聚糖负载铝基单组份膨胀型阻燃剂及其制备方法和应用" : CN202210843655.X. | 2022-07-18 00:00:00 . |
| APA | 靳艳巧 , 黄泽杰 , 常万鹏 , 胡礼波 , 熊雷 , 袁珮 . DOPO/ATMP改性壳聚糖负载铝基单组份膨胀型阻燃剂及其制备方法和应用 : CN202210843655.X. | 2022-07-18 00:00:00 . |
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本发明公开了一种全生物质自组装单组份膨胀型阻燃剂及其制备方法和应用。本发明利用壳聚糖、烟酰胺和植酸三种生物质为原料，通过层层自组装制得一种全生物质自组装单组份膨胀型阻燃剂，其制备工艺简单，原料来源广泛，绿色环保可再生，所得阻燃剂与聚合物相容性好，对复合材料机械性能影响较小，应用在PLA上具有较高的阻燃效率，能有效抑制其熔体熔滴和浓烟排放。
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| GB/T 7714 | 熊雷 , 黄泽杰 , 向安娜 et al. 全生物质自组装单组份膨胀型阻燃剂及其制备方法和应用 : CN202210843654.5[P]. | 2022-07-18 00:00:00 . |
| MLA | 熊雷 et al. "全生物质自组装单组份膨胀型阻燃剂及其制备方法和应用" : CN202210843654.5. | 2022-07-18 00:00:00 . |
| APA | 熊雷 , 黄泽杰 , 向安娜 , 靳艳巧 , 袁珮 , 吴红良 . 全生物质自组装单组份膨胀型阻燃剂及其制备方法和应用 : CN202210843654.5. | 2022-07-18 00:00:00 . |
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