CHEMICAL ENGINEERING JOURNAL
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2026
·
IF 12.5
Tianren Zhao,Yuanqing Cao,Jiarui Dong,Hong Zhang,Chengzhi Wang,Zengguo Feng,Haibo Jin,Aiying Zhang
The quest for ever-growing energy density of lithium-ion batteries dictates urgent concerns about their thermal safety. Phase change materials (PCMs) are considered promising for battery thermal management, yet their extensive application is restricted by inherent limitations such as leakage risk, low thermal conductivity, and flammability. Here, we fabricate a multilayered PCL@PEG/Al₂O₃-ADP (CEAD) composite film through strategy of coaxial electrospinning and dip-coating. Benefiting from the effective PEG encapsulation, thermally conductive Al₂O₃ fillers, and an ADP coating for flame retardancy, the composite film demonstrates excellent shape stability with no leakage even after 12 h of continuous exposure at 50 °C, high phase change enthalpy, improved thermal conductivity, and self-extinguishing behavior. Its notable foldability also ensures facile installation. When wrapped around a lithium-ion battery, the film maintains the battery temperature below 45 °C under a 5C discharge rate, which is 13 °C lower compared to the bare one. Thus, the composite film provides simultaneous efficient thermal management and flame retardancy, meeting critical safety requirements for high energy density lithium-ion batteries. This work offers a viable pathway for developing multifunctional thermal management materials suitable for advanced battery systems and other electronics.
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高影响因子
Journal of Cleaner Production
·
2023
·
IF 11.1
Zhipan Wen,Shen Li,Ge Zhang,Runqiao Chen,Yalei Zhang,Xiaoping Liao,Gang Cheng,Rong Chen
Magnetic hollow Fe 3 O 4 -based Mg/Al layered double hydroxide (Fe 3 O 4 @SiO 2 @LDH) was successfully synthesized and subsequently the laboratory scale tests were conducted to systematically investigate the sequestration of roxarsone (ROX) and arsenate (As(V)). Owing to its abundant surface metal hydroxyl (M-OH) groups and exchangeable CO 3 2− groups in the interlayer of MgAl-LDH nanosheets , the obtained Fe 3 O 4 @SiO 2 @LDH exhibited remarkable behavior for As(V) and ROX removal. Both As(V) and ROX could be effectively immobilized at a relatively wide pH range (3–8), and the maximum adsorption capacities of As(V) and ROX were 96.47 and 71.67 mg/g, respectively. Meanwhile, the negligible mutual effect demonstrated the Fe 3 O 4 @SiO 2 @LDH can simultaneously remove inorganic and organic arsenic compounds . The competitive cations/anions (except for PO 4 3− ions) and ionic strength were negligible on As(V) and ROX removal, whereas the inhibitory effect stem from humic acid (HA) seemed to be more seriously for As(V) than that of ROX. Adsorption mechanism of As(V)/ROX were attributed to electrostatic attraction and ion/ligand exchange process, whereas hydrogen bonding and π-π interaction may also involve in the ROX removal. Furthermore, the excellent performance in fix-bed column tests and prominent reusability indicated this magnetic Fe 3 O 4 @SiO 2 @LDH was a promising candidate adsorbent and of great potential application in organic/inorganic As-contamination wastewater treatment .
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PROGRESS IN ORGANIC COATINGS
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2022
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IF 6.206
Changhua Li,Yi He,Yang Zhao,Zhijun Li,Dan Sun,Hongjie Li,Wen Chen,Jing Yan,Guiyang Wu,Xi Yuan
Epoxy composite coating with active corrosion inhibition property was prepared through cathodic electrophoretic deposition with the incorporation of Ti 3 C 2 Tx@Mg-Al layered double hydroxides (LDH) hybrid material . Hydrothermal method was adopted to synthesize molybdate (MoO 4 2− )-intercalated Mg Al LDH, which was self-assembled on the surface of Ti 3 C 2 Tx MXene through electrostatic interaction to improve the zeta potential of the Ti 3 C 2 Tx surface to positive value. Fourier transform infrared spectroscopy , X-ray diffraction, transmission electron microscope, scanning electron microscope, X-ray photoelectron spectroscopy, zeta (ζ) potentials test and uv-vis spectroscopic analysis results showed that Mg Al LDH and Ti 3 C 2 Tx@Mg-Al LDH were successfully prepared and Ti 3 C 2 Tx@Mg-Al LDH had ion exchange property. The prepared LDH and Ti 3 C 2 Tx@Mg-Al LDH were added to electrophoretic paint as anti-corrosive additives. After deposition process of 150 V for 2 min on the P110 steel surface, composite coatings had thicknesses of ~110 μm. Electrophoretic deposition has advantages in controlling coating thickness than traditional spray method. Moreover, Ti 3 C 2 Tx@Mg-Al LDH additive endowed composite coating with active corrosion inhibition capacity through ions exchange property between corrosive medium Cl − and MoO 4 2− in the Mg Al LDH interlayer. Electrochemical impedance spectroscopy (EIS) test results showed that Ti 3 C 2 Tx@Mg-Al LDH/epoxy coating exhibited outstanding corrosion protection property. This research provides a new way of using Ti 3 C 2 Tx MXene in the cathodic electrophoretic paint to prepare active anti-corrosive coating.
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JOURNAL OF CHEMICAL AND ENGINEERING DATA
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2023
·
IF 2.6
Shuyang Shi,Baozhong Ma,Shuang Shao,Yongqiang Chen,Chengyan Wang
An original technology named HNO3 pressure leaching has been proposed by our team to leach Al from coal gangue and fly ash. Although the preliminary separation of Al and Fe had been achieved during leaching, a small amount of Fe impurity was still unavoidably dissolved into the leach liquor. To obtain pure Al2O3 during subsequent pyrolysis, it is imperative to synchronously remove Fe3+ during the crystallization of Al(NO3)3·9H2O. Herein, the phase equilibria of the Al(NO3)3–Fe(NO3)3–H2O(−HNO3) system at 25–40 °C and 0–8.12 mol kg–1 of HNO3 molality were investigated. The results indicated that the ternary system was a simple cosaturated type consisting of an immutable point, two univariate curves, and two crystallization regions. Notably, the solubility and crystallization region of Al(NO3)3·9H2O were barely impacted by acidity, while the opposite was true for Fe(NO3)3·9H2O. This finding was instructive for the crystallization of Fe(NO3)3·9H2O from the liquor with high Fe and low Al. Moreover, a high crystallization yield could be obtained at low temperatures. Finally, an appropriate crystallization procedure was provided. This study is expected to provide basic data and theoretical support for the crystallization and separation of mixed nitrates containing Al and Fe.
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MOLECULES
·
2022
·Vol. 27
·期 7
·2088
·
IF 4.927
Xue-Li Liu,Yong-Hui Wang,Shu-Yue Ren,Shuang Li,Yu Wang,Dian-Peng Han,Kang Qin,Yuan Peng,Tie Han,Zhi-Xian Gao,Jian-Zhong Cui,Huan-Ying Zhou
The efficient capture of multi-pollutant residues in food is vital for food safety monitoring. In this study, in-situ-fabricated magnetic MIL-53(Al) metal organic frameworks (MOFs), with good magnetic responsiveness, were synthesized and applied for the magnetic solid-phase extraction (MSPE) of chloramphenicol, bisphenol A, estradiol, and diethylstilbestrol. Terephthalic acid (H2BDC) organic ligands were pre-coupled on the surface of amino-Fe3O4composites (H2BDC@Fe3O4). Fe3O4@MIL-53(Al) MOF was fabricated by in-situ hydrothermal polymerization of H2BDC, Al (NO3)3, and H2BDC@Fe3O4. This approach highly increased the stability of the material. The magnetic Fe3O4@MIL-53(Al) MOF-based MSPE was combined with high-performance liquid chromatography-photo diode array detection, to establish a novel sensitive method for analyzing multi-pollutant residues in milk. This method showed good linear correlations, in the range of 0.05–5.00 μg/mL, with good reproducibility. The limit of detection was 0.004–0.108 μg/mL. The presented method was verified using a milk sample, spiked with four pollutants, which enabled high-throughput detection and the accuracies of 88.17–107.58% confirmed its applicability, in real sample analysis.Keywords:magnetic metal organic framework (MMOFs);magnetic solid-phase extraction (MSPE);multi-pollutants;high-performance liquid chromatography (HPLC)
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PubMed
高影响因子
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
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2022
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IF 6.044
Y. Xing,N.Y. Li,C.J. Li,P. Gao,H.D. Guan,C.M.Y. Yang,C.J. Pu,J.H. Yi
SiC particles (SiC p ) reinforced Al matrix composites as the one of the most representative ones in the field of metal matrix composites , and many researches about the enhancement effect of SiC p size on mechanical properties of SiC p /Al composites have mainly focused on the comparison of micron-sized and nano-sized SiC p . In this paper, low-cost submicron-sized SiC p with rare attention was used as novel reinforcements, and the enhancement effect was compared with that of nano-sized SiC p . At the same time, a strategy of oxidation treatment for SiC p is developed in the field of powder metallurgy , and related work has been carried out. Raw submicron-sized SiC p (hereafter named SiC smp ) and raw nano-sized SiC p (hereafter named SiC np ) were calcined at 1100 °C. Then, SiC smp (raw and oxidized) and SiC np (raw and oxidized) were used as reinforcements to prepare Al matrix composites with different reinforcement content by powder metallurgy. The enhancement effect of raw SiC np is slightly better than that of raw SiC smp when the content is below 7 vol%. Although the agglomerations of oxidized SiC p were found owing to increased agglomeration tendency after oxidation treatment for SiC p , the tensile strength of composites were enhanced significantly, especially for SiC np /Al composites. Furthermore, the ductility of SiC smp /Al composites was also improved after calcining for SiC smp and thus excellent comprehensive mechanical properties were obtained.
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JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
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2022
·Vol. 103
·期 3
·876-889
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IF 2.606
Luo Qiuzi,Sun Yihua,Lv Xin,Huang Long,Fang Liang,Wang Rui
Al and Ga were co-doped into ZnO lattice (AGZ) by the sol–gel method. Herein, graphite carbon nitride (g-C 3 N 4 ) was synthesized by using the thermal decomposition method, which was used to integrate with the obtained AGZ to create direct Z-scheme Al/Ga co-doping biphasic ZnO/g-C 3 N 4 heterojunction by the simple single-phase dispersion method. The synthesized catalysts of composition, optical properties, topography structure and chemical state of element of the prepared AGZ/g-C 3 N 4 composites were analyzed by XRD, FT-IR, UV, PL, TEM and XPS respectively. The results have shown that the combination of AGZ and g-C 3 N 4 to form a direct Z-type heterojunction can effectively reduce the band gap of AGZ, thereby shifting the absorption edge to the visible light region. The PL spectroscopy study of the synthesized sample found that, compared with bare g-C 3 N 4 or AGZ catalyst, AGZ/g-C 3 N 4 significantly reduced the recombination of photogenerated electrons and holes, thereby ensuring that more reactive groups participate in the dye degradation process. The degradation experiment of methylene blue(MB) dye verifies that the AGZ/CN sample has excellent photocatalytic performance. Al/Ga co-doped ZnO/g-C 3 N 4 catalyst showed the maximum photocatalytic MB degradation of 95.4% after 150 min in visible light illumination, while the degradation efficiency of ZnO and g-C 3 N 4 are only 30.5% and 50.1%, respectively. It have observed that ·O 2 − , ·OH and h + radicals were the main active species that affect the photocatalytic degradation of dyes by radical trapping experiment. In addition, the heterojunction formed by AGZ and g-C 3 N 4 inhibited the photocorrosion of ZnO, which was confirmed by these five consecutive dye degradation tests. At the same time, in order to determine the optimal compounding ratio, four groups of AGZ/CN with different ratios were prepared. It was found that AGZ/CN15 has the highest catalytic efficiency, and the degradation of MB reached 94% within 2.5 h. This work will open up a new path for the development of more effective photocatalysts for organic matter treatment.
Graphical abstract
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RSC Advances
·
2022
·Vol. 12
·期 37
·24163-24171
·
IF 4.036
Gang Tang,He Wang,Chunyan Chen,Yabei Xu,Dongping Chen,Dongli Wang,Yunjun Luo,Xiaoyu Li
Energetic composites composed of polymeric binders and metallic fuels are widely used in industrial and military fields, and their performance is largely dependent on the combustion process. Fluorinated energetic polymeric binders can facilitate the combustion of metallic fuels such as aluminum particles and enhance the energetic level of the energetic composites. In this report, fluorinated energetic polyurethanes (FPUs) were applied as binders for energetic composites with aluminum nanoparticles (AlNPs). The fluorinated components in the energetic binder could be a uniform dispersion inside the composites, endowing the composites with decent mechanical properties and high combustion rate. Most significantly, compared with the composites without fluorine, FPU/AlNP energetic composites not only showed a remarkably improved combustion efficiency, but also, surprisingly, a dramatic enhancement in the heat of explosion by 91.2%, despite the low content of fluorine. By analyzing the combustion products together with kinetic simulations derived from chemical reaction neural network (CRNN) modelling, a detailed mechanistic understanding of the combustion process was provided, suggesting the importance of synergistic effects brought by the fluorinated and energetic components.
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PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2022
·
IF 16.744
Zhe Zhao,Wuming Xie,Zijun Huang,Haiming Cai,Yuemeng Ji,Baocong Zhao
The antibiotic florfenicol (FF) discharged into the aquatic environment may cause serious water pollution. Therefore, an effective way to eliminate FF antibiotics from the water bodies should be proposed. Herein, MIL-53(Al)-supported nano zero-valent iron (NZVI@MIL-53(Al)) was synthesized and applied to activate hydrogen peroxide (H 2 O 2 ) to spark the Fenton reaction for FF antibiotics removal. The characterization results demonstrated the successful loading and good dispersion of NZVI onto MIL-53(Al). 100 % FF antibiotics degradation could be achieved under the optimal reaction conditions, including an initial FF antibiotics concentration of 20 mg L −1 , initial solution pH of 3.0, NZVI@MIL-53(Al) dose of 25 mg L −1 , and H 2 O 2 concentration of 0.2 mM. And after four cycles, the FF antibiotic degradation efficiency was still 81.18 %. The lowest tolerance for HCO 3 − was observed while the degradation activity was maintained at the presence of Cl − and HA. EPR measurement and free radical quenching experiment showed that ·OH was the main reactive specie in the NZVI@MIL-53(Al)/H 2 O 2 system. FF antibiotics degradation involved hydroxylation reactions (electrophilic substitution), dehalogenation, hydrolysis, and cleavage based on the UPLC-MS/MS analysis and DFT calculation. Noteworthy, 0.247 mg L −1 of F − and 1.2 mg L −1 of Cl − were detected in the solution after the reaction due to the breakage of the stable C–Cl bond and C–F bond. Finally, this work revealed that the NZVI@MIL-53(Al), with high stability and recyclability, could be a potential heterogeneous catalyst for treating antibiotic wastewater.
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PROGRESS IN ORGANIC COATINGS
·
2021
·
IF 5.161
Song Xiao,Xiangkang Cao,Zehua Dong,Xiaoze Ma,Xinxin Zhang,Guangyi Cai
Ce-based imidazole complex (Ce-IM/ZIF-8) nanoparticles (NPs) were fabricated by doping cerium ions (Ce 3+ /Ce 4+ ) in zeolite imidazolate framework-8 (ZIF-8) through a one-pot co-precipitation method. The stimuli-responsive release of Ce 3+ /Ce 4+ species from the Ce-IM/ZIF-8 NPs under acidic conditions was confirmed by UV–Vis spectroscopy. Electrochemical impedance spectroscopy and scanning electron microscope were applied to evaluate the corrosion inhibition efficiency of Ce-IM/ZIF-8 NPs on bare aluminum alloy , and it demonstrates that the released Ce 3+ /Ce 4+ , Zn 2+ ions and imidazole could absorb on the surface of Al alloy by chelating effect, forming a compact corrosion barrier on the Al substrate. Furthermore, the Ce-IM/ZIF-8 NPs were encapsulated into epoxy (EP) resin to obtain a composite coating , and it is found that when the NPs addition amount was 1 wt%, the EP-based composite coating exhibits excellent corrosion barrier and promising self-healing ability, with its impedance at 0.01 Hz maintaining 2.2 × 10 8 Ω·cm 2 even after 6 cycles of aging tests (720 h), which could be ascribed to the synergistic inhibition of released Ce ions and imidazole molecules on Al substrate beneath the defective coating.
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SEPARATION AND PURIFICATION TECHNOLOGY
·
2021
·
IF 7.312
Heng Mao,Shen-Hui Li,Ao-Shuai Zhang,Li-Hao Xu,Heng-Xing Lu,Jing Lv,Zhi-Ping Zhao
Furfural is a typical biomass-derived platform chemical. Conventional processes for furfural production are uneconomical and energy-intensive because only about 3–6 wt% of furfural in the hydrolysate needs to be separated. In this study, a series of mixed matrix membranes (MMMs) were prepared by incorporating MIL-53(Al) particles (MAPs) into poly (ether-block-amide) (PEBA 2533) matrix for pervaporation separation of furfural from aqueous solutions. The MAPs with anisotropic morphology and tunable particle size were precisely synthesized by a high-efficiency solvent-controlled microwave synthetic strategy. Effects of MAPs on the microstructures, physicochemical properties of MAPs/PEBA MMMs were investigated in detail through SEM, EDS, XRD, FTIR, TGA, N 2 adsorption and contact angle measurements. The experimental results suggested that compared with the PEBA control membrane, the addition of MAPs notably reduced the permeation energy barrier for furfural, but not for water. The coin-like MAPs-16.7 filled MMMs presented the optimal separation performance, which exceeded other furfural-permselective membranes. Impressively, a high total flux of 3800 g∙m −2 ∙h −1 and an adequate furfural/water separation factor of 50.2 was achieved in PV separation of 1 wt% furfural aqueous solution at 80 °C, which could substantially reduce capital investment and equipment footprint. Furthermore, a continuous testing was operated for 200 h in ternary furfural/acetic acid/water simulated hydrolysate, highlighting the long-term membrane stability in realistic applications. High performance and long-term stability made MAPs/PEBA MMMs potential candidates for industrial furfural production.
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CERAMICS INTERNATIONAL
·
2020
·
IF 3.83
Wei Guo,Jing Hou,Tiesong Lin,Peng He
This study focused on joining high volume fraction SiC particles reinforced aluminum matrix composites (55 vol% SiC p /Al) with 50SnO–20ZnO–30P 2 O 5 (SZP) glass directly in air. Prior to joining, various properties of the SZP glass and its wettability on the composites were investigated. The results showed that the coefficient of thermal expansion of the glass was 10.58 × 10 -6 /°C (20–369 °C), which closely match with 55 vol% SiC p /Al composites. The glass transition, crystallization, and softening temperature were identified to be 369, 397, and 486 °C, respectively. Subsequent wetting tests confirmed excellent wettability of the glass on the composites. The joint exhibited sound bonding that was free of defects when brazed at 550 °C for 10 min Zn 2 P 2 O 7 was formed adjacent to the composites due to the crystallization of the glass. The mechanical properties of the joint were proven to be suitable, exhibiting an average shear strength of 55.3 MPa.
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