Nature Communications
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2025
·
IF 15.7
Li Hangren,Tu Jie,Du Siyuan,Xi Guoqiang,Liu Chen,Fang Yue-Wen,Xu Shuai,Zhang Jia-Han,Sun Enqi,Ouyang Shunli,Liu Xudong,Shi Longyuan,Liu Xiuqiao,Zheng Dongxing,Guo Lei,Zhang Xixiang,Jin Kuijuan,Tian Jianjun,Zhang Linxing,Xing Xianran
Developing an efficient and non-destructive stripping method suitable for most fragile freestanding films is essential for developing industrial semiconductor integration and flexible devices. Here, we propose a rapid stripping process of directional electrodynamic decomposition based on the conductive LaNiO 3 sacrificial layer, which can effectively overcome the surface tension during solution penetration. Notably, the release rate of oxide films can be increased to 600 mm 2 /min, which is two orders of magnitude more than that of traditional soaking method, ascribed to the improvement of the adsorption energy and electron transfer by the electric field. The electrodynamic stripping efficiency is not limited by thickness and area size of sacrificial layers and enables non-destructive and scalable fabrication of freestanding films. The crack-free 3-inch freestanding PbZrO 3 epitaxial membrane represents the largest ferroelectric-based membrane achieved to date, which enables its direct integration into flexible piezoelectric sensor array. Intriguingly, a record-breaking 12-inch polycrystalline membrane has been developed to address the requirements of industrial-scale semiconductor manufacturing. The strain-relaxed PbZrO 3 membranes exhibit the hysteresis loop of the antiferroelectric transition to ferroelectric. This electrodynamic approach with conductive sacrificial layer will greatly improve the stripping efficiency of high-quality functional freestanding membranes, thereby promoting their application in wafer-level electronic devices.
研究领域:
材料科学
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半导体技术
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柔性电子学
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铁电材料
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晶圆级制造
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产品关联
DOI
PubMed
高影响因子
Polymers
·
2024
·Vol. 16
·期 13
·1946
·
IF 4.7
Jing Fan,Yuting Pan,Dazhi Gao,Hongwei Qu
Deep eutectic solvents (DESs) are complex substances composed of two or three components, wherein hydrogen bond donors and acceptors engage in intricate interactions within a hydrogen bond network. They have attracted extensive attention from researchers due to their easy synthesis, cost-effectiveness, broad liquid range, good stability, and for being green and non-toxic. However, studies on the physical properties of DESs are still scarce and many theories are not perfect enough, which limits the application of DESs in engineering practice. In this study, twelve DESs were synthesized by using choline chloride and betaine as HBAs, and ethylene glycol, polyethylene glycol 600, o-cresol, glycerol, and lactic acid as HBDs. The variation rules of their thermal conductivity and viscosity with temperature at atmospheric pressure were systematically investigated. The experimental results showed that the thermal conductivity of the 1:4 choline chloride/glycerol solvent was the largest at 294 K, reaching 0.2456 W·m−1·K−1, which could satisfy the demand for high efficiency heat transfer by heat-transferring workpieces. The temperature–viscosity relationship of the DESs was fitted using the Arrhenius model, and the maximum average absolute deviation was 6.77%.
研究领域:
化学工程
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材料科学
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DOI
PubMed
高影响因子
JOURNAL OF CHEMICAL AND ENGINEERING DATA
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2023
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IF 2.6
Junning Shu,Peizhou Li,Xin Huang,Xiaowei Cheng,Na Wang,Hongxun Hao
In this work, the solubility of acetylcysteine in 12 pure solvents (water, methanol, ethanol, n-propanol, isopropanol, n-butanol, isobutanol, dimethylformamide, formamide, ethylene glycol, dimethylacetamide, and dimethyl sulfoxide) was determined using a dynamic method over the temperature range from 278.15 to 323.15 K. The results indicate that the solubility of acetylcysteine increases with increases in temperature. Furthermore, the solubility of acetylcysteine in alcohols decreases with decreasing polarity. These solubility data were compared with predictions generated using the modified Apelblat equation, the λh equation, the Wilson model, and the NRTL model. The modified Apelblat equation generated the most accurate values.
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DOI
高影响因子
JOURNAL OF CHEMICAL THERMODYNAMICS
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2022
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IF 3.269
Song Lin,Mingyi Xu,Mai Han,Houchun Yan,Yufan Pang,Qingsong Li
The liquid–liquid equilibrium (LLE) data of water + 1,2-Dimethoxyethane (DME) + {isopropyl ether, 1-hexanol, n-heptanol and 4-methyl-2-pentanol (MIBC)} was measured at 303.2 K under 101.3 kPa. The distribution coefficient (D) and selectivity factor (S) based on the experimental data were calculated, and use this to evaluate the extraction effect of the four solvents. Using two thermodynamic models of NRTL and UNIQUAC to fit the experimental data, and obtained the binary interaction parameters. The root means square deviation (RMSD) of the fitting results were all less than 0.75%. The GUI-MATLAB tools were applied to verify the consistency of the binary interaction parameters.
研究领域:
化学工程
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物理化学
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DOI
高影响因子
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
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2019
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IF 3.375
Xi Sun,Xi Liu,Yucai Qin,Li Qiang,Yu-Peng He,Dangsheng Su,Lijuan Song,Zhaolin Sun
A carbon supported carbon nitride is reported here as a catalyst for the direct conversion of acetylene and 1,2-dichloroethane (EDC) to vinyl chloride monomer (VCM). We demonstrate that increasing the synthesis temperature of the carbon nitride material leads to a catalyst with higher catalytic activity toward VCM production. The catalysts were characterized by acetylene temperature-programmed desorption, X-ray photoelectron spectroscopy, high-resolution TEM, electron energy loss spectroscopy, and computational methods, showing that the improved activity for the catalysts can be ascribed to both the higher proportion of pyridinic N and the more positive lowest unoccupied molecular orbital of the catalyst, resulting from the increased degree of polymerization of carbon nitride. These findings highlight the role of polymerization conditions in increasing the catalytic activity of carbon nitride catalysts and provide a strategy for the selective synthesis of highly active carbon nitride catalysts for the one-step synthesis of VCM from acetylene and EDC.
研究领域:
化学工程
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材料科学
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催化反应
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DOI
高影响因子
Journal of Energy Storage
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2025
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IF 9.8
Jialei Bao,Xiaowei Kang,Kehao Jin,Yuxiao Chu,Changchen Liu,Peng Zhang,Yongmiao Shen,Fu-Gang Zhao
The development of high-performance supercapacitor electrodes is pivotal for advancing next-generation energy storage systems. This study reports a cost-effective heterojunction material, reduced graphene oxide functionalized with the industrial dye Direct Yellow 12 (DY12-rGO-3), leveraging a π-π stacking strategy to achieve synergistic optimization of graphene-based supercapacitor electrode materials. In electrochemical tests using a three-electrode system, DY12-rGO-3 demonstrated a specific capacitance of 420 F g −1 . The fabricated flexible symmetric supercapacitor device achieved a remarkable balance of high energy density (18.3 Wh kg −1 at 799 W kg −1 ) and high power density (14.7 Wh kg −1 at 16 kW kg −1 ), along with excellent rate capability and cycling stability. This study provides an innovative approach for developing highly stable and high-energy-density flexible energy storage devices, highlighting the unique advantages of non-covalent functionalization strategies in the design of graphene-based materials.
研究领域:
材料科学
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能源存储
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产品关联
DOI
高影响因子
MICROCHIMICA ACTA
·
2017
·Vol. 184
·期 10
·3825-3831
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IF 4.58
Liu Xin,Wei Shigang,Diao Quanping,Ma Pinyi,Xu Longbin,Xu Shaomei,Sun Ying,Song Daqian,Wang Xinghua
Strongly blue fluorescent N-doped carbon dots (CDs) were synthesized by using citric acid (CA) as the carbon source and diethylenetriamine (DETA) as the nitrogen source using a one-step hydrothermal method. Several synthetic parameters, including the molar ratios of initial starting materials, the temperature and time of hydrothermal reaction, were investigated and optimized. The range and average value of the diameters of the resultant CDs were 1.2–4.0 nm and 2.3 nm, respectively. The synthesized CDs display fluorescence with excitation/emission maxima of 391/438 nm and a quantum yield of 58%. Fluorescence is quenched by Co(II) ions, and this effect was exploited to design a method for determination of Co(II) in water and to image it in living HeLa (cervical carcinoma) cells. The limit of detection and linear range of Co 2+ using the synthesized CDs as fluorescence probe are 0.4 μmol·L −1 and 0–90 μmol·L −1 , respectively. Due to the selective and sensitive response of Co 2+ , the CDs possess potential applications in biological labeling for the demands such as monitoring the distribution of vitamin B-12 or other cobalt-containing medicines in cells or organisms .
Strongly blue fluorescent N-doped carbon dots were synthesized using citric acid and diethylenetriamine by a one-step hydrothermal method, and were applied to the determination of vitamin B-12 in injection samples and imaging for living cells.
研究领域:
分析化学
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生物医学工程
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材料科学
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产品关联
DOI
高影响因子
JOURNAL OF SOLID STATE ELECTROCHEMISTRY
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2023
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IF 2.5
Feng Xingyi,Zeng Yingping,Yan Deen,Zou Hanbo,Yang Wei,Chen Shengzhou
Due to its high energy density and better safety performance, all-solid-state lithium batteries are regarded as important energy storage devices to replace the traditional liquid electrolyte Li-ion batteries. However, the problems of poor wettability of Li metal anode | solid-state electrolyte interface and easy growth of lithium dendrite have not been well solved. Here, we have constructed Fe-doped Li 7-3x Fe x La 3 Zr 2 O 12 (Fe-LLZO) and Li 6.5 La 3 Zr 1.5 Ta 0.5 O 12 (LLZTO) garnet-type double-layer solid electrolyte. The high density of Li 7-3x Fe x La 3 Zr 2 O 12 electrolyte and its interfacial wettability to Li metal not only effectively reduced the interface impedance between Li and solid electrolyte but also could stably cycle for more than 200 h without the growth of lithium dendrites at the rate of 0.1 mA cm −2 . In addition, the all-solid-state lithium battery (Li|Fe 0.1 -LLZO|LLZTO|LFP) with LiFePO 4 as a cathode also showed excellent cycle stability and C-rate performance.
研究领域:
材料科学
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电化学
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能源存储
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产品关联
DOI
高影响因子
JOURNAL OF CHEMICAL AND ENGINEERING DATA
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2023
·
IF 2.6
Siyuan Chen,Yanhong Wang,Xuemei Lang,Shuanshi Fan,Gang Li
This study examined the phase behavior of hydrogen hydrates with additives containing oxygen-containing groups. The phase equilibrium of the H2 + propylene oxide (PO) + water hydrate system and the H2 + 1,2-Epoxycyclopentane (ECP) + water hydrate system was measured using the isochoric pressure search method. The mole fractions of PO and ECP were 0.056 and 0.028, respectively. The experimental data were determined in the temperature range of 273.90 to 285.20 K and the pressure range of 3.18 to 18.57 MPa. In the presence of PO and ECP, the hydrate phase equilibrium of the systems moved to a lower pressure and a higher temperature region compared to that of the hydrogen hydrates without additives. The addition of ECP with a mole fraction of 0.056 had the best promotion effect among all reported sII-type thermodynamic additives. The data obtained in this study also showed that the equilibrium was affected by the ether (c–o–c) functional group in epoxy heterocycle compounds, which was the effective functional group in changing the equilibrium conditions of hydrogen hydrates. The results provided a basis for hydrogen storage and transportation based on hydrate technology.
研究领域:
化学工程
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能源科学
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产品关联
DOI
高影响因子
JOURNAL OF POLYMERS AND THE ENVIRONMENT
·
2023
·Vol. 31
·期 11
·4990-5002
·
IF 5.3
Wang Guoqiang,Hao Xingyu,Dong Yakun,Zhang Li
Bio-based poly(butylene succinate-co-dodecylene succinate) (PBDSs) were successfully synthesized by adjusting the content of 1,12-dodecanediol (DD) using melt polycondensation method. The chemical structure, thermal behavior, crystallization properties, mechanical properties, and rheological properties were characterized. FTIR, 1 H NMR, and 13 C NMR showed the successful synthesis of polymers with the expected structure. The synthesized polymers have high number-average molecular weight (32500–64200 g/mol). The copolyesters were random copolymers. The relationship between melting temperatures and composition was basically V-shaped distribution, which is a typical characteristic of isodimorphism behavior. Thermogravimetric analysis (TGA) showed that the thermal stability of the synthesized copolyesters was good, with no significant weight loss until 320 °C. The synthesized polymers were all semi-crystalline polymers. When the amount of dodecylene succinate unit in the product is 80%, the copolyester has good mechanical properties (tensile strength: 34.5 MPa, elongation at break: 3489%) and processing properties, so it may be more suitable for making films.
研究领域:
材料科学
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高分子化学
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产品关联
DOI
高影响因子
Science China-Chemistry
·
2019
·Vol. 62
·期 7
·851-858
·
IF 6.085
Zeng Guang,Zhang Jingwen,Chen Xiaobin,Gu Hongwei,Li Yaowen,Li Yongfang
The performance of flexible organic solar cells (OSCs) significantly relies on the quality of transparent flexible electrode. Here, we used silver nanowires (AgNWs) with various weight ratios to dope high-conductive poly(3,4-ethylenedioxythiophene): polystyrene sulfonate (PH1000) to optimize the optical and electronic properties of PH1000 film. A high-quality flexible composite electrode PET/Ag-mesh/PH1000:AgNWs-20 with smooth surface, a low sheet resistance of 6 Ω/sq and a high transmittance of 86% at 550-nm wavelength was obtained by doping 20 wt% AgNWs to PH1000 (PH1000:AgNWs-20). The flexible OSCs based on the PET/Ag-mesh/PH1000:AgNWs-20 electrode delivered a power conversion efficiency (PCE) of 12.07% with an open circuit voltage ( V oc ) of 0.826 V, a short-circuit current density ( J sc ) of 20.90 mA/cm 2 and a fill factor (FF) of 69.87%, which is the highest reported PCE for the flexible indium-tin oxide (ITO)-free OSCs. This work demonstrated that the flexible composite electrodes of PET/Ag-mesh/PH1000:AgNWs are promising alternatives for the conventional PET/ITO electrode, and open a new avenue for developing high-performance flexible transparent electrode for optoelectronic devices.
研究领域:
材料科学
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光电技术
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能源研究
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DOI
高影响因子
LWT-FOOD SCIENCE AND TECHNOLOGY
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2019
·
IF 3.714
Yali Jiang,Yu Lu,Youyi Huang,Shouwen Chen,Zhixia Ji
Caffeine is a major component of tea and coffee. Apart from the stimulatory effects, cumulative intake of caffeine has caused several diseases. In addition, the presence of caffeine brings out the deterioration of environmental pollution. Therefore, the demand for decaffeinated products, especially decaffeinated coffee and tea, is increasing. However, Pseudomonas putida as the most widely studied bacteria isn't suitable for producing decaffeinated tea and coffee due to the production of an unpleasant odor and endotoxins at the same time. A more appropriate system ( Bacillus amyloliquefaciens HZ-12: ndmABCDE ) is needed to produce decaffeinated products; and HZ-12: ndmABCDE was constructed by orderly integrating N -demethylase genes ( ndmABCDE ) in a safer strain HZ-12. Demethylases (NdmABCDE) in P. putida can degrade caffeine to xanthine, which was further degraded to CO 2 and NH 4 + by the purine metabolic pathway. Finally, HZ-12: ndmABCDE could degrade 52.6% of caffeine in the optimized medium, 31.5% higher than HZ-12; caffeine was demethylated in sequence to form theobromine, paraxanthine, 7-methylxanthine and xanthine; and there are no endotoxins and unpleasant odor. This study provides a safer strain (HZ-12: ndmABCDE ) for producing decaffeinated tea and coffee and a new idea that B. amyloliquefaciens HZ-12 can heterologously express the demethylase genes in P. putida .
研究领域:
微生物学
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生物技术
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环境科学
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DOI
高影响因子
危险品化学品经营许可证（带存储）