CORROSION SCIENCE
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2025
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IF 8.5
Shiyao Du,Dongfang Jia,Lingwei Ma,Dawei Zhang
The coupling effect of adipic acid and NaCl on electrochemical migration (ECM) of SAC305 solder alloy for printed circuit boards was studied using a self-designed high-throughput preparation and electrochemical test platform. The promotion effect of 1000 ppm NaCl on anodic dissolution and ion migration steps in the electrochemical migration substantially increased the dendrite formation probability ( P dendrite ) of SAC305 solder alloy. The low P dendrite in 1000 ppm adipic acid was attributed to the enhanced resistance to ion migration step by the formation of complex precipitates. Adding 1 ppm adipic acid into 1000 ppm NaCl could effectively decrease P dendrite due to the co-formation of hydroxide and complex precipitates, while increasing adipic acid concentration (from 10 ppm to 1000 ppm) instead raised P dendrite because hydroxide precipitates could transform into dendrite source at the cathode.
研究领域:
材料科学
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电化学
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电子材料
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腐蚀科学
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产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
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2025
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IF 13.2
Wenxuan Zhao,Ying Xu,Wenna Liu,Xiang Wang,Zhaoyou Zhu,Yinglong Wang,Peizhe Cui,Guoxuan Li
Imidazolium-based ionic liquids (ILs) were explored for the first time to capture C4 alcohol aldehyde isomer VOCs. The suitable IL was screened with viscosity, solubility, and selectivity as indicators by COSMO-SAC model. The absorption experiment showed that [BMIM][TFO] had excellent absorption capacity compared with [EMIM][TFO], and the average absorption rate was increased by 3.51 %. Quantum chemical analysis and molecular dynamics simulations have clarified the dual interaction mechanism of the process, that is, the cation binds to the alcohol/aldehyde through van der Waals force and hydrogen bond, while the anion interacts with the aldehyde through van der Waals force. The process simulation shows that using [BMIM][TFO] can reduce the amount of absorbent by 26.26 % compared with [EMIM][TFO] absorbent. This work provides a theoretical basis for the design and process optimization of C4 alcohol and aldehyde isomers VOCs capture absorbents and expands the application range of ILs in chemical waste gas treatment.
研究领域:
化学工程
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环境科学
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物理化学
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材料科学
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产品关联
DOI
高影响因子
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
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2021
·Vol. 21
·期 9
·4586-4595
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IF 0
Wang Yun,Chen Zhangjian,Chen Shi,Zhuo Lin,Zhao Lin,Jia Guang
Titanium dioxide nanoparticles (TiO2 NPs) as food additives were widely found in various foodrelated products, especially in high-sugar foods. The daily intake of TiO2 NPs in the diet may therefore expose the small intestine to TiO2 NPs and affect its
physiological functions, including the absorption of nutrients. It is speculated that TiO2 may cause serious health hazards by increasing sugar uptake. To explore this possibility, transport of glucose from small intestine was studied using an everted gut sac model prepared from
small intestine of young healthy male SD rats. The translocation of TiO2 NPs and the morphological changes of small intestine were also observed after exposure of intestinal lumen to TiO2 NPs for 2 h. The results showed that TiO2 NPs can enter into enterocyte
but hardly cross the intestinal epithelium. No change on microstructure of gut epithelia and expression of glucose transporter was found, and there is no obvious impact on intestinal absorption and metabolism of glucose. These results suggest that short-term exposure to TiO2 NPs
has little influence on intestinal absorption of glucose. More attention should be paid to the chronic effect of dietary consumption of TiO2 NPs on nutrient absorption.
研究领域:
纳米技术
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营养科学
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毒理学
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DOI
PubMed
APPLIED CATALYSIS B-ENVIRONMENTAL
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2023
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IF 22.1
Kexin Yin,Yanan Shang,Dongdong Chen,Baoyu Gao,Qinyan Yue,Xing Xu
Versatile persulfate-based catalytic mechanisms induced by highly-effective single atom catalysts (SACs) have been intensively reported, which was mainly ascribed to the versatile coordinated-structures of SACs. However, the origin of these different mechanisms from the specific properties of pollutants has been ignored. In this work, eight kinds of pollutants were selected and the half-wave potential (φ 1/2 ) values representing their redox potentials were determined. A good correlation between the redox potential characteristics of pollutants and their oxidation performances/pathways in manganese single-atom catalyst (Mn-SAC)/PMS system can be confirmed. The φ 1/2 values of different pollutants showed a good correlation with the energy gaps between the pollutants and Mn-SAC/PMS complexes as well as their electrophilicity indexes, which confirmed the redox potential of pollutants was essential to the electron-transfer oxidation in Mn-SAC/PMS system. Based on the new insights in this work, we will be able to unveil the sources of Fenton-like systems with tunable oxidation processes.
研究领域:
环境科学
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催化化学
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产品关联
DOI
高影响因子
JOURNAL OF MOLECULAR LIQUIDS
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2020
·
IF 5.065
Haixia He,Yameng Wan,Jiao Sha,Renren Sun,Gaoliang Jiang,Yu Li,Tao Li,Baozeng Ren
This research was focusing on determining the solid-liquid equilibrium solubility of exo-3,6-epoxy-1,2,3,6-tetrahydrophthalic acid anhydride (exo-5,6-dehydronorcantharidin) in thirteen mono-solvents by using laser monitoring approach at diverse temperature and pressure “ p = 0.1 MPa”. The results showed that the solubility data of exo-5,6-dehydronorcantharidin in all solvents was positively correlated with experimental temperature. Besides, the mole-fraction solubility values of exo-5,6-dehydronorcantharidin in all considered solvents at “ T = 298.15 K” were found maximum in N -methyl-2-pyrrolidinone (0.184) followed by N , N -Dimethylformamide (0.150), acetone (0.0629), acetonitrile (0.0508), methyl acetate (0.0420), 1,4-dioxane (0.0342), ethyl acetate (0.0275), n -propyl acetate (0.0210), isopropyl acetate (0.0191), butyl acetate (0.0172), isobutyl acetate (0.0165), amyl acetate (0.0137) and isoamyl acetate (0.0129). The polarity and Hansen solubility parameter of studied solvents were employed to reveal the affinity and solubility order of exo-5,6-dehydronorcantharidin, and the results indicated that the miscibility between solute and solvent relied on comprehensive effects of multiple factors. Moreover, the obtained solubility data was correlated with Wilson, NRTL, UNIQUAC and NRTL-SAC model. The correlation results showed that the UNIQUAC model can provide the best fitting effect with lower values of average relative deviation (ARD) and root-mean square deviation (RMSD). Finally, thermodynamic mixing and dissolution properties of exo-5,6-dehydronorcantharidin in thirteen neat solvents were calculated based on UNIQUAC model as well as experimental values.
研究领域:
化学工程
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物理化学
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热力学
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DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
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2022
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IF 9.136
Jianguang Qi,Yajuan Qu,Mengjin Zhou,Zihao Su,Xiaoying Zhang,Ranran Wei,Ke Xue,Zhaoyou Zhu,Fanqing Meng,Yinglong Wang
Deep eutectic solvents (DESs) exhibit good separation performance as extractants in extractive distillation. In this study, choline chloride (ChCl)-based and tetrabutylammonium bromide (TBAB)-based DESs were prepared using ChCl and TBAB as hydrogen bond acceptors (HBAs) and urea, glycerol (G), malonic acid (MA), and levulinic acid (LA) as hydrogen bond donors (HBDs). Based on the COSMO-SAC model, the possibility of separating the binary azeotropes of methanol (MeOH) and dimethyl carbonate (DMC) using five DESs was verified. The binary azeotropes of MeOH and DMC were separated by extractive distillation using five DESs, and their separation performance was investigated. The experimental results revealed that ChCl-urea had the best separation effect on the binary azeotropes MeOH and DMC. The macroscopic separation phenomenon and microscopic molecular mechanisms were studied systematically. The interaction of the DESs with MeOH and DMC was investigated at the molecular level by quantum chemical (QC) calculations, and the important role of the hydrogen bond of the DESs in extractive distillation was revealed. The experimental and QC results demonstrate that DESs have a significant effect on the intermolecular forces and can effectively separate azeotropes.
研究领域:
化学工程
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物理化学
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分离科学
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产品关联
DOI
高影响因子
ACS Nano
·
2022
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IF 18.027
Bowen Liu,Ruohan Feng,Michael Busch,Sihong Wang,Haofei Wu,Pan Liu,Jiajun Gu,Ashkan Bahadoran,Daiju Matsumura,Takuya Tsuji,Di Zhang,Fang Song,Qinglei Liu
Pt single-atom materials possess an ideal atom economy but suffer from limited intrinsic activity and side reaction of producing H2O2 in catalyzing the oxygen reduction reaction (ORR); platinum alloys have higher intrinsic activity but weak stability. Here, we demonstrate that anchoring platinum alloys on single-atom Pt-decorated carbon (Pt-SAC) surmounts their inherent deficiencies, thereby enabling a complete four-electron ORR pathway catalysis with high efficiency and durability. Pt3Co@Pt-SAC demonstrates an exceptional mass and specific activities 1 order of magnitude higher than those of commercial Pt/C. They are durable throughout 50000 cycles, showing only a 10 mV decay in half-wave potential. An in situ Raman analysis and theoretical calculations reveal that Pt3Co core nanocrystals modulate electron structures of the adjacent Pt single atoms to facilitate the intermediate absorption for fast kinetics. The superior durability is attributed to the shielding effect of the Pt-SAC coating, which significantly mitigates the dissolution of Pt3Co cores. The hybridizing strategy might promote the development of highly active and durable ORR catalysts.
研究领域:
材料科学
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电化学
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催化
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产品关联
DOI
PubMed
高影响因子
JOURNAL OF MOLECULAR LIQUIDS
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2022
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IF 6.633
Yameng Wan,Haixia He,Pengshuai Zhang,Fanfan Li,Xiaoqiang Gao,Yanxun Li
Solubility behavior as a significant molecular property should be known in the field of crystal form screening, dosage form along with separation and purification in the pharmaceutical industry. In this research work, solubility data of 2-chloronicotinamide (2-CNA) in ten pure solvents including methanol (MeOH), ethanol (EtOH), ethylene glycol (EG), 2-methoxyethanol (EGME), 2-ethoxyethanol (EGEE), methyl acetate (MeAc), water, 1,4-dioxane (Diox), N,N-dimethylformamide (DMF) and N,N-dimethylacetamide (DMAC) within the range of 278.15/288.15 K to 323.15 K was experimentally determined by laser monitoring method at 0.1 MPa. Solubility of 2-CNA presented a positive correlation with temperature, and increased with incremental temperature. The result was indicative of a common tendency: DMAC > DMF > EGME > EGEE > EG > MeOH > Diox > EtOH > MeAc > water. The solvation free energy, molecular electrostatic potential surface (MEPS) and Hirshfeld surface were used to study the intermolecular interactions. Moreover, six mathematical models namely “Margules, UNIQUAC, NRTL, Wilson, NRTL-SAC and Jouyban model” were utilized to correlate solubility data of 2-CNA in mono-solvents. UNIQUAC model could provide maximum regression accuracy in correlation with solubility data among six models in terms of average relative deviation (ARD) and root mean square deviation (RMSD). Finally, thermodynamic parameters obtained from UNIQUAC equation indicated that all dissolution and mixing process were always entropy-increasing, endothermic and spontaneous.
研究领域:
药学化学
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物理化学
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分子模拟
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热力学
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产品关联
DOI
高影响因子
JOURNAL OF MOLECULAR LIQUIDS
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2021
·
IF 6.165
Lei Yuan,Zidan Cao,Renren Sun,Haixia He,Yiming Ren,Huimin Niu,Tao Li,Baozeng Ren
A novel antiepileptic drug of topiramate (TPM) has remarkably boosted the human health to against epilepsy. Herein, the solubility of TPM was measured in fourteen mono-solvents through a method of laser monitoring at temperatures from 278.15 to 323.15 K in this work. Moreover, the electrostatic potential surfaces and quantum chemistry calculation at molecular level were applied to explain the solubility differences. The multiple factors such as the polarity of solvent, active sites interaction, the molecular size and free volume all affect the solubility of TPM. Not only the solubility data of TPM were obtained, but also the thermodynamic properties of TPM in various solvents were studied. The solid–liquid phase equilibrium solubility of TPM was regressed and corrected by five thermodynamic models including λ-h, NRTL, NRTL-SAC, UNIQUAC models and modified Apelblat equation, and the classical van't Hoff equation was employed to analyze the thermodynamic properties during the process of TPM dissolution. This research will provide basic data for the production of TPM in the pharmaceutical industry.
研究领域:
药物化学
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物理化学
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热力学
·
分子模拟
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产品关联
DOI
高影响因子
JOURNAL OF MOLECULAR LIQUIDS
·
2020
·
IF 5.065
Renren Sun,Yueru Wang,Haixia He,Yameng Wan,Liyuan Li,Jiao Sha,Gaoliang Jiang,Yu Li,Tao Li,Baozeng Ren
Solubility of melatonin in twelve mono-solvents including seven alcohols {methanol (MT), ethanol (ET), n -propanol ( n -PrA), n -butanol ( n -BT), i -butanol ( i -BT), n -pentanol ( n -PT) and n-hexanol ( n -HeA)} and five esters {methyl acetate (MeAC), ethyl acetate (EtAC), n -propyl acetate ( n -PrAC), n -butyl acetate ( n -BtAC) and n -pentyl acetate ( n -PtAC)} was determined by laser monitoring approach from 278.15 K to 323.15 K under 0.1 MPa. The experimental results indicate that the mole solubility of melatonin shows a positive relation with temperature variation. The solubility of melatonin in the twelve pure solvents at 298.15 K has order: MT (0.03570) > ET (0.02536) > n -PrA (0.01965) > n -BT (0.01524) > n -PT (0.01450) > i -BT (0.01267) > n -HeA (0.01136) > MeAC (0.008498) > EtAC (0.006587) > n -PrAC (0.004280) > n -BtAC (0.003410) > n -PtAC (0.02990). Moreover, the miscibility behavior of melatonin was further analyzed by the Hansen solubility parameter (HSP). The solvent effect of melatonin in tested pure solvents was investigated by using the KAT-LSER model. The four thermodynamic models including two-Suffix Margules, NRTL, NRTL-SAC and UNIQUAC models were applied to correlate the experimental solubility data of melatonin. Furthermore, the dissolution thermodynamic properties including the apparent standard dissolution enthalpy (Δ dis H o ), the apparent standard dissolution entropy (Δ dis S o ) and the apparent standard Gibbs energy change (Δ dis G o ) of melatonin in investigated solvents were calculated by van't Hoff equation.
研究领域:
药学
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物理化学
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热力学
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材料科学
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DOI
高影响因子
FLUID PHASE EQUILIBRIA
·
2019
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IF 2.514
Yameng Wan,Haixia He,Pengshuai Zhang,Rui Zhao,Jiao Sha,Tao Li,Baozeng Ren
Mole-fraction solubility of 5-norbornene-2,3-dicarboximide (NODI) in eleven solvents including methanol (MtOH), ethanol (EtOH), 2-ethoxyethanol, methyl acetate (MAC), ethyl acetate (EAC), n-propyl acetate (NPAC), isopropyl acetate (IPAC), n-butyl acetate (NBAC), acetone (DMK), N,N-dimethylformamide (DMF) at (278.15–323.15) K and 1,4-dioxane at (288.15–323.15) K was experimentally measured by laser monitoring technique under 0.1 MPa. Solubility of NODI increased with the increasing temperature. Hansen Solubility Parameter was employed to explain the solubility behavior. The Kamlet-Taft parameters were calculated to investigate the solvent effect based on linear solvation energy relationships concept. Thermodynamic modeling including the Two-Suffix Margules model, Wilson model, NRTL model, NRTL-SAC model and UNIQUAC model were employed to correlate the experimental solubility. Wilson model and NRTL-SAC model were more suitable in correlation with solubility data. Furthermore, thermodynamic properties of mixing process (Δ mix G , Δ mix H , Δ mix S , ln γ 1 ∞ , H 1 E,∞ , ζ TS and ζ H ) were discussed based on Wilson equation.
研究领域:
化学工程
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物理化学
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热力学
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DOI
高影响因子
JOURNAL OF CHEMICAL THERMODYNAMICS
·
2020
·
IF 2.888
Renren Sun,Haixia He,Yameng Wan,Yueru Wang,Liyuan Li,Jiao Sha,Gaoliang Jiang,Yu Li,Tao Li,Baozeng Ren
For further study on solubility behaviors of melatonin (MT), the solubility of MT in the three mono-solvents {N, N-dimethylformamide (DMF), 2-methoxyethanol, 2-ethoxyethanol} and four binary solvents {(DMF, 2-methoxyethanol, 2-ethoxyethanol and methanol) + ethyl acetate} was measured in a range of 278.15 K–323.15 K by laser monitoring method. The measurement results showed that MT solubility in all tested solvents increased with rising temperature. In binary solvents except methanol + ethyl acetate, the solubility values of MT had a positive relationship with the mass fraction of co-solvents. In methanol + ethyl acetate, the solubility of MT initially increased, followed by a decrease (with the rising mass fraction of methanol) and arrived the highest solubility value at a mass fraction of methanol being 0.4000. The Hansen solubility parameters (HSPs) were applied to study the solubility behaviors of MT in tested solvents. Moreover, in three pure solvents, the measured solubility data of MT was correlated by (NRTL-SAC, NRTL, two-Suffix Margules, UNIQUAC models and modified Apelblat equation). In binary solvents, the solubility data was fitted by (three-Suffix Margules, λh equation, Yaws model equation and modified Apelblat equation). Furthermore, the apparent thermodynamic properties were calculated based on the van’t Hoff equation. The positive values of apparent standard dissolution enthalpy and entropy suggest that the dissolution process of MT in all of chosen solvents is entropy-driven and endothermic. The larger values of ζ H than ζ TS represent that the main contributor of Δ dis G o in all investigated solvents is enthalpy.
研究领域:
化学工程
·
物理化学
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药学
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产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）