JOURNAL OF APPLIED POLYMER SCIENCE
·
2024
·Vol. 141
·期 22
·e55447
·
IF 2.7
Huawei Huang,Yiwen Hu,Xiuduo Song,Jian Kang,Dandan Chen
The development of thin-film nanocomposite (TFN) membranes with high performance is conducive to efficient desalination and wastewater treatment. In this work, dendritic mesoporous silica nanoparticles (DLSiO 2 ) were synthesized by a dual-templating strategy. Afterward, they were introduced into the aqueous phase to fabricate TFN membranes via in situ interfacial polymerization (IP) reaction. Powerful techniques as scanning electron microscopy, transmission electron microscopy, Fourier transform infrared spectroscopy, Nano zetasizer-DLS, x-ray photoelectron microscopy, electrokinetic analyzer, and contact angle were used in the characterization of dendritic structures and nanocomposite membranes. Results revealed that DLSiO 2 with special structural characteristics can effectively regulate the IP process, promoting the enhancement of the crosslinking degree, surface hydrophilicity, and surface negative charge of polyaimde (PA) selective layers. It is also beneficial for constructing extra water channels within the PA selective layer to boost the transport of water molecules. As a consequence, the prepared TFN membrane with 0.3 mg/mL DLSiO 2 exhibits optimal separation performance and good pressure resistance, acid–base resistance, and anti-fouling properties. It also exhibited a water permeability of 4.17 L m −2 h −1 bar −1 (increased by 61.7% compared with thin film composites (TFC) membrane) and a NaCl rejection of 99.0%, which were better than those of TFN membranes prepared by introducing other types of silica in other studies.
研究领域:
材料科学
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环境工程
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化学工程
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产品关联
DOI
高影响因子
INORGANIC CHEMISTRY
·
2022
·
IF 5.436
Jinhua Feng,Junnan Chen,Shuchang Wang,Miaomiao Jia,Zhiyu Zhang,Tongwen Yu,Ming Xue
Searching for the efficient and sustainable inhibitors to defend metal corrosion in the marine environment has received a great deal attention in both academia and industry. In this work, a new strategy was developed to encapsulate benzimidazole (BI) inhibitor guest molecules into the micropores of bio-MOF-1, which was constructed with the other natural adenine inhibitor. Electrochemical characterizations revealed that the slowly sustained release of BI and adenine inhibitors from the BI@bio-MOF-1 composite presented excellent anti-corrosion durability in the whole mild steel corrosion process. The impedance arc value attained approximately 5000 Ω·cm2 at initially 2 h and further increased to 6000 Ω·cm2 after 5 days immersion in 0.5 M NaCl solution, and the inhibition efficiency reached 85.36% due to the synergistic dual inhibitive effect of BI@bio-MOF-1 composite. The dual inhibition-based bio-MOF-1 composite equipped strong metal-chelating capability and response durability, exhibiting high potentiality for metal anti-corrosion applications.
研究领域:
材料科学
·
腐蚀工程
·
化学工程
✓ 已验证
DOI
高影响因子
CORROSION SCIENCE
·
2025
·
IF 8.5
Fei Xue,Yutong Hou,Jihui Wang,Wenbin Hu,Feixiong Mao,Liping Wang
Zn 1- x La x O film was prepared on SS304 steel surface by using hydrothermal method combined with the following heat treatment. The morphology, structure, composition, oxygen vacancy concentration and semiconductor type of film were determined. The corrosion resistance and resistive switching properties of film were analyzed by electrochemical tests and polarization-immersion experiments. The oxygen vacancy formation energy, surface adsorption energy and diffusion energy barrier of films were calculated by density functional theory (DFT). The experimental results show that the polarization treatment enables Zn 1- x La x O films switch between high and low resistance states cyclically and stably, and the excellent corrosion resistance and durability are achieved through resistive switching behavior of films. Polarization treatment can reduce the formation energy and diffusion barrier of oxygen vacancies, promoting the formation of oxygen vacancy conductive filaments in the thin film. Regulating the formation and fracture of oxygen vacancy conductive filaments can achieve cyclic switching between high and low resistance states. The film is in a state of constant repair, preventing the invasion of corrosive media through the formation and annihilation of oxygen vacancies, which provides a novel corrosion protection strategy.
研究领域:
材料科学
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电化学
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理论计算
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产品关联
DOI
高影响因子
SOLAR ENERGY MATERIALS AND SOLAR CELLS
·
2022
·
IF 7.305
Xiangyang Liu,Zeyang Kang,Jiahao Zhao,Shaoxuan Huang,Ying Zhang,Maogang He
Coupling with supercritical power cycle can improve the thermal efficiency of the concentrated solar system. Design the suitable thermal storage medium is critical to the new coupling system. A new ternary eutectic salt with low cost was developed composed of NaCl , Na 2 CO 3 , and Na 2 SO 4 based on the calculation method of phase diagram , meeting the requirements of solar energy storage over 873 K. The eutectic point and composition of the designed salt were predicted to be 900 K and 50 mol% NaCl-35 mol% Na 2 CO 3 -15 mol% Na 2 SO 4 . The designed salt shows high specific heat capacity and phase-change enthalpy, and low cost, which indicates it has good thermal storage capacity. Composite phase change materials with multi-walled carbon nanotubes and graphene nanosheets which can enhance the thermal conductivity and heat capacity of designed salt were prepared. The effects of preparation methods on the thermophysical properties of the composite phase change materials were analyzed.
研究领域:
材料科学
·
能源工程
✓ 已验证
DOI
高影响因子
JOURNAL OF SOLID STATE ELECTROCHEMISTRY
·
2021
·Vol. 26
·期 2
·449-456
·
IF 2.647
Liu Shanshan,Li Chenyao,Wang Dongxin,Li Junyi,Yuan Rui,Che Yusi,He Jilin,Song Jianxun
In this research, the reduction mechanism of Nb(V) under various [F − ]/[Nb n+ ] ratios ( α ) was investigated by a series of electrochemical techniques, such as square wave voltammetry (SWV) and chronopotentiometry (CP). We previously studied the electrode reduction process of Nb(V) and revealed that was Nb(V) → Nb(III) → Nb(I) → Nb in NaCl-KCl molten salt. It was found in this research that the electrode reduction process of Nb(V) ion was shortened to Nb(V) → Nb(III) → Nb when α was equal to 1.0; furthermore, the electrode reduction process of Nb(V) ion transforms to Nb(V) → Nb(IV) → Nb when α was greater than or equal to 5.0. Moreover, the reaction mechanism was also discussed in this work. Metallic niobium was collected on a molybdenum electrode under the condition of higher fluoride content after electrolysis in the melt.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
Polymers
·
2024
·Vol. 16
·期 15
·2231
·
IF 4.7
Xiao Wang,Zhen Li,Xiaojing Wu,Bingjie Liu,Tian Tian,Yi Ding,Haibo Zhang,Yuanli Li,Ye Liu,Chunai Dai
Solar energy, as a clean and renewable energy source, holds significant promise for addressing water shortages. Utilizing solar energy for water evaporation is seen as an effective solution in this regard. While many existing interfacial photothermal water evaporation systems rely on nanoparticles or graphene as photothermal or support materials, this study introduced polydopamine (PDA) as a photothermal material due to its environmental friendliness and excellent photon absorption characteristics that closely match the solar spectrum. Polystyrene (PS) was also introduced as a support material for its porous structure and density similar to water, enabling it to float on water. The resulting PS-PDA composite porous structure solar evaporator exhibited a photothermal conversion efficiency comparable to nanoparticles (over 75%), yet with lower production costs and minimal environmental impact. This innovative approach offers a scalable solution for water-scarce regions, providing a cost-effective and efficient means to address water scarcity. The use of PDA and PS in this context highlights the potential for utilizing common materials in novel ways to meet pressing environmental challenges.
研究领域:
材料科学
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环境科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
FOOD CHEMISTRY
·
2026
·
IF 10.4
Fengyang Wang,Panpan Liu,Yin Chen,Mengjuan Li,Yunlong Liu,Yan Qi,Xiaohui Xiong,Yuanjian Liu
Firstly, through various analytical methods, the mechanism by which the electrocatalytic oxygen reduction capacity of E. coli O157:H7 was enhanced under 4% NaCl stress was revealed. The cyclic voltammetry (CV) results indicated that the oxygen reduction ability of E. coli O157: H7 was improved under NaCl stress. Microbiological analysis confirmed the intracellular ROS levels in E. coli O157: H7 under NaCl stress is related to the upregulation of SOD/CAT activity. Metabolomics identified key metabolic adaptations in E. coli O157:H7, including enhanced tricarboxylic acid (TCA) cycles and ubiquinone (Q) biosynthesis, which promoted effective respiratory electron transfer in the bacteria. Secondly, the BPE-ECL (Bipolar Electrochemiluminescence) sensor designed based on 4% NaCl stress showed 9.72 times increase in anode ECL intensity. The detection limit was extremely low at 10 CFU for E. coli O157:H7 in 1 mL sample volume. This research provides a new solution for the sensitive screening of electrochemically active bacteria.
✓ 已验证
DOI
PubMed
高影响因子
Journal of Environmental Chemical Engineering
·
2025
·
IF 7.2
Jing Pan,Wenhao Li,Yongde Yan,Xuepeng Wang,Sihao Wang,Yun Xue,Fuqiu Ma,Kai Zhu,Wei Liu
Effective extraction of lanthanum (La) from spent nuclear fuel is crucial for promoting the sustainable use of nuclear energy. Liquid aluminum (Al) electrode shows significant advantages as active cathodes in the electrochemical extraction of lanthanides (Ln). However, the electrolytic reduction of La by liquid Al in NaCl-KCl melt has not received adequate attention and understanding. For this reason, the electrochemical recovery of La from NaCl-KCl melt using a liquid Al cathode has been investigated in this paper by a series of electrochemical methods. The results indicate that the reduction of La(III) on the W electrode occurs as a one-step process and the reaction is irreversible. The diffusion coefficient of La(III)/La was determined to be 6.70×10 -5 cm 2 s -1 . Meanwhile, the co-reduction process of La(III) and Al(III) on the W electrode was systematically investigated to explore the potential for forming binary intermetallic compounds. In addition, the exchange current density (0.025-0.030 A cm -2 ) at different temperatures was determined using linear polarization (LP), further elucidating the temperature dependence of the exchange current density. Finally, La was successfully extracted as an alloy by potentiostatic electrolysis on the Al electrode. This study provides promising insights for the extraction of La in NaCl-KCl melt on liquid Al electrode.
研究领域:
材料科学
·
核能工程
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
ENERGY & FUELS
·
2025
·
IF 5.3
Junjie Ren,Siyu Zeng,Yunting Liu,Chenlu Xu,Hongfeng Lu,Jianzhong Zhao,Praveen Linga,Zhenyuan Yin
Hydrate-based CO2 sequestration in marine sediments has emerged as a promising strategy to mitigate global climate change due to its substantial storage capacity and operational feasibility. However, understanding the influence of chloride salts from seawater, such as KCl, NaCl, CaCl2, and MgCl2, on CO2 hydrates phase stability is essential for the practical application of subsea CO2 sequestration as hydrates. This study systematically investigates the phase equilibria of CO2 hydrates in KCl, NaCl, CaCl2, and MgCl2 solutions at concentrations of 0–400 mM, encompassing typical marine salinity conditions. The experimental results demonstrate that all four chloride salts exhibit thermodynamic inhibition effects on CO2 hydrates, with the inhibitory effect intensifying as concentration increases. MgCl2 exerts the strongest thermodynamic inhibition effect, suppressing CO2 hydrates equilibrium temperature by 0.96 K at 200 mM and 1.57 K at 400 mM concentrations under 3.0 MPa. The inhibition strength follows the order of MgCl2 > CaCl2 > NaCl > KCl, which correlates well with the ion charge and radius of cations. A thermodynamic model was developed by integrating the Hu-Lee-Sum correlation of water activity with the classical Chen-Guo model for the prediction of the thermodynamic phase equilibria for CO2 hydrates. The proposed model demonstrates high accuracy, with an average absolute deviation of pressure below 2.0% across all tested concentrations. Validation against experimental data and literature values confirms the reliability of the model and serves as a prediction tool for CO2 hydrates phase equilibria with chloride salts. This study advances the understanding of CO2 hydrates thermodynamics in saline systems, elucidating the inhibitory effects of chloride salts and the associated impact on CO2 hydrates stability. The findings provide the thermodynamic foundation for the near-future large-scale adoption of hydrate-based CO2 sequestration.
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产品关联
DOI
高影响因子
ELECTROCHIMICA ACTA
·
2025
·
IF 5.6
Yan Zhao,Haoyu Fang,Liguo Zhu,Lingxin Kong,Bin Yang,Baoqiang Xu,Lei Gao
As the mainstream method for titanium processing, the Kroll process has excessive carbon emissions and high energy consumption due to its reliance on fossil fuels and lengthy semi-continuous process, which not only hinders the implementation of “dual-carbon” goals, but also leads to high production costs. In contrast, molten salt electrolysis achieves direct electrochemical reduction, significantly reducing energy consumption and pollution emissions while reducing costs, in line with the needs of green and sustainable manufacturing. The USTB method represented by soluble anode electrolysis process, is a green and low-cost new process for titanium extraction. However, this method uses NaCl-KCl as the molten salt medium, and faces the problem that it is difficult to control the oxygen content of titanium. In this study, a new method for the preparation of low-oxygen titanium by synergistic electrolysis and thermal deoxidation in NaCl-KCl-YCl 3 was proposed. It can be seen from the thermodynamic calculations that the activity of O 2− in the molten salt can be effectively reduced by the formation of YOCl. Under the equilibrium of Y / YOCl / YCl 3 (Y 3+ (in flux) + O 2- (in flux) + Cl − (in flux) = YOCl), the deoxidation limit is 1000 ppm. The experimental results show that the metal titanium with oxygen content of 700 ppm can be prepared by molten salt electrolysis and thermal deoxidation with TiC x O y as anode, Mo as cathode in NaCl-KCl-YCl 3 molten salt. This work provides a novel strategy for the preparation of low-oxygen titanium based on soluble anode electrolysis.
研究领域:
材料科学
·
冶金工程
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2023
·Vol. 34
·期 33
·2187
·
IF 2.8
Liao Bo-Kai,Zhou Zong-Yi,Luo Zhi-Gang,Wu De-Quan
In this work, the corrosion behavior of Sn-3.0Ag-0.5Cu (SAC305) tin-based solder alloy at relatively lower temperature is firstly investigated using electrochemical methods. Effects of temperature and sodium chloride (NaCl) concentration on the corrosion behavior are discussed in detail. Results indicate that the anti-corrosion ability decreased when temperature rising at the same NaCl concentration. On the other hand, the corrosion resistance of SAC305 alloy increased with a lager chloride concentration at relatively lower temperatures, whereas the opposite conclusion was reached at high temperatures. X-ray diffraction meter (XRD) and scanning electron micrograph (SEM) studies revealed that at low temperature, chloride ion reacted with SAC305 alloy forming insoluble basic tin chloride with tin alloy, which covered on metal surface and inhibited corrosion process. However, this process is disrupted at relatively higher temperatures due to chloride ions attacked the tin-oxide protective film on the metal surface, further promoting pitting corrosion. Relevant mechanism has been proposed to clarify the roles of temperature and NaCl concentration in the corrosion process for SAC305 alloy in NaCl solution.
研究领域:
材料科学
·
腐蚀工程
·
电化学
·
电子材料
✓ 已验证
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2016
·
IF 3.782
Yujie Qiang,Shengtao Zhang,Shenying Xu,Wenpo Li
Corrosion experiments and theoretical calculations were performed to investigate the inhibition mechanism of indazole (IA) and 5-aminoindazole (AIA) for copper in NaCl solution. The results obtained from weight loss and electrochemical experiments are in good agreement, and reveal that these compounds are high-efficiency inhibitors with inhibition efficiency order: AIA > IA, which was further confirmed by field emission scanning electronic microscope (FESEM) observation. Besides, the quantum chemical calculations and molecular dynamics (MD) simulation showed that both studied inhibitors are adsorbed strongly on the copper surface in parallel mode. The adsorption of these molecules on copper substrate was found to obey Langmuir isotherm .
研究领域:
腐蚀科学
·
材料化学
·
电化学
·
理论化学
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）