JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
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2021
·Vol. 30
·期 2
·1567-1576
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IF 1.819
Ma Jingling,Jia Xingliang,Ma Mingsheng,Zhang Chenfei,Ren Fengzhang,Wang Guangxin
To limit corrosion and retain activity of magnesium anode, magnesium–air batteries with double solutions: 0.5 M Mg(ClO 4 ) 2 - N , N -dimethylformamide (DMF)/0.6 M NaCl-H 2 O, 0.5 M Mg(ClO 4 ) 2 –acetonitrile (AN)/0.6 M NaCl-H 2 O are prepared. Cathodic and anodic reactions proceed in inorganic and organic solutions separately. Discharge performance, discharge morphology, and corrosion behavior of magnesium anode are researched. Results obtained show that organic electrolytes separate anode from the aqueous electrolyte, thus improving anode utilization rate. Due to 0.6 M NaCl solution used in air cathode side, the batteries show higher discharge voltages. A better discharge performance has been observed in double electrolytes at 1 mA·cm −2 discharge. Results of discharge morphology and electrochemical impedance spectroscopy agree well with discharge performance. The discharge mechanism of magnesium anode in different solutions is also discussed.
研究领域:
材料科学
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电化学
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DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2013
·
IF 2.108
Xinlin Liu,Peng Lv,Guanxin Yao,Changchang Ma,Yangfeng Tang,Yuting Wu,Pengwei Huo,Jianming Pan,Weidong Shi,Yongsheng Yan
The modified NaCl/TiO 2 photocatalyst of selected degradation was synthesized by surface molecular imprinted technology with ciprofloxacin (CIP) as the molecular template. The acrylamide (AM), trimethylolpropane acrylate (TMPTA), and 2,2-azobisisobutyronitrile (AIBN) were considered to be functional monomer, cross-linking and initiate reagents, respectively. The as-prepared photocatalysts were characterized by X-ray diffraction (XRD), UV–vis diffuse reflectance spectra (UV–vis DRS), transmission electron microscopy (TEM), scanning electron microscopy (SEM), thermal gravimetry (TG) and Fourier transform infrared (FT-IR). Compared with the non-imprinted photocatalyst, the molecular imprinted photocatalyst exhibits higher selectivity and photo-degradation capacity for CIP. The degradation ratio of CIP could reach 70.90% in 60 min under visible irradiation. The selectivity of the MIP photoctalyst enhanced the photocatalytic activity to CIP.
研究领域:
环境科学
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材料科学
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DOI
高影响因子
JOM
·
2022
·Vol. 74
·期 5
·1889-1899
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IF 2.597
Zhu Qiang,Yang Jianguang,Tang Chaobo,Nan Tianxiang,Ding Ruize,Liu Jiang
This work proposes a novel nitrogen bottom-blowing method to enhance mass transfer in the molten salt electrolysis process, improve current efficiency, and reduce electrolysis energy consumption. The effect of nitrogen agitation on the dissolution of Sb 2 S 3 and Sb was studied. The effects of nitrogen flow rate, electrolytic temperature, cell voltage, and pole spacing on the distribution behavior of Sb during constant piezoelectric reduction were investigated. The results show that nitrogen agitation can obviously accelerate the dissolution of Sb 2 S 3 . The current efficiency of the cathode reaches 92.76%, the energy consumption is 1.78 kWh kg −1 , and the grade of crude antimony is 98.5%. Compared to no nitrogen stirring, electrolytic current efficiency is improved by 19.87% and the energy consumption is saved by 20.89%. Furthermore, the appropriate flow rate of nitrogen accelerates the removal of sulfur from the reactor and avoids the formation of high-priced antimony compounds.
研究领域:
冶金学
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电化学
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DOI
高影响因子
JOURNAL OF MOLECULAR LIQUIDS
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2022
·
IF 6.633
Jingbao Wang,Jingmao Zhao,Mohammad Tabish,Fan Shi,Qi Cheng,Lijun Peng
The application of inhibitor as an efficient method to protect Zn Mg Al (ZMA) coated steel is first reported in this work. The inhibition performances of newly synthesized cerium gluconate (CG) for ZMA coated steel in 0.05 M NaCl solution were investigated by scanning electron microscopy (SEM), X-ray photoelectron spectroscope (XPS), electrochemical impedance spectroscopy (EIS) measurements, potentiodynamic polarization (PDP) measurements and neutral salt spray (NSS). The synthesized CG exhibits excellent inhibition efficiency of 98.4% at 200 ppm, which is much better than the individual or combined use of sodium gluconate (SG) and cerium (III) nitrate hexahydrate (CNH). Additionally, CG shows long-term protection for ZMA coated steel. A synergistic inhibition model between Ce oxide/hydroxide precipitation with CG adsorption film is proposed based on the obtained results. This work offers a promising option for the corrosion protection of ZMA coated steel.
研究领域:
材料科学
·
腐蚀与防护
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高影响因子
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
·
2023
·
IF 4.5
Jiazhuang Chen,Yuke Zhong,Dongdong Wang,Mei Li,Wei Han,Yalan Liu,Weiqun Shi
To further explore the application of the low-temperature molten salt in processing heavy rare earths, the properties of ytterbium in AlCl 3 -NaCl melts have been investigated. In this melt, YbCl 2 powder products are prepared by electrolysis based on the dissolution reaction of Yb metal. The properties of Yb(II) in AlCl 3 -NaCl melts have also been studied in detail. In-situ UV–VIS absorption spectroscopy demonstrates that the coordination of Yb(II) changes in AlCl 3 -NaCl melts with different Lewis acidity, leading to variations in its diffusion ability. In addition, the conversion of Yb(II)/Yb(III) shows typical soluble-soluble reversible electrochemical behavior in strongly acidic AlCl 3 -NaCl. However, the electrochemical behavior of Yb(II) on inert electrodes becomes complicated when the amount of AlCl 3 in AlCl 3 -NaCl melts less than 52 mol%. This change is attributed to the formation of a YbCl 3 passivation film on the inert electrode during the electro-oxidation of Yb(II). Soaking the passivated electrode in the melt can alleviate the passivation. Understanding the electrochemical and spectroscopic properties of ytterbium in AlCl 3 -NaCl melts paves the way for its subsequent applications.
研究领域:
材料科学
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电化学
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稀土化学
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DOI
高影响因子
DALTON TRANSACTIONS
·
2023
·Vol. 52
·期 33
·11631-11637
·
IF 4
Yunni Liu,Yinghao Tao,Zhaobing Lu,Jing Teng,Weiju Hao,Jun Lin,Guisheng Li
The electrocatalytic nitrogen reduction reaction (NRR) to ammonia is a promising technology to store renewable energy and mitigate greenhouse gas emissions. However, it usually suffers from low ammonia yield and selectivity because of the lack of efficient electrocatalysts. Herein, we report that the construction of metal phosphide heterojunctions is an efficient strategy for NRR activity enhancement. A CoP–MoP heterojunction electrocatalyst, which is fabricated by a facile NaCl template-assisted strategy, exhibits a favorable ammonia yield rate of 77.8 μg h−1 mgcat−1 (38.9 μg h−1 cm−2) and a high faradaic efficiency of 11.16% at −0.50 V versus the reversible hydrogen electrode. The high NRR electrocatalytic activity can be attributed to the electronic coupling effects and interfacial synergistic effects of CoP and MoP at the heterojunction interface, which accelerates the electron transfer rate. Moreover, Mo doping changes the d-band centers of metal sites on the CoP surface, which is conducive to N2 adsorption and promotes N2* adsorption in the competition of occupying active sites, thus inhibiting the HER. This work manifests the high potential of phosphide electrocatalysts and opens an alternative route toward NRR electrocatalysis.
研究领域:
材料科学
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电化学
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产品关联
DOI
PubMed
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2019
·
IF 3.131
Mengdie Lv,Cong Luo,Jian Yang,Yawen Zhou,Changyao Liu,Baocai Xu
Effect of the numbers of oxypropylene on dynamic interfacial tensions (IFT) of five extended surfactants C 12-14 P m E 2 S (m = 0, 3, 5, 8 and 12) were investigated. The effects of electrolyte (NaCl and CaCl 2 ) concentration, salinity, surfactant concentration were studied in detail. The IFTs between C 12-14 P m E 2 S aqueous solutions and n-decane obtained ultralow range at optimum NaCl concentration expect C 12-14 E 2 S. The optimum salinity (S * ) decreased with increase of number of oxypropylene. Also, the IFTs of C 12-14 P 8 E 2 S and C 12-14 P 12 E 2 S approached or obtained ultralow IFT in a wide range of CaCl 2 concentrations. The IFTs between C 12-14 P 12 E 2 S aqueous solution and n-decane decreased as salinity increased. With increasing surfactant concentration, the values of IFT decreased initially and then increased.
研究领域:
化学工程
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界面化学
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DOI
高影响因子
JOURNAL OF CHROMATOGRAPHY B-ANALYTICAL TECHNOLOGIES IN THE BIOMEDICAL AND LIFE SCIENCES
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2015
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IF 2.729
Zhui Tu,Yang Xu,Jinheng Fu,Zhibing Huang,Yao Wang,Bin Liu,Yong Tao
This work aimed to evaluate novel affinity resin used to purify immunoglobulin G (IgG) with a variable domain of the heavy chain of the heavy-chain antibody (VHH) as an affinity ligand. The VHH, isolated from a naïve camelid single-domain phage display library, exhibits not only affinity to the fragment crystallizable (Fc) region of IgG but also high thermal stability . This anti-Fc VHH (AFV) was expressed as a soluble protein in Escherichia coli and purified using a simple heat treatment procedure. The effects of pH and NaCl concentrations on the capacity of AFV resin were also investigated. Results showed a robust property of the AFV resin. It could bind IgGs at various pH conditions (from 6.0 to 9.0) and NaCl concentrations. The static binding capacities of AFV resin ranged from 3.40 ± 0.53 mg/ml to 15.04 ± 0.37 mg/ml measured using rabbit, mouse, and human IgGs. The bound IgGs can be efficiently eluted at pH 5.0, which is conducive to acid-sensitive IgGs and prevents the aggregation of IgGs. After 10 purification cycles or a 7-day period of storage at 37 °C, recovery did not decrease. These findings suggested that VHHs from non-immunized library could also be robust and functional reagent as an affinity purification ligand.
研究领域:
生物技术
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生物化学
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分子生物学
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蛋白质工程
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DOI
PubMed
高影响因子
JOURNAL OF MEMBRANE SCIENCE
·
2020
·
IF 7.183
Rui-Han Li,Yang Li,Hao Wu,Wen-Tao Yan,Chun-Yang Yu,Li-Fen Liu,Cong-Jie Gao
The aromatic polyamide (PA) thin film composite (TFC) reverse osmosis (RO) membrane has been widely used in the desalination processes to settle the global water crisis. To further decrease the desalination cost, in this work, an amphiphilic hyperbranched polymer of HBPO-star-PEO-COCl with abundant end groups of acyl chloride and core-shell hydrophilic/hydrophobic phase separation structure was synthesized and used as the functional nanomaterial to modify the conventional polyamide TFC RO membrane through interfacial crosslinking reaction. The modified RO membrane with 0.005% HBPO-star-PEO-COCl presents the optimal structure and permeation properties. Its PA layer becomes thinner and denser, and its water flux reaches 69.8LMH nearly double that of the original membrane (33.27LMH), at the same time, its NaCl rejection rate reaches 99.22% higher than that of the original membrane. It can attribute to the unique amphiphilic core-shell structure of HBPO-star-PEO-COCl. On the one hand, the PEO shell of HBPO-star-PEO-COCl is highly hydrophilic while the internal HBPO is highly hydrophobic and collapses easily in water to form a three-dimensional quasi-spherical structure, which leads to the formation of the core-shell two-phase interface, thereby facilitating the water molecules to rapidly pass through the PA layer along the hydrophobic wall surface. On the other hand, the end acly chloride groups of HBPO-star-PEO-COCl take part in the crosslinking reaction, which makes the PA layer have higher crosslinking degree and become denser, thereby enhancing the salt retention. Therefore, this study provides an effective way to fabricate a new reverse osmosis composite membrane with favorable comprehensive separation performance based on amphiphilic hyperbranched polymer.
研究领域:
材料科学
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环境工程
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DOI
高影响因子
Nano Energy
·
2023
·
IF 17.6
Mingxiang Zhang,Zaihua Duan,Boyu Zhang,Zhen Yuan,Qiuni Zhao,Yadong Jiang,Huiling Tai
Humidity sensor has important applications in environmental and physiological monitoring. With the emergence of self-powered sensor systems , developing self-powered wireless humidity sensor system is highly attractive, but how to realize the humidity sensor with high humidity sensing and power generation performances to achieve self-powered humidity detection system is full of challenges. Herein, we proposed a self-powered electrochemical humidity (ECH) sensor with primary battery structure, using NaCl and hydroxylated multi-walled carbon nanotubes (OH-MWCNTs) as humidity sensing electrolyte, and MnO 2 and Al as electrodes. The hygroscopic and ionic conductivity characteristics of the NaCl/OH-MWCNTs electrolyte endow the ECH sensor with spontaneous voltage generation in a wide humidity range of 10.9–91.5 % relative humidity (RH) at room temperature of 25 °C. Notably, a single ECH sensor can output 1.32 V with a maximal power of 20.52 μW at 91.5 % RH. Furthermore, the ECH sensor can be used for respiratory rate monitoring, non-contact switch and visual humidity indication. As a proof of concept , we successfully designed a prototype of self-powered wireless humidity monitoring system based on ECH sensor. This work not only provides a new strategy for developing high-performance ECH sensor, but also provides a reference for the self-powered wireless humidity monitoring system of the ECH sensor.
研究领域:
传感器技术
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材料科学
·
环境监测
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DOI
高影响因子
Advanced Composites and Hybrid Materials
·
2024
·Vol. 7
·期 2
·1-15
·
IF 23.2
Hu Yang,Zhang Mengyang,Quan Bingqing,Li Xiaolong,Hu Xinpeng,Wu Hao,Huang Xianrong,Lu Xiang,Qu Jinping
With the sharp increase in modern energy consumption, phase change composites with the characteristics of rapid preparation are employed for thermal energy storage to meet the challenge of energy crisis. In this study, a NaCl-assisted carbonization process was used to construct porous Pleurotus eryngii carbon with ultra-low volume shrinkage rate of 2%, which provides enormous space for encapsulation of PEG-4000. Such composite possesses exceptional thermal stability, with an absorption rate of 88.24%, a melting enthalpy of 174.87 J/g, and a relative enthalpy efficiency of 97.78%. Consequently, the resultant composites exhibit outstanding performances in storing and releasing thermal energy for photo-thermal, electric-thermal, and magnetic-thermal conversion. This study presents a highly valuable strategy into the quick fabrication of phase change composites, facilitating their practical applications in thermal energy storage. Graphical Abstract
研究领域:
材料科学
·
能源工程
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DOI
高影响因子
TENSIDE SURFACTANTS DETERGENTS
·
2024
·
IF 1.2
Siqi Zhang,Dongqing Wang,Bo Fang,Yudie Li,Jiayi Shen,Zhenrui Tian,Jinlan He
A novel viscoelastic surfactant (VES) micelle system was developed by using a new tetrameric polyhydroxy cationic surfactant (STPC) as a thickener in combination with sodium chloride (NaCl). The flow curves, thixotropy, viscoelasticity, viscosity-temperature relationship, temperature and shear resistance, and thermal thixotropy of the micelle system were further investigated. The results showed that the new four-parameter rheo kinetic model accurately described the viscosity versus shear time curve of the micelle system. The established four-parameter viscosity-temperature relationship model could be used to characterize the viscosity versus temperature curve of the micelle system. Meanwhile, the Carreau model could also be fitted to the flow curve of the STPC/NaCl micelle solution. The effects of counterion salt concentration and surfactant concentration on the rheological properties of the viscoelastic STPC/NaCl micelle solution were clarified and the optimum mass ratio of 5 wt%/5 wt% for the STPC/NaCl solution was determined. The viscoelastic modulus versus temperature curves of the STPC/NaCl (5 wt%/5 wt%) micelle solution showed that it exhibited thermal thixotropy. This study extends on the types of thickeners and VES micelle systems and provides a rheological reference for the application of viscoelastic tetrameric cationic surfactants in oil fields.
研究领域:
化学工程
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石油工程
·
材料科学
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DOI
高影响因子
危险品化学品经营许可证（带存储）