JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
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2022
·Vol. 104
·期 1
·78-90
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IF 2.606
Huang Yi,Zhao Chenyang,Li Yue,Wang Chen,Shen Tao,Wu Chunchun,Hu Zhongyuan,Cheng Di,Yang Hui
Integration of corrosion inhibitor-loaded nanocontainers into sol–gel-derived anticorrosion coatings presents a promising strategy to endow them with self-healing ability and improve their long-term corrosion protection properties. In the present work, we demonstrate the preparation of sol–gel anticorrosion coating incorporating benzotriazole-loaded SiO 2 mesoporous nanocontainers (BTA@SiO 2 ) synthesized via a modified one-pot method. The nanocontainers exhibited suitable mesoporous structures and pH-dependent inhibitor release properties. Salt spray tests and EIS analysis on the nanocontainer-containing sol–gel coating indicated enhanced corrosion protection properties owing to the high compatibility of the silica skeleton of the nanocontainers with the sol–gel coating matrix, as well as the formation of inhibitive layer on the metal surface.
Graphical abstract
研究领域:
材料科学
·
腐蚀防护
✓ 已验证
DOI
高影响因子
SOLAR ENERGY MATERIALS AND SOLAR CELLS
·
2022
·
IF 7.305
Jiahui Lu,Nan Sheng,Chunyu Zhu
Phase change materials (PCMs) using metals/alloys have been concerned for medium temperature solar thermal storage and waste heat recovery. However, the PCMs may leak due to the solid-liquid phase change, which greatly limits the use of metallic PCMs. In this study, we report the synthesis of microencapsulated PCMs (MEPCMs) using metallic Sn as PCM core and a sol-gel coated SiO 2 as shell. The as-coated microcapsules are further undergone a high temperature heat treatment at oxygen/nitrogen atmosphere. Due to the self-repairing effect, the cracked microcapsules can be sealed and stabilized, thereby forming high stabilized MEPCMs over 100 cycles. The melting point and latent heat of the Sn@SiO 2 –O 2 microcapsules were around 233 °C and 56 J g -1 respectively, while the values were around 233 °C and 58 J g -1 for Sn@SiO 2 –N 2 microcapsules, similar to the theoretical values of metallic Sn. The successfully prepared Sn@SiO 2 MEPCMs could find wide applications in medium temperature thermal energy storage .
研究领域:
材料科学
·
能源工程
✓ 已验证
产品关联
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2025
·
IF 5.4
Yan Shi,Yang Zhang,Chengping Miao,Jianxing Yu,Xiaohua Tu,Jiayou Li
Plasma electrolytic oxidation (PEO) coatings with long-lasting active protection were prepared by incorporating 2-mercaptobenzothiazole (MBT)-loaded halloysite nanotubes (HNTs), followed by introduced insoluble Cu-MBT complex, has been achieved in present study. To further compare and analyze the corrosion characteristics of the sample, different halloysite nanotubes (HNTs, MBT@HNTs) profiles were also added to the electrolytes for the preparation of different oxide films (HNTs-PEO and MBT-HNTs-PEO). The coatings were characterized by scanning electron microscopy (SEM), film thickness meter, roughness meter, energy dispersive X-ray spectroscopy (EDX) and X-ray diffraction (XRD). The corrosion behavior was evaluated by electrochemical impedance spectroscopy (EIS), and open circuit potential (OCP) tests. The results show that the long-term corrosion resistance of magnesium alloys can be improved by adding Cu - MBT-HNTs owning to the self-healing effect.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
CHEMPHYSCHEM
·
2025
·
IF 2.2
Li Ma,Wei-Ming Yang,Lin Xue,Jie Zhang,Ke-Xin Lin,Pei-Jian Chen,Xiang Zhang,Hai-Shun Liu
Graphical The co-catalysis of iron-nickel bimetals can not only achieve the complete degradation of organic pollutants but also continue to be recycled. The introduction of Ni enhances the reducibility of the 3D Fe 50 Ni 50 catalyst surface, promotes electron transfer, enriches the surface with Fe (II) during degradation, maintains activity, and provides a self-healing effect. Advanced oxidation processes offer a potent, eco-friendly solution for degrading organic wastewater. Creating high-activity and stability catalysts is crucial to addressing water pollution concerns. Nevertheless, due to constraints in their preparation, prevalent catalysts often lack satisfactory cyclic stability and pose challenges in recovery. This research introduces an innovative catalyst, the 3D printed Fe-Ni porous framework (3D Fe 50 Ni 50 ), characterized by its high activity, robust stability, and straightforward recovery process. The catalytic performance of 3D Fe 50 Ni 50 is attributed to the synergistic effects of its bimetallic constituents and its distinct porous architecture. Under optimal conditions, the kinetic reaction constant reaches 1.56 min −1 . It represents a 26-fold increase over commercially available Fenton's reagent ZVI powder. And the Fe 50 Ni 50 catalyst can be employed cyclically up to 132 times, maintaining a degradation efficiency of over 90% relative to its initial performance. The findings of this article suggest that incorporating Ni augments the catalyst surface's reducibility, facilitating electron transfer. This bestows the catalyst with a nice self-healing ability, ensuring sustained degradation. This investigation paves the way for the design of catalysts with heightened activity and stability and presents promising applications in wastewater treatment.
研究领域:
环境工程
·
材料科学
·
化学工程
·
催化
·
纳米技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）