【2023年影響因子/JCR分區：10.383 /Q1】《Anticorrosion Coating with Heterogeneous Assembly of Nanofillers Modulated by a Magnetic Field》
writer：Lu Pengpeng, Fu Xue, Li Xin, Xu Li, Yong Fan, Jie Zhao,* Limei Tian,* Jiyu Sun, and Luquan Ren
keywords：magnetic-response, anticorrosive, mica nanosheets, nanocontainer, corrosion inhibitor
source：期刊
specific source：ACS Applied Materials & Interfaces
Issue time：2023年
An anticorrosive coating with randomly distributed passive barriers
and regionally enriched active corrosion inhibitors is developed by integrating
mica nanosheets (MNSs) and magnetic-responsive core?shell mesoporous
nanoparticles with 2-mercaptobenzothiazole (Fe3O4@mSiO2/MBT) under
magnetic field incubation. The bottom enriched Fe3O4@mSiO2/MBT rapidly
releases the MBT to form a passivation layer on corrosion sites, enhancing the
corrosion inhibition efficiency by 30.36% compared with the control (NP0.7EP-R).
The impedance modulus |Z|0.01 Hz of the sample (NP0.7/MNS0.5/EP) increases by
five orders of magnitude compared with that of its control (NP0.7/MNS0EP) after
30 days of corrosion immersion. NP0.7/MNS0.5/EP exhibited the lowest corrosion
rate (3.984 × 10?5 mm/year) as compared to the other samples. Notably, the
coating in a fractured state still maintains superior corrosion inhibition even after
40 day salt spray testing. The differentiated distribution of nanofillers was well
confirmed by optical microscopy and SEM-EDS, and the synergistic effect of the
active/passive integrated anticorrosive coating with merits of both comprehensive protection and fast responsiveness was
systematically explored.