@article{Tian2022, 
author = {Wei Tian and Jinyao Li and Yifan Liu and Longjiang Deng and Yang Guo and Xian Jian},
title = {Large-scale synthesis of fluorine-free carbonyl iron-organic silicon hydrophobic absorbers with long term corrosion protection property},
year = {2022},
journal = {Nano Research},
volume = {15},
number = {10},
pages = {9479-9491},
keywords = {microwave absorption, core–shell, long-term corrosion resistance, radar cross-sectional simulation, carbonyl iron (CI)@SiO2/1,1,1,3,3,3-hexamethyl disilazane (HMDS) hybrid},
url = {https://www.sciopen.com/article/10.1007/s12274-022-4569-y},
doi = {10.1007/s12274-022-4569-y},
abstract = {Environmentally-friendly magnetic metallic absorbers with high-performing antioxidant property, thermal stability, and anti-corrosion capability have attracted great attention in real-world applications. A surface modification technology of magnetic metallic absorbers with dense and inert materials has been an effective strategy to solve the aforesaid problem. Herein, fluorine-free core–shell carbonyl iron-organic silicon absorbers (CI@SiO2/1,1,1,3,3,3-hexamethyl disilazane (HMDS)) were fabricated via a facile one-pot synthesis using tetraethyl orthosilicate (TEOS) and HMDS as the precursor of protective layer (SiO2/HMDS), and CI@SiO2/HMDS hybrid reveals its long-term corrosion resistance and excellent microwave absorption performance with a minimum reflection loss value of −44.3 dB and an effective absorption bandwidth of 5.3 GHz at a thin thickness of 2.0 mm after immersion in 5.0 wt.% NaCl acidic solutions for 2,160 h. Meanwhile, CI@SiO2/HMDS hybrid can still achieve the maximum radar cross-sectional (RCS) reduction values about 16.5 dB·m2 at the detection θ of 0°. The exceptional microwave absorption performance and structural stability are largely due to the extraordinary wave-transparent property and shielding ability against corrosive medium of SiO2/HMDS hydrophobic protective layer with a contact angle of 132.5°. The research paves the way for the large-scale and batch production of high-performance magnetic metallic absorbers and increases their survivability and reliability in the harsh environments.}
}