☆ 4.7 Article

Self-assembled hollow bowl-shaped metal-organic framework-derived electromagnetic wave absorbers with strong anti-microbiologically influenced corrosion performance

JOURNAL OF ALLOYS AND COMPOUNDS (2023)

Journal

JOURNAL OF ALLOYS AND COMPOUNDS

Volume 949, Issue -, Pages -

Publisher

ELSEVIER SCIENCE SA

DOI: 10.1016/j.jallcom.2023.169847

Keywords

Metal -organic framework derivative; Co; C composite; Electromagnetic wave absorption; Microbiologically influenced corrosion

Ask authors/readers for more resources

Protocol

Community support

Reagent

Community support

Automated Summary New
Abstract

Electromagnetic wave absorbers with anti-corrosion properties have been widely used, but the focus has been mainly on anti-inorganic corrosion. This study synthesized cobalt-based metal-organic framework-derived composites with hollow bowl-shape, which demonstrated excellent electromagnetic absorption and anti-microbiologically influenced corrosion properties. No similar bifunctional materials have been reported, making this work of great significance and filling a gap in the field.

The electromagnetic wave absorbers widely applied to various harsh scenes, especially with anti-corrosion properties have been reported and the focus was at the anti-inorganic corrosion. However, the organic corrosion, such as microbiologically influenced corrosion is also serious and needs to be overcome. Herein, based on the excellent electromagnetic synergy effect, a series of cobalt-based metal-organic framework -derived composites with hollow bowl-shape were synthesized. By modulating the balance between the dielectric and magnetic loss, the minimum reflection loss of - 52.66 dB with matching thickness of 2.7 mm and an ultra-wide effective absorption bandwidth of 6.8 GHz, which covered the whole Ku band, with a thickness of 2.4 mm, were achieved. In addition, the radar cross section values of the composites were simulated and the results verify the excellent absorption performances of the absorbers. Combining the prominent absorption performance, the derived composites exhibited exceptional anti-microbiologically influenced corrosion properties reflected by the electrochemical impedance modulus at 0.01 Hz sub-stantially increasing more than 3 times. Until now, no similar bifunctional materials have been reported, so it is of great significance and emergence to fill this gap, we hope our work can provide a theoretical basis for the following related experimental research. (c) 2023 Elsevier B.V. All rights reserved.

Authors

I am an author on this paper

Click your name to claim this paper and add it to your profile.

Reviews

Primary Rating

4.7

Not enough ratings

Secondary Ratings

Novelty

Significance

Scientific rigor

Rate this paper

Ultralight, hierarchical metal-organic framework derivative/graphene hybrid aerogel for electromagnetic wave absorption

Jingpeng Lin, Jing Qiao, Haoyuan Tian, Lutong Li, Wei Liu, Lili Wu, Jiurong Liu, Zhihui Zeng

Summary: This study presents the fabrication of ultralight, hydrophobic, hierarchically porous aerogels composed of metal-organic framework (MOF)-derived magnetic gamma-Fe2O3@C/graphene via high-efficiency electrostatic assembly. The aerogels exhibit high conductive and magnetic losses, as well as polarization loss capacity derived from abundant heterogeneous interfaces. The optimized impedance matching and multiple scattering of electromagnetic waves (EMWs) contribute to the excellent EMW absorption performance, achieving a minimum reflection loss of -60.5 dB and a broad effective absorption bandwidth of 7.76 GHz.

ADVANCED COMPOSITES AND HYBRID MATERIALS (2023)