December 8, 2023
Novel framework promotes efficient electromagnetic wave absorption
The results uncover intricate structural parameters, particularly protein cage thickness, and their impact on electromagnetic properties. The present exploration dissects their role in shaping dielectric properties and achieving optimal impedance matching, shedding light on structural mechanisms that contribute to the material’s radar cross section (RCS) absorption performance. Credit: Sajid

A research team led by Prof. Wang Junfeng from the Hefei Institutes of Physical Science of the Chinese Academy of Sciences has developed a bio-inspired metal-organic framework (Bio-MOF) to achieve efficient absorption of electromagnetic waves.

The study was published in Small.

Metal organic frameworks (MOFs) are considered to be one of the excellent precursors for electromagnetic wave absorption materials. Typically, MOF-derived absorbing materials exhibit unique advantages in impedance matching and loss due to their excellent conductivity, magnetism, sufficient defect sites and interfacial structure. However, to achieve efficient absorption of electromagnetic waves over a wide frequency range, multiple challenges need to be overcome while maintaining lightness and flexibility.

In this study, using biomineralized bovine serum albumin (BSA) as a template, the research team successfully controlled the crystal structure of Mil-100, a type of Fe-based MOF material.

This led to the development of a unique biological MOF material called BSA@Mil-100, which exhibited a hierarchical self-assembled structure ranging from the nano to micrometer scale and exhibited remarkable microwave absorption (MA) properties.

“Compared to conventional Mil-100, BSA@Mil-100 showed significant improvements in its ability to absorb microwaves,” said Sajid ur Rehman, first author of the study.

The research results showed that at a super high frequency range of 8.85 GHz, BSA@Mil-100 achieved remarkably improved microwave absorption performance. It reached an absorption level of -58 dB and a broadband width of 6.79 GHz.

This approach represents a promising frontier in the design of high-performance microwave materials, according to the team.

More information:
Sajid ur Rehman et al, Hierarchical‐Bioinspired MOFs Enhanced Electromagnetic Wave Absorption, Small (2023). DOI: 10.1002/smll.202306466

Journal information:

Novel framework promotes efficient electromagnetic wave absorption (2023, October 10)
retrieved 10 October 2023

This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no
part may be reproduced without the written permission. The content is provided for information purposes only.

The Power of TikTok Coins: Explained
Generatori di Monete TikTok: Ne Vale la Pena?
TikTok Coin Farming Techniques: Unveiled
The Science of TikTok Coin Farming
Steigern Sie Ihr TikTok-Konto mit Kostenlosen Münzen
Free TikTok Coins: The Game Changer
TikTok Coin Farming: What You Need to Know
Nutzen Sie die Geschenke von TikTok-Münzen optimal aus
The Power of TikTok Coins: Explained
Free TikTok Coins: Your Ticket to Stardom
Desbloquea Monedas Gratis en TikTok: Tu Guía Definitiva
TikTok Coin Farming Demystified
Unlimited TikTok Coins: Myth or Reality?
نصائح لزيادة تفاعل المتابعين باستخدام العملات TikTok
Unlocking TikTok Coins: Insider Techniques
The Secret Sauce to TikTok Coin Generation
الاستفادة القصوى من مولدي العملات TikTok بدون خسائر
Get Free TikTok Coins: The Ultimate Guide
The Future of TikTok Coins: Trends and Predictions
Strategie per Monete TikTok Gratis: Consigli degli Esperti
TikTok Coin Generator Review: What Works Best?
The Science of TikTok Coin Farming
استراتيجيات ناجحة للحصول على عملات TikTok بسرعة
TikTok Coin Generator Review: What Works Best?
TikTok Coin Hacks for Rapid Growth

Leave a Reply

Your email address will not be published. Required fields are marked *