Bimetallic MOF-derived Co/Ni@C and MXene co-decorated cellulose-derived carbon foams for absorption-dominated electromagnetic interference shielding

IF 10.7 1区化学 Q1 CHEMISTRY, APPLIED Carbohydrate Polymers Pub Date : 2025-02-10 DOI:10.1016/j.carbpol.2025.123369

Fang Ren , Lin Ma , Chunjie Li , Tong Wu , Jiale Zhang , Lu Pei , Yanling Jin , Zhenfeng Sun , Zhengzheng Guo , Ping Song , Penggang Ren

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引用次数: 0

Abstract

Metal−organic framework (MOF)-derived magnetic porous carbon not only have excellent magnetic loss, but also can construct various nanostructures through appropriate design to enhance electromagnetic waves (EMWs) absorption. Herein, magnetic porous carbon (Co/Ni@C) derived from rod-shaped Co/Ni-MOFs was selected as magnetic components and MXene was regarded as conductive materials to construct the three-dimensional porous Co/Ni@C/MXene/cellulose-derived carbon foams via a simple solution mixing-regeneration, freeze-drying process and a facile pyrolysis strategy. Due to the electric/magnetic coupling loss and the interfacial polarization loss caused by multi-interface architecture, the synthesized carbon foam achieves an absorption coefficient of 0.54 and a high EMI SE of 70.4 dB, which enhances the electromagnetic shielding performance without damaging the high absorption coefficient. This work provides a basis for the preparation of electromagnetic shielding composite materials with multi-interface structures to achieve efficient EMI SE and superior absorption coefficients.

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来源期刊

Carbohydrate Polymers 化学-高分子科学

CiteScore

22.40

自引率

8.00%

发文量

1286

审稿时长

47 days

期刊介绍： Carbohydrate Polymers stands as a prominent journal in the glycoscience field, dedicated to exploring and harnessing the potential of polysaccharides with applications spanning bioenergy, bioplastics, biomaterials, biorefining, chemistry, drug delivery, food, health, nanotechnology, packaging, paper, pharmaceuticals, medicine, oil recovery, textiles, tissue engineering, wood, and various aspects of glycoscience. The journal emphasizes the central role of well-characterized carbohydrate polymers, highlighting their significance as the primary focus rather than a peripheral topic. Each paper must prominently feature at least one named carbohydrate polymer, evident in both citation and title, with a commitment to innovative research that advances scientific knowledge.