Hierarchical N doped carbon foams with significantly enhanced electromagnetic absorptions

IF 2.7 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Letters Pub Date : 2025-03-14 DOI:10.1016/j.matlet.2025.138397

Haina Wang , Xiangnan Chen , Ruohao Li , Jingyi Fan , Xin Tian , Guowen Zhang

引用次数: 0

Abstract

Melamine foams are commonly used as precursors for the carbon foams’ synthesis. In this paper, polypyrrole was chosen for the modification of melamine foams, realizing hierarchical N doped carbon foams through a one-step carbonization. Polypyrrole played multiple roles, such as stabilizing the foam structures, regulating the morphology and providing the doping N source, etc. The hierarchical N doped carbon foams showed significantly enhanced electromagnetic absorptions with the optimal reflection loss reached −44.58 dB at 8.23 GHz. This paper provides referencing pathway for the design of lightweight electromagnetic absorption materials.

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来源期刊

Materials Letters 工程技术-材料科学：综合

CiteScore

5.60

自引率

3.30%

发文量

1948

审稿时长

50 days

期刊介绍： Materials Letters has an open access mirror journal Materials Letters: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review. Materials Letters is dedicated to publishing novel, cutting edge reports of broad interest to the materials community. The journal provides a forum for materials scientists and engineers, physicists, and chemists to rapidly communicate on the most important topics in the field of materials. Contributions include, but are not limited to, a variety of topics such as: • Materials - Metals and alloys, amorphous solids, ceramics, composites, polymers, semiconductors • Applications - Structural, opto-electronic, magnetic, medical, MEMS, sensors, smart • Characterization - Analytical, microscopy, scanning probes, nanoscopic, optical, electrical, magnetic, acoustic, spectroscopic, diffraction • Novel Materials - Micro and nanostructures (nanowires, nanotubes, nanoparticles), nanocomposites, thin films, superlattices, quantum dots. • Processing - Crystal growth, thin film processing, sol-gel processing, mechanical processing, assembly, nanocrystalline processing. • Properties - Mechanical, magnetic, optical, electrical, ferroelectric, thermal, interfacial, transport, thermodynamic • Synthesis - Quenching, solid state, solidification, solution synthesis, vapor deposition, high pressure, explosive