Research Progress of Metal Organic Frameworks/Carbon‐Based Composites for Microwave Absorption

Abstract

Recently, owing to fine tunability, structural diversity, uniform pore structure, and ultra-high specific surface area, metal organic frameworks (MOFs) have been considered as excellent precursors or templates for manufacturing carbon-based/metal-based compounds and their composites. [11,[13][14][15] Compared with traditional porous materials, MOFs materials have the greatest

Salt-assisted pyrolysis of carbon nanosheet and carbon nanoparticle hybrids for efficient microwave absorption

“…The attenuation coefficient (α) is another factor for evaluating the attenuation capability of electromagnetic waves, which can be expressed by the following eqn (S2, ESI†). 35 As depicted in Fig. 4d, the α values of all products increase with increasing electromagnetic wave frequency.…”

Recent research progress of carbon-based and their composites for electromagnetic waves absorption

“…Compared with single-component MA materials, multi-component MA materials show better impedance matching and a wider EAB. 127 Because the ternary composite material can introduce more polarization mechanisms, it is beneficial to EMW attenuation. Xu 128 prepared hollow carbon microspheres/molybdenum disulfide/cobalt (HCS/ MoS 2 /Co) ternary composites.…”

“…Compared with single-component MA materials, multi-component MA materials show better impedance matching and a wider EAB. 127…”

Co/CeO2/C composites derived from bimetallic metal–organic frameworks for efficient microwave absorption

“…Traditional electromagnetic MA materials can be classified into two main types according to the microwave attenuation mechanism: dielectric and magnetic materials. [5][6][7][8] The essence of MA lies in the con-version of incident electromagnetic waves into heat or other forms of energy through a variety of loss mechanisms. However, traditional MA materials usually show one main loss mechanism, which makes it difficult to satisfy the increased demand for "thin, wide, and strong" absorbent products.…”