• The delicate “3D helix–2D sheet–1D fiber–0D dot” hierarchical aerogels were successfully synthesized.

• The graphene sheets are uniformly intercalated by helical carbon nanocoils, which endow the as-obtained aerogel with abundant porous structures and better dielectric properties.

• By adjusting the growth parameters of 0D core-shell structured particles and 1D carbon nanofibers, the tunable electromagnetic properties and excellent impedance matching are achieved.

中文翻译：

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由多维梯度碳纳米结构组成的多级气凝胶的结构工程，用于高效微波吸收

• 
  成功合成了精致的“3D螺旋-2D片状-1D纤维-0D点”分级气凝胶。

• 
  石墨烯片均匀地插有螺旋碳纳米线圈，这使得所获得的气凝胶具有丰富的多孔结构和更好的介电性能。

• 
  通过调整0D核壳结构颗粒和1D碳纳米纤维的生长参数，实现了可调的电磁特性和优异的阻抗匹配。