Abstract

Carbon nanofibers decorated with porous carbon nanotubes were prepared by electrospinning and annealing methods. The microwave reflection loss of the products was investigated in the frequency range of 2–18 GHz. The bandwidth with a reflection loss less than −10 dB covers a wide frequency, ranging from 7.0 to 14.1 GHz with thickness of 3.0–5.5 mm, and the minimum reflection loss is −44.5 dB at 10.7 GHz with thickness of 2.0 mm. The large reflection loss and wide reflection band reveal that the products could be a promising candidate for microwave absorption.

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