Study on the Absorbing Properties of Co/C Nanocomposites Derived from MOFs
Metal-organic frameworks(MOFs)derived Co/C nanocomposites were prepared by in-situ pyroly-sis of MOFs at specific temperatures to investigate the effect of pyrolysis temperature on the electromagnetic wave absorbing properties of Co/C nanocomposites.Scanning electron microscopy(SEM),X-ray diffractometer(XRD)and vector network analyzer(VNA)were used to investigate the micromorphology,crystal structure and wave absorption properties.The results showed that the pyrolysis temperature had a significant effect on the ab-sorption properties of the samples.Co/C-800 had the best absorbing performance,the maximum reflection loss could reach-20.88 dB and the effective absorption bandwidth could reach 4.24 GHz.This result had a certain significance for exploring new and efficient Co/C composite absorbing materials.
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