کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5435449 | 1509350 | 2017 | 7 صفحه PDF | دانلود رایگان |
- A novel polyaniline coated MOF (Fe) was synthesized via a two-step method.
- The maximum reflection loss of MOF (Fe)/PANI composite can achieve â41.4Â dB at 11.6Â GHz with a thickness of 2Â mm.
- The absorption bandwidth exceeding â10Â dB is almost up to 5.5Â GHz (from 9.8 to 15.3Â GHz).
A hybrid polyaniline coated metal organic framework (MOF/PANI) was designed and fabricated via hydrothermal and in situ chemical polymerization methods The microstructure and morphology were examined by XRD, FTIR, FESEM and TEM. The results showed that MOF (Fe) particles were completely coated by PANI and formed a core-shell composite. The hybrid MOF (Fe)/PANI composite exhibited enhanced EM wave absorption capability compared with MOF (Fe), including the higher absorption intensity (â41.4Â dB at 11.6Â GHz) and excellent absorption bandwidth (5.5Â GHz exceeding â10Â dB with an only thickness of 2Â mm), which was due to enhanced interfacial effects, attenuation constant and the synergic effect between MOF (Fe) and PANI. Therefore, such a core-shell MOF (Fe)/PANI composite is a promising absorber for application in microwave absorption field.
Journal: Synthetic Metals - Volume 228, June 2017, Pages 18-24