期刊
JOURNAL OF MATERIALS CHEMISTRY A
卷 3, 期 27, 页码 14358-14369出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5ta01577d
关键词
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资金
- National Natural Science Foundation of China [51403236, 51021001]
- Opening Project of State Key Laboratory of Disaster Prevention & Mitigation of Explosion Impact [DPMEIKF201310]
A self-assembled spongelike (S) ultralight (rho approximate to 140 mg cm(-3)) aerogel was fabricated through polypyrrole (PPy) and reduced graphene oxide (RGO). First, the dispersed graphene oxide (GO) was locked homogeneously in those chains formed by the gelation of PPy. Then, a hydrothermal process was employed to reduce GO to RGO. With a trace content of RGO (0.43 wt% in aerogel), the electromagnetic absorption (EA) performance had been significantly improved. Only with a very low filler loading (10 wt%), the S-PPy/RGO aerogel based composite could reach an effective EA bandwidth (below -10 dB) of 6.76 GHz, and the highest reflection coefficient reached -54.4 dB at 12.76 GHz. It was demonstrated that this aerogel material can be considered as an effective route to design a lightweight and high performance EA material. Furthermore, the S-PPy/RGO aerogel also showed a suitable pollution treatment performance with different solvents and dyes.
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