Synthesis of PPy/Ni/RGO and enhancement on its electromagnetic wave absorption performance. Issue 9 (15th June 2018)

• Record Type: Journal Article
• Authors: Han, Sujuan; Wang, Suyun; Li, Wanhui; Lai, Yaru; Zhang, Ning; Yang, Nan; Wang, Qinghua; Jiang, Wei
• Is Part Of: Ceramics international. Volume 44:Issue 9(2018)
• Page Start: 10352
• Page End: 10361
• Publication Date: 2018-06-15
• Subjects: Polypyrrole -- Reduced graphene oxide -- Reflection loss -- Electromagnetic wave absorption performance; Ceramics -- Periodicals; Céramique industrielle -- Périodiques; Ceramics; Periodicals; Electronic journals; 666
• DOI: 10.1016/j.ceramint.2018.03.046
• Languages: English
• ISSNs: 0272-8842

Abstract

Abstract: The ternary composites of hollow tubular polypyrrole (PPy) and Ni particles based on reduced graphene oxide (RGO) were synthesized by a low-energy method. PPy and Ni particles were uniformly distributed on the surface of RGO. Specifically, multilayer interfaces existed in the hybrid, residual defects and folded structures of RGO and the hollow tubular structures of PPy made a significant contribution to electromagnetic (EM) wave attenuation. The final results showed that the strongest reflection loss (RL) value of PNR-2 sample could achieve − 47.32 dB at 5.76 GHz. The PNR-3 sample's RL value was − 18.21 dB at 15.92 GHz with the thickness of only 1.5 mm, and its corresponding effective absorption bandwidth reached 4.32 GHz (13.68–18 GHz). Hence, with the changes of PPy mass ratio, the impedance matching and attenuation were regulated to realize remarkable EM wave absorption performance including lightweight, thin thickness, wide bandwidth and strong absorption. Highlights: The ternary composites PPy/Ni/RGO were synthesized through low energy consumption methods. The ternary composites PPy/Ni/RGO were used as absorbers for the first time. The hollow tubular structures of PPy doped with acids have integrated functions. Through regulating the mass ratio of PPy, we can achieve the aim of controlling the composites' EM wave absorption performance.