Synthesis of nitrogen-doped graphene wrapped SnO2 hollow spheres as high-performance microwave absorbers. Issue 19 (5th April 2019)

• Record Type: Journal Article
• Authors: Dai, Weiyong; Luo, Hui; Chen, Fu; Wang, Xian; Xiong, Ying; Cheng, Yongzhi; Gong, Rongzhou
• Is Part Of: RSC advances. Volume 9:Issue 19(2019)
• Page Start: 10745
• Page End: 10753
• Publication Date: 2019-04-05
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1039/c9ra01556f
• Languages: English
• ISSNs: 2046-2069

Abstract

Abstract : Nitrogen-doped graphene/SnO2 hollow sphere hybrids were synthesized and show high-performance microwave absorption properties. Abstract : Nitrogen-doped graphene (NG)/SnO2 hollow sphere hybrids were synthesized in this work. The chemical composition, crystal structure and morphology have been characterized by FT-IR spectra, XRD, Raman spectra, XPS, SEM and TEM in detail. Reflection loss (RL) values of NG/SnO2 hollow sphere hybrids less than −10 dB and −20 dB are found in the wide frequency range of 4.5–18 GHz and 5–16.2 GHz within 1.3–3.5 mm, and a minimum RL of −50.3 dB is achieved at 8.6 GHz with the matching thickness of only 2.3 mm. The results indicate that the NG/SnO2 hollow sphere hybrids with high-performance microwave absorption properties have a promising future in decreasing electromagnetic wave irradiation and interference.