KMS Chongqing Institute of Green and Intelligent Technology, CAS
| Synthesis of novel rambutan-like graphene@aluminum composite spheres and non-destructive terahertz characterization | |
Yang, Zhongbo1,2 ; Feng, Shuanglong1,2; Yao, Wei1; Han, Jiaguang3; Wang, Huabin1,2
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| 2019-01-24 | |
| 摘要 | Graphene reinforced Al (graphene@Al) spheres were synthesized using microwave plasma chemical vapor deposition technique in which H-2, CH4, and Ar were used as the reduced gas, carbon source, and plasma enhancement gas, respectively. The obtained graphene@Al spheres presented a rambutan-like structure and had a graphene shell wrapped on the sphere surface, which was proved by scanning electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy, and Raman spectroscopy. The thickness of the graphene shell on the Al sphere is difficult to be characterized by conventional techniques. However, it was successfully measured with a sophisticated terahertz (THz) time-domain spectroscopic technique. To the best of our knowledge, neither have graphene@Al spheres been synthesized before nor has a THz-based technique been exploited to characterize the thickness of a shell structure. Therefore, the present work sheds useful insights on both the rational synthesis and non-destructive characterization of graphene reinforced functional structures. |
| DOI | 10.1039/c8ra09129c |
| 发表期刊 | RSC ADVANCES
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| ISSN | 2046-2069 |
| 卷号 | 9期号:6页码:3486-3492 |
| 收录类别 | SCI |
| WOS记录号 | WOS:000457880900063 |
| 语种 | 英语 |
