Effects of Buffer Gases on Graphene Flakes Synthesis in Thermal Plasma Process at Atmospheric Pressure
文献类型：期刊论文
| 作者 | Wang, Cheng2; Song, Ming1; Chen, Xianhui2; Li, Dongning2; Xia, Weiluo3 ; Xia, Weidong2
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| 刊名 | NANOMATERIALS
 |
| 出版日期 | 2020-02-01 |
| 卷号 | 10 |
| 关键词 | graphene flakes thermal plasma magnetically rotating arc plasma buffer gas nitrogen-doped graphene flakes |
| DOI | 10.3390/nano10020309 |
| 通讯作者 | Xia, Weidong(xiawd@ustc.edu.cn) |
| 英文摘要 | A thermal plasma process at atmospheric pressure is an attractive method for continuous synthesis of graphene flakes. In this paper, a magnetically rotating arc plasma system is employed to investigate the effects of buffer gases on graphene flakes synthesis in a thermal plasma process. Carbon nanomaterials are prepared in Ar, He, Ar-H-2, and Ar-N-2 via propane decomposition, and the product characterization is performed by transmission electron microscopy (TEM), Raman spectroscopy, X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and the Brunauer-Emmett-Teller (BET) method. Results show that spherical particles, semi-graphitic particles, and graphene flakes coexist in products under an Ar atmosphere. Under an He atmosphere, all products are graphene flakes. Graphene flakes with fewer layers, higher crystallinity, and a larger BET surface area are prepared in Ar-H-2 and Ar-N-2. Preliminary analysis reveals that a high-energy environment and abundant H atoms can suppress the formation of curved or closed structures, which leads to the production of graphene flakes with high crystallinity. Furthermore, nitrogen-doped graphene flakes with 1-4 layers are successfully synthesized with the addition of N-2, which indicates the thermal plasma process also has great potential for the synthesis of nitrogen-doped graphene flakes due to its continuous manner, cheap raw materials, and adjustable nitrogen-doped content. |
| WOS关键词 | MAGNETICALLY ROTATING ARC ; FEW-LAYER GRAPHENE ; CHEMICAL-VAPOR-DEPOSITION ; DOPED GRAPHENE ; CARBON NANOMATERIALS ; RAMAN-SPECTROSCOPY ; PHASE SYNTHESIS ; NANO-FLAKES ; THIN-FILMS ; NITROGEN |
| 资助项目 | National Natural Science Foundation of China[11705202] ; National Natural Science Foundation of China[11675177] ; National Natural Science Foundation of China[11475174] ; Anhui Provincial Natural Science Foundation[1808085MA12] ; Anhui Province Scientific and Technological Project[1604a0902145] |
| WOS研究方向 | Science & Technology - Other Topics ; Materials Science |
| 语种 | 英语 |
| 出版者 | MDPI |
| WOS记录号 | WOS:000522456300128 |
| 资助机构 | National Natural Science Foundation of China ; Anhui Provincial Natural Science Foundation ; Anhui Province Scientific and Technological Project |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/103343]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Xia, Weidong |
| 作者单位 | 1.Univ Sci & Technol China, Dept Mat Sci & Engn, Hefei 230027, Peoples R China 2.Univ Sci & Technol China, Dept Thermal Sci & Energy Engn, Hefei 230027, Peoples R China 3.Chinese Acad Sci, Hefei Inst Phys Sci, Hefei 230031, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Cheng,Song, Ming,Chen, Xianhui,et al. Effects of Buffer Gases on Graphene Flakes Synthesis in Thermal Plasma Process at Atmospheric Pressure[J]. NANOMATERIALS,2020,10. |
| APA | Wang, Cheng,Song, Ming,Chen, Xianhui,Li, Dongning,Xia, Weiluo,&Xia, Weidong.(2020).Effects of Buffer Gases on Graphene Flakes Synthesis in Thermal Plasma Process at Atmospheric Pressure.NANOMATERIALS,10. |
| MLA | Wang, Cheng,et al."Effects of Buffer Gases on Graphene Flakes Synthesis in Thermal Plasma Process at Atmospheric Pressure".NANOMATERIALS 10(2020). |
入库方式： OAI收割
来源：合肥物质科学研究院
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