Pressure-dependent synthesis of graphene nanoflakes using Ar/H-2/CH4 non-thermal plasma based on rotating arc discharge
文献类型：期刊论文
| 作者 | Wang, Cheng1; Lu, ZhongShan1; Ma, Jing1; Chen, Xianhui1; Yang, Chengpeng2; Xia, Weidong1 |
| 刊名 | DIAMOND AND RELATED MATERIALS
 |
| 出版日期 | 2021 |
| 卷号 | 111 |
| ISSN号 | 0925-9635 |
| 关键词 | Graphene nanoflakes Non-thermal plasma Rotating arc discharge Pressure effect Carbonaceous radicals |
| DOI | 10.1016/j.diamond.2020.108176 |
| 通讯作者 | Xia, Weidong(xiawd@ustc.edu.cn) |
| 英文摘要 | Non-thermal plasma can be used for the continuous synthesis of graphene nanoflakes. In this paper, the influence of pressure on graphene nanoflake synthesis was studied in an Ar/H-2/CH4 non-thermal plasma based on rotating arc discharge. Graphene nanoflakes were fabricated by CH4 decomposition in a pressure range of 20-200 kPa, and their properties were analyzed multiple characterization methods. The results showed that pressure affected the product properties and yield. From 60 to 200 kPa, all products were graphene nanoflakes with sizes of 50-300 nm and 1-20 graphite layers. A relatively high pressure favored the formation of graphene nanoflakes in high yield, with good crystalline structures, low oxygen contents, and excellent thermal stability. A low pressure promoted the formation of graphene nanoflakes with fewer layers and larger specific surface areas. Also, at a lower pressure (20 kPa), small spherical particles (3-8 nm diameter), similar to carbon dots, emerged on the graphene nanoflakes. Correlations between process parameters and characterization results suggested that different concentrations of carbonaceous radicals in the plasma zone affected the product characteristics. |
| WOS关键词 | FEW-LAYER GRAPHENE ; CARBON NANOMATERIALS ; HYDROGEN ; METHANE ; SPECTROSCOPY ; GRAPHITE ; GAS ; MECHANISMS ; DISORDER ; DOTS |
| 资助项目 | National Natural Science Foundation of China[12075242] ; National Natural Science Foundation of China[11675177] ; National Natural Science Foundation of China[11705202] ; Anhui Provincial Natural Science Foundation[1808085MA12] ; Anhui Province Scientific and Technological Project[1604a0902145] |
| WOS研究方向 | Materials Science ; Physics |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCIENCE SA |
| WOS记录号 | WOS:000612813800012 |
| 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/334002/120158]  |
| 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 Thermal Sci & Energy Engn, Hefei 230027, Peoples R China 2.Chinese Acad Sci, Hefei Inst Phys Sci, Hefei 230031, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Cheng,Lu, ZhongShan,Ma, Jing,et al. Pressure-dependent synthesis of graphene nanoflakes using Ar/H-2/CH4 non-thermal plasma based on rotating arc discharge[J]. DIAMOND AND RELATED MATERIALS,2021,111. |
| APA | Wang, Cheng,Lu, ZhongShan,Ma, Jing,Chen, Xianhui,Yang, Chengpeng,&Xia, Weidong.(2021).Pressure-dependent synthesis of graphene nanoflakes using Ar/H-2/CH4 non-thermal plasma based on rotating arc discharge.DIAMOND AND RELATED MATERIALS,111. |
| MLA | Wang, Cheng,et al."Pressure-dependent synthesis of graphene nanoflakes using Ar/H-2/CH4 non-thermal plasma based on rotating arc discharge".DIAMOND AND RELATED MATERIALS 111(2021). |
入库方式： OAI收割
来源：合肥物质科学研究院
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