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Mechanism of phosphorus removal from Si-Al melt by hydrogen

文献类型：期刊论文

作者Li, Jingwei5,6; Yu, Wenqing6; Lin, Yinhe1; Li, Juncheng2; Ban, Boyuan4; Chen, Jian4; Guo, Fuling3; Shi, Chengwu3; Tang, Wenming6
刊名INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
出版日期2024-06-19
卷号71
关键词Metallurgical grade silicon Al-Si melt Ar-H 2 mixture phosphorus removal Mass transfer coefficient
ISSN号0360-3199
DOI10.1016/j.ijhydene.2024.05.103
通讯作者Li, Jingwei(jwli@hfut.edu.cn) ; Guo, Fuling(fuling.guo@hfut.edu.cn)
英文摘要Phosphorus is a critical impurity in solar cell that deteriorates the photovoltaic convection efficiency of solar cell. Phosphorus removal from metallurgical grade silicon by injecting H2 and Ar-50%H2 mixture during the Al-Si solvent refining was investigated. With gas injecting into the Al-Si melt, the phosphorus concentration in the refined Si decreased with an increase of the injecting time. When the gas injecting time was 2.5 h, the removal fraction of phosphorus increased to 93%, an improvement of 63% compared with 57% without Ar-H2 injection. The effects of H2 proportion, gas refining temperature, and Si proportion in the alloy were investigated. The kinetics of phosphorus removal with Ar-H2 injection were clarified. The mass transfer coefficient of phosphorus was 9.07 x 10-9 m/s during the Ar-H2-assisted solvent refining process. Three mechanisms of phosphorus removal were discussed for this gas-solvent composite refining process. These results demonstrate that H2 or Ar-H2 gas injecting treatment is an effective strategy to further improve the phosphorus removal and reduce the cost during Al-Si solvent refining.
WOS关键词METALLURGICAL-GRADE SILICON ; BORON REMOVAL ; DIRECTIONAL SOLIDIFICATION ; P REMOVAL ; KINETICS ; PURIFICATION ; SOLUBILITY
资助项目Project of the State Key Laboratory of Refractories and Metallurgy[G201910] ; National Natural Science Foundation of China[51874272] ; National Natural Science Foundation of China[52111540265] ; Chongqing Municipal Natural Science Foundation[cstc2020jcyj-msxmX0060] ; Key research and development plan of Anhui Province[2022l07020037] ; Liangshan Science and Technology Program[23ZDYF0173] ; Liangshan Science and Technology Program[23ZDYF0156] ; Science and technology project of Xichang[JSYJ-2023-16] ; Basic operating expenses project of central universities[PA2022GDGP0029] ; Basic operating expenses project of central universities[PA2023GDGP0042]
WOS研究方向Chemistry ; Electrochemistry ; Energy & Fuels
语种英语
WOS记录号WOS:001244573400001
出版者PERGAMON-ELSEVIER SCIENCE LTD
资助机构Project of the State Key Laboratory of Refractories and Metallurgy ; National Natural Science Foundation of China ; Chongqing Municipal Natural Science Foundation ; Key research and development plan of Anhui Province ; Liangshan Science and Technology Program ; Science and technology project of Xichang ; Basic operating expenses project of central universities
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/136221]  
专题中国科学院合肥物质科学研究院
通讯作者Li, Jingwei; Guo, Fuling
作者单位1.Yangtze Normal Univ, Sch Chem & Chem Engn, Chongqing 408000, Peoples R China
2.Yunnan Normal Univ, Coll Energy & Environm Sci, Kunming 650500, Peoples R China
3.Hefei Univ Technol, Sch Chem & Chem Engn, Hefei 230009, Peoples R China
4.Chinese Acad Sci, Key Lab Photovolta & Energy Conservat Mat, Inst Solid State Phys, HFIPS, Hefei 230031, Peoples R China
5.Wuhan Univ Sci & Technol, State Key Lab Refractories & Met, Wuhan 430081, Peoples R China
6.Hefei Univ Technol, Sch Mat Sci & Engn, Engn Res Ctr High Performance Copper Alloy Mat &, Minist Educ, Hefei 230009, Peoples R China
推荐引用方式
GB/T 7714		 Li, Jingwei,Yu, Wenqing,Lin, Yinhe,et al. Mechanism of phosphorus removal from Si-Al melt by hydrogen[J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,2024,71.
APA Li, Jingwei.,Yu, Wenqing.,Lin, Yinhe.,Li, Juncheng.,Ban, Boyuan.,...&Tang, Wenming.(2024).Mechanism of phosphorus removal from Si-Al melt by hydrogen.INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,71.
MLA Li, Jingwei,et al."Mechanism of phosphorus removal from Si-Al melt by hydrogen".INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 71(2024).

入库方式： OAI收割

来源：合肥物质科学研究院

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