@inproceedings{bb6b2a3f092b409dbfd67e0ed66f1039,
title = "A new electrolytic production process of silicon using liquid Zn alloy cathode in molten salt",
abstract = "Electrolytic production process for solar-grade Si utilizing liquid Si-Zn alloy cathode in molten CaCl2 has been proposed. Toward the establishment of the process, the behavior of liquid Zn metal was investigated in molten CaCl2 at 1123 K. The evaporation of Zn metal was largely suppressed by an immersion into molten salt, which enables the use of Zn electrode in spite of the high vapor pressure of Zn. The cyclic voltammetry suggested the reduction of SiO2 at 1.45 V vs. Ca2+/Ca on a Zn cathode. After the potentiostatic electrolysis at 0.9 V, Si particles with diameters of 2-30 μm were precipitated in the solidified Zn matrix by the slow cooling process of the produced liquid Si-Zn alloy. The alloying rate between solid Si and liquid Zn was measured as 4.56 μm s-1, and it linearly decreased with the Si content in liquid Zn phase.",
author = "Toshiyuki Nohira and Akifumi Ido and Takeyuki Shimao and Xiao Yang and Kouji Yasuda and Rika Hagiwara and Takayuki Homma",
note = "Funding Information: This study was partly supported by Core Research for Evolutionary Science and Technology (CREST) from Japan Science and Technology Agency (JST), Grants-in-Aid for Scientific Research A from the Japan Society for the Promotion of Science (JSPS), The Japan Prize Foundation, and Kato Foundation for Promotion of Science. The purified SiO2 granules were supplied by Taiheiyo Cement Corporation; Symposium on Molten Salts and Ionic Liquids 20 - PRiME 2016/230th ECS Meeting ; Conference date: 02-10-2016 Through 07-10-2016",
year = "2016",
doi = "10.1149/07515.0017ecst",
language = "English",
series = "ECS Transactions",
publisher = "Electrochemical Society Inc.",
number = "15",
pages = "17--33",
editor = "Haverhals, {L. M.} and Mantz, {R. A.} and Trulove, {P. C.} and M. Ueda and M. Carter and Biddinger, {E. J.} and Suroviec, {A. H.} and M. Reichert and F. Endres and A. Bund and A. Ispas and Fox, {D. M.} and {De Long}, {H. C.}",
booktitle = "Molten Salts and Ionic Liquids 20",
edition = "15",
}