Morphology Change Of Si Deposit In Molten Salt Electrorefining

• Autorzy: Ryu H. Y. , Kwon S. C. , Han M. H. , An Y. S. , Lee J. S. , Lee J. H.

Identyfikatory

DOI

10.1515/amm-2015-0159

Warianty tytułu

PL

Zmiana morfologii osadu Si podczas elektrorafinacji w stopionych solach

• Języki publikacji: EN

Abstrakty

EN

The effects of processing parameters on the morphology change in a Si deposit recovered by means of molten salt electrorefining are evaluated using electrochemical techniques such as cyclic voltammetry and chronopotentiometry at 800°C. It was found that concentration of K₂SiF₆ and current density were important parameters in determining deposit size. Higher concentrations of K₂SiF₆ were effective in coarsening the silicon deposit and decreasing the cell potential. Silicon nanofiber was recovered at 5 wt% of K₂SiF₆ whereas dense particles were prepared at 30 and 50 wt% of K₂SiF₆. The morphology of the Si deposit was determined by the concentration of Si in the electrolyte which is related to the formation of crystal and growth of Si. The formation mechanism of the Si deposit was interpreted by using high resolution TEM as well as electrochemical properties.

Słowa kluczowe

EN

molten salt; silicon; morphology; electrorefining; current density

PL

sól stopiona; krzem; morfologia; elektrorafinacja; gęstość prądu

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2015
• Tom: Vol. 60, iss. 2B
• Strony: 1491--1497
• Opis fizyczny: Bibliogr. 15 poz., rys.

Twórcy

autor

Ryu H. Y.

• Graduate School of Energy Science and Technology

autor

Kwon S. C.

• Graduate School of Energy Science and Technology

autor

Han M. H.

• Graduate School of Energy Science and Technology

autor

An Y. S.

• Energy Materials Center, Korea Institute of Energy Research, 152 Gajeong-Ro, Yuseong-Gu, 305-343, Daejeon, Republic of Korea

autor

Lee J. S.

• Energy Materials Center, Korea Institute of Energy Research, 152 Gajeong-Ro, Yuseong-Gu, 305-343, Daejeon, Republic of Korea

autor

Lee J. H.

• Graduate School of Energy Science and Technology
• Department of Nanomaterials Engineering, Chungnam National University, 79 Daehak-Ro, Yuseong-Gu, 305-764, Daejeon, Republic of Korea

Bibliografia

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Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.