Charge transport properties of cryolite–silica melts

Structural correlations and chemistry of the Na3AlF6 − SiO2 melt as an electrolyte for the solar grade silicon (SOG − Si) electrowinning

“…1. 27 Al HT-NMR spectra of Na 3 AlF 6 measured after 1, 2, 2.5, and 3 minutes from the start of heating.…”

“…Some studies on electrochemistry of some fluoride and chloride systems have been published in the seventies and eighties of the 20 th century [4−6]. Also, in recent years, one can see an increasing interest in this field [7][8][9][10][11][12][13][14][15][16][17][18][19][20][21].…”

“…The process has not yet been, however, successfully commercialized due to the rather high melting point of silicon (1412 °C), prohibiting the production of liquid primary silicon at the temperatures usual for cryolitic electrolytes (ca 1000 °C). In addition, an accurate comprehension of the physicochemical behavior and the structure of different cryolite-based electrolytes (including the knowledge of the electroactive species), what is vital for industrial application, is also very scarce [24][25][26][27][28].…”

On the analysis of ionic mass transfer in the electrolytic bath of an aluminum reduction cell

“…[4][5][6][7] Transference number is defined as the fraction of current that each ion is carrying in multicomponent electrolytic solutions. [4][5][6][7] Transference number is defined as the fraction of current that each ion is carrying in multicomponent electrolytic solutions.…”

“…There have been some studies to estimate the ionic conductivity and transference number of each ion in the bath. [4][5][6][7] Transference number is defined as the fraction of current that each ion is carrying in multicomponent electrolytic solutions. In these studies, the mobility of the ions in the cell is also calculated in the absence of concentration gradient in the cell.…”