Voltammetric Studies of Na2O-NaCl Melts

Voltammetric studies of antimony ions in soda-lime-silica glass melts up to 1873 K.

The half wave potential of reduction of Sb5+ in 16Na2O x 10CaO x 74SiO2 glass melts was examined by differential pulse voltammetry up to 1873 K. The half wave potential shifted to the positive direction with an increase in temperature. The results indicate that the equilibrium of Sb5+/Sb3+ shifted to negative direction with an increase in temperature. The half wave potential shifted to positive...

Electrochemical Deposition of Aluminum from NaCl-AlCl3 Melts

Elec t rochemica l depos i t ion of a l u m i n u m from NaA1C14 melts sa turated wi th NaC1 onto a glassy carbon e lec t rode at 175~ has been s tudied by vo l tammetry , ch ronoamperomet ry , and cons tant current deposi t ion. The depos i t ion of alumin u m was found to proceed via a nuc lea t ion/growth mechan i sm, and the nuc lea t ion process was found to be progressive. The morpho logy...

Nucleation Studies on Ionic Melts

INTRODUCTION Previous work on crystal nucleation in one-component melts has largely been confined to molecular liquids or metals. Molecular liquids have been studied in bulk", and in the form of clouds of droplets produced by condensation in supersaturated vapourv". Metals have also been studied in bulk 7, 8, and as droplets of microscopic size. These were produced either singly by melting smal...

Hot Corrosion of Ti-Based Intermetallics with Coatings in NaCl+ (Na,K)2SO4 Melts at 750oC

In this study, the hot corrosion of TiAl, TiAlNb, and Ti3AlNb intermetallics with or without enamel coating and sputtered TiAlCr coating in (Na, K)2SO4 + NaCl melts at 750oC is investigated. The interfacial reaction between enamel and those alloys during hot corrosion has also been evaluated. The results indicate that severe corrosion of bare alloys occurs due to the self catalysis chlorination...

Stripping voltammetric behavior of nitrogen-doped tetrahedral amorphous carbon thin film electrodes in NaCl solutions