Вид документа : Статья из журнала Шифр издания : Автор(ы) : Store T., Haarberg G. M., Tunold R. Заглавие : Determination of diffusion coefficients of depositing ions in molten chlorides by transient electrochemical techniques Место публикации : Journal of Applied Electrochemistry. - 2000. - V. 30, N 12. - С. 1351-1360. - ISSN 0021-891X. - ISSN 0021-891X Примечания : Bibliogr: p. 1360 (19 ref.) ББК : 54 Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ Ключевые слова (''Своб.индексиров.''): коэффициенты диффузии--электроосаждение--расплавленные хлориды--хлориды расплавленные--хлоридные расплавы--расплавы хлоридные--вольтамперометрия--kcl-licl--k--li--хлорид калия--хлорид лития--калий--литий--k--li--kcl--химия Аннотация: The electrochemical reduction of Pb(2), Zn(2) and Mg(2) ions at glassy carbon and tungsten electrodes in molten KCl-LiCl eutectic was studied by linear sweep voltammetry (LSV), convolutive potential sweep voltammetry (CPSV), chronopotentiometry and chronoamperometry. In the case of lead deposition, the initial nucleation stage was found to influence the shape of the voltammetric current peak. CPSV was consequently believed to be a more reliable method than LSV for the calculation of the diffusion coefficient of the Pb(2) ion. Similar complications were not observed for zinc and magnesium since the nucleation overpotentials for these metals were significantly lower than for lead. On the other hand, lithium codeposition made it difficult to interpret the zinc and especially the magnesium convolution voltammograms Доп.точки доступа: Haarberg, G. M.; Tunold, R.