The results of galvanostatic electrolysis are described for electrocrystalysation of zinc and nickel dendritic deposits on rod laboratory electrode. The experimental results are explained on the base of simulating description. The values of deposit structural parameters for both dendritic deposits are compared with the results of REM- and metallographic data. The common regularities for dendritic growth are explained by electrolysis regime while structural distinctions are connected with different kinetic parameters of cathode reductions for these metals so as with varied depth of surface adatom’s diffusion and crystallographic features of used metals.
гальваностатический электролиз, дендритный осадок, цилиндрический электрод, структура порошка, микрофотографии, galvanostatic electrolysis, dendritic deposit, growth dynamics, model description, current efficiency, structural parameters
1. Neikov, O. D. Handbook of non-ferrous metal powders. Technologies and applications / O. D. Neikov, S. S. Nabojchenko, I. B. Murashova, V. G. Gopienko, I. V. Frishberg, D. V. Lotsko; ed. by O. D. Neikov. - London, N-Y, Amsterdam: Elsevier, 2009. - 634 p.
2. Murashova, I. B. Elektroosazhdenie metallov v vide dendritov / I. B. Murashova, A. V. Pomosov // Itogi nauki. VINITI. Elektrohimiya. - 1989. - T. 30. - S. 55-111.
3. Murashova, I. B. Faktory, opredelyayuschie rost dendritov osadka iz vodnyh rastvorov v gal'vanostaticheskih usloviyah / I. B. Murashova, A. V. Pomosov // Novye metody polucheniya metallicheskogo poroshka: sb. statey / Kiev: IPM AN USSR, 1981. - S. 92-97.
4. Spravochnik po elektrohimii / Pod red. A. M. Suhotina. - L.: Himiya, 1981. - 488 s.
5. Ostanina, T. N. Dinamika rosta dendritnyh osadkov svinca na cilindricheskom elektrode/ T. N. Ostanina, I. B. Murashova, E. E. Kuz'mina // Elektrohimiya. - 1996. - T. 32. - S. 1329-1333.
6. Murashova, I. B. Analiz dinamiki rosta dendritnogo mednogo osadka v rastvore sul'fata medi / I. B. Murashova, A. B. Darinceva, V. M. Rudoy // Elektrohimiya. - 2010. - T. 46. - S. 651-656.
7. Murashova, I. B. Ob eksperimental'nom opredelenii predel'noy diffuzionnoy plotnosti toka elektroosazhdeniya medi / I. B. Murashova, A. V. Pomosov, N. R. Yuhova // Izvestiya VUZov. Himiya i him.tehnologiya. - 1980. - T. 23. - V. 7. - S. 869-873.
8. Yakubova, T. V. Modelirovanie elektrokristallizacii ryhlogo osadka iz vodnyh rastvorov. Lokalizaciya reakcii vosstanovleniya vodoroda i puti ego udaleniya / T. V. Yakubova, I. B. Murashova // Elektrohimiya. - 1995. - T. 31. - S. 483-486.
9. Galyus, Z. Teoreticheskie osnovy elektrohimicheskogo analiza / Z. Galyus. - M: Mir, 1976. - 416 s.
10. Despic, A. R. Electrocrystallisation of zinc from zincate solution / A. R. Despic, J. W. Diggle, J. O'M. Bockris // J. of Electrochemical Society. - 1968. - V. 115. - #4. - P. 507-511.