caa a22 4500 477049346 CHVBK 20180405111338.0 cr unu---uuuuu 170330e19960901xx s 000 0 eng 10.1007/BF00242043 doi (NATIONALLICENCE)springer-10.1007/BF00242043 Influence of anode material on current yields during ferrate( vi ) production by anodic iron dissolution Part I: Current efficiency during anodic dissolution of grey cast iron to ferrate( vi ) in concentrated alkali hydroxide solutions [Elektronische Daten] [K. Bouzek, I. Roušar] Current efficiency for the oxidation of a grey cast iron anode to ferrate(vi) in 14 m NaOH was measured in the region of bubble induced convection. The maximum current yield, obtained after 180 min of electrolysis, had a value of 11% at a current density of 32 mA cm−2 and a temperature of 20°C. The ferrate(vi) current yield increased throughout the whole current density range under study (from 1 to 36 mA cm−2). The iron anode was activated by cathodic prepolarization. The iron concentration in lower oxidation states in the solution after electrolysis was constant within experimental error over the whole temperature range under study. The quasisteady state anodic polarization curve for grey cast iron in the transpassive potential region was measured. This anodic polarization curve was shifted to more negative potential, at the same current density, compared to the potential of the mild steel anode. Chapman & Hall, 1996 Bouzek K. Department of Inorganic Technology, Prague Institute of Chemical Technology, 166 28, Prague 6, Czech Republic aut Roušar I. Department of Inorganic Technology, Prague Institute of Chemical Technology, 166 28, Prague 6, Czech Republic aut Journal of Applied Electrochemistry Kluwer Academic Publishers 26/9(1996-09-01), 919-923 0021-891X 26:9<919 1996 26 10800 https://doi.org/10.1007/BF00242043 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00242043 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Bouzek K. Department of Inorganic Technology, Prague Institute of Chemical Technology, 166 28, Prague 6, Czech Republic aut NATIONALLICENCE 700 1- Roušar I. Department of Inorganic Technology, Prague Institute of Chemical Technology, 166 28, Prague 6, Czech Republic aut NATIONALLICENCE 773 0- Journal of Applied Electrochemistry Kluwer Academic Publishers 26/9(1996-09-01), 919-923 0021-891X 26:9<919 1996 26 10800 Metadata rights reserved Springer special CC-BY-NC licence nationallicence SWISSBIB 477049249 BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer