TY - JOUR
T1 - Voltammetric studies on the redox behaviour of Cr, Mn, Cu, Sb and As ions in Na2O-B2O3 melts
AU - Suzumura, Keita
AU - Kawamura, Katsuyuki
AU - Yokokawa, Toshio
PY - 1991/12/1
Y1 - 1991/12/1
N2 - The redox behaviour of Cr, Mn, Cu, Sb and As ions in Na2O-B2O3 melts has been studied using cyclic voltammetry, in which Cr6+/Cr3+, Mn3+/Mn2+, Cu2+/Cu+/Cu0, Sb5+/Sb3+/Sb0, and As5+/As3+/As0 redox reactions were observed. The relations between redox equilibria and the basicity of the solvent melts, i.e. an analogue of the Pourbaix diagram, are presented. The diffusion coefficients of Cr6+, Mn3+, Cu2+ and Sb5+ and the temperature dependences were evaluated.
AB - The redox behaviour of Cr, Mn, Cu, Sb and As ions in Na2O-B2O3 melts has been studied using cyclic voltammetry, in which Cr6+/Cr3+, Mn3+/Mn2+, Cu2+/Cu+/Cu0, Sb5+/Sb3+/Sb0, and As5+/As3+/As0 redox reactions were observed. The relations between redox equilibria and the basicity of the solvent melts, i.e. an analogue of the Pourbaix diagram, are presented. The diffusion coefficients of Cr6+, Mn3+, Cu2+ and Sb5+ and the temperature dependences were evaluated.
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U2 - 10.1039/FT9918700307
DO - 10.1039/FT9918700307
M3 - Article
AN - SCOPUS:0039359983
SN - 1463-9076
VL - 87
SP - 307
EP - 312
JO - Physical Chemistry Chemical Physics
JF - Physical Chemistry Chemical Physics
IS - 2
ER -