Formation and reduction of anodic film on polycrystalline Bi electrode in pure methanol solutions
DOI:
https://doi.org/10.5599/jese.689Keywords:
Anodic film formation, bismuth, methanol, methoxylationAbstract
The processes of film formation and reduction of bismuth in pure methanol are phenomenologically studied by means of cyclic, ac voltammetric and electrochemical impedance spectroscopic methods. Film formation takes place under low electrode potentials within the potential range from -0.1 to about 0.2 V vs. Ag|AgCl resulting in the development of Bi(CH3O)ads layer. The scan rate effect on the anodic current profile is interpreted in terms of a gradual variation of uncompensated resistance, accompanying the processes of film formation and reduction. Phase sensitive ac voltammetry measurements suggest leaky insulating character of a thin anodic film in agreement with the results of electrochemical impedance experiments.
Downloads
References
J. Banas, B. Stypula, K. Banas, J. Światowska-Mrowiecka, M. Starowicz, U. Lelek-Borkowska, Journal of Solid State Electrochemistry 13 (2009) 1669-1679.
J. Światowska-Mrowiecka, J. Banas, Electrochimica Acta 50 (2005) 1829-1840.
A. Papaderakis, A.G. Anastopoulos, S. Sotiropoulos, Journal of Electroanalytical Chemistry 783 (2016) 217-225.
J. W. Schultze, M. M. Lohrengel, Electrochimica Acta 45 (2000) 2499-2513 .
D. E. Williams, G. A. Wright, Electrochimica Acta 22 (1977) 505-508.
B. V. Tilak, R. S. Perkins, H. A. Kozlowska, B.E.Conway, Electrochimica Acta 17 (1972) 1447-1469.
M. Metikoš-Huković, Electrochimica Acta 26 (1981) 989-1000.
M. Metikoš-Huković, Z. Grubac, The Journal of Physical Chemistry B 102 (1998) 7406-7412.
A. Bozatzidis, A.G. Anastopoulos, T. Laopoulos, Electroanalysis 19 (2007) 1711-1718.
A. J. Calandra, N. R. de Tacconi, R. Pereiro, A.J. Arvia, Electrochimica Acta 19 (1974) 901-905.
S. Kapusta, N. Hackerman, Electrochimica Acta 25 (1980) 949-955.
M. Šeruga, M. Metikoš-Huković, Journal of Electroanalytical Chemistry 334 (1992) 223-240.
Z. Grubač, M. Metikoš-Huković, Electrochimica Acta 43 (1998) 3175-3181.
D. E. Williams, G. A. Wright, Electrochimica Acta 21 (1976) 1009-1019.
K. Lust, M. Väärtnõu, E. Lust, Electrochimica Acta 45 (2000) 3543-3554.
U. Stimming, J. W. Schultze, Berichte der Bunsengesellschaft für physikalische Chemie 80 (1976) 1297-1302.
B. A. Boukamp, Solid State Ionics 18-19 (1986) 136-140.
A. Lasia, Electrochemical Impedance Spectroscopy and its Applications, Springer, New York, USA, 2014.
