Review and theoretical analysis of ac-av methods for the investigation of hydrogen insertion Part III. Comparison of entry side impedance, transfer function and transfer impedance methods
C. Montella, Review and theoretical analysis of ac-av methods for the investigation of hydrogen insertion Part III. Comparison of entry side impedance, transfer function and transfer impedance methods, J ELEC CHEM, 480(1-2), 2000, pp. 166-185
The alternating current-voltage methods proposed in the electrochemical lit
erature to investigate hydrogen insertion and diffusion in metals and alloy
s are discussed and compared, based on the theoretical expressions for the
entry side impedance, potential and current density transfer functions and
transfer impedances. In particular, the conditions for the determination of
the hydrogen concentration, the diffusion coefficient and the insertion ra
te constant from experimental data are analysed theoretically in relation t
o the electrode or membrane type and the electrical method considered. (C)
2000 Elsevier Science S.A. All rights reserved.