Galvani potential

Galvani potential

Electrochemical Sensors

Published in P.J. Gellings, H.J.M. Bouwmeester, Electrochemistry, 2019

If the concentration of the mobile ions in the SIC (a(Xz+)SIC) is high, its activity can be considered to be constant and so the Galvani potential is directly related to the activity of ions in the analyzed solution (a(Xz+)sol). Figure 10.1a shows a schematic diagram of ϕ, µ, and p variations. The Galvani potential cannot be measured directly, and a longer thermodynamic chain is necessary up to both metal connections. A more detailed description is given later (see also Chapter 2 of this handbook).

On the Volta potential measured by SKPFM – fundamental and practical aspects with relevance to corrosion science

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Journal Information

Published in Corrosion Engineering, Science and Technology, 2019

Cem Örnek, Christofer Leygraf, Jinshan Pan

The Volta potential () and the Surface potential () form the so-called inner potential, also known as the Galvani potential (ϕ) (see Figure 2 [37,40]), and it describes the full electrostatic nature of a metal [14,15,37,40].

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Electrochemical Sensors

On the Volta potential measured by SKPFM – fundamental and practical aspects with relevance to corrosion science