Open Circuit Potential

Views Updated: Dec 15, 2025

Abbreviation

OCP

Pronunciation

/ˈoʊpən ˈsərkət pəˈtɛnʃəl/

Cathodic reaction rate at open circuit Potential for iron in sulfuric acid containing dichromate ion was controlled by both electron transfer process and diffusion process.
The instrument is integrated with a multi-channel high precision open circuit potential measurement system for the ion selective electrode and a potentiostat used in voltammetry, an analog lock-in amplifier is also presented to measure the response of light addressable potential sensor.
Mathematical grey-box interrelation analysis method was used to study the correlation between five selected alloy elements and open circuit potential, working potential, anode depletion rate, coating consume thickness, current efficiency and corrosion uniformity.
The open circuit potential, potentiodynamic scanning polarization and surface analysis methods were employed to investigate the effect of Cladosporium on the corrosion behaviors of A3 steel.
When palladium as the substate, higher open circuit potential and stronger corrosion resistance were found.

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