Affiliation:
1. University of the Chinese Academy of Sciences
Abstract
Abstract
Liquid junction potential (LJP) is an important term in electrochemical system. As known, LJP is caused by the different diffusion ration of cations and anions. We found that in most textbooks and literatures, the value of LJP was expressed as a function of ions transfer numbers, rather than diffusion coefficients. This makes students feel confused. In the present work, based on the force equilibrium of ions at the liquid-liquid interface, an equation including the diffusion coefficient is given to highlight the physical cause of LJP.
Publisher
Research Square Platform LLC
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