Method and device for real-time synchronous tracking of hydrogen evolution amount and electrochemical testing

Abstract

The invention belongs to the field of electrochemistry, particularly relates to a method and device for real-time synchronous tracking of hydrogen evolution amount and electrochemical testing, and provides a method for synchronous tracking of hydrogen evolution amount and electrochemical testing and a device used in the method. The method can achieve real-time tracking. Firstly, two cameras are added on the basis of generating hydrogen through measuring electrode reaction, real-time camera shooting recording is carried out on the hydrogen evolution amount and the corrosion situation of the electrode surface, and a relationship between potential current change and the hydrogen evolution amount can be obtained at any time in an experiment by combing an electrochemical on-line monitoring system.

Description

technical field [0001] The application belongs to the field of electrochemistry, and specifically relates to a method and device for real-time synchronous tracking of hydrogen evolution and electrochemical testing. Background technique [0002] With the development of the economy, people pay more and more attention to the huge losses caused by corrosion to the national economy, and corrosion protection has become one of the important fields of modern scientific and technological research. With the advancement of science and technology, light metals such as aluminum, magnesium and other metals have been used more and more widely. Many researchers have begun to use electrochemical and other testing methods to explore the corrosion mechanism of metals and their alloys. [0003] When performing metal corrosion and various electrochemical tests, electrode reactions are often accompanied by the release of hydrogen gas. Corrosion phenomena can often be explained by the relationshi...

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Problems solved by technology

In this way, although the amount of hydrogen gas escaped can be measured intuitively, because the hydrogen gas escapes with water molecules, the measurement will be inaccurate and the experimental error will be increased.

In addition, the amount of hydrogen escaped is small, and the weight loss measurement requires a higher precision balance, so the measurement error is greater, and hydrogen cannot be collected for verification

[0005] Secondly, in the process of electrochemical real-time monitoring, the traditional weight loss can only measure the total weight loss of hydrogen gas, and cannot restore the relationship between the potential current and the amount of hydrogen evolution at each moment, so it is impossible to further explore the corrosion reaction mechanism

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