The reference electrode used in the experiment is reversible hydrogen reference electrode rhe, in which the solution is H2SO4 with the same concentration as the experimental solution in the electrolytic cell, which is connected by capillary between the working electrode and the reference electrode; at the same time, observe the change of the hydrogen absorption and desorption site of the electrode material, observe the dynamic evolution of the hydrogen evolution reaction at the p-mo2c interface, and analyze the electrochemical reaction mechanism.<br>
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