Hydrogen Wave by a Potential Sweep Technique

Hydrogen dissociatively adsorbs on many metals from the gas phase, especially on those which are catalytically active.In electrochemical sys- 

this amount has been shown to agree with the true surface area measured by means of the BET method, providing a simple and convenient means for evaluating in situ the true surface area of the electrode or knowing the effective area after a fraction of the electrode surface has been covered with some inert substance, e.g., as in electrosorption of organics. 

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