For metal Pt, Pt hads bond of moderate strength (∆ G_ (H ^ *) = -0.08 EV) has better her activity. This kind of volcanic curve formed by constructing the adsorption binding energy of activity and reaction intermediates on the catalyst surface is a general rule in catalytic reaction, that is, when the intermediates have moderate adsorption bond strength and coverage, they will have the highest reaction rate, which provides guidance for the design of efficient catalysts.<br>
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