Improved Alkaline Hydrogen Evolution Performance of Dealloying Fe_75-xCo_xSi_12.5B_12.5 Electrocatalyst.

ABSTRACT: The electrocatalytic performance of a Fe₆₅Co₁₀Si_12.5B_12.5 Fe-based compounds toward alkaline hydrogen evolution reaction (HER) is enhanced by dealloying. The dealloying process produced a large number of nanosheets on the surface of NS-Fe₆₅Co₁₀Si_12.5B_12.5, which greatly increased the specific surface area of the electrode. When the dealloying time is 3 h, the overpotential of NS-Fe₆₅Co₁₀Si_12.5B_12.5 is only 175.1 mV at 1.0 M KOH and 10 mA cm^-2, while under the same conditions, the overpotential of Fe₆₅Co₁₀Si_12.5B_12.5 is 215 mV, which is reduced. In addition, dealloying treated electrodes also show better HE

SUBMITTER: Zhong SC 

PROVIDER: S-EPMC11397610 | biostudies-literature | 2024 Aug

REPOSITORIES: biostudies-literature