Ruthenium‐Catalyzed Electrochemical Ketone Hydrogenation to Secondary Alcohols with High Activity and Selectivity Under Ambient Conditions

/C can simultaneously promote generation of reactive hydrogen species and adsorption of ketone molecules, facilitating rapid transfer of reactive hydrogen species to adsorbed ketone molecules, thereby enabling efficient secondary alcohols formation and suppressing HER. This work opens a green and sustainable pathway for ketone upgrading.