“…Hydrogen peroxide (H 2 O 2 ), a high-value oxidant, is used vastly in industry, including wastewater treatment, paper manufacturing, and chemical synthesis . Its industrial production still requires a centralized and costly anthraquinone process operating in large plants, which also involves multistep redox reactions with unwanted organic wastes. − H 2 O 2 can also be directly produced from H 2 and O 2 ; however, the H 2 and O 2 mixture involves explosion risks. , Two-electron (2e – ) electroreduction of O 2 into H 2 O 2 in an aqueous environment provides a safe, sustainable, and energy-saving approach for on-demand production, but the electrochemical reduction of O 2 preferentially proceeds via the four-proton and four-electron reduction routes to generate water, posing a formidable challenge for catalysts to promote the 2e – pathway. − …”