Free radicals promote electrocatalytic nitrogen oxidation.

ABSTRACT: In this work, we introduce hydroxyl radicals into the electrocatalytic nitrogen oxidation reaction (NOR) for the first time. Cobalt tetroxide (Co₃O₄) acts not only as an electrocatalyst, but also as a nanozyme (in combination with hydrogen peroxide producing ˙OH), and can be used as a high-efficiency nitrogen oxidation reaction (NOR) electrocatalyst for environmental nitrate synthesis. Co₃O₄ + ˙OH shows an excellent nitrogen oxidation reaction (NOR) performance among Co₃O₄ catalysts in 0.1 M Na₂SO₄ solution. At an applied potential of 1.7 V vs. RHE, the HNO₃ yield of Co₃O₄ + ˙OH reaches 89.35 μg h^-1 mg_cat ^-1, which is up to 7 times

SUBMITTER: Wang Z 

PROVIDER: S-EPMC9930917 | biostudies-literature | 2023 Feb

REPOSITORIES: biostudies-literature