Fabricating carbon quantum dots of graphitic carbon nitride vis ultrasonic exfoliation for highly efficient H₂O₂ production.

ABSTRACT: A promising and sustainable approach for producing hydrogen peroxide is the two-electron oxygen reduction reaction (2e^- ORR), which uses very stable graphitic carbon nitride (g-C₃N₄). However, the catalytic performance of pristine g-C₃N₄ is still far from satisfactory. Here, we demonstrate for the first time the controlled fabrication of carbon quantum dots (CQDs)-modified graphitic carbon nitride carbon (g-C₃N₄/CQDs-X) by ultrasonic stripping for efficient 2e^- ORR electrocatalysis. HRTEM, UV-vis, EPR and EIS analyses are in good consistent which prove the in-situ generation of CQDs. The effect of sonication time on the physical properties and ORR activity of g-C₃N₄ is discussed fo

SUBMITTER: Wang Y 

PROVIDER: S-EPMC10494465 | biostudies-literature | 2023 Sep

REPOSITORIES: biostudies-literature