Efficient Electrosynthesis of Hydrogen Peroxide Enabled by a Hierarchical Hollow RE-P-O (RE = Sm, La, Gd) Architecture with Open Channels.

ABSTRACT: The electrochemical two-electron oxygen reduction reaction (2e^- ORR) offers a sustainable pathway for the production of H₂O₂; however, the development of electrocatalysts with exceptional activity, selectivity, and long-term stability remains a challenging task. Herein, a novel approach is presented to addressing this challenge by synthesizing hierarchical hollow SmPO₄ nanospheres with open channels via a two-step hydrothermal treatment. The produced compound demonstrates remarkable 2e^- selectivity, exceeding 93% across a wide potential range of 0.0-0.6 V in 0.1 m KOH, with a peak of 96% at 0.45 V. When employed as the cathode in a flow cell, the synthesized SmPO₄ exhibits impressive stability at 100 mA cm^-2 for 1

SUBMITTER: Liu Z 

PROVIDER: S-EPMC11837885 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature