Iridium metallene oxide for acidic oxygen evolution catalysis.

ABSTRACT: Exploring new materials is essential in the field of material science. Especially, searching for optimal materials with utmost atomic utilization, ideal activities and desirable stability for catalytic applications requires smart design of materials' structures. Herein, we report iridium metallene oxide: 1 T phase-iridium dioxide (IrO₂) by a synthetic strategy combining mechanochemistry and thermal treatment in a strong alkaline medium. This material demonstrates high activity for oxygen evolution reaction with a low overpotential of 197 millivolt in acidic electrolyte at 10 milliamperes per geometric square centimeter (mA cm_geo^-2). Together, it achieves high turnover frequencies of 4.2 s_UPD^-1 (3.0 s_BET^-1) at 1.50

SUBMITTER: Dang Q 

PROVIDER: S-EPMC8516950 | biostudies-literature | 2021 Oct

REPOSITORIES: biostudies-literature