2D Ferromagnetic M₃GeTe₂ (M = Ni/Fe) for Boosting Intermediates Adsorption toward Faster Water Oxidation.

ABSTRACT: In this work, 2D ferromagnetic M₃GeTe₂ (MGT, M = Ni/Fe) nanosheets with rich atomic Te vacancies (2D-MGT_v) are demonstrated as efficient OER electrocatalyst via a general mechanical exfoliation strategy. X-ray absorption spectra (XAS) and scanning transmission electron microscope (STEM) results validate the dominant presence of metal-O moieties and rich Te vacancies, respectively. The formed Te vacancies are active for the adsorption of OH* and O* species while the metal-O moieties promote the O* and OOH* adsorption, contributing synergistically to the faster oxygen evolution kinetics. Consequently, 2D-Ni₃GeTe_2v exhibits superior OER activity with only 370 mV overpotential to reach the current density of 100 mA cm^-2 and turn

SUBMITTER: Bo G 

PROVIDER: S-EPMC11151052 | biostudies-literature | 2024 Jun

REPOSITORIES: biostudies-literature