Unusual synergistic effect in layered Ruddlesden-Popper oxide enables ultrafast hydrogen evolution.

ABSTRACT: Efficient electrocatalysts for hydrogen evolution reaction are key to realize clean hydrogen production through water splitting. As an important family of functional materials, transition metal oxides are generally believed inactive towards hydrogen evolution reaction, although many of them show high activity for oxygen evolution reaction. Here we report the remarkable electrocatalytic activity for hydrogen evolution reaction of a layered metal oxide, Ruddlesden-Popper-type Sr₂RuO₄ with alternative perovskite layer and rock-salt SrO layer, in an alkaline solution, which is comparable to those of the best electrocatalysts ever reported. By theoretical calculations, such excellent activity is attributed mainly to an unusual synergistic effect in the layered structure, w

SUBMITTER: Zhu Y 

PROVIDER: S-EPMC6329747 | biostudies-literature | 2019 Jan

REPOSITORIES: biostudies-literature