Plasma engraved Bi_0.1(Ba_0.5Sr_0.5)_0.9Co_0.8Fe_0.2O_3-δ perovskite for highly active and durable oxygen evolution.

ABSTRACT: The development of highly active and cost-effective catalysts based on noble metal free oxygen electro-catalysis is critical to energy storage and conversion devices. Herein, we highlight a plasma-treated Bi_0.1(Ba_0.5Sr_0.5)_0.9Co_0.8Fe_0.2O_3-δ perovskite (denoted as P-Bi_0.1BSCF) as a promising catalyst for oxygen evolution reaction (OER) in alkaline media. H₂/Ar plasma engraving could significantly increase electrochemically active O₂^2-/O^- concentration and tune the electronic structure of Co ions efficiently, and consequently tailor the intrinsic electrocatalytic ability for OER. Of note, P-Bi_0.1BSCF, with unique crystalline core/amorphous shell struct

SUBMITTER: Sun J 

PROVIDER: S-EPMC6414661 | biostudies-literature | 2019 Mar

REPOSITORIES: biostudies-literature