Kesong Yu

May 9, 2024 | nature.com | Kesong Yu |Jinsong Wu

AbstractImproving activity and stability of Ruthenium (Ru)-based catalysts in acidic environments is eager to replace more expensive Iridium (Ir)-based materials as practical anode catalyst for proton-exchange membrane water electrolyzers (PEMWEs). Here, a bicontinuous nanoreactor composed of multiscale defective RuO2 nanomonomers (MD-RuO2-BN) is conceived and confirmed by three-dimensional tomograph reconstruction technology.

Feb 5, 2024 | pubs.rsc.org | Ding Chen |Hongyu Zhao |Kesong Yu |Jiawei Zhu

Heteroanion induced structural asymmetricity centered on Ru sites switches the rate-determining step of acid water oxidation The exploration of Ir-free-based oxygen evolution reaction (OER) catalysts is the key for electrolytic hydrogen production. Herein, a Se, S heteroanion modulation strategy is proposed to improve OER activity and stability of cationic Ru sites through induced structural asymmetricity.