Ontology highlight
ABSTRACT:
SUBMITTER: Zhou J
PROVIDER: S-EPMC7181785 | biostudies-literature | 2020 Apr
REPOSITORIES: biostudies-literature
Zhou Jing J Zhang Linjuan L Huang Yu-Cheng YC Dong Chung-Li CL Lin Hong-Ji HJ Chen Chien-Te CT Tjeng L H LH Hu Zhiwei Z
Nature communications 20200424 1
The ability to determine the electronic structure of catalysts during electrochemical reactions is highly important for identification of the active sites and the reaction mechanism. Here we successfully applied soft X-ray spectroscopy to follow in operando the valence and spin state of the Co ions in Li<sub>2</sub>Co<sub>2</sub>O<sub>4</sub> under oxygen evolution reaction (OER) conditions. We have observed that a substantial fraction of the Co ions undergo a voltage-dependent and time-dependen ...[more]