Structural Design of Oxygen Reduction Redox Mediators (ORRMs) Based on Anthraquinone (AQ) for the Li-O2Battery

Xiang Bin Han, Shen Ye

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

A series of oxygen reduction redox mediators (ORRMs) based on anthraquinone (AQ) has been developed for the lithium-oxygen (Li-O2) battery on the basis of a strategy to control the reduction potentials of the AQ moiety. It was found that the discharge capacity of the Li-O2 battery can be significantly improved by introducing electron-withdrawing groups into the AQ moiety, which can positively move the reduction potential of the AQ derivatives. By the introduction of two nitro (NO2) groups to the AQ moieties, an approximate 45-fold increase in the discharge capacity has been realized with a high discharge potential. Furthermore, we found that the water molecule from the oxygen environment exhibits a dramatic synergistic effect with the ORRM on the discharge capacity of the Li-O2 battery.

Original languageEnglish
Pages (from-to)9790-9803
Number of pages14
JournalACS Catalysis
Volume10
Issue number17
DOIs
Publication statusPublished - 2020 Sep 4

Keywords

  • ORRM
  • anthraquinone (AQ)
  • reduction potential
  • substituent effect
  • synergistic effect
  • water

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)

Fingerprint Dive into the research topics of 'Structural Design of Oxygen Reduction Redox Mediators (ORRMs) Based on Anthraquinone (AQ) for the Li-O<sub>2</sub>Battery'. Together they form a unique fingerprint.

Cite this