In-Situ Growth of CeO2 Nanoparticles on N-doped Reduced Graphene Oxide for Anchoring Li2O2 Formation in Lithium-Oxygen Batteries

Yuexing Jiang, Junfang Cheng, Lu Zou, Xinyu Li, Yingpeng Gong, Bo Chi*, Jian Pu, Jian Li

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

30 Citations (Scopus)

Abstract

The large overpotentials during oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) are still big challenges for the non-aqueous lithium-oxygen batteries. In this paper, CeO2 nanoparticles on N-doped reduced graphene oxide (CeO2@N-RGO) are in-situ synthesized through a one-step hydrothermal process as binder-free cathode catalyst. The battery with CeO2@N-RGO cathode delivers a capacity of 11,900 mAh g-1 at current density of 400 mA g-1, and can cycle up to 40 times without obvious degradation at the capacity limitation of 1000 mAh g-1. The performance enhancement of the battery can be attributed to the synergetic effect of N-RGO and CeO2 nanoparyicles anchoring the formation of Li2O2. The study confirms that CeO2@N-RGO can be a potential excellent cathode catalyst for ORR and OER for rechargeable lithium-oxygen batteries.

Original languageEnglish
Pages (from-to)712-719
Number of pages8
JournalElectrochimica Acta
Volume210
DOIs
Publication statusPublished - 2016 Aug 20
Externally publishedYes

Keywords

  • Ceria
  • Lithium peroxide anchoring
  • Lithium-oxygen batteries
  • Oxygen reduction reaction

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Electrochemistry

Fingerprint

Dive into the research topics of 'In-Situ Growth of CeO<sub>2</sub> Nanoparticles on N-doped Reduced Graphene Oxide for Anchoring Li<sub>2</sub>O<sub>2</sub> Formation in Lithium-Oxygen Batteries'. Together they form a unique fingerprint.

Cite this