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Nitrogen-Doped Perovskite as a Bifunctional Cathode Catalyst for Rechargeable Lithium-Oxygen Batteries

  • Jinbo Zhang
  • , Chaofeng Zhang
  • , Wei Li
  • , Qi Guo
  • , Hongcai Gao
  • , Ya You
  • , Yutao Li
  • , Zhiming Cui
  • , Ke Cheng Jiang
  • , Huijin Long
  • , Dawei Zhang*
  • , Sen Xin
  • *Corresponding author for this work
  • School of Chemistry and Chemical Engineering
  • Hefei University of Technology
  • Department of Chemistry and Biochemistry
  • Utah State University
  • University of Texas at Austin
  • Jiangsu TAFEL New Energy Technology Inc.

Research output: Contribution to journal › Article › peer-review

Abstract

In this work, nitrogen-doped LaNiO3 perovskite was prepared and studied, for the first time, as a bifunctional electrocatalyst for oxygen cathode in a rechargeable lithium-oxygen battery. N doping was found to significantly increase the Ni3+ contents and oxygen vacancies on the bulk surface of the perovskite, which helped to promote the oxygen reduction reaction and oxygen evolution reaction of the cathode and, therefore, enabled reversible Li2O2 formation and decomposition on the cathode surface. As a result, the oxygen cathodes loaded with N-doped LaNiO3 catalyst showed an improved electrochemical performance in terms of discharge capacity and cycling stability to promise practical Li-O2 batteries.

Original languageEnglish
Pages (from-to)5543-5550
Number of pages8
JournalACS Applied Materials and Interfaces
Volume10
Issue number6
DOIs
Publication statusPublished - 14 Feb 2018
Externally publishedYes

Keywords

  • nitrogen-doped LaNiO
  • oxygen evolution reaction
  • oxygen reduction reaction
  • oxygen vacancies
  • rechargeable lithium-oxygen batteries

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