Efficiency of 3D-Ordered Macroporous La 0.6 Sr 0.4 Co 0.2 Fe 0.8 O 3 as an Electrocatalyst for Aprotic Li-O 2 Batteries

Junfang Cheng, Yuexing Jiang, Lu Zou, Ming Zhang, Guozhu Zhang, Ziling Wang, Yizhen Huang, Bo Chi*, Jian Pu, Li Jian

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

Li-O 2 batteries (LOBs) with an extremely high theoretical energy density have been reported to be the most promising candidates for future electric storage systems. Porous catalysts can be beneficial for LOBs. Herein, 3D-ordered macroporous La 0.6 Sr 0.4 Co 0.2 Fe 0.8 O 3 perovskite oxides (3D-LSCF) are applied as cathode catalysts in LOBs. With a high Brunauer-Emmett-Teller surface area (21.8 m 2 g −1 ) and unique honeycomb-like macroporous structure, the 3D-LSCF catalysts possess a much higher efficiency than La 0.6 Sr 0.4 Co 0.2 Fe 0.8 O 3 (LSCF) nanoparticles. The unique 3D-ordered macropores play a significant role in the product deposition as well as oxygen and electrolyte transmission, which are crucial for the discharge-charge processes of LOBs.

Original languageEnglish
Pages (from-to)206-209
Number of pages4
JournalChemistryOpen
Volume8
Issue number2
DOIs
Publication statusPublished - 2019 Feb
Externally publishedYes

Keywords

  • Li-O batteries
  • catalytic efficiency
  • nanostructures
  • overpotential
  • perovskite phases

ASJC Scopus subject areas

  • Chemistry(all)

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