La0.75Sr0.25MnO3-based perovskite oxides as efficient and durable bifunctional oxygen electrocatalysts in rechargeable Zn-air batteries [La0.75Sr0.25MnO3基钙钛矿氧化物作为可充电锌空气电池中高效耐用的双功能氧电催化剂]


Research output: Journal PublicationsJournal Article (refereed)peer-review

1 Citation (Scopus)


Efficient and durable bifunctional oxygen electrocatalysts are critical for advanced rechargeable zinc-air (Zn-air) batteries. However, the obstacle to the development of bifunctional electrocatalysts for the oxygen reduction reaction (ORR)/oxygen evolution reaction (OER) lies in the different requirements of the ORR and OER for catalytic materials. Herein, La 0.75Sr 0.25Mn 0.5X 0.5O 3 (X = Co, Ni, and Fe) perovskite nanoparticles were created by rationally screening targeted ORR/OER components and precisely controlling their electronic structures to achieve bifunctional oxygen electrocatalysis, in which La 0.75Sr 0.25Mn 0.5Fe 0.5O 3 (LSFMO) displayed superior ORR performance (E onset of 0.932 V and n of 3.59) and significantly enhanced electrocatalytic activity in the OER process (an E j=10 of 1.658 V and overpotential of 428 mV), corresponding to excellent bifunctional properties (ΔE = 0.94 V). Furthermore, density functional theory (DFT) calculations demonstrated that Mn and Fe dual sites generated by partial substitution had a significant synergistic effect on the electrocatalytic process. The rechargeable Zn-air batteries delivered an unprecedented small charge-discharge voltage polarization (0.76 V), high reversibility and stability over many charge-discharge cycles (60 h). These excellent results demonstrate that Mn-based perovskites with Fe doping are undoubtedly promising bifunctional electrocatalysts for rechargeable Zn-air batteries. [Figure not available: see fulltext.].

Original languageEnglish
Pages (from-to)1002-1012
Number of pages11
JournalScience China Materials
Issue number3
Publication statusPublished - Mar 2023
Externally publishedYes

Bibliographical note

Funding Information:
This work was financially supported by the Earth Engineering Center and Center for Advanced Materials for Energy and Environment at Columbia University, the School of Chemical Engineering, Northwest University, the National Natural Science Foundation of China (11872302), and the Natural Science Project of Shaanxi Provincial Department of Education (20JK0927).

Publisher Copyright:
© 2022, Science China Press and Springer-Verlag GmbH Germany, part of Springer Nature.


  • B-site substitution
  • density functional theory
  • oxygen evolution reaction
  • oxygen reduction reaction
  • rechargeable Zn-air battery


Dive into the research topics of 'La0.75Sr0.25MnO3-based perovskite oxides as efficient and durable bifunctional oxygen electrocatalysts in rechargeable Zn-air batteries [La0.75Sr0.25MnO3基钙钛矿氧化物作为可充电锌空气电池中高效耐用的双功能氧电催化剂]'. Together they form a unique fingerprint.

Cite this