Nano Research

, Volume 11, Issue 9, pp 4796–4805 | Cite as

Molten-salt synthesis of porous La0.6Sr0.4Co0.2Fe0.8O2.9 perovskite as an efficient electrocatalyst for oxygen evolution

  • Sanzhao Song
  • Jing Zhou
  • Shuo Zhang
  • Linjuan Zhang
  • Jiong Li
  • Yu Wang
  • Ling Han
  • Youwen Long
  • Zhiwei Hu
  • Jian-Qiang Wang
Research Article


The development of an efficient and low-cost electrocatalyst for the oxygen evolution reaction (OER) via an eco-efficient route is a desirable, although challenging, outcome for overall water splitting. Herein, an iron-rich La0.6Sr0.4Co0.2Fe0.8O2.9 (LSCF28) perovskite with an open porous topographic structure was developed as an electrocatalyst by a straightforward molten-salt synthesis approach. It was found that porosity correlates with both the iron content and the molten-salt approach. Benefiting from the large surface area, high activity of the porous internal surface, and the optimal electronic configuration of redox sites, this inexpensive material exhibits high performance with a large mass activity of 40.8 A·g–1 at a low overpotential of 0.345 V in 0.1 M KOH, surpassing the state-of-the-art precious metal IrO2 catalyst and other well-known perovskites, such as Ba0.5Sr0.5Co0.8Fe0.2O3 and SrCoO2.7. Our work illustrates that the molten-salt method is an effective route to generate porous structures in perovskite oxides, which is important for energy conversion and storage devices.


iron-rich perovskite oxygen evolution reaction energy storage and conversion molten salt 


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We thank Hong-Ji Lin and Chien-Te Chen’s help for the Soft X-ray absorption spectroscopy experiments in National Synchrotron Radiation Research Center (NSRRC). This work was partly supported by the National Natural Science Foundation of China (Nos. 11305250 and 11575280), the Joint Funds of the National Natural Science Foundation of China (No. U1232117), the Key Project of Science and Technology of Shanghai (No. 15DZ1200100), and the Youth Innovation Promotion Association of the Chinese Academy of Sciences (Nos. 2014237 and 2015212).

Supplementary material

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Molten-salt synthesis of porous La0.6Sr0.4Co0.2Fe0.8O2.9 perovskite as an efficient electrocatalyst for oxygen evolution


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Copyright information

© Tsinghua University Press and Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  • Sanzhao Song
    • 1
    • 2
  • Jing Zhou
    • 1
  • Shuo Zhang
    • 1
  • Linjuan Zhang
    • 1
  • Jiong Li
    • 1
  • Yu Wang
    • 1
  • Ling Han
    • 1
  • Youwen Long
    • 3
    • 4
  • Zhiwei Hu
    • 5
  • Jian-Qiang Wang
    • 1
    • 2
  1. 1.Shanghai Institute of Applied PhysicsChinese Academy of SciencesShanghaiChina
  2. 2.University of Chinese Academy of SciencesBeijingChina
  3. 3.Beijing National Laboratory for Condensed Matter Physics, Institute of PhysicsChinese Academy of SciencesBeijingChina
  4. 4.Collaborative Innovation Center of Quantum MatterBeijingChina
  5. 5.Max Planck Institute for Chemical Physics of SolidsDresdenGermany

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