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  11. Reversible Surface Reconstruction Of Metal-organic Frameworks For Durable Oxygen Evolution Reaction

Reversible surface reconstruction of metal-organic frameworks for durable oxygen evolution reaction

Shulin Li1,2,3, Zhaoxin Zhou2, Jiahui Li1

  • 1Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, Northeast Normal University Changchun 130024 China jingxf100@nenu.edu.cn zhugs@nenu.edu.cn.

Chemical Science
|June 13, 2025

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View abstract on PubMed

Summary
This summary is machine-generated.

Metal-organic frameworks (MOFs) show promise as electrocatalysts for the oxygen evolution reaction (OER). This study demonstrates a Ni-BPM MOF

Area of Science:

  • Materials Science
  • Electrochemistry
  • Catalysis

Background:

  • Metal-organic frameworks (MOFs) are explored as electrocatalysts for the oxygen evolution reaction (OER).
  • Controllable and reversible reconstruction of MOFs to generate active catalytic sites for durable OER remains understudied.

Purpose of the Study:

  • To investigate the reversible structural transformation of MOFs during OER.
  • To develop durable MOF electrocatalysts with enhanced OER performance.

Main Methods:

  • Fabrication of orientated Ni-BPM MOF electrodes using a sacrificial lattice-matched-template method.
  • In situ Raman and X-ray absorption spectroscopy.
  • Density functional theory (DFT) calculations.

Main Results:

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  • Ni-BPM MOF undergoes surface reconstruction to active γ-NiOOH during OER.
  • Reconstructed Ni-BPM exhibits reversible repair during reduction, ensuring durable OER.
  • Achieved continuous OER operation at 100 mA cm⁻² for 130 h, followed by 70 h at 500 mA cm⁻².
  • Confirmed electronic configuration transformation of Ni sites at the Ni-BPM/γ-NiOOH interface.

Conclusions:

  • Demonstrated the reversible structural transformation of MOFs during OER.
  • Established a theoretical foundation for developing durable MOF electrocatalysts.
  • Ni-BPM MOFs offer superior durability and activity for OER compared to many single Ni-based catalysts.