PlumX Metrics
Embed PlumX Metrics

Kirkendall oxidation tailors lattice strain in transition metal oxides for efficient oxygen electrocatalysis

Matter, ISSN: 2590-2385, Vol: 7, Issue: 3, Page: 1245-1258
2024
  • 13
    Citations
  • 0
    Usage
  • 2
    Captures
  • 1
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    13
    • Citation Indexes
      13
  • Captures
    2
  • Mentions
    1
    • News Mentions
      1
      • News
        1

Most Recent News

Recent Findings from Donghua University Provides New Insights into Chemicals and Chemistry (Kirkendall Oxidation Tailors Lattice Strain In Transition Metal Oxides for Efficient Oxygen Electrocatalysis)

2024 MAY 17 (NewsRx) -- By a News Reporter-Staff News Editor at Chemicals & Chemistry Daily Daily -- Investigators publish new report on Chemicals and

Article Description

Advanced electrocatalysts for oxygen reduction/evolution reaction (ORR/OER) are pivotal to clean energy conversions. Lattice strain has been found to effectively enhance catalytic performance in transition metal oxides (TMOs), but precise control is challenging with conventional bulk processing methods. Herein, we report the regulation of lattice strain (ranging from 0% to 2.2%) in TMOs through Kirkendall diffusion, enabling us to chart the strain-dependent electrocatalysis. The Co 3 O 4 400 plane with an optimal 1.8% tensile strain delivers an ORR half-wave potential of 0.86 V and a small OER overpotential of 0.30 V at 10 mA cm −2 in alkaline environments, located among the top TMO-based electrocatalysts. X-ray absorption spectra and density functional theory calculations collectively suggest that tensile strain simultaneously optimizes the adsorption of ∗ OOH and the desorption of ∗ OH on adjacent Co atoms. This work provides new insights into regulating strain in TMOs for advanced oxygen electrocatalysis, which is extendable to other catalytic applications.

Bibliographic Details

Provide Feedback

Have ideas for a new metric? Would you like to see something else here?Let us know