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Showing 1–4 of 4 results
Advanced filters: Author: I. Chorkendorff Clear advanced filters

  • The reason for the high water-oxidation activity of Ni(Fe)OxHy catalysts in alkaline electrolyte is not yet well understood. Now, Chorkendorff and co-workers report that oxygen evolution is limited to the near-surface region by measuring the activity trends of mass-selected NiFe nanoparticles.

    • C. Roy
    • B. Sebok
    • I. Chorkendorff
    Research
    Nature Catalysis
    Volume: 1, P: 820-829

  • Improvements in the activity and stability of catalysts for oxygen reduction reactions are needed to make low-temperature, polymer electrolyte membrane fuel-cells viable for mobile applications. Pt3Sc and Pt3Y are shown experimentally to have greater catalytic activity than pure Pt after being identified through computational investigation of Pt- and Pd-based alloys.

    • J. Greeley
    • I. E. L. Stephens
    • J. K. Nørskov
    Research
    Nature Chemistry
    Volume: 1, P: 552-556

  • Many catalytic reactions exhibit oscillatory behaviour but these oscillations are not well understood for catalysts consisting of supported nanoparticles. The study of oscillatory CO oxidation catalysed by Pt nanoparticles now reveals that periodic changes in the CO oxidation are synchronous with a periodic refacetting of the Pt nanoparticles.

    • S. B. Vendelbo
    • C. F. Elkjær
    • S. Helveg
    Research
    Nature Materials
    Volume: 13, P: 884-890

  • This Primer highlights the range of new strategies for sustainable N2 activation and the step by step protocol necessary for evaluating genuine activity. The required metrics and how to interpret data alongside the best practices to improve reproducibility and enable the development of practical technologies are discussed.

    • Haldrian Iriawan
    • Suzanne Z. Andersen
    • Yang Shao-Horn
    Reviews
    Nature Reviews Methods Primers
    Volume: 1, P: 1-26