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Chiral electrocatalysts eclipse water splitting metrics through spin control

Author

Listed:
  • Aravind Vadakkayil

    (University of Pittsburgh)

  • Caleb Clever

    (University of Pittsburgh)

  • Karli N. Kunzler

    (University of Pittsburgh)

  • Susheng Tan

    (University of Pittsburgh
    University of Pittsburgh)

  • Brian P. Bloom

    (University of Pittsburgh)

  • David H. Waldeck

    (University of Pittsburgh
    University of Pittsburgh)

Abstract

Continual progress in technologies that rely on water splitting are often hampered by the slow kinetics associated with the oxygen evolution reaction (OER). Here, we show that the efficiency of top-performing catalysts can be improved, beyond typical thermodynamic considerations, through control over reaction intermediate spin alignment during electrolysis. Spin alignment is achieved using the chiral induced spin selectivity (CISS) effect and the improvement in OER manifests as an increase in Faradaic efficiency, decrease in reaction overpotential, and change in the rate determining step for chiral nanocatalysts over compositionally analogous achiral nanocatalysts. These studies illustrate that a defined spatial orientation of the nanocatalysts is not necessary to exhibit spin selectivity and therefore represent a viable platform for employing the transformative role of chirality in other reaction pathways and processes.

Suggested Citation

  • Aravind Vadakkayil & Caleb Clever & Karli N. Kunzler & Susheng Tan & Brian P. Bloom & David H. Waldeck, 2023. "Chiral electrocatalysts eclipse water splitting metrics through spin control," Nature Communications, Nature, vol. 14(1), pages 1-7, December.
    • Handle: RePEc:nat:natcom:v:14:y:2023:i:1:d:10.1038_s41467-023-36703-w
    DOI: 10.1038/s41467-023-36703-w
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    References listed on IDEAS

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    1. Felipe A. Garcés-Pineda & Marta Blasco-Ahicart & David Nieto-Castro & Núria López & José Ramón Galán-Mascarós, 2019. "Direct magnetic enhancement of electrocatalytic water oxidation in alkaline media," Nature Energy, Nature, vol. 4(6), pages 519-525, June.
    2. Yunchang Liang & Karla Banjac & Kévin Martin & Nicolas Zigon & Seunghwa Lee & Nicolas Vanthuyne & Felipe Andrés Garcés-Pineda & José R. Galán-Mascarós & Xile Hu & Narcis Avarvari & Magalí Lingenfelder, 2022. "Enhancement of electrocatalytic oxygen evolution by chiral molecular functionalization of hybrid 2D electrodes," Nature Communications, Nature, vol. 13(1), pages 1-9, December.
    3. Tianze Wu & Xiao Ren & Yuanmiao Sun & Shengnan Sun & Guoyu Xian & Günther G. Scherer & Adrian C. Fisher & Daniel Mandler & Joel W. Ager & Alexis Grimaud & Junling Wang & Chengmin Shen & Haitao Yang & , 2021. "Spin pinning effect to reconstructed oxyhydroxide layer on ferromagnetic oxides for enhanced water oxidation," Nature Communications, Nature, vol. 12(1), pages 1-11, December.
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