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Activating plasmonic catalysis through light-mediated steady-state spin modulation.

Xinge Hu1, Jinjie Liu2, Zhijie Zhu1

  • 1Institute of Functional Nano & Soft Materials (FUNSOM) and Jiangsu Key Laboratory of Advanced Negative Carbon Technologies, Soochow University, Suzhou, China.

Nature Communications
|February 17, 2026
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Summary
This summary is machine-generated.

This study demonstrates light-driven control over catalyst electronic spin states, overcoming photobleaching for enhanced photocatalysis. This innovation enables on-demand catalyst customization for diverse chemical reactions, including nitrate reduction.

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Area of Science:

  • Materials Science
  • Photochemistry
  • Catalysis

Background:

  • Light-mediated electronic spin modulation offers potential for photochemistry but faces challenges like photobleaching and temporal mismatch with reaction dynamics.
  • Transient spin transitions in catalysts often exhibit photobleaching, limiting their practical application in chemical reactions.

Purpose of the Study:

  • To demonstrate light-driven, steady-state, and on-demand catalyst spin modulation for activating plasmonic catalysis.
  • To overcome photobleaching limitations in spin transitions for improved catalyst performance.

Main Methods:

  • Utilized rapidly oscillating plasmonic electromagnetic near-field to spin-polarize a low-spin Cobalt Ferrite (CoFe2O4) catalyst.
  • Achieved stable high-spin states with spin lifetimes exceeding 60 μs, overcoming photobleaching.
  • Applied the high-spin plasmonic catalyst to light-driven nitrate reduction catalysis.

Main Results:

  • Successfully produced stable high-spin states with extended spin lifetimes (>60 μs), mitigating photobleaching.
  • The high-spin plasmonic catalyst balanced spin polarization and carrier dynamics effectively.
  • Achieved significant photo-enhancement in ammonia production rate and selectivity for nitrate reduction under sunlight.

Conclusions:

  • Developed a generalized light-mediated strategy for on-demand and steady-state electronic spin engineering.
  • Demonstrated the potential of spin-polarized catalysts for activating reactants and modulating reaction pathways.
  • Opened new avenues for catalyst customization with profound implications across various scientific disciplines.