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Momentum Relaxed, Plasmon-Resonant Vibrational Sum Frequency Generation of Electrochemical Interfaces: Direct Observation of Carbon Dioxide Electroreduction on Gold

preprint
submitted on 12.05.2020, 17:47 and posted on 13.05.2020, 12:42 by Spencer Wallentine, Savini Bandaranayake, Somnath Biswas, L. Robert Baker
We present a vibrational sum frequency generation method to probe the Au/electrolyte interface with a detection limit of < 1% of a monolayer, and with currents exceeding 1 mA/cm2 during CO2 reduction. We couple light to the interface using momentum relaxed surface plasmon resonance. Using this technique we make in-situ measurements of catalytic CO with good signal-to-noise and at high current density.

Funding

NSF 1665280

History

Email Address of Submitting Author

wallentine.1@osu.edu

Institution

Ohio State University

Country

USA

ORCID For Submitting Author

0000-0001-5539-018X

Declaration of Conflict of Interest

None

Version Notes

This is the first version of the manuscript.

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