Volume 210, 2018

Illuminating nanostructured gold electrode: surface plasmons or electron ejection?

Abstract

Recently, the photoelectric effect in metals in electrolyte environments has aroused the interest of researchers. However, direct evidence for surface plasmons-enhanced electrochemical reactions involving classic outer-sphere reactions of reversible redox couples is seldom reported. We used a surface plasmons-active gold-mushroom-array as a working electrode and observed enhanced faradaic current from ferrocenemethanol following illumination with a xenon lamp. The photoelectric current behaved differently in the presence and absence of oxygen in the solution. The preliminary results are discussed with consideration of the possible mechanisms of electron transfer, although they are very complex, due to the lack of direct evidence. Some consideration was also taken of the research on photoelectrochemical reactions on metallic electrodes.

Graphical abstract: Illuminating nanostructured gold electrode: surface plasmons or electron ejection?

Associated articles

Article information

Article type
Paper
Submitted
03 Feb 2018
Accepted
16 Mar 2018
First published
27 Mar 2018

Faraday Discuss., 2018,210, 281-287

Illuminating nanostructured gold electrode: surface plasmons or electron ejection?

D. Huang, Q. He, J. Shan, M. Sartin, R. Pang, F. Yang, Y. Zhou, B. Ren, Z. Tian and D. Zhan, Faraday Discuss., 2018, 210, 281 DOI: 10.1039/C8FD00012C

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