Illuminating nanostructured gold electrode: surface plasmons or electron ejection?

Autor:	Huang D; State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China. dpzhan@xmu.edu.cn., He Q, Shan JJ, Sartin M, Pang R, Yang FZ, Zhou Y, Ren B, Tian ZQ, Zhan D
Jazyk:	angličtina
Zdroj:	Faraday discussions [Faraday Discuss] 2018 Oct 01; Vol. 210 (0), pp. 281-287.
DOI:	10.1039/c8fd00012c
Abstrakt:	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.
Databáze:	MEDLINE
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