Illuminating nanostructured gold electrode: surface plasmons or electron ejection?,Faraday Discussions

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Illuminating nanostructured gold electrode: surface plasmons or electron ejection?
Faraday Discussions ( IF 3.3 ) Pub Date : 2018-03-27 , DOI: 10.1039/c8fd00012c
Di Huang _{1,

2,

3,

4,

5} , Quanfeng He _{1,

2,

3,

4,

5} , Jie-Jie Shan _{1,

2,

3,

4,

5} , Matthew Sartin _{6,

7,

8,

9,

10} , Ran Pang _{1,

2,

3,

4,

5} , Fang-Zu Yang _{1,

2,

3,

4,

5} , Yongliang Zhou _{1,

2,

3,

4,

5} , Bin Ren _{1,

2,

3,

4,

5} , Zhong-Qun Tian _{1,

2,

3,

4,

5} , Dongping Zhan _{1,

2,

3,

4,

5}

Affiliation

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.

中文翻译：

照亮纳米结构金电极：表面等离激元或电子喷射？

最近，电解质环境中金属中的光电效应引起了研究人员的兴趣。然而，很少报道涉及可逆氧化还原对的经典外球反应的表面等离激元增强的电化学反应的直接证据。我们使用表面等离激元活性金蘑菇阵列作为工作电极，并观察到氙灯照明后二茂铁甲醇产生的法拉第电流增加。在溶液中存在和不存在氧气的情况下，光电电流的行为都不同。由于缺乏直接的证据，尽管很复杂，但考虑了电子转移的可能机理，对初步结果进行了讨论。还考虑了在金属电极上进行光电化学反应的研究。

更新日期：2018-10-10

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