Boosting the Plasmon-Mediated Electrochemical Oxidation of p-Aminothiophenol with p-Hydroxythiophenol as Molecular Cocatalyst

被引：2

作者：

Rani, Karuppasamy Kohila ^{[1
]}

Yang, Qiong ^{[1
,2
]}

Xiao, Yuan-Hui ^{[3
]}

Devasenathipathy, Rajkumar ^{[1
,2
]}

Lu, Zhihao ^{[1
,2
]}

Chen, Xinya ^{[1
,2
]}

Jiang, Lu ^{[1
,2
]}

Li, Zemin ^{[1
,2
]}

Liu, Qinghua ^{[1
,2
]}

Chen, Haonan ^{[1
,2
]}

Yu, Liuyingzi ^{[1
,2
]}

Li, Zhuoyao ^{[1
,2
]}

Khayour, Soukaina ^{[1
,2
]}

Wang, Junjie ^{[1
,2
]}

Wang, Kaili ^{[1
,2
]}

Li, Gongqiang ^{[1
,2
]}

Wu, De-Yin ^{[3
]}

Lu, Gang ^{[1
,2
]}

机构：

[1] Nanjing Tech Univ, Key Lab Flexible Elect, Sch Flexible Elect Future Technol, Nanjing 211816, Peoples R China

[2] Nanjing Tech Univ, Inst Adv Mat, Nanjing 211816, Peoples R China

[3] Xiamen Univ, Coll Chem & Chem Engn, Xiamen 361005, Peoples R China

来源：

ACS APPLIED MATERIALS & INTERFACES | 2023年 / 15卷 / 49期

基金：

中国国家自然科学基金;

关键词：

surface plasmon; p-aminothiophenol; molecular catalyst; in situ Raman; electrochemistry; WATER OXIDATION; TRANSFORMATION; 4-AMINOTHIOPHENOL; CARRIERS; CITRATE; ENERGY; SOLAR; AG;

D O I：

10.1021/acsami.3c12778

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Plasmon-mediated electrochemistry is an emerging area of interest in which the electrochemical reactions are enhanced by employing metal nanostructures possessing localized surface plasmon resonance (LSPR). However, the reaction efficacy is still far below its theoretical limit due to the ultrafast relaxation of LSPR-generated hot carriers. Herein, we introduce p-hydroxythiophenol (PHTP) as a molecular cocatalyst to significantly improve the reaction efficacy in plasmon-mediated electrochemical oxidation of p-aminothiophenol (PATP) on gold nanoparticles. Using electrochemical techniques, in situ Raman spectroscopy, and theoretical calculations, we elucidate that the presence of PHTP improves the hot hole-mediated electrochemical oxidation of PATP by 2-fold through the trapping of plasmon-mediated hot electrons. In addition, the selectivity of PATP oxidation could also be modulated by the introduction of PHTP cocatalyst. This tactic of employing molecular cocatalyst can be drawn out to endorse various plasmonic electrochemical reactions because of its simple protocol, high efficiency, and high selectivity.

引用

页码：57818 / 57827

页数：10

共 34 条

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