Real-time plasmonic monitoring of electrocatalysis on single nanorods

被引：10
作者：
Wang, Jun-Gang [1 ,2 ]
Fossey, John S. [3 ]
Li, Meng [1 ,2 ,4 ]
Li, Da-Wei [1 ,2 ]
Ma, Wei [1 ,2 ]
Ying, Yi-Lun [1 ,2 ]
Qian, Ruo-Can [1 ,2 ]
Cao, Chan [1 ,2 ]
Long, Yi-Tao [1 ,2 ]
机构：
[1] East China Univ Sci & Technol, Key Lab Adv Mat, 130 Meilong Rd, Shanghai 200237, Peoples R China
[2] East China Univ Sci & Technol, Sch Chem & Mol Engn, 130 Meilong Rd, Shanghai 200237, Peoples R China
[3] Univ Birmingham, Sch Chem, Birmingham B15 2TT, W Midlands, England
[4] East China Univ Sci & Technol, State Environm Protect Key Lab Risk Assessment &, Shanghai 200237, Peoples R China
来源：
JOURNAL OF ELECTROANALYTICAL CHEMISTRY | 2016年 / 781卷
关键词：
Local chemical reaction; Localized surface plasmon resonance; Spectroelectrochemistry; Single nanoparticle; ENHANCED RAMAN-SCATTERING; LOCALIZED SURFACE-PLASMON; GOLD NANORODS; METAL NANOPARTICLES; CATALYTIC-REACTIONS; CHEMICAL-REACTIONS; ELECTRON-TRANSFER; LIVE CELLS; SPECTROSCOPY; RESONANCE;
D O I：
10.1016/j.jelechem.2016.10.008
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
Changes in the optical properties of single gold nanorods during electrocatalytic oxidation of glucose in alkaline media are monitored in real-time by single-nanoparticle dark-field spectroelectrochemistry. The spectral scattering characteristics under dynamic potential scan conditions are closely related to the electrochemical processes, and the electrochemical catalytic mechanism of the process is discussed. Moreover, changes in free-electron density are evaluated using a Drude dielectric function with charge density-modification. The proposed sensing technique based on plasmonic analysis shows significant promise for the design and research of electrochemical catalytic systems at the single-nanoparticle level. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码：257 / 264
页数：8
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