Real-time plasmonic monitoring of electrocatalysis on single nanorods

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.

关键词： Local chemical reaction Localized surface plasmon resonance Spectroelectrochemistry Single nanoparticle

作者: Jun-Gang Wang John S.Fossey Meng Li Da-Wei Li Wei Ma Yi-Lun Ying Ruo-Can Qian Chan Cao Yi-Tao Long

作者单位: Key Laboratory for Advanced Materials,East China University of Science and Technology,130 Meilong Ro School of Chemistry,University of Birmingham,Edgbaston,Birmingham,West Midlands B15 2TT,UK Key Laboratory for Advanced Materials,East China University of Science and Technology,130 Meilong Ro

会议类型: 国际会议

会议名称: 2016全国生命分析化学学术大会

会议地点: 南京

会议语种:英文

页码: 257-264

在线出版日期: 2016-12-23（万方平台首次上网日期，不代表论文的发表时间）