Enhanced solid-state electrogenerated chemiluminescence of Au/CdS nanocomposite and its sensing to H2O2

被引：26

作者：

Shi, Chuanguo ^{[1
,2
]}

Shan, Yun ^{[1
]}

Xu, Jingjuan ^{[1
]}

Chen, Hongyuan ^{[1
]}

机构：

[1] Nanjing Univ, Sch Chem & Chem Engn, Key Lab Analyt Chem Life Sci MOE, Nanjing 210093, Peoples R China

[2] Nantong Univ, Sch Chem & Chem Engn, Nantong 226019, Peoples R China

来源：

ELECTROCHIMICA ACTA | 2010年 / 55卷 / 27期

关键词：

CdS; Au; Nanocomposite; Electrogenerated chemiluminescence; H2O2; CDTE QUANTUM DOTS; SPHERICAL ASSEMBLIES; AQUEOUS-SOLUTION; ENERGY-TRANSFER; US NANOTUBES; ELECTROCHEMILUMINESCENCE; NANOCRYSTALS; ELECTROCHEMISTRY; FILMS;

D O I：

10.1016/j.electacta.2010.03.029

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Au nanoparticles (AuNPs) are good quenchers once they closely contact with luminophore Here we reported a simple approach to obtain enhanced electrogenerated chemiluminescence (ECL) behavior based on Au/CdS nanocomposite films by adjusting the amount of AuNPs in the nanocomposite The maximum enhancement factor of about 4 was obtained at an indium tin oxide (ITO) electrode in the presence of co-reactant H2O2 The mechanism of this enhancement was discussed in detail The strong ECL emission from Au/CdS nanocomposites film was exploited to determine H2O2 The resulting ECL biosensors showed a linear response to the concentration of H2O2 ranging from 1 0 x 10(-8) to 6 6 x 10(-4) mol L-1 with a detection limit of 5 nmol L-1 (S/N = 3) and good stability and reproducibility (C) 2010 Elsevier Ltd All rights reserved

引用

页码：8268 / 8272

页数：5

共 27 条

[1] Electrochemistry and electrogenerated chemiluminescence of semiconductor nanocrystals in solutions and in films [J].