One-pot synthesis of Ag nanoparticles/reduced graphene oxide nanocomposites and their application for nonenzymatic H2O2 detection

被引：76

作者：

Li, Qingzhen ^{[1
]}

Qin, Xiaoyun ^{[1
]}

Luo, Yonglan ^{[1
]}

Lu, Wenbo ^{[1
]}

Chang, Guohui ^{[1
]}

Asiri, Abdullah M. ^{[2
,3
]}

Al-Youbi, Abdulrahman O. ^{[2
,3
]}

Sun, Xuping ^{[1
,2
,3
]}

机构：

[1] China W Normal Univ, Sch Chem & Chem Ind, Chem Synth & Pollut Control Key Lab Sichuan Prov, Nanchong 637002, Sichuan, Peoples R China

[2] King Abdulaziz Univ, Fac Sci, Dept Chem, Jeddah 21589, Saudi Arabia

[3] King Abdulaziz Univ, Ctr Excellence Adv Mat Res, Jeddah 21589, Saudi Arabia

来源：

ELECTROCHIMICA ACTA | 2012年 / 83卷

关键词：

Ag nanoparticles; Reduced graphene oxide; One-pot; H2O2; detection; CARBON; NANOSHEETS; OXIDATION; AGENT;

D O I：

10.1016/j.electacta.2012.08.007

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

In this paper, we report on one-pot synthesis of Ag nanoparticles/reduced graphene oxide (AgNPs/rGO) nanocomposites by heating mixed solution of graphene oxide (GO) and AgNO3 with the use of diethylenetriamine as a reducing agent at 80 degrees C for 30 min. Several analytical techniques including UV-vis spectroscopy, Raman spectroscopy and transmission electron microscopy (TEM) have been employed to characterize the resulting nanocomposites. It was found that such nanocomposites exhibit good catalytic activity toward the reduction of H2O2. This nonenzymatic H2O2 sensor shows a fast amperometric response time of less than 2s. The linear detection range is estimated to be from 0.1 to 100 mM (r = 0.999), and the detection limit is estimated to be 3.6 mu M at a signal-to-noise ratio of 3. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：283 / 287

页数：5

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