Electrochemically Reduced Graphene Oxide-Nafion/Au Nanoparticle Modified Electrode for Hydrogen Peroxide Sensing

Nanomaterials and Nanotechnology

Yajie Lv¹  Cheng-An Tao¹  Jianfang Wang¹  Fang Wang¹  Hui Zhu¹  Xiaorong Zou¹ 

关键词: Graphene;    Non-enzymatic Sensor;    Electrochemical;    Au Nanoparticles;    Hydrogen Peroxide;   

DOI  :  10.5772/63519

来源: InTech

【 摘 要 】

In this paper, a non-enzymatic hydrogen peroxide (H2O2) sensor, based on Au nanoparticles (AuNPs) electrodeposited on an electrochemically reduced graphene oxide(ERGO)-Nafion modified glass carbon electrode (GCE), was reported. The graphene oxide-(GO-)Nafion nanocomposites were first assembled on the GCE surface to produce a GO-Nafion electrode. GO was then electrochemically reduced to produce an ERGO-Nafion modified GCE (to be subsequently denoted as GCE/ERGO-Nafion). Afterwards, AuNPs were electrodeposited on the modified GCE to form a GCE/ERGO-Nafion/AuNPs electrode. The ERGO-Nafion nanocomposites and the electrodeposited AuNPs were characterized by infrared spectroscopy and scanning electron microscopy (SEM). The results showed that the GO was reduced successfully and the AuNPs were uniformly dispersed on the GCE/ERGO-Nafion electrode with a size of about 48nm. The cyclic voltammograms and the amperometric method were used to evaluate the electrocatalytic properties of the GCE/ERGO-Nafion/AuNPs electr...

【 授权许可】

Unknown