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Decoration of electro-reduced graphene oxide with uniform gold nanoparticles based on in situ diazonium chemistry and their application in methanol oxidation
| Content Provider | Semantic Scholar |
|---|---|
| Author | Ma, Weiguang Lv, Xiangyu Han, Dongxue Li, Fenghua Dong, Xiandui |
| Copyright Year | 2013 |
| Abstract | Decorating graphene with high destiny and uniform size of noble metal nanoparticles is very important for a number of applications including sensing and electrocatalysis. Herein, a novel approach based on in situ diazonium chemistry was reported to design gold nanoparticles/graphene hybrid materials (Au-NPs/G). Graphene oxide was firstly electro-reduced on the glassy carbon electrode, and then this modified electrode was grafted by aminophenyl diazonium cations, generated in situ from p-phenylenediamine. Subsequently, gold nanoparticles (Au-NPs) were deposited on the p-phenylenediamine grafted electrode by a potentiostatic method. X-ray photoelectron spectroscopy, scanning electron microscopy, cyclic voltammetry and electrochemical impedance spectroscopy were used to characterize the Au-NPs/G. The results demonstrated that the Au-NPs with high destiny and uniform size were dispersed on the electro-reduced graphene oxide. In addition, the obtained Au-NPs/G was utilized in electrocatalysis toward the oxidation of methanol showing excellent catalytic activity. (C) 2012 Elsevier B.V. All rights reserved. |
| Starting Page | 111 |
| Ending Page | 116 |
| Page Count | 6 |
| File Format | PDF HTM / HTML |
| DOI | 10.1016/j.jelechem.2012.12.007 |
| Volume Number | 690 |
| Alternate Webpage(s) | http://lniu.ciac.jl.cn/publications/2013/p-2013-jec-v690-111.pdf |
| Alternate Webpage(s) | https://doi.org/10.1016/j.jelechem.2012.12.007 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
