Investigation on the electrochemical interfacial properties of 2-aminothiophenol functionalized graphene oxide modified electrode

2018 ◽  
Author(s):  
Susan Immanuel ◽  
Aparna T. K. ◽  
R. Sivasubramanian
Keyword(s):  
Graphene Oxide ◽  
Modified Electrode ◽  
Interfacial Properties ◽  
Functionalized Graphene ◽  
Functionalized Graphene Oxide

(4-Ferrocenylethyne) Phenylamine Functionalized Graphene Oxide Modified Electrode for Sensitive Nitrite Sensing

2014 ◽  
Vol 116 ◽  
pp. 504-511 ◽  
Author(s):  
Meiling Liu ◽  
Linping Wang ◽  
Yue Meng ◽  
Qiong Chen ◽  
Haitao Li ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Modified Electrode ◽  
Functionalized Graphene ◽  
Functionalized Graphene Oxide

Graphene oxide–ZnO nanocomposite modified electrode for the detection of phenol

2018 ◽  
Vol 10 (3) ◽  
pp. 347-358 ◽  
Author(s):  
Tanvir Arfin ◽  
Stephy N. Rangari
Keyword(s):  
Graphene Oxide ◽  
Glassy Carbon Electrode ◽  
Modified Electrode ◽  
Glassy Carbon ◽  
Carbon Electrode ◽  
Functionalized Graphene ◽  
Modified Glassy Carbon Electrode ◽  
Functionalized Graphene Oxide

In the present study, a ZnO functionalized graphene oxide (GO) modified glassy carbon electrode (GO–ZnO/GCE) was used for the electrochemical sensory detection of phenol.

scholarly journals Effects of Non-Covalent Functionalized Graphene Oxide with Hyperbranched Polyesters on Mechanical Properties and Mechanism of Epoxy Composites

Materials ◽  
2019 ◽  
Vol 12 (19) ◽  
pp. 3103 ◽  
Author(s):  
Jin Tian ◽  
Ting Xu ◽  
Yefa Tan ◽  
Zhongwei Zhang ◽  
Binghui Tang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Graphene Oxide ◽  
Interfacial Properties ◽  
Propagation Path ◽  
Functionalized Graphene ◽  
Functionalized Graphene Oxide ◽  
Hyperbranched Polyesters ◽  
Microcrack Propagation ◽  
Wetting Property ◽  
Ep Matrix

In order to improve the interfacial properties of graphene oxide (GO) and epoxy resin (EP), hyperbranched polyesters with terminal carboxyl (HBP) non-covalently functionalized graphene oxide (HBP-GO) was achieved by strong π-π coupling between hyperbranched polyesters and GO nanosheets. The effects of non-covalent functionalization of GO on the dispersibility, wettability and interfacial properties were analyzed. The mechanical properties and enhancement mechanism of HBP-GO/EP composites were investigated. The results show that the hyperbranched polyesters is embedded in the GO layer due to its highly branched structure, which forms the steric hindrance effect between the GO nanosheets, effectively prevents the agglomeration of GO nanosheets, and significantly improved the dispersibility of GO. Simultaneously, the contact angle of HBP-GO with EP is reduced, the surface energy, interfacial energy and adhesion work are increased, then the wetting property of HBP-GO is significantly improved. The main toughening mechanism of HBP-GO is microcrack deflection induced by HBP-GO and plastic deformation of the EP matrix. In the microcrack propagation zones, HBP-GO may produce the pinning effect near the microcrack tips and change their stress state, resulting in microcrack deflection and bifurcation. So, the microcrack propagation path is more tortuous, which will consume much more fracture energy. Therefore, the mechanical properties of the HBP-GO/EP composites are greatly improved.

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