Synthesis, characterization and electrochemical properties of functionalized graphene oxide

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• 作者：Murugan Veerapandian^a ; ^b ; Min-Ho Lee^b ; ; Karthikeyan Krishnamoorthy^c ; Kyusik Yun^a ; ^{ykyusik@gachon.ac.kr}
• 刊名：Carbon
• 出版年：2012
• 出版时间：September, 2012
• 年：2012
• 卷：50
• 期：11
• 页码：4228-4238
• 全文大小：1528 K

文摘

Graphene oxide (GO) was functionalized by a simple reaction of its carboxylic acid groups with a silanized-metalloid polymer, which gave the resulting hybrid GO the property of efficient dispersion in a variety of solvents. Spectroscopic investigations show that the covalent attachment is effectively accomplished through an amidation process. The combination of a metalloid polymer and GO is unique and the composite material exhibits interesting features not seen in the individual structures. The electrochemical properties of this metalloid-polymer-GO were demonstrated by immobilizing the sample on a conventional gold-printed circuit board (Au-PCB) electrode. Functionalized GO showed a perfect scaling of steady-state currents with correlation coefficients of 0.9600 (I_pc) and 0.9552 (I_pa), indicating the promise of this new GO hybrid as a transducer material for many sensing applications.