Acta Phys. -Chim. Sin. ›› 2012, Vol. 28 ›› Issue (12): 2867-2873.doi: 10.3866/PKU.WHXB201209201

• ELECTROCHEMISTRY AND NEW ENERGY • Previous Articles     Next Articles

Direct Electrochemistry and Immobilization of Glucose Oxidase on Nano-Carbon Aerogels

YU Zhi-Hui1, SU Ting-Ting1, REN Cui-Hua1, LI Fan1, XIA Ding-Guo2, CHENG Shui-Yuan1   

  1. 1 College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124, P. R. China;
    2 College of Engineering, Peking University, Beijing 100871, P. R. China
  • Received:2012-07-23 Revised:2012-09-19 Published:2012-11-14
  • Contact: XIA Ding-Guo E-mail:dgxia@pku.edu.cn
  • Supported by:

    The project was supported by the National Natural Science Foundation of China (50974006), General Program of Science and Technology Development Project of Beijing Municipal Education Commission of China (KM201210005008), Deepening Plan of Talented Personnel in Beijing-Promising Key Projects of China (PHR201007105).

Abstract:

Nano-carbon aerogels (CA) were prepared by the reaction between resorcinol and formaldehyde in alkaline conditions. The morphology and microstructure of the CA was investigated by scanning electron microscopy and transmission electron microscopy. The specific area and the pore size distribution were calculated from the N2 adsorption-desorption isotherm. Glucose oxidase (GOD)/CA/ glassy carbon (GC) electrodes were prepared by immobilizing GOD on the surface of nano-carbon aerogels. The electrocatalytic properties of GOD/CA/GC electrodes were characterized by cyclic voltammetry in phosphate buffer medium (0.1 mol·L-1). The results showed that GOD can be immobilized on the nano-carbon aerogels, and that the biological activation of GOD was retained. The GOD/CA/GC electrode exhibits good direct electrochemical and electro-catalytic performance without electron mediators.

Key words: Carbon aerogel, Glucose oxidase, Direct electrochemistry

MSC2000: 

  • O646