• 文献标题:   Engineering graphene/carbon nanotube hybrid for direct electron transfer of glucose oxidase and glucose biosensor
  • 文献类型:   Article
  • 作  者:   CHEN JL, ZHENG XL, MIAO FJ, ZHANG JN, CUI XQ, ZHENG WT
  • 作者关键词:   graphene, carbon nanotube, glucose oxidase, threedimensional hybrid, biosensor, direct electrochemistry
  • 出版物名称:   JOURNAL OF APPLIED ELECTROCHEMISTRY
  • ISSN:   0021-891X EI 1572-8838
  • 通讯作者地址:   Jilin Univ
  • 被引频次:   30
  • DOI:   10.1007/s10800-012-0461-x
  • 出版年:   2012

▎ 摘  要

The graphene/carbon nanotube hybrid was designed and implemented by a deoxygenation process for direct electron transfer of glucose oxidase and glucose biosensor. The procedure was analyzed by transmission electron microscopy, X-ray photoelectron spectroscopy, and Raman spectra, etc. The strategy of structurally engineering one-dimensional carbon nanotube (CNT) and two-dimensional graphene oxide (GO) presented three benefits: (a) a deoxygenation process between GO and acid-CNT was introduced under strongly alkaline condition; (b) GO prevented the irreversible integration of CNT; and (c) CNT hindered the restacking of GO. The RGO interacted with CNT through the van der Waals forces and pi-pi stacking interaction. The three-dimensional hybrid not only had a high surface area, but also exhibited a good electronic conductivity. A direct electrochemistry of glucose oxidase was obtained on the nanohybrid modified electrode which showed good response for glucose sensing. This study would provide a facile and green method for the preparation of nanohybrid for a wide range of applications including biosensing, super capacitor, and transparent electrode.