• 文献标题:   Facile Preparation of Hemin/Polypyrrole/N, B-Co-Doped Graphene Nanocomposites for Non-Enzymatic H2O2 Determination
  • 文献类型:   Article
  • 作  者:   CAO Y, QI YL, MENG XT, SI WM, HAO QL, LEI W, LI J, CAO J, LI XW, LI QH, WANG FG
  • 作者关键词:  
  • 出版物名称:   JOURNAL OF THE ELECTROCHEMICAL SOCIETY
  • ISSN:   0013-4651 EI 1945-7111
  • 通讯作者地址:   Shandong Univ Technol
  • 被引频次:   0
  • DOI:   10.1149/2.0961813jes
  • 出版年:   2018

▎ 摘  要

A novel hydrogen peroxide non-enzymatic sensor was fabricated based on efficiently dispersed hemin on boron/nitrogen-co-doped graphene. Which is prepared by the chemically polymerization of pyrrole on graphene oxide, and the following reducing/doping with dimethylamine borane was then performed. Hemin was anchored homogeneously on the surface of the nanocomposite with high efficient loading amount during this reducing/doping process (3.341 x 10(-9) mol cm(-2)). Plenty of efficient electro-active sites and high-speed charge-transfer between hemin and polypyrrole/B, N-co-doped graphene result in high electrocatalytic activity for H2O2 reduction. The hemin/polypyrrole/B, N-co-doped graphene nanocomposite was therefore utilized to fabricate a H2O2 non-enzymatic sensor, which shows a wide linear range of 0.05-900 mu M with a detection limit of 23.9 nM. Also, this sensor displays good selectivity and stability. (C) 2018 The Electrochemical Society.