• 文献标题:   Synthesis of Cobalt hexacyanoferrate decorated graphene oxide/carbon nanotubes-COOH hybrid and their application for sensitive detection ofhydrazine
  • 文献类型:   Article
  • 作  者:   DENG KQ, LI CX, QIU XY, ZHOU JH, HOU ZH
  • 作者关键词:   nanohybrid, graphene oxide, multiwalled carbon nanotubescooh, cobalt hexacyanoferrate, hydrazine
  • 出版物名称:   ELECTROCHIMICA ACTA
  • ISSN:   0013-4686 EI 1873-3859
  • 通讯作者地址:   Hunan Univ Sci Technol
  • 被引频次:   32
  • DOI:   10.1016/j.electacta.2015.06.104
  • 出版年:   2015

▎ 摘  要

A three-dimensional graphene oxide/carbon nanotubes-COOH hybrid (GO/CNTs-COOH) consisted of two-dimensional graphene oxide (GO) and one-dimensional carbon nanotubes-COOH (CNTs-COOH) was synthesized. The GO/CNTs-COOH hybrid exhibited excellent water-solubility owing to the high hydrophilicity of GO components and the carboxylation of carbon nanotubes. The cobalt hexacyanoferrate decorated GO/CNTs-COOH (CoHCF/GO/CNTs-COOH) has been prepared using electrostatic adsorption of Co2+ on GO/CNTs-COOH and K-4[Fe(CN)(6)] as an in-situ chemical precipitant. FT-IR, Raman spectroscopy, TEM, SEM, and cyclic voltammetry were utilized to characterize the nanohybrid. The electrochemistry behavior of hydrazine on different modified electrodes was also studied. The CoHCF/GO/CNTs-COOH modified GCE (CoHCF/GO/CNTs-COOH/GCE) exhibited greatly enhanced electrocatalytic performance towards electro-oxidation of hydrazine. The oxidation peak currents showed good linear relationships with concentration of hydrazine. It can be applied to detect hydrazine in samples sensitively. (C) 2015 Elsevier Ltd. All rights reserved.