• 文献标题:   Oxygen Reduction on Anthraquinone Diazonium Compound Derivatised Multi-walled Carbon Nanotube and Graphene Based Electrodes
  • 文献类型:   Article
  • 作  者:   MOOSTE M, KIBENAPOLDSEPP E, MATISEN L, TAMMEVESKI K
  • 作者关键词:   diazonium salt, surface modification, graphene, carbon nanotube, oxygen reduction
  • 出版物名称:   ELECTROANALYSIS
  • ISSN:   1040-0397 EI 1521-4109
  • 通讯作者地址:   Univ Tartu
  • 被引频次:   6
  • DOI:   10.1002/elan.201600451
  • 出版年:   2017

▎ 摘  要

In this work, graphene and multi-walled carbon nanotubes were derivatised with anthraquinone (AQ) groups using spontaneous or electrochemical grafting of Fast Red AL salt. Glassy carbon (GC) electrodes were coated with AQ-modified carbon nanomaterials to study the oxygen reduction reaction (ORR). These nanomaterials were characterised by X-ray photoelectron spectroscopy and multilayer formation of AQ on the electrografted electrodes was observed. All the modified electrodes showed enhanced electrocatalytic activity towards the ORR in alkaline media. High AQ loading on the electrodes was found and the number of electrons transferred per O-2 molecule was between 2 and 4. In addition, the stability testing of AQ-derivatised carbon nanomaterial-coated GC electrodes was performed.