• 文献标题:   Reduced Graphene Oxide Aerogel inside Melamine Sponge as an Electrocatalyst for the Oxygen Reduction Reaction
  • 文献类型:   Article
  • 作  者:   MANZHOS RA, BASKAKOV SA, KABACHKOV EN, KOREPANOV VI, DREMOVA NN, BASKAKOVA YV, KRIVENKO AG, SHULGA YM, GUTSEV GL
  • 作者关键词:   reduced graphene oxide aerogel, melamine sponge, oxygen reduction reaction, lyophilization, composite material, linear sweep voltammetry
  • 出版物名称:   MATERIALS
  • ISSN:  
  • 通讯作者地址:  
  • 被引频次:   4
  • DOI:   10.3390/ma14020322
  • 出版年:   2021

▎ 摘  要

A graphene oxide aerogel (GOA) was formed inside a melamine sponge (MS) framework. After reduction with hydrazine at 60 degrees C, the electrical conductive nitrogen-enriched rGOA-MS composite material with a specific density of 20.1 mg/cm(3) was used to fabricate an electrode, which proved to be a promising electrocatalyst for the oxygen reduction reaction. The rGOA-MS composite material was characterized by elemental analysis, scanning electron microscopy, X-ray photoelectron spectroscopy, and Raman spectroscopy. It was found that nitrogen in the material is presented by different types with the maximum concentration of pyrrole-like nitrogen. By using Raman scattering it was established that the rGOA component of the material is graphene-like carbon with an average size of the sp(2)-domains of 5.7 nm. This explains a quite high conductivity of the composite obtained.