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  • 文献标题:   Nitrogen-doped graphene quantum dots decorated graphite foam as ultra-high active free-standing electrode for electrochemical hydrogen evolution and phenol degradation
  • 文献类型:   Article
  • 作　　者:   GUO XM, ZHU YZ, HAN WW, FAN XB, LI Y, ZHANG FB, ZHANG GL, PENG WC, WANG SB
  • 作者关键词:   graphene quantum dot, ndoping, graphite foam, electrochemical hydrogen evolution, peroxymonosulfate activation, degradation
  • 出版物名称:   CHEMICAL ENGINEERING SCIENCE
  • ISSN:   0009-2509 EI 1873-4405
  • 通讯作者地址:   Tianjin Univ
  • 被引频次:   13
  • DOI:   10.1016/j.ces.2018.04.072
  • 出版年:   2019

▎ 摘　　要

In this study, nitrogen-doped graphene quantum dots (N-GQDs, similar to 5 nm) were synthesized and supported on graphite foam (GF) by a facile hydrothermal route. The obtained N-GQDs/GF composite demonstrates as an ultra-active free-standing electrode for electrochemical hydrogen evolution and activation of peroxymonosulfate to degrade phenol pollutant. An overpotential in the electrochemical hydrogen evolution is only -72 mV vs. RHE at 10 mA/cm(2) with a Tafel slope of 84 mV/Dec. The N-GQDs/GF electrode can also achieve 100% phenol removal in short time in electrochemical degradation. (C) 2018 Elsevier Ltd. All rights reserved.