Graphene oxides exhibit limited cathodic potential window due to their inherent electroactivity

Her Shuang Toh, Adriano Ambrosi, Chun Kiang Chua, Martin Pumera

Research output: Contribution to journalArticlepeer-review

45 Citations (Scopus)


Graphene oxides are considered to show great promise for the construction of high-performance electrochemical devices for sensing and energy storage applications. Herein, we show that, despite the advantages of graphene oxides, such as facile preparation in bulk quantities and enhanced electrochemical performances, these electrode materials, namely, graphene oxide, chemically reduced graphene oxide, and graphite oxide, show very limited potential windows in the cathodic region because of their inherent electroactivity. This has a profound influence on the use of these materials in electrochemical devices when the cathodic part of the electrochemical window for the reduction of electrolytes is required. The highly limited electrochemical window of these graphene oxides must be taken into account in the construction of new electrochemical devices working in the cathodic region.

Original languageEnglish
Pages (from-to)17647-17650
Number of pages4
JournalJournal of Physical Chemistry C
Issue number36
Publication statusPublished - 2011 Sept 15

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Energy(all)
  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films


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