Selenium covalently modified graphene: Towards gas sensing

Jiri Sturala, Jan Luxa, Jan Plutnar, Zbyněk Janoušek, Zdenek Sofer, Martin Pumera

Research output: Contribution to journalArticle

Abstract

The research in the area of graphene derivatives containing chalcogen elements is currently an exclusive domain of oxygen-and sulfur-containing functional groups. Here we report an effective introduction of selenium-based organic functional groups and propose a mechanism of their attachment to graphene and graphene-related materials. Fluorographene can be effectively functionalized by selenium-containing group, forming C-Se bonds without undesired formation of elemental selenium, using selenourea. A similar reaction on graphene oxide is accompanied by the formation of elemental selenium due to oxidation of selenourea by oxygen-containing functional groups of graphene oxide. The formation of C-Se bonds was confirmed by several spectroscopic methods. The selenium covalently-modified graphene represents the first example of graphene-selenium compound with potential application in gas sensing.

Original languageEnglish
Article number034006
Journal2D Materials
Volume6
Issue number3
DOIs
Publication statusPublished - 2019 Jun 12

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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  • Cite this

    Sturala, J., Luxa, J., Plutnar, J., Janoušek, Z., Sofer, Z., & Pumera, M. (2019). Selenium covalently modified graphene: Towards gas sensing. 2D Materials, 6(3), [034006]. https://doi.org/10.1088/2053-1583/ab20f2