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

Fingerprint

Graphite
Selenium
selenium
Graphene
graphene
Gases
gases
Functional groups
Oxides
Selenium compounds
Chalcogens
selenium compounds
Selenium Compounds
Oxygen
oxides
oxygen
Sulfur
Chemical elements
attachment
sulfur

All Science Journal Classification (ASJC) codes

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

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
Sturala, Jiri ; Luxa, Jan ; Plutnar, Jan ; Janoušek, Zbyněk ; Sofer, Zdenek ; Pumera, Martin. / Selenium covalently modified graphene : Towards gas sensing. In: 2D Materials. 2019 ; Vol. 6, No. 3.
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Sturala, J, Luxa, J, Plutnar, J, Janoušek, Z, Sofer, Z & Pumera, M 2019, 'Selenium covalently modified graphene: Towards gas sensing', 2D Materials, vol. 6, no. 3, 034006. https://doi.org/10.1088/2053-1583/ab20f2

Selenium covalently modified graphene : Towards gas sensing. / Sturala, Jiri; Luxa, Jan; Plutnar, Jan; Janoušek, Zbyněk; Sofer, Zdenek; Pumera, Martin.

In: 2D Materials, Vol. 6, No. 3, 034006, 12.06.2019.

Research output: Contribution to journalArticle

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T1 - Selenium covalently modified graphene

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AU - Sturala, Jiri

AU - Luxa, Jan

AU - Plutnar, Jan

AU - Janoušek, Zbyněk

AU - Sofer, Zdenek

AU - Pumera, Martin

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Sturala J, Luxa J, Plutnar J, Janoušek Z, Sofer Z, Pumera M. Selenium covalently modified graphene: Towards gas sensing. 2D Materials. 2019 Jun 12;6(3). 034006. https://doi.org/10.1088/2053-1583/ab20f2