Ab initio study of adsorption properties of hazardous organic molecules on graphene: Phenol, phenyl azide, and phenylnitrene

作者：Lee Junsu; Min Kyung Ah; Hong Suklyun; Kim Gunn^*

来源：Chemical Physics Letters, 2015, 618: 57-62.

DOI：10.1016/j.cplett.2014.10.064

Phenol, phenyl azide, and phenylnitrene are hazardous organic molecules; therefore, the fabrication of sensors or filters with high sorption capabilities for the chemicals is necessary. Considering van der Waals interaction, we perform first-principles density functional theory calculations to investigate the adsorption properties of the hazardous molecules on graphene. For parallel stacking configurations, AB stacking is slightly more favorable than AA stacking for all the adsorbates that we considered. We find that phenyl azide has a higher adsorption energy than phenol. Phenylnitrene forms covalent bonds with graphene in oblique stacking structures, resulting in a bandgap opening in graphene.

• 出版日期2015-1-2