Methyl-mercaptane adsorption and sensing on Fe-/Co-graphene structures: A DFT study

Abstract

In this research, the adsorption and detection abilities of Fe and Co doped graphene structures for methyl-mercaptan molecule were investigated by Density Functional Theory (DFT) method. B3LYP hybrid functional and LANL2DZ/6-31G(d,p) basis sets were used in the calculations. At the end of the adsorption processes, Fe and Co doped graphene structures were determined to be suitable adsorbents for the methylmercaptan molecule. In addition, charge transfer happened from the methyl-mercaptan molecule to the Fe and Co-doped graphene structures. The electronic sensor and the Φ-type sensor properties were also investigated and it was determined that Fe-graphene structure could be only used as an electronic sensor for methyl-mercaptan molecule at room temperature.