Shahram Ajori - Department of Mechanical Engineering, University of Guilan, Rasht, Iran
Reza Ansari - Department of Mechanical Engineering, University of Guilan, Rasht, Iran
Sina malakpour - Department of Mechanical Engineering, University of Guilan, Rasht, Iran

Successful synthesis of the stable metal-free two-dimensional polymer graphitic carbon-nitride with remarkable properties has made it as one of the most promising nanostructures in many novel nanodevices, especially photocatalytic ones. Understanding the mechanical properties of nanostructures is of crucial importance. Thus, this study employs density functional theory (DFT) to obtain the mechanical properties of graphene-like graphitic carbon-nitride (g-C۳N۴) nanosheets such as Young’s, bulk and shear moduli and Poisson’s ratio. Based on the results, Young’s, bulk and shear moduli of this nanosheet are lower than those of graphene and hexagonal boron-nitride sheet. Besides, it is observed that the values of the aforementioned properties for graphene-like g-C۳N۴ nanosheets are higher than those of porous graphene and SiC. It is further observed that the Poisson’s ratio of graphene-like g-C۳N۴ nanosheets is lower than those of any similar two-dimensional graphitic structures.

Bulk modulus, density functional theory, Graphitic carbon-nitride, Shear modulus, Young’s Modulus