A First-Principles Study of Hydrogen Molecules Adsorption on Graphene
| Periodical | Advanced Materials Research (Volume 213) |
|---|---|
| Main Theme | Advanced Materials Research |
| Edited by | Zhang Yushu |
| Pages | 586-589 |
| DOI | 10.4028/www.scientific.net/AMR.213.586 |
| Citation | M. Johari Roudi et al., 2011, Advanced Materials Research, 213, 586 |
| Online since | February, 2011 |
| Authors | M. Johari Roudi, T. Mahmoodi |
| Keywords | Adsorption, Density Function Theory (DFT), First Principles, Graphen, Hydrogen |
| Price | US$ 28,- |
Graphene is a 2D lattice of Carbon atoms which has a high potential to use it for hydrogen storage. In this paper we have studied theoretically the adsorption of hydrogen molecules on a single-layer graphene and we obtained the adsorption energy including optimized position and orientation of the hydrogen molecule with respect to the graphene surface in different points of the graphene lattice. We have done our calculations using Quantum-ESPRESSO code and applying pseudo-potential method in the framework of Density Functional Theory (DFT). We have used Local Density Approximation (LDA) for exchange correlation energy. Our result shows that adsorption energy is increased with decreasing the density of . However the maximum adsorption energy is occurred on the hollow position and for the surface homogenous arrangement.
