Computational study of methyl derivatives of ammonia borane for hydrogen storage |
| |
Authors: | Sun Cheng-Hua Yao Xiang-Dong Du Ai-Jun Li L Smith Sean Lu Gao-Qing |
| |
Institution: | ARC Centre of Excellence for Functional Nanomaterials, School of Engineering and Australian Institute of Bioengineering and Nanotechnology, The University of Queensland, QLD 4072, Australia. |
| |
Abstract: | The structures and thermodynamic properties of methyl derivatives of ammonia-borane (BH3NH3, AB) have been studied with the frameworks of density functional theory and second-order M?ller-Plesset perturbation theory. It is found that, with respect to pure, methyl ammonia-boranes show higher complexation energies and lower reaction enthalpies for the release of H2, together with a slight increment of the activation barrier. These results indicate that the methyl substitution can enhance the reversibility of the system and prevent the formation of BH3/NH3, but no enhancement of the release rate of H2 can be expected. |
| |
Keywords: | |
本文献已被 PubMed 等数据库收录! |
|