Title:
Quantum Nature in the Interaction of Molecular Hydrogen with Porous Materials: Implications for Practical Hydrogen Storage
Year of Publication:
2020
Authors:
Srimanta Pakhira, Jose L. Mendoza-Cortes
Journal:
The Journal of Physical Chemistry C
Abstract:
The storage of hydrogen (H2) is of economic and ecological relevance, because it could potentially replace petroleum-based fuels. However, H2 storage at mild condition remains one of the bottlenecks for its widespread usage. In order to devise successful H2 storage strategies, there is a need for a fundamental understanding of the weak and elusive hydrogen interactions at the quantum mechanical level. One of the most promising strategies for storage at mild pressure and temperature is physisorption. Porous materials are specially effective at physisorption, however the process at the quantum level has been under-studied. Here, we present quantum calculations to study the interaction of H2 with building units of porous materials. We report 240 H2 complexes made of different transition metal (Tm) atoms, chelating ligands, spins, oxidation states, and geometrical configurations. We found that both the dispersion …
URL:
https://pubs.acs.org/doi/abs/10.1021/acs.jpcc.9b11939