1. Evaluate the hydrogen adsorption energies at all hydrogen adsorption sites in order to understand the hydrogen adsorption mechanism in the Zeolitic Imidazoalte Framework-23 (ZIF-23).
2. Improve the hydrogen binding energies of the ZIF-23 by replacing Zn with larger metals such as Mg and Ca.
3. Determine the hydrogen capacity of this system at 77K and room temperature.
4. Synthesis the ZIF-23 and characterize its physical properties.