Hydrogenated Graphene for Hydrogen Storage Applications
Fully hydrogenated graphene, termed “graphane”, is composed of 7.7 % hydrogen by mass, and possesses unique physical, electrical, and optical properties. Like graphene however, pristine graphane is challenging to isolate in bulk form. However, graphite and similar carbon allotropes can be chemically hydrogenated to yield similar materials which are colloquially termed hydrogenated graphene. These materials are stable under ambient conditions, but will liberate hydrogen gas upon thermal decomposition above 400° C, making them promising materials for hydrogen storage.
Our group is interested in evaluating the viability of hydrogenated graphene as a means of hydrogen storage.1,2 We are currently perusing fundamental studies regarding the material’s scaled up synthesis, characterization and testing. In order to identify the material’s volumetric and gravimetric hydrogen storage capacity, as well as the purity of the evolved hydrogen gas, accurate characterization and quantification of the generated gases are required.
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