Abstract
Liquid organic hydrogen carriers (LOHC) can store acceptable amounts of hydrogen at ambient temperature and pressure for long periods of time, usually with a storage capacity of 6–8 wt%, and are considered as high-density hydrogen storage materials. Catalytic dehydrogenation of LOHCs is currently a research hot topic. The unique "inside-out" heating mechanism of microwaves is more conducive to the catalysis of LOHC than conventional heating. In this paper, the application of microwaves in catalyst preparation and reaction process were reviewed. Furthermore, three representative LOHC materials were selected for the enhanced dehydrogenation via microwave action. This paper summarizes the enhancement of microwave heating on the LOHC catalytic process and puts forward the prospect for the future, which should further increase the advantages of microwaves in terms of energy utilization efficiency, using numerical simulations to predict the microwave action and explain the mechanism.
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