Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 58, Issue 15, Pages 5105-5109Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201901695
Keywords
ethylenediamine; hydrogen storage; methanol; ruthenium pincer complex; urea hydrogenation
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Funding
- European Research Council [ERC AdG 692775]
- Alternative Sustainability and Energy Research Initiative (SAERI)
- Feinberg Graduate School of The Weizmann Institute of Science
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A novel liquid organic hydrogen carrier (LOHC) system, with a high theoretical hydrogen capacity, based on the unpresented hydrogenation of ethylene urea to ethylenediamine and methanol, and its reverse dehydrogenative coupling, was established. For the dehydrogenation only a small amount of solvent is required. This system is rechargeable, as the H-2-rich compounds could be regenerated by hydrogenation of the resulting dehydrogenation mixture. Both directions for hydrogen loading and unloading were achieved using the same catalyst, under relatively mild conditions. Mechanistic studies reveal the likely pathway for H-2-lean compounds formation.
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