A Reversible Liquid Organic Hydrogen Carrier System Based on Methanol-Ethylenediamine and Ethylene Urea

Yinjun Xie, Peng Hu, Yehoshoa Ben-David, David Milstein

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7 Citations (Scopus)


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.

Original languageEnglish
Pages (from-to)5105-5109
Number of pages5
JournalAngewandte Chemie - International Edition
Issue number15
Publication statusPublished - Apr 1 2019



  • ethylenediamine
  • hydrogen storage
  • methanol
  • ruthenium pincer complex
  • urea hydrogenation

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)

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