Towards hydrogen storage through an efficient ruthenium-catalyzed dehydrogenation of formic acid

Zhuo Xin, Jiahui Zhang, Katerina Sordakis, Matthias Beller, Chen Xia Du, Gabor Laurenczy, Yuehui Li

Research output: Contribution to journalArticlepeer-review

30 Scopus citations

Abstract

Hydrogen is of fundamental importance for the construction of modern clean-energy supply systems. In this context, the catalytic dehydrogenation of formic acid (FA) is a convenient method to generate H2 gas from an easily available liquid. One of the issues associated with current catalytic dehydrogenation systems is insufficient stability. Here, we present a robust and recyclable system for FA dehydrogenation by combining a ruthenium 1,1,1-tris(diphenylphosphinomethyl)ethane complex and aluminum trifluoromethanesulfonate (Al(OTf)3). This robust system allows steady H2 production under pressure and recycling for an additional 14 runs without any apparent loss of activity (turnover frequencies up to 1920 h1, turnover numbers up to 20 000). Notably, the catalyst can also be used for the dehydrogenation of formates and the reverse hydrogenation of bicarbonates and CO2.

Original languageEnglish
Pages (from-to), 2077-2082
JournalChemSusChem
Volume11
Issue number13
DOIs
StatePublished - 11 Jul 2018
Externally publishedYes

Keywords

  • Dehydrogenation
  • Formic acid
  • Homogeneous catalysis
  • Hydrogen
  • Ruthenium

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