LAPSE:2023.29158
Published Article
LAPSE:2023.29158
A Use-Store-Reuse (USR) Concept in Catalytic HCOOH Dehydrogenation: Case-Study of a Ru-Based Catalytic System for Long-Term USR under Ambient O2
April 13, 2023
Commercial use of H2 production catalysts requires a repeated use/stop/store and reuse of the catalyst. Ideally, this cycle should be possible under ambient O2. Herein we exemplify the concept of Use-Store-Reuse (USR) of a (Ru-phosphine) catalyst in a biphasic catalytic system, for H2 production via dehydrogenation of HCOOH. The catalytic system can operate uninterrupted for at least four weeks, including storage and reuse cycles, with negligible loss of its catalytic efficiency. The catalytic system consisted of a RuP(CH2CH2PPh2)3 (i.e. RuPP3) in (tri-glyme/water) system, using KOH as a cocatalyst, to promote HCOOH deprotonation. In a USR cycle of 1 week, followed by storage for three weeks under ambient air and reuse, the system achieved in total TONs > 90,000 and TOFs > 4000 h−1. Thus, for the first time, a USR concept with a readily available stable ruthenium catalyst is presented, operating without any protection from O2 or light, and able to retain its catalytic performance.
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Keywords
Hydrogen, long-term operation (LTO), phosphine ligand, ruthenium complex, Use-Store-Reuse (USR)
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Suggested Citation
Theodorakopoulos M, Solakidou M, Deligiannakis Y, Louloudi M. A Use-Store-Reuse (USR) Concept in Catalytic HCOOH Dehydrogenation: Case-Study of a Ru-Based Catalytic System for Long-Term USR under Ambient O2. (2023). LAPSE:2023.29158
Author Affiliations
Theodorakopoulos M: Laboratory of Biomimetic Catalysis and Hybrid Materials, Department of Chemistry, University of Ioannina, GR45110 Ioannina, Greece [ORCID]
Solakidou M: Laboratory of Physical Chemistry of Materials and Environment, Department of Physics, University of Ioannina, GR45110 Ioannina, Greece [ORCID]
Deligiannakis Y: Laboratory of Physical Chemistry of Materials and Environment, Department of Physics, University of Ioannina, GR45110 Ioannina, Greece; Institute of Environment & Sustainable Development, University Research Center of Ioannina, GR45110 Ioannina, Greece
Louloudi M: Laboratory of Biomimetic Catalysis and Hybrid Materials, Department of Chemistry, University of Ioannina, GR45110 Ioannina, Greece; Institute of Environment & Sustainable Development, University Research Center of Ioannina, GR45110 Ioannina, Greece
Solakidou M: Laboratory of Physical Chemistry of Materials and Environment, Department of Physics, University of Ioannina, GR45110 Ioannina, Greece [ORCID]
Deligiannakis Y: Laboratory of Physical Chemistry of Materials and Environment, Department of Physics, University of Ioannina, GR45110 Ioannina, Greece; Institute of Environment & Sustainable Development, University Research Center of Ioannina, GR45110 Ioannina, Greece
Louloudi M: Laboratory of Biomimetic Catalysis and Hybrid Materials, Department of Chemistry, University of Ioannina, GR45110 Ioannina, Greece; Institute of Environment & Sustainable Development, University Research Center of Ioannina, GR45110 Ioannina, Greece
Journal Name
Energies
Volume
14
Issue
2
Article Number
en14020481
Year
2021
Publication Date
2021-01-18
Published Version
ISSN
1996-1073
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PII: en14020481, Publication Type: Journal Article
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LAPSE:2023.29158
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doi:10.3390/en14020481
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