Iridium Catalyzed Dehydrogenation in a Continuous Flow Reactor as a Tool Towards Practical On-Board Hydrogen Generation From LOHCs
Polukeev, Alexey V. LU ; Wallenberg, Reine LU ; Uhlig, Jens LU
; Hulteberg, Christian P.
LU
and Wendt, Ola F.
LU
(2022)
In ChemSusChem
15(8).
- Abstract
To enable the large-scale use of hydrogen fuel cells for mobility applications, convenient methods for on-board hydrogen storage and release need to be developed. A promising approach is liquid organic hydrogen carriers (LOHCs), since these are safe, available on a large scale and compatible with existing re-fuelling infrastructure. Usually, LOHC dehydrogenation is carried out in batch-type reactors by transition metals and their complexes and suffers from slow H 2 release kinetics and/or inability to reach high energy density by weight due to low conversion or the need to dilute the reaction mixture. Here we report the use of a continuous flow reactor in combination with a heterogenized iridium pincer complex, which enables a... (More)
To enable the large-scale use of hydrogen fuel cells for mobility applications, convenient methods for on-board hydrogen storage and release need to be developed. A promising approach is liquid organic hydrogen carriers (LOHCs), since these are safe, available on a large scale and compatible with existing re-fuelling infrastructure. Usually, LOHC dehydrogenation is carried out in batch-type reactors by transition metals and their complexes and suffers from slow H 2 release kinetics and/or inability to reach high energy density by weight due to low conversion or the need to dilute the reaction mixture. Here we report the use of a continuous flow reactor in combination with a heterogenized iridium pincer complex, which enables a tremendous increase in LOHC dehydrogenation rates. Thus, dehydrogenation of isopropanol is performed in a regime that in terms of gravimetric energy density, hydrogen generation rate and precious metal content is potentially compatible with applications in a fuel-cell powered car.
(Less)
- author
- Polukeev, Alexey V.
LU
; Wallenberg, Reine
LU
; Uhlig, Jens
LU
; Hulteberg, Christian P.
LU
and Wendt, Ola F.
LU
- organization
- publishing date
- 2022-03-09
- type
- Contribution to journal
- publication status
- published
- subject
- in
- ChemSusChem
- volume
- 15
- issue
- 8
- article number
- e202200085
- publisher
- John Wiley & Sons Inc.
- external identifiers
-
- pmid:35263025
- scopus:85127240431
- ISSN
- 1864-564X
- DOI
- 10.1002/cssc.202200085
- language
- English
- LU publication?
- yes
- additional info
- © 2022 Wiley-VCH GmbH.
- id
- 7208e2cb-4d38-45db-9e64-029af3f02165
- date added to LUP
- 2022-03-12 20:10:20
- date last changed
- 2025-10-20 23:40:12
@article{7208e2cb-4d38-45db-9e64-029af3f02165,
abstract = {{<p>To enable the large-scale use of hydrogen fuel cells for mobility applications, convenient methods for on-board hydrogen storage and release need to be developed. A promising approach is liquid organic hydrogen carriers (LOHCs), since these are safe, available on a large scale and compatible with existing re-fuelling infrastructure. Usually, LOHC dehydrogenation is carried out in batch-type reactors by transition metals and their complexes and suffers from slow H 2 release kinetics and/or inability to reach high energy density by weight due to low conversion or the need to dilute the reaction mixture. Here we report the use of a continuous flow reactor in combination with a heterogenized iridium pincer complex, which enables a tremendous increase in LOHC dehydrogenation rates. Thus, dehydrogenation of isopropanol is performed in a regime that in terms of gravimetric energy density, hydrogen generation rate and precious metal content is potentially compatible with applications in a fuel-cell powered car.</p>}},
author = {{Polukeev, Alexey V. and Wallenberg, Reine and Uhlig, Jens and Hulteberg, Christian P. and Wendt, Ola F.}},
issn = {{1864-564X}},
language = {{eng}},
month = {{03}},
number = {{8}},
publisher = {{John Wiley & Sons Inc.}},
series = {{ChemSusChem}},
title = {{Iridium Catalyzed Dehydrogenation in a Continuous Flow Reactor as a Tool Towards Practical On-Board Hydrogen Generation From LOHCs}},
url = {{http://dx.doi.org/10.1002/cssc.202200085}},
doi = {{10.1002/cssc.202200085}},
volume = {{15}},
year = {{2022}},
}