dc.contributor.author | Kirste, Karsten Granlund | |
dc.contributor.author | McAulay, Kate | |
dc.contributor.author | E. Bell, Tamsin | |
dc.contributor.author | Stoian, Dragos | |
dc.contributor.author | Laassiri, Said | |
dc.contributor.author | Hargreaves, Justin S. J. | |
dc.contributor.author | Mathisen, Karina | |
dc.contributor.author | Torrente-Murciano, Laura | |
dc.date.accessioned | 2020-09-14T07:46:57Z | |
dc.date.available | 2020-09-14T07:46:57Z | |
dc.date.created | 2020-08-18T12:13:14Z | |
dc.date.issued | 2020 | |
dc.identifier.issn | 0926-3373 | |
dc.identifier.uri | https://hdl.handle.net/11250/2677536 | |
dc.description.abstract | On-demand production of hydrogen from ammonia is a challenge limiting the implementation of ammonia as a long term hydrogen vector to overcome the difficulties associated with hydrogen storage. Herein, we present the development of catalysts for the on-demand production of hydrogen from ammonia by combining metals with high and low N-adatom adsorption energies. In this way, cobalt-rhenium (Co-Re) catalysts show high activity mimicking that of ruthenium. EXAFS/XANES analyses demonstrate that the bimetallic Co-Re contribution is responsible for the activity and the stability of the catalysts in consecutive runs with no observable formation of nitrides (Co-N and Re-N) occurring under the ammonia atmosphere. While cobalt is partially re-oxidised under ammonia, re-reduction in the presence of rhenium is observed at higher temperatures, coinciding with the on-set of catalytic activity which is accompanied by minor structural changes. These results provide insight for the development of highly active alloy based ammonia decomposition catalysts. | en_US |
dc.language.iso | eng | en_US |
dc.publisher | Elsevier | en_US |
dc.rights | Navngivelse 4.0 Internasjonal | * |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/deed.no | * |
dc.title | COx-free hydrogen production from ammonia – mimicking the activity of Ru catalysts with unsupported Co-Re alloys | en_US |
dc.type | Peer reviewed | en_US |
dc.type | Journal article | en_US |
dc.description.version | publishedVersion | en_US |
dc.source.journal | Applied Catalysis B: Environmental | en_US |
dc.identifier.doi | 10.1016/j.apcatb.2020.119405 | |
dc.identifier.cristin | 1823802 | |
dc.description.localcode | 2020 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). | en_US |
cristin.ispublished | true | |
cristin.fulltext | postprint | |
cristin.qualitycode | 1 | |