Carter, James H., Shah, Parag M., Nowicka, Ewa  ORCID: https://orcid.org/0000-0001-7449-2720, Freakley, Simon J., Morgan, David ORCID: https://orcid.org/0000-0002-6571-5731, Golunski, Stan and Hutchings, Graham J. ORCID: https://orcid.org/0000-0001-8885-1560
2019.
Enhanced activity and stability of Gold/Ceria-Titania for the low-temperature water-gas shift reaction.
Frontiers in Chemistry
7
, 443.
10.3389/fchem.2019.00443
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Abstract
Gold supported on ceria-zirconia is one of the most active low temperature water-gas shift catalysts reported to date but rapid deactivation occurs under reaction conditions. In this study, ceria-titania was evaluated as an alternative catalyst support. Materials of different Ce:Ti compositions were synthesized using a sol-gel methodology and gold was supported onto these using a deposition-precipitation method. They were then investigated as catalysts for the low-temperature water-gas shift reaction. Au/Ce0.2Ti0.8O2 exhibited superior activity and stability to a highly active, previously reported gold catalyst supported on ceria-zirconia. High activity and stability was found to be related to the support comprising a high number of oxygen defect sites and a high specific surface area. These properties were conducive to forming a highly active catalyst with well-dispersed Au species.
| Item Type: | Article |
|---|---|
| Date Type: | Publication |
| Status: | Published |
| Schools: | Schools > Chemistry Research Institutes & Centres > Cardiff Catalysis Institute (CCI) |
| Publisher: | Frontiers Media |
| ISSN: | 2296-2646 |
| Funders: | European Research Council |
| Date of First Compliant Deposit: | 18 June 2019 |
| Date of Acceptance: | 29 May 2019 |
| Last Modified: | 05 Feb 2025 22:25 |
| URI: | https://orca.cardiff.ac.uk/id/eprint/123546 |
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