Please use this identifier to cite or link to this item:
http://bura.brunel.ac.uk/handle/2438/28463
Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Worsley, M | - |
dc.contributor.author | Smulders, V | - |
dc.contributor.author | Mei, B | - |
dc.date.accessioned | 2024-03-04T10:31:52Z | - |
dc.date.available | 2024-03-04T10:31:52Z | - |
dc.date.issued | 2022-09-20 | - |
dc.identifier | ORCiD: Myles Worsley https://orcid.org/0000-0002-2036-9273 | - |
dc.identifier | ORCiD: Bastian Mei https://orcid.org/0000-0002-3973-9254 | - |
dc.identifier | 1077 | - |
dc.identifier.citation | Worsley, M., Smulders, V. and Mei, B. (2022) 'Controlled Synthesis of Chromium-Oxide-Based Protective Layers on Pt: Influence of Layer Thickness on Selectivity', Catalysts, 12 (10), 1077, pp. 1 - 12. doi: 10.3390/catal12101077. | en_US |
dc.identifier.uri | https://bura.brunel.ac.uk/handle/2438/28463 | - |
dc.description | Data Availability Statement The data presented in this study are available in Supplementary Material available online at: https://www.mdpi.com/2073-4344/12/10/1077#app1-catalysts-12-01077 . | en_US |
dc.description.abstract | Chromium-oxyhydroxide (CrxOyHz)-based thin films have previously been shown in photocatalysis and industrial chlorate production to prevent unwanted reduction reactions to occur, thereby enhancing the selectivity for hydrogen evolution and thus the overall process efficiency. Here, a highly reproducible synthesis protocol was developed to allow for the electrodeposition of CrxOyHz-based thin films with controlled thickness in the range of the sub-monolayer up to (>4) multilayer coverage. Electrodeposited CrxOyHz coatings were electrochemically characterized using voltammetry and stripping experiments, allowing thickness-dependent film selectivity to be deduced in detail. The results are discussed in terms of mass transport properties and structure of the electrodeposited chromium oxyhydroxide films. It is shown that the permeation of diatomic probe molecules, such as O2 and CO, was significantly reduced by films as thin as four monolayers. Importantly, it is shown that the prepared thin film coatings enabled prolonged hydrogen oxidation in the presence of CO (up to 5 vol.%), demonstrating the benefits of thin-film-protected electrocatalysts. In general, this study provides insight into the synthesis and use of thin-film-protected electrodes leading to improvements in (electro)catalyst selectivity and durability. | en_US |
dc.description.sponsorship | The Dutch Research Council (NWO), grant number 739.017.015. | en_US |
dc.format.extent | 1 - 12 | - |
dc.format.medium | Electronic | - |
dc.language | English | - |
dc.language.iso | en_US | en_US |
dc.publisher | MDPI | en_US |
dc.rights | Copyright © 2022 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). | - |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | - |
dc.subject | ultrathin oxide layers | en_US |
dc.subject | electrocatalysis | en_US |
dc.subject | hydrogen oxidation | en_US |
dc.subject | selectivity | en_US |
dc.subject | electrodeposition | en_US |
dc.subject | eQCM | en_US |
dc.title | Controlled Synthesis of Chromium-Oxide-Based Protective Layers on Pt: Influence of Layer Thickness on Selectivity | en_US |
dc.type | Article | en_US |
dc.identifier.doi | https://doi.org/10.3390/catal12101077 | - |
dc.relation.isPartOf | Catalysts | - |
pubs.issue | 10 | - |
pubs.publication-status | Published | - |
pubs.volume | 12 | - |
dc.identifier.eissn | 2073-4344 | - |
dc.rights.license | https://creativecommons.org/licenses/by/4.0/legalcode.en | - |
dc.rights.holder | The authors | - |
Appears in Collections: | The Experimental Techniques Centre |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
FullText.pdf | Copyright © 2022 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). | 2.37 MB | Adobe PDF | View/Open |
This item is licensed under a Creative Commons License