The Subtleties of the Reversible Hydrogen Evolution Reaction Arising from the Nonunity Stoichiometry
© 2015 American Chemical Society. The proton/hydrogen redox couple underpins the electrochemical sciences; however, the nonunity stoichiometry of the reaction leads to distinct voltammetric complications. This Article provides a joint analytical, numerical, and experimental investigation into the re...
| Main Authors: | , , , , , |
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| Format: | Journal article |
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2015
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| _version_ | 1797076944608559104 |
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| author | Jiao, X Batchelor-McAuley, C Kaetelhoen, E Ellison, J Tschulik, K Compton, R |
| author_facet | Jiao, X Batchelor-McAuley, C Kaetelhoen, E Ellison, J Tschulik, K Compton, R |
| author_sort | Jiao, X |
| collection | OXFORD |
| description | © 2015 American Chemical Society. The proton/hydrogen redox couple underpins the electrochemical sciences; however, the nonunity stoichiometry of the reaction leads to distinct voltammetric complications. This Article provides a joint analytical, numerical, and experimental investigation into the reversible hydrogen evolution reaction at a platinum microelectrode. Literature obscurities and nuances are highlighted and corrected, allowing the presentation of an holistic overview of the electrochemical reaction at the reversible limit. Under such conditions, it is demonstrated, first, how the reaction may be misinterpreted as being irreversible and, second, that the transfer coefficient for the reversible (Nernstian) hydrogen evolution reaction is equal to 2. Importantly, the use of the reversible hydrogen electrode (RHE) as a reference potential in voltammetric experiments is critically evaluated. |
| first_indexed | 2024-03-07T00:10:48Z |
| format | Journal article |
| id | oxford-uuid:7929dd60-6945-4261-b860-5d3206d686ca |
| institution | University of Oxford |
| last_indexed | 2024-03-07T00:10:48Z |
| publishDate | 2015 |
| record_format | dspace |
| spelling | oxford-uuid:7929dd60-6945-4261-b860-5d3206d686ca2022-03-26T20:35:38ZThe Subtleties of the Reversible Hydrogen Evolution Reaction Arising from the Nonunity StoichiometryJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:7929dd60-6945-4261-b860-5d3206d686caSymplectic Elements at Oxford2015Jiao, XBatchelor-McAuley, CKaetelhoen, EEllison, JTschulik, KCompton, R© 2015 American Chemical Society. The proton/hydrogen redox couple underpins the electrochemical sciences; however, the nonunity stoichiometry of the reaction leads to distinct voltammetric complications. This Article provides a joint analytical, numerical, and experimental investigation into the reversible hydrogen evolution reaction at a platinum microelectrode. Literature obscurities and nuances are highlighted and corrected, allowing the presentation of an holistic overview of the electrochemical reaction at the reversible limit. Under such conditions, it is demonstrated, first, how the reaction may be misinterpreted as being irreversible and, second, that the transfer coefficient for the reversible (Nernstian) hydrogen evolution reaction is equal to 2. Importantly, the use of the reversible hydrogen electrode (RHE) as a reference potential in voltammetric experiments is critically evaluated. |
| spellingShingle | Jiao, X Batchelor-McAuley, C Kaetelhoen, E Ellison, J Tschulik, K Compton, R The Subtleties of the Reversible Hydrogen Evolution Reaction Arising from the Nonunity Stoichiometry |
| title | The Subtleties of the Reversible Hydrogen Evolution Reaction Arising from the Nonunity Stoichiometry |
| title_full | The Subtleties of the Reversible Hydrogen Evolution Reaction Arising from the Nonunity Stoichiometry |
| title_fullStr | The Subtleties of the Reversible Hydrogen Evolution Reaction Arising from the Nonunity Stoichiometry |
| title_full_unstemmed | The Subtleties of the Reversible Hydrogen Evolution Reaction Arising from the Nonunity Stoichiometry |
| title_short | The Subtleties of the Reversible Hydrogen Evolution Reaction Arising from the Nonunity Stoichiometry |
| title_sort | subtleties of the reversible hydrogen evolution reaction arising from the nonunity stoichiometry |
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