DC Field | Value | Language |
---|---|---|
dc.contributor.author | Nedrygailov, Ievgen I. | ko |
dc.contributor.author | Moon, Song Yi | ko |
dc.contributor.author | Park, Jeong Young | ko |
dc.date.accessioned | 2019-05-10T04:50:02Z | - |
dc.date.available | 2019-05-10T04:50:02Z | - |
dc.date.created | 2019-05-10 | - |
dc.date.created | 2019-05-10 | - |
dc.date.issued | 2019-04 | - |
dc.identifier.citation | SCIENTIFIC REPORTS, v.9 | - |
dc.identifier.issn | 2045-2322 | - |
dc.identifier.uri | http://hdl.handle.net/10203/261836 | - |
dc.description.abstract | Hot electrons generated on metal catalysts influence atomic and molecular processes, leading to hot electron-driven catalytic reactions. Here, we show the acceleration of electrocatalytic hydrogen evolution caused by internal injection of hot electrons on Pt/Si metal-semiconductor electrodes. When a forward bias voltage is applied to the Pt/Si contact, hot electrons are injected. The excess energy of these electrons allows them to reach the Pt/electrolyte interface and reduce the adsorbed hydrogen ions to form H-2 (2H(+) + 2e(-)-> H-2). We show that the onset potential of the hydrogen evolution reaction shifts positively by 160 mV while the cathodic current exhibits an 8-fold increase in the presence of hot electrons. The effect disappears when the thickness of the Pt film exceeds the mean free path of the hot electrons. The concept of a hot electron-driven reaction can lead to the development of a novel mechanism for controlling reactivity at liquid-solid interfaces. | - |
dc.language | English | - |
dc.publisher | NATURE PUBLISHING GROUP | - |
dc.title | Hot electron-driven electrocatalytic hydrogen evolution reaction on metal-semiconductor nanodiode electrodes | - |
dc.type | Article | - |
dc.identifier.wosid | 000464988500020 | - |
dc.identifier.scopusid | 2-s2.0-85064566821 | - |
dc.type.rims | ART | - |
dc.citation.volume | 9 | - |
dc.citation.publicationname | SCIENTIFIC REPORTS | - |
dc.identifier.doi | 10.1038/s41598-019-42566-3 | - |
dc.contributor.localauthor | Park, Jeong Young | - |
dc.contributor.nonIdAuthor | Nedrygailov, Ievgen I. | - |
dc.description.isOpenAccess | Y | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordPlus | CHARGE-TRANSFER | - |
dc.subject.keywordPlus | INDUCED DISSOCIATION | - |
dc.subject.keywordPlus | NANOSTRUCTURES | - |
dc.subject.keywordPlus | MECHANISM | - |
dc.subject.keywordPlus | OXIDATION | - |
dc.subject.keywordPlus | LIGHT | - |
dc.subject.keywordPlus | FIELD | - |
dc.subject.keywordPlus | H-2 | - |
dc.subject.keywordPlus | CO | - |
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