dc.identifier.uri |
http://dx.doi.org/10.15488/16307 |
|
dc.identifier.uri |
https://www.repo.uni-hannover.de/handle/123456789/16434 |
|
dc.contributor.author |
Jeon, Tae Hwa
|
|
dc.contributor.author |
Monllor–Satoca, Damián
|
|
dc.contributor.author |
Moon, Gun–hee
|
|
dc.contributor.author |
Kim, Wooyul
|
|
dc.contributor.author |
Kim, Hyoung–il
|
|
dc.contributor.author |
Bahnemann, Detlef W.
|
|
dc.contributor.author |
Park, Hyunwoong
|
|
dc.contributor.author |
Choi, Wonyong
|
|
dc.date.accessioned |
2024-02-15T08:36:32Z |
|
dc.date.available |
2024-02-15T08:36:32Z |
|
dc.date.issued |
2020 |
|
dc.identifier.citation |
Jeon, T.H.; Monllor-Satoca, D.; Moon, G.-H.; Kim, W.; Kim, H.-I. et al.: Ag(I) ions working as a hole-transfer mediator in photoelectrocatalytic water oxidation on WO3 film. In: Nature Communications 11 (2020), 967. DOI: https://doi.org/10.1038/s41467-020-14775-2 |
|
dc.description.abstract |
Ag(I) is commonly employed as an electron scavenger to promote water oxidation. In addition to its straightforward role as an electron acceptor, Ag(I) can also capture holes to generate the high-valent silver species. Herein, we demonstrate photoelectrocatalytic (PEC) water oxidation and concurrent dioxygen evolution by the silver redox cycle where Ag(I) acts as a hole-transfer mediator. Ag(I) enhances the PEC performance of WO3 electrodes at 1.23 V vs. RHE with increasing O2 evolution, while forming Ag(II) complexes (AgIINO3+). Upon turning off both light and potential bias, the photocurrent immediately drops to zero, whereas O2 evolution continues over ~10 h with gradual bleaching of the colored complexes. This phenomenon is observed neither in the Ag(I)-free PEC reactions nor in the photocatalytic (i.e., bias-free) reactions with Ag(I). This study finds that the role of Ag(I) is not limited as an electron scavenger and calls for more thorough studies on the effect of Ag(I). |
eng |
dc.language.iso |
eng |
|
dc.publisher |
[London] : Nature Publishing Group UK |
|
dc.relation.ispartofseries |
Nature Communications 11 (2020) |
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dc.rights |
CC BY 4.0 Unported |
|
dc.rights.uri |
https://creativecommons.org/licenses/by/4.0 |
|
dc.subject |
nitrate |
eng |
dc.subject |
oxygen |
eng |
dc.subject |
silver |
eng |
dc.subject |
tungsten derivative |
eng |
dc.subject |
catalysis |
eng |
dc.subject.ddc |
500 | Naturwissenschaften
|
|
dc.title |
Ag(I) ions working as a hole-transfer mediator in photoelectrocatalytic water oxidation on WO3 film |
eng |
dc.type |
Article |
|
dc.type |
Text |
|
dc.relation.essn |
2041-1723 |
|
dc.relation.doi |
https://doi.org/10.1038/s41467-020-14775-2 |
|
dc.bibliographicCitation.volume |
11 |
|
dc.bibliographicCitation.firstPage |
967 |
|
dc.description.version |
publishedVersion |
|
tib.accessRights |
frei zug�nglich |
|