dc.identifier.uri |
http://dx.doi.org/10.15488/15559 |
|
dc.identifier.uri |
https://www.repo.uni-hannover.de/handle/123456789/15680 |
|
dc.contributor.author |
Zámbó, Dániel
|
|
dc.contributor.author |
Rusch, Pascal
|
|
dc.contributor.author |
Lübkemann, Franziska
|
|
dc.contributor.author |
Bigall, Nadja C.
|
|
dc.date.accessioned |
2023-11-29T05:22:32Z |
|
dc.date.available |
2023-11-29T05:22:32Z |
|
dc.date.issued |
2021 |
|
dc.identifier.citation |
Zámbó, D.; Rusch, P.; Lübkemann, F.; Bigall, N.C.: Noble-Metal Nanorod Cryoaerogels with Electrocatalytically Active Surface Sites. In: ACS Applied Materials & Interfaces 13 (2021), Nr. 48, S. 57774-57785. DOI: https://doi.org/10.1021/acsami.1c16424 |
|
dc.description.abstract |
Noble-metal-based electrocatalysts usually contain small nanoparticle building blocks to ensure a high specific surface area as the scene for the surface processes. Here, we show that relatively large noble-metal nanorods are also promising candidates to build up functional macrostructures with prominent electrocatalytic activity. After optimizing and upscaling the syntheses of gold nanorods and gold bipyramid-templated silver nanorods, cryoaerogels are fabricated on a conductive substrate via flash freezing and subsequent freeze drying. The versatile cryoaerogelation technique allows the formation of macrostructures with dendritic, open-pore structure facilitating the increase of the accessible nanorod surfaces. It is demonstrated via electrochemical oxidation and stripping test experiments that noble-metal surface sites are electrochemically active in redox reactions. Furthermore, gold nanorod cryoaerogels offer a platform for redox sensing, ethanol oxidation reaction, as well as glucose sensing. Compared to their simply drop-cast and dried counterparts, the noble-metal nanorod cryoaerogels offer enhanced activity due to the open porosity of the fabricated nanostructure while maintaining structural stability. |
eng |
dc.language.iso |
eng |
|
dc.publisher |
Washington, DC : Soc. |
|
dc.relation.ispartofseries |
ACS Applied Materials & Interfaces 13 (2021), Nr. 48 |
|
dc.rights |
CC BY-NC-ND 4.0 Unported |
|
dc.rights.uri |
https://creativecommons.org/licenses/by-nc-nd/4.0/ |
|
dc.subject |
assembly |
eng |
dc.subject |
cryoaerogel coatings |
eng |
dc.subject |
electrocatalysis |
eng |
dc.subject |
gold nanorods |
eng |
dc.subject |
silver nanorods |
eng |
dc.subject.ddc |
540 | Chemie
|
|
dc.subject.ddc |
600 | Technik
|
|
dc.title |
Noble-Metal Nanorod Cryoaerogels with Electrocatalytically Active Surface Sites |
eng |
dc.type |
Article |
|
dc.type |
Text |
|
dc.relation.essn |
1944-8252 |
|
dc.relation.issn |
1944-8244 |
|
dc.relation.doi |
https://doi.org/10.1021/acsami.1c16424 |
|
dc.bibliographicCitation.issue |
48 |
|
dc.bibliographicCitation.volume |
13 |
|
dc.bibliographicCitation.firstPage |
57774 |
|
dc.bibliographicCitation.lastPage |
57785 |
|
dc.description.version |
publishedVersion |
|
tib.accessRights |
frei zug�nglich |
|