Tunable synthesis of ultrathin AuAg nanowires and their catalytic applications

Metallic nanowires (NWs) are very interesting and important nanomaterials with unique properties and a number of potential applications. Herein we report a tunable synthesis of water soluble ultrathin AuAg NWs. By using TEM and UV-vis spectroscopy, we demonstrate that these NWs can be produced by a new two-step process, which involves the formation of NW templates during the aging period and the subsequent formation of thicker NWs by a solvent driven fusion and wetting process. Our control studies further show that silver concentration plays a key role in the formation of these nanowires. We also demonstrate that these nanowires can effectively catalyse the reduction of 4-nitrophenol to the corresponding 4-aminophenol. Interestingly, the larger diameter ultrathin nanowires (av. 8 nm) exhibit a greater catalytic performance than the thinner nanowires (av. 3 nm). We believe that these studies are important for further development of one dimensional metal based nanomaterials, which may find a range of potential research and technological applications.

Medienart:

E-Artikel

Erscheinungsjahr:

2019

Erschienen:

2019

Enthalten in:

Zur Gesamtaufnahme - volume:11

Enthalten in:

Nanoscale - 11(2019), 10 vom: 07. März, Seite 4328-4336

Sprache:

Englisch

Beteiligte Personen:

Kehoe, Daniel K [VerfasserIn]
McCarthy, Sarah A [VerfasserIn]
Gun'ko, Yurii K [VerfasserIn]

Links:

Volltext

Themen:

Journal Article

Anmerkungen:

Date Completed 07.03.2019

Date Revised 07.03.2019

published: Print

Citation Status PubMed-not-MEDLINE

doi:

10.1039/c8nr09236b

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM294181210