Spatially Localized Synthesis and Structural Characterization of Platinum Nanocrystals Obtained Using UV Light

Quinson, Jonathan; Kacenauskaite, Laura; Christiansen, Troels L.; Vosch, Tom; Arenz, Matthias; Jensen, Kirsten M. Ø. (2018). Spatially Localized Synthesis and Structural Characterization of Platinum Nanocrystals Obtained Using UV Light. ACS Omega, 3(8), pp. 10351-10356. American Chemical Society 10.1021/acsomega.8b01613

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Platinum nanocrystals with a fine control of the crystal domain size in the range 1.0−2.2 nm are produced by tuning the NaOH concentration during the UV-induced reduction of H2PtCl6 in surfactant-free alkaline ethylene glycol. The colloidal solutions obtained are characterized by transmission electron microscopy and pair distribution function analysis, allowing analysis of both atomic and nanoscale structures. The obtained nanoparticles exhibit a face-centered cubic crystal structure even for the smallest nanoparticles, and the cubic unit cell parameter is significantly reduced with decreasing crystallite size. It is further demonstrated how the “UV-approach” can be used to achieve spatial control of the nucleation and growth of the platinum nanocrystals, which is not possible by thermal reduction.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Departement of Chemistry and Biochemistry

UniBE Contributor:

Arenz, Matthias

Subjects:

500 Science > 570 Life sciences; biology
500 Science > 540 Chemistry

ISSN:

2470-1343

Publisher:

American Chemical Society

Language:

English

Submitter:

Matthias Arenz

Date Deposited:

19 Dec 2018 09:26

Last Modified:

23 Oct 2019 10:34

Publisher DOI:

10.1021/acsomega.8b01613

BORIS DOI:

10.7892/boris.122189

URI:

https://boris.unibe.ch/id/eprint/122189

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