Wang, Baiyu; Mathiesen, Jette K; Kirsch, Andrea; Schlegel, Nicolas; Anker, Andy S; Johansen, Frederik L; Kjær, Emil T S; Aalling-Frederiksen, Olivia; Nielsen, Tobias M; Thomsen, Maria S; Jakobsen, Rasmus K; Arenz, Matthias; Jensen, Kirsten M Ø (2023). Formation of intermetallic PdIn nanoparticles: influence of surfactants on nanoparticle atomic structure. Nanoscale advances, 5(24), pp. 6913-6924. Royal Society of Chemistry 10.1039/d3na00582h
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Bimetallic nanoparticles have been extensively studied as electrocatalysts due to their superior catalytic activity and selectivity compared to their monometallic counterparts. The properties of bimetallic materials depend on the ordering of the metals in the structure, and to tailor-make materials for specific applications, it is important to be able to control the atomic structure of the materials during synthesis. Here, we study the formation of bimetallic palladium indium nanoparticles to understand how the synthesis parameters and additives used influence the atomic structure of the obtained product. Specifically, we investigate a colloidal synthesis, where oleylamine was used as the main solvent while the effect of two surfactants, oleic acid (OA) and trioctylphosphine (TOP) was studied. We found that without TOP included in the synthesis, a Pd-rich intermetallic phase with the Pd3In structure initially formed, which transformed into large NPs of the CsCl-structured PdIn phase. When TOP was included, the syntheses yielded both In2O3 and Pd3In. In situ X-ray total scattering with Pair Distribution Function analysis was used to study the formation process of PdIn bimetallic NPs. Our results highlight how seemingly subtle changes to material synthesis methods can have a large influence on the product atomic structure.
Item Type: |
Journal Article (Original Article) |
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Division/Institute: |
08 Faculty of Science > Department of Chemistry, Biochemistry and Pharmaceutical Sciences (DCBP) |
UniBE Contributor: |
Schlegel, Nicolas, Arenz, Matthias |
Subjects: |
500 Science > 570 Life sciences; biology 500 Science > 540 Chemistry |
ISSN: |
2516-0230 |
Publisher: |
Royal Society of Chemistry |
Language: |
English |
Submitter: |
Pubmed Import |
Date Deposited: |
12 Dec 2023 13:40 |
Last Modified: |
12 Dec 2023 15:00 |
Publisher DOI: |
10.1039/d3na00582h |
PubMed ID: |
38059038 |
BORIS DOI: |
10.48350/189972 |
URI: |
https://boris.unibe.ch/id/eprint/189972 |
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