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Quinson J, Aalling-Frederiksen O, Dacayan WL, Bjerregaard JD, Jensen KD, Jørgensen MRV, Kantor I, Sørensen DR, Theil Kuhn L, Johnson MS, Escudero-Escribano M, Simonsen SB, Jensen KMØ. Surfactant-Free Colloidal Syntheses of Gold-Based Nanomaterials in Alkaline Water and Mono-alcohol Mixtures. CHEMISTRY OF MATERIALS : A PUBLICATION OF THE AMERICAN CHEMICAL SOCIETY 2023; 35:2173-2190. [PMID: 36936178 PMCID: PMC10018736 DOI: 10.1021/acs.chemmater.3c00090] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Revised: 02/10/2023] [Indexed: 06/18/2023]
Abstract
Gold nanoparticles (Au NPs) and gold-based nanomaterials combine unique properties relevant for medicine, imaging, optics, sensing, catalysis, and energy conversion. While the Turkevich-Frens and Brust-Schiffrin methods remain the state-of-the-art colloidal syntheses of Au NPs, there is a need for more sustainable and tractable synthetic strategies leading to new model systems. In particular, stabilizers are almost systematically used in colloidal syntheses, but they can be detrimental for fundamental and applied studies. Here, a surfactant-free synthesis of size-controlled colloidal Au NPs stable for months is achieved by the simple reduction of HAuCl4 at room temperature in alkaline solutions of low-viscosity mono-alcohols such as ethanol or methanol and water, without the need for any other additives. Palladium (Pd) and bimetallic Au x Pd y NPs, nanocomposites and multimetallic samples, are also obtained and are readily active (electro)catalysts. The multiple benefits over the state-of-the-art syntheses that this simple synthesis bears for fundamental and applied research are highlighted.
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Affiliation(s)
- Jonathan Quinson
- Department
of Chemistry, Copenhagen University, Universitetsparken 5, DK-2100 Copenhagen Ø, Denmark
- Biochemical
and Chemical Engineering Department, Aarhus
University, Åbogade 40, DK-8200 Aarhus, Denmark
| | | | - Waynah L. Dacayan
- Department
of Energy Conversion and Storage, Technical
University of Denmark, Fysikvej Building 310, DK-2800 Kgs. Lyngby, Denmark
| | - Joachim D. Bjerregaard
- Department
of Chemistry, Copenhagen University, Universitetsparken 5, DK-2100 Copenhagen Ø, Denmark
| | - Kim D. Jensen
- Department
of Chemistry, Copenhagen University, Universitetsparken 5, DK-2100 Copenhagen Ø, Denmark
| | - Mads R. V. Jørgensen
- Department
of Chemistry and iNANO, Aarhus University, Langelandsgade 140, DK-8000 Aarhus C, Denmark
- MAX
IV Laboratory, Lund University, Fotongatan 2, SE-224 84 Lund, Sweden
| | - Innokenty Kantor
- MAX
IV Laboratory, Lund University, Fotongatan 2, SE-224 84 Lund, Sweden
- Department
of Physics, The Technical University of
Denmark, Fysikvej Building
311, DK-2800 Kgs.
Lyngby, Denmark
| | - Daniel R. Sørensen
- Department
of Chemistry and iNANO, Aarhus University, Langelandsgade 140, DK-8000 Aarhus C, Denmark
- MAX
IV Laboratory, Lund University, Fotongatan 2, SE-224 84 Lund, Sweden
| | - Luise Theil Kuhn
- Department
of Energy Conversion and Storage, Technical
University of Denmark, Fysikvej Building 310, DK-2800 Kgs. Lyngby, Denmark
| | - Matthew S. Johnson
- Department
of Chemistry, Copenhagen University, Universitetsparken 5, DK-2100 Copenhagen Ø, Denmark
| | - María Escudero-Escribano
- Department
of Chemistry, Copenhagen University, Universitetsparken 5, DK-2100 Copenhagen Ø, Denmark
- Catalan
Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, UAB Campus, Bellaterra, 08193 Barcelona, Spain
- ICREA, Passeig de Lluís Companys,
23, 08010 Barcelona, Spain
| | - Søren B. Simonsen
- Department
of Energy Conversion and Storage, Technical
University of Denmark, Fysikvej Building 310, DK-2800 Kgs. Lyngby, Denmark
| | - Kirsten M. Ø. Jensen
- Department
of Chemistry, Copenhagen University, Universitetsparken 5, DK-2100 Copenhagen Ø, Denmark
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