Mechanistic insights into silver-gold nanoalloy formation by two-dimensional population balance modeling

Traore N, Schikarski T, Cardenas Lopez P, Körner A, Cardenas Lopez P, Hartmann L, Fritsch B, Walter J, Hutzler A, Pflug L, Peukert W (2024)

Publication Language: English

Publication Type: Journal article

Publication year: 2024

Journal

Chemical Engineering Journal Elsevier

Book Volume: 483

Article Number: 149429

DOI: 10.1016/j.cej.2024.149429

Abstract

The large-scale synthesis of nanoparticles (NPs) with defined properties requires detailed understanding of the underlying formation mechanisms and kinetics. The formation mechanisms of bimetallic NPs are still not sufficiently understood due to the complex reaction chemistry, which makes the control of the supersaturation as the thermodynamic driving force challenging. Particle size, chemical composition, and the distribution of the elements within the particles change dynamically during particle formation. In this work, we propose a mechanism for the formation of bimetallic silver-gold alloy NPs via a green liquid-phase co-reduction synthesis and develop a two-dimensional population balance model to quantitatively describe the evolution of particle size distribution, composition, and optical properties. We shed light on the complex multi-stage formation mechanism of a highly relevant bimetallic NP system, lay the foundation for tailoring the process conditions to achieve targeted optical particle properties and unravel predictive property-process relationships.

Authors with CRIS profile

Nabi Traore Lehrstuhl für Partikelsynthese (LFG) Tobias Schikarski Lehrstuhl für Partikelsynthese (LFG) Paola Cardenas Lopez Lehrstuhl für Partikelsynthese (LFG) Lukas Hartmann Lehrstuhl für Partikelsynthese (LFG) Johannes Walter Lehrstuhl für Partikelsynthese (LFG) Lukas Pflug FAU Competence Center Scientific Computing (FAU CSC) Wolfgang Peukert Lehrstuhl für Partikelsynthese (LFG)

Additional Organisation(s)

Interdisziplinäres Zentrum, Center for Nanoanalysis and Electron Microscopy (CENEM) Nanoanalysis and Electron Microscopy (CENEM)

Involved external institutions

Forschungszentrum Jülich / Research Centre Jülich (FZJ) DE Germany (DE)

How to cite

APA:

Traore, N., Schikarski, T., Cardenas Lopez, P., Körner, A., Cardenas Lopez, P., Hartmann, L.,... Peukert, W. (2024). Mechanistic insights into silver-gold nanoalloy formation by two-dimensional population balance modeling. Chemical Engineering Journal, 483. https://doi.org/10.1016/j.cej.2024.149429

MLA:

Traore, Nabi, et al. "Mechanistic insights into silver-gold nanoalloy formation by two-dimensional population balance modeling." Chemical Engineering Journal 483 (2024).

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