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Adsorption of Precursors on Substrates in the Presence of scCO2 for the Synthesis of Supported Metallic Nanoparticles: Experiments and Modeling

Crone, Marlene 1; Türk, Michael ORCID iD icon 2
1 Karlsruher Institut für Technologie (KIT)
2 Institut für Technische Thermodynamik und Kältetechnik (TTK), Karlsruher Institut für Technologie (KIT)

Abstract (englisch):

Supercritical fluid reactive deposition is a promising technique for the synthesis of supported mono- or bimetallic nanoparticles. This process involves precursor dissolution in the supercritical fluid, adsorption of the precursor from the supercritical fluid mixture on the surface of the substrate and conversion of the precursor to its metallic form. Experimental results show, that the adsorption behavior of the precursor is the crucial process step that controls metal loading and the particle size. In this review, an overview on experimental and modeling work is given and experimental data were correlated with different adsorption isotherm models e.g. the Henry, Freundlich, Langmuir and Toth equation. Finally, strategies for overcoming current knowledge gaps and suggestions for future research are provided.


Verlagsausgabe §
DOI: 10.5445/IR/1000157685
Veröffentlicht am 11.04.2023
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Technische Thermodynamik und Kältetechnik (TTK)
Publikationstyp Zeitschriftenaufsatz
Publikationsdatum 03.04.2023
Sprache Englisch
Identifikator ISSN: 2311-5521
KITopen-ID: 1000157685
Erschienen in Fluids
Verlag MDPI
Band 8
Heft 4
Seiten 121
Bemerkung zur Veröffentlichung This article belongs to the Special Issue Focus on Supercritical Fluids: Control and Extraction.
Vorab online veröffentlicht am 02.04.2023
Schlagwörter supercritical adsorption; precursor; substrate; solubility; scCO2; adsorption isotherm models
Nachgewiesen in Dimensions
Web of Science
Scopus
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