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Large-Scale Encapsulation of Magnetic Iron Oxide Nanoparticles via Syngas Photo-Initiated Chemical Vapor Deposition

Donya Farhanian, Gregory De Crescenzo and Jason Robert Tavares

Article (2018)

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Cite this document: Farhanian, D., De Crescenzo, G. & Tavares, J. R. (2018). Large-Scale Encapsulation of Magnetic Iron Oxide Nanoparticles via Syngas Photo-Initiated Chemical Vapor Deposition. Scientific Reports. doi:10.1038/s41598-018-30802-1
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Abstract

Photo-initiated chemical vapor deposition (PICVD) has been adapted for use in a jet-assisted fluidized bed configuration, allowing for the encapsulation of magnetic iron oxide nanoparticles on a larger scale than ever reported (5 g). This new methodology leads to a functional coating with a thickness of 1.4–10 nm, confirmed by HRTEM and TGA. XPS and TOF-SIMS characterization confirm that the coating is composed of both aliphatic and polymerized carbon chains, with incorporated organometallic bonds and oxygen-containing moieties. UV-Vis absorbance spectra show that the coating improved dispersion in non-polar solvents, such as n-dodecane. This process represents a first step towards the large-scale, solvent-free post-synthesis processing of nanoparticles to impart a functional coating.

Open Access document in PolyPublie
Subjects: 1800 Génie chimique > 1800 Génie chimique
Department: Département de génie chimique
Research Center: CREPEC - Centre de recherche sur les systèmes polymères et composites à haute performance
Funders: Fonds de Recherche du Québec en Nature et Technologies (FRQNT), CRSNG / NSERC, Hydro-Québec, Canadian Foundation for Innovation (CFI), Canada Research Chairs program (CRC), École Polytechnique de Montréal
Date Deposited: 23 Nov 2018 10:15
Last Modified: 25 Feb 2019 14:29
PolyPublie URL: https://publications.polymtl.ca/3681/
Document issued by the official publisher
Journal Title: Scientific Reports
Publisher: Nature
Official URL: https://doi.org/10.1038/s41598-018-30802-1

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