Work

Comparison of Long-Term Atmospheric Aging between Fe 3 O 4 and PEG-Protected Fe 3 O 4 Nanoparticles

Year: 2025

Type: article

Abstract: High Resolution Image Download MS PowerPoint Slide Magnetic nanoparticles have attracted significant attention due to their broad range of applications. A considerable amount of research has been conducted on the oxidation of Fe 3 O 4 nanoparticles; however, there remains a significant lack of systematic data on the long-term oxidation mechanisms of these nanoparticles under ambient atmospheric conditions. A comprehensive one-year study was conducted to investigate the magnetic properties of uncoated and PEG-coated Fe 3 O 4 nanoparticles. The systematic magnetization versus magnetic field measurements were performed over one year, with the samples stored under ambient atmospheric conditions and measured at regular intervals of a few weeks. To further characterize the synthesized nanoparticles, XRD, FTIR, and DLS analyses were conducted. The time-dependent oxidation process was modeled using an exponential function, and the fitting parameters were analyzed to provide physical insight into the oxidation behavior. The findings offer valuable perspectives on the potential applications of Fe 3 O 4 nanoparticles, particularly in magnetically driven technologies across various fields, while also providing a deeper understanding of the slow oxidation mechanisms of uncoated and PEG-coated Fe 3 O 4 nanoparticles.

Source: ACS Omega

DOI: 10.1021/acsomega.5c08246

Authors: Ali Erdoğan, Olcay Kizilaslan

Institution: Inonu University

Language: English

Topic: Magnetic Properties and Synthesis of Ferrites

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $1,935

Funder: Inönü Üniversitesi