Journal article 389 views 52 downloads
Temperature dependence on the mass susceptibility and mass magnetization of superparamagnetic Mn–Zn–ferrite nanoparticles as contrast agents for magnetic imaging of oil and gas reservoirs / Lauren Morrow; Brendan Snow; Arfan Ali; Samuel J. Maguire-Boyle; Zeyad Almutairi; David K. Potter; Andrew Barron
Journal of Experimental Nanoscience, Volume: 13, Issue: 1, Pages: 107 - 118
Swansea University Author: Andrew, Barron
-
PDF | Version of Record
Download (726.61KB)
DOI (Published version): 10.1080/17458080.2018.1426894
Abstract
The mass susceptibility (χmass) and mass magnetization (Mmass) were determined for a series of ternary manganese and zinc ferrite nanoparticles (Mn–Zn ferrite NPs, MnxZn1−xFe2O4) with different Mn:Zn ratios (0.08 ≤ x ≤ 4.67), prepared by the thermal decomposition reaction of the appropriate metal ac...
| Published in: | Journal of Experimental Nanoscience |
|---|---|
| ISSN: | 1745-8080 1745-8099 |
| Published: |
2018
|
| Online Access: |
Check full text
|
| URI: | https://cronfa.swan.ac.uk/Record/cronfa38765 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Abstract: |
The mass susceptibility (χmass) and mass magnetization (Mmass) were determined for a series of ternary manganese and zinc ferrite nanoparticles (Mn–Zn ferrite NPs, MnxZn1−xFe2O4) with different Mn:Zn ratios (0.08 ≤ x ≤ 4.67), prepared by the thermal decomposition reaction of the appropriate metal acetylacetonate complexes, and for the binary homologs (MxFe3−xO4, where M = Mn or Zn). Alteration of the Mn:Zn ratio in Mn–Zn ferrite NPs does not significantly affect the particle size. At room temperature and low applied field strength the mass susceptibility increases sharply as the Mn:Zn ratio increases, but above a ratio of 0.4 further increase in the amount of manganese results in the mass susceptibility decreasing slightly, reaching a plateau above Mn:Zn ≈ 2. The compositional dependence of the mass magnetization shows less of a variation at room temperature and high applied fields. The temperature dependence of the mass magnetization of Mn–Zn ferrite NPs is significantly less for Mn-rich compositions making them more suitable for downhole imaging at higher temperatures (>100 °C). For non-shale reservoirs, replacement of nMag by Mn-rich Mn–Zn ferrites will allow for significant signal-to-noise enhancement of 6.5× over NP magnetite. |
|---|---|
| Keywords: |
Reservoir, nanoparticle, ferrite, susceptibility, magnetization |
| College: |
College of Engineering |
| Issue: |
1 |
| Start Page: |
107 |
| End Page: |
118 |