Effect of surface change by vacuum drying on the sedimentation stability of iron nanoparticles in volatile organic solvents
Source abstract
Abstract
Sedimentation stability of iron nanoparticles (FeNPs) in low viscosity, volatile organic solvents such as ethanol and MEK is crucial for the high-quality production of FeNP-based electronics. Adding dispersants represents nowadays the common strategy to improve the sedimentation stability of FeNPs, but suffers from toxicity and high costs. Here, we present a simple vacuum drying process for enhancing the sedimentation stability of FeNPs in ethanol without using dispersants. In-situ light transmission and scattering detection showed that vacuum-dried FeNPs in ethanol and MEK sedimented much slower than those of non-treated FeNPs. The cause for the enhanced sedimentation stability was explained by Stoke's law and inter-particle attraction force change due to the reduced hydroxyl groups by the vacuum annealing. A systematic analysis of the FeNP surfaces before and after annealing provided a detailed picture of the advantages to carry out a simple vacuum annealing process to improve sedimentation stability.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Theoretical and Computational Physics · Characterization and Applications of Magnetic Nanoparticles · Surfactants and Colloidal Systems
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (31)
Show source-provided references
1. Enhanced orbital magnetism in Fe(50)Pt(50) nanoparticles10.1103/PhysRevLett.97.117201 ↗
2. Colloquium: Opportunities in nanomagnetism10.1103/RevModPhys.78.1 ↗
3. Magnetic properties of iron nanoparticle10.1063/1.3428415 ↗
4. Photo-fluorescent and magnetic properties of iron oxide nanoparticles for biomedical applications10.1039/C5NR01538C ↗
5. Magnetic properties of novel superparamagnetic iron oxide nanoclusters and their peculiarity under annealing treatment10.1016/j.apsusc.2014.09.181 ↗
6. Materials, Electro-infiltrated nickel/iron-oxide and permalloy/iron-oxide nanocomposites for integrated power inductors
7. Rowe · 2015 · 3 · 9789
8. Multilayered graphene-carbon nanotube-iron oxide three-dimensional heterostructure for flexible electromagnetic interference shielding film10.1016/j.carbon.2016.10.003 ↗
9. Fe nanoparticles and CNTs co-decorated porous carbon/graphene foam composite for excellent electromagnetic interference shielding performance10.1016/j.jallcom.2019.153108 ↗
10. New insights on removal mechanism of 17α-estradiol based on adsorption and Fenton-like oxidation by FeNPs/rGO10.1016/j.seppur.2021.120222 ↗
11. Influence of additives on the synthesis of carbonyl iron suspension on rheological and sedimentation properties of magnetorheological (MR) fluids10.1088/2053-1591/ab1e03 ↗
12. Influence of additives and their molecular structure on the static and dynamic wetting of oil on steel at room temperature10.1016/j.apsusc.2019.06.111 ↗
13. Core–shell-structured silica-coated magnetic carbonyl iron microbead and its magnetorheology with anti-acidic characteristics10.1007/s00396-011-2452-6 ↗
14. Cisplatin drug delivery using gold-coated iron oxide nanoparticles for enhanced tumour targeting with external magnetic fields10.1016/j.ica.2012.05.012 ↗
15. Effect of surface modification on magnetization of iron oxide nanoparticle colloids10.1021/la3022479 ↗
16. Calvo · 2008 · 53 · 628
17. An experimental study on the effect of fatty acid chain length on the magnetorheological fluid stabilization and rheological properties10.1016/j.colsurfa.2014.12.046 ↗
18. Rheological properties of magnetorheological suspensions stabilized with nanocelluloses10.1016/j.carbpol.2019.115776 ↗
19. Ren · 2018 · 214 · 446
20. Study of emulsion stabilization by graft copolymers using the optical analyzer Turbiscan10.1016/S0378-5173(02)00687-7 ↗
21. Optimization of oil-in-water emulsion stability: experimental design, multiple light scattering, and acoustic attenuation spectroscopy10.1080/01932690903224888 ↗
22. Heteroaggregation of CeO2 and TiO2 engineered nanoparticles in the aqueous phase: application of turbiscan stability index and fluorescence excitation-emission matrix (EEM) spectra10.1016/j.colsurfa.2017.08.014 ↗
23. Stability and rheological properties of water-in-oil (W/O) emulsions prepared with a soyasaponin-PGPR system10.1016/j.fufo.2021.100096 ↗
24. Settling equivalence of detrital minerals and grain-size dependence of sediment composition10.1016/j.epsl.2008.06.020 ↗
25. Ni particle surface descriptor to enhance roughness of Ni internal electrode in MLCCs10.1007/s43207-020-00101-5 ↗
26. Impact of oxidation morphology on reduced graphene oxides upon thermal annealing
27. Park · 2018 · 10 · 24055
28. Effects of solvent hydrogen bonding, viscosity, and polarity on the dispersion and alignment of nanofluids containing Fe2O3 nanoparticles10.1063/1.4936171 ↗
29. A model to estimate the size of nanoparticle agglomerates in gas−solid fluidized beds10.1007/s11051-013-2055-x ↗
30. The role of the hydrogen bond in dense nanoparticle-gas suspensions10.1039/c3cp43687j ↗
31. Model based on electrostatic repulsion and hydrogen bond forces to estimate the size of nanoparticle agglomerates in fluidization10.1021/acs.iecr.6b02792 ↗