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Description
| - The combustion reaction product between iron nitrate and glucose is a black powder containing nanocrystalline gamma-Fe2O3 impurified with residual carbon. After the H2O2 treatment, the carbon residue is removed, so that the carbon content decreases from 32.7% to 0.4%, and the color of the sample changes from black to reddish brown. Simultaneously the BET surface area of gamma-Fe2O3 increases dramatically from 72.6 m(2) g(-1) to 149.0 m(2) g(-1). The resulted gamma-Fe2O3 particles have a round shape and an average size of 12 nm. The average crystallite size of gamma-Fe2O3 calculated from XRD patterns was 5 nm. The resulted gamma-Fe2O3 nanoparticles exhibit a superparamagnetic behavior and a saturation magnetization of 41.5 emu g(-1). In addition to the removal of residual carbon, the H2O2 treatment also ensures the sterilization of gamma-Fe2O3 particles, which is a key requirement in the field of biomedical applications. gamma-Fe2O3 nanoparticles coated with a double layer of oleic acid were dispersed in saline solution, leading to a stable colloidal suspension. DLS measurements indicated a unimodal distribution of gamma-Fe2O3 nanoparticles and a hydrodynamic diameter of 80 nm.
- The combustion reaction product between iron nitrate and glucose is a black powder containing nanocrystalline gamma-Fe2O3 impurified with residual carbon. After the H2O2 treatment, the carbon residue is removed, so that the carbon content decreases from 32.7% to 0.4%, and the color of the sample changes from black to reddish brown. Simultaneously the BET surface area of gamma-Fe2O3 increases dramatically from 72.6 m(2) g(-1) to 149.0 m(2) g(-1). The resulted gamma-Fe2O3 particles have a round shape and an average size of 12 nm. The average crystallite size of gamma-Fe2O3 calculated from XRD patterns was 5 nm. The resulted gamma-Fe2O3 nanoparticles exhibit a superparamagnetic behavior and a saturation magnetization of 41.5 emu g(-1). In addition to the removal of residual carbon, the H2O2 treatment also ensures the sterilization of gamma-Fe2O3 particles, which is a key requirement in the field of biomedical applications. gamma-Fe2O3 nanoparticles coated with a double layer of oleic acid were dispersed in saline solution, leading to a stable colloidal suspension. DLS measurements indicated a unimodal distribution of gamma-Fe2O3 nanoparticles and a hydrodynamic diameter of 80 nm. (en)
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Title
| - gamma-Fe2O3 nanoparticles prepared by combustion synthesis, followed by chemical oxidation of residual carbon with H2O2
- gamma-Fe2O3 nanoparticles prepared by combustion synthesis, followed by chemical oxidation of residual carbon with H2O2 (en)
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skos:prefLabel
| - gamma-Fe2O3 nanoparticles prepared by combustion synthesis, followed by chemical oxidation of residual carbon with H2O2
- gamma-Fe2O3 nanoparticles prepared by combustion synthesis, followed by chemical oxidation of residual carbon with H2O2 (en)
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skos:notation
| - RIV/00216208:11310/14:10287094!RIV15-MSM-11310___
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http://linked.open...avai/riv/aktivita
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http://linked.open...avai/riv/aktivity
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http://linked.open...iv/cisloPeriodika
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http://linked.open...vai/riv/dodaniDat
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http://linked.open...aciTvurceVysledku
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http://linked.open.../riv/druhVysledku
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http://linked.open...iv/duvernostUdaju
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http://linked.open...titaPredkladatele
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http://linked.open...dnocenehoVysledku
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http://linked.open...ai/riv/idVysledku
| - RIV/00216208:11310/14:10287094
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http://linked.open...riv/jazykVysledku
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http://linked.open.../riv/klicovaSlova
| - oxidation; magnetic properties; chemical synthesis; magnetic materials (en)
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http://linked.open.../riv/klicoveSlovo
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http://linked.open...odStatuVydavatele
| - CH - Švýcarská konfederace
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http://linked.open...ontrolniKodProRIV
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http://linked.open...i/riv/nazevZdroje
| - Materials Chemistry and Physics
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http://linked.open...in/vavai/riv/obor
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http://linked.open...ichTvurcuVysledku
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http://linked.open...cetTvurcuVysledku
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http://linked.open...UplatneniVysledku
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http://linked.open...v/svazekPeriodika
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http://linked.open...iv/tvurceVysledku
| - Nižňanský, Daniel
- Ianos, Robert
- Pacurariu, Cornelia
- Taculescu, Elena-Alina (Moaca)
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http://linked.open...ain/vavai/riv/wos
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issn
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number of pages
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http://bibframe.org/vocab/doi
| - 10.1016/j.matchemphys.2014.08.038
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http://localhost/t...ganizacniJednotka
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