Abstract

Structural characteristics of nanocomposite series consisting of iron oxide nanoparticles (NPs) embedded in the regular pores of amorphous silica matrix (SBA-15) were investigated by means of small angle neutron scattering (SANS). By virtue of unique neutron properties, insight into the inner structure and matter organization of this kind of systems was facilitated for the first time. Based on rigorous experimental support, fundamental model describing the neutron scattering intensity distribution was proposed by assuming general composite structural features. Model application to SANS data confirmed the presence of iron oxide NPs in the body of examined matrices, providing additional information on their shape, concentration and size distribution. Scattering superposition principle employed in the model conception allows for tailoring its fundamental characteristics, and renders it a potent and versatile tool for a wide range of applications.

Details

Title
Size and distribution of the iron oxide nanoparticles in SBA-15 nanoporous silica via SANS study
Author
Zeleňáková, Adriana 1 ; Hrubovčák, Pavol 2 ; Kapusta, Ondrej 1 ; Kučerka, Norbert 3 ; Kuklin, Aleksander 4 ; Ivankov, Oleksandr 5 ; Zeleňák, Vladimír 6 

 P. J. Šafárik University, Department of Solid State Physics, Košice, Slovakia 
 P. J. Šafárik University, Department of Solid State Physics, Košice, Slovakia; Joint Institute for Nuclear Research, Frank Laboratory of Neutron Physics, Dubna, Russia 
 Joint Institute for Nuclear Research, Frank Laboratory of Neutron Physics, Dubna, Russia; Comenius University in Bratislava, Department of Physical Chemistry of Drugs, Bratislava, Slovakia 
 Joint Institute for Nuclear Research, Frank Laboratory of Neutron Physics, Dubna, Russia; Moscow Institute of Physics and Technology, Institutsky per. 9, Dolgoprudny, Moscow Region, Russia 
 Joint Institute for Nuclear Research, Frank Laboratory of Neutron Physics, Dubna, Russia 
 P. J. Šafárik University, Department of Inorganic Chemistry, Košice, Slovakia 
Pages
1-9
Publication year
2019
Publication date
Nov 2019
Publisher
Nature Publishing Group
e-ISSN
20452322
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2311222453
Copyright
© 2019. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.