USE OF SANS AND SAXS IN STUDY OF NANOPARTICLES

2005 ◽  
Vol 04 (05n06) ◽  
pp. 987-994 ◽  
Author(s):  
P. S. GOYAL ◽  
V. K. ASWAL
Keyword(s):  
Small Angle ◽  
Shell Structure ◽  
Small Angle Neutron Scattering ◽  
Core Shell ◽  
X Rays ◽  
X Ray ◽  
The Core ◽  
X Ray Scattering ◽  
Structure Of Nanoparticles ◽  
Core Shell Structure

Small Angle Neutron Scattering (SANS) and Small Angle X-ray Scattering (SAXS), anong other available techniques, are the nost sought after techniques for studying the sizes and shapes of nanoparticles. The contrast between particle and its surrounding is different for X-rays and neutrons. Thus a combined SANS and SAXS study, at times, provides information about the core and the shell structure of nanoparticles. This paper gives an introduction to the techniques of SANS and SAXS and shows results of a study of core-shell structure for a micelle (nanaoparticle of organic material).

scholarly journals Crystallization of BaF2 from droplets of phase separated glass – evidence of a core–shell structure by ASAXS

CrystEngComm ◽  
2020 ◽  
Vol 22 (30) ◽  
pp. 5031-5039
Author(s):  
Armin Hoell ◽  
Vikram Singh Raghuwanshi ◽  
Christian Bocker ◽  
Andreas Herrmann ◽  
Christian Rüssel ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Small Angle ◽  
Shell Structure ◽  
Core Shell ◽  
X Ray Diffraction ◽  
X Ray ◽  
X Ray Scattering ◽  
Transmission Electron ◽  
Core Shell Structure

Glasses with the mol% compositions 1.88 Na2O·15.04 K2O·7.52 Al2O3·69.56 SiO2·6.00 BaF2 and 1.88 Na2O·15.03 K2O·7.52 Al2O3·69.52 SiO2·6.00 BaF2·0.05 SmF3 were studied using X-ray diffraction, transmission electron microscopy, and anomalous small-angle X-ray scattering.

Ru-core/Cu-shell bimetallic nanoparticles with controlled size formed in one-pot synthesis

Nanoscale ◽  
2014 ◽  
Vol 6 (24) ◽  
pp. 14856-14862 ◽  
Author(s):  
I. Helgadottir ◽  
G. Freychet ◽  
P. Arquillière ◽  
M. Maret ◽  
P. Gergaud ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Small Angle ◽  
Bimetallic Nanoparticles ◽  
Organometallic Compounds ◽  
Core Shell ◽  
One Pot ◽  
X Ray ◽  
The Core ◽  
X Ray Scattering ◽  
Core Shell Structure

Anomalous Small-Angle X-ray Scattering (ASAXS) experiments attest the core-shell structure of bimetallic nanoparticles Ru and Cu, synthesized by simultaneous decomposition of two organometallic compounds in an ionic liquid.

Influence of Nanoparticle Size on Strain at the Core-Shell Interface

2015 ◽  
Vol 662 ◽  
pp. 217-220 ◽  
Author(s):  
Ondrej Milkovič ◽  
Jana Michaliková ◽  
Jozef Bednarčík ◽  
Štefan Michalik
Keyword(s):  
Solid State ◽  
High Energy ◽  
Core Shell ◽  
X Ray Diffraction ◽  
X Ray ◽  
The Core ◽  
Structure Of Nanoparticles ◽  
Fe Nanoparticles ◽  
Hall Method ◽  
Core Shell Structure

This work deals with the strain at the core-shell interface of Fe nanoparticles. Series of Fe nanoparticles with various mean diameters were prepared by precipitation in solid state in binary Cu-Fe alloy. Further, nanoparticles were isolated by dissolution of Cu matrix. High-energy X-ray diffraction (XRD) was used to probe structure of nanoparticles. XRD measurements suggest presence of the core-shell structure, where core and shell of the nanoparticles are formed of α-Fe and CuFe2O4 phase, respectively. Strains in core and shell were estimated as a function of nanoparticles size by Williamson-Hall method.

Isotope effects in solution small-angle X-ray scattering

1999 ◽  
Vol 32 (1) ◽  
pp. 113-114 ◽  
Author(s):  
Stephen J. Henderson
Keyword(s):  
Neutron Scattering ◽  
Small Angle ◽  
Small Angle Neutron Scattering ◽  
Isotope Effects ◽  
X Rays ◽  
Light Water ◽  
X Ray ◽  
X Ray Scattering ◽  
The Difference ◽  
Ray Scattering

While the difference between using heavy and light water as solvents for small-angle neutron scattering experiments is well known, the lesser difference for the case of small-angle X-ray scattering with these same isotopes of water has, as yet, not been reported. This difference for the case of X-rays is discussed and quantified for several familiar materials: polystyrene latexes, proteins and lipids.

Controlled Synthesis of Core-Shell Structure SiO2 /NaGdF4:Eu3+ Magnetic and Optical Bifunctional Composite

2014 ◽  
Vol 936 ◽  
pp. 359-363
Author(s):  
Yan Li Wu ◽  
Min Liao ◽  
Hai Xin Ding ◽  
Ru Chun Yang ◽  
Dan Dan Xiong ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Shell Structure ◽  
Photo Luminescence ◽  
Core Shell ◽  
Controlled Synthesis ◽  
X Ray Diffraction ◽  
X Ray ◽  
The Core ◽  
Core Shell Structure ◽  
Shell Composite

The SiO2/NaGdF4:Eu3+ core/shell composite was prepared by a template-mediated method, making monodispersed SiO2 as core and NaGdF4:Eu colloids as shell, the morphology and the core-shell structure of the resulting particles were analyzed by SEM,X-ray diffraction, and the photo-luminescence and magnetic properties of the microspheres were investigated too. The results shows the composite have great potential to be used as homogeneous magnetic/optical bifunctional material.

scholarly journals Unraveling the Core–Shell Structure of Ligand-Capped Sn/SnOxNanoparticles by Surface-Enhanced Nuclear Magnetic Resonance, Mössbauer, and X-ray Absorption Spectroscopies

ACS Nano ◽  
2014 ◽  
Vol 8 (3) ◽  
pp. 2639-2648 ◽  
Author(s):  
Loredana Protesescu ◽  
Aaron J. Rossini ◽  
Dominik Kriegner ◽  
Maxence Valla ◽  
Antoine de Kergommeaux ◽  
...  
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Shell Structure ◽  
Core Shell ◽  
X Ray ◽  
The Core ◽  
Surface Enhanced ◽  
Core Shell Structure ◽  
X Ray Absorption ◽  
Nuclear Magnetic

Core−Shell Structure of Degradable, Thermosensitive Polymeric Micelles Studied by Small-Angle Neutron Scattering

2008 ◽  
Vol 112 (3) ◽  
pp. 784-792 ◽  
Author(s):  
Aissa Ramzi ◽  
Rijcken ◽  
Veldhuis ◽  
Dietmar Schwahn ◽  
Wim E. Hennink ◽  
...  
Keyword(s):  
Neutron Scattering ◽  
Small Angle ◽  
Shell Structure ◽  
Small Angle Neutron Scattering ◽  
Polymeric Micelles ◽  
Core Shell ◽  
Core Shell Structure
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