scholarly journals Flexible Sample Environments for the Investigation of Soft Matter at the European Spallation Source: Part I—The In Situ SANS/DLS Setup

2021 ◽  
Vol 11 (9) ◽  
pp. 4089
Author(s):  
Andreas Josef Schmid ◽  
Lars Wiehemeier ◽  
Sebastian Jaksch ◽  
Harald Schneider ◽  
Arno Hiess ◽  
...  
Keyword(s):  
Light Scattering ◽  
Dynamic Light Scattering ◽  
Present Article ◽  
Soft Matter ◽  
Plug And Play ◽  
Scattering Measurements ◽  
Spallation Source ◽  
And Control ◽  
Sample Environment

As part of the development of the new European Spallation Source (ESS) in Lund (Sweden), which will provide the most brilliant neutron beams worldwide, it is necessary to provide different sample environments with which the potential of the new source can be exploited as soon as possible from the start of operation. The overarching goal of the project is to reduce the downtimes of the instruments related to changing the sample environment by developing plug and play sample environments for different soft matter samples using the same general carrier platform and also providing full software integration and control by just using unified connectors. In the present article, as a part of this endeavor, the sample environment for in situ SANS and dynamic light scattering measurements is introduced.

Aqueous solubilization of hydrophobic supramolecular metal–organic nanocapsules

2014 ◽  
Vol 5 (6) ◽  
pp. 2554-2559 ◽  
Author(s):  
H. Kumari ◽  
S. R. Kline ◽  
J. L. Atwood
Keyword(s):  
Light Scattering ◽  
Dynamic Light Scattering ◽  
Neutron Scattering ◽  
Metal Organic

Micelles of surfactant solubilized metal-seamed pyrogallol[4]arene based organic nanocapsules are synthesized and characterized using in situ neutron scattering and dynamic light scattering techniques, which show trends in sizes as a function of alkyl tails of pyrogallols and surfactants.

scholarly journals Sulfonitric Treatment of Multiwalled Carbon Nanotubes and Their Dispersibility in Water

Materials ◽  
2018 ◽  
Vol 11 (12) ◽  
pp. 2442 ◽  
Author(s):  
Hui Liu ◽  
Jianfeng Wang ◽  
Jiachen Wang ◽  
Suping Cui
Keyword(s):  
Carbon Nanotubes ◽  
Light Scattering ◽  
Dynamic Light Scattering ◽  
Multiwalled Carbon Nanotubes ◽  
Photoelectron Spectroscopy ◽  
Oxidation Degree ◽  
Multiwalled Carbon ◽  
X Ray ◽  
Scattering Measurements ◽  
Ft Ir

In this study, Multiwalled carbon nanotubes (MWCNTs) were oxidized by a mixture of sulfuric acid and nitric acid (V:V = 3:1) at 70 °C for 1, 2, and 4 h, respectively. The oxidized MWCNTs were characterized by N2 adsorption, Fourier-transform infrared spectroscopy (FT-IR), X-ray photoelectron spectroscopy (XPS), thermal gravimetric analysis (TGA), and Raman spectroscopy to determine the oxidation degree. The dispersion of the MWCNTs was investigated by UV-vis-NIR, SEM, and dynamic light scattering measurements. Results show that sulfonitric treatment increased the surface area and total pore volume and reduced the average pore diameter of MWCNTs. The treatment promoted the formation of oxidized species on the surface MWCNTs, as identified by FT-IR, TGA, and X-ray photoelectron spectroscopy measurements, and more oxygen-containing functional groups were generated when treatment time was extended. Moreover, a general relationship between oxidation degree and dispersibility of MWCNTs in water was established. UV-vis-NIR and dynamic light scattering measurements and SEM images revealed that MWCNTs with higher oxidation degree showed better dispersibility in water.

Sign in / Sign up

Export Citation Format

Share Document