scholarly journals The Terahertz Dynamics of an Aqueous Nanoparticle Suspension: An Inelastic X-ray Scattering Study

Nanomaterials ◽  
2020 ◽  
Vol 10 (5) ◽  
pp. 860
Author(s):  
Alessio De Francesco ◽  
Luisa Scaccia ◽  
Ferdinando Formisano ◽  
Eleonora Guarini ◽  
Ubaldo Bafile ◽  
...  
Keyword(s):  
Aqueous Suspension ◽  
Pure Water ◽  
National Laboratory ◽  
Argonne National Laboratory ◽  
Acoustic Mode ◽  
Complete Disappearance ◽  
Nanoparticle Suspension ◽  
X Ray ◽  
X Ray Scattering ◽  
Ray Scattering

We used the high-resolution Inelastic X-ray Scattering beamline of the Advanced Photon Source at Argonne National Laboratory to measure the terahertz spectrum of pure water and a dilute aqueous suspension of 15 nm diameter spherical Au nanoparticles (Au-NPs). We observe that, despite their sparse volume concentration of about 0.5%, the immersed NPs strongly influence the collective molecular dynamics of the hosting liquid. We investigate this effect through a Bayesian inference analysis of the spectral lineshape, which elucidates how terahertz transport properties of water change upon Au-NP immersion. In particular, we observe a nearly complete disappearance of the longitudinal acoustic mode and a mildly decreased ability to support shear wave propagation.

scholarly journals Development of combined microstructure and structure characterization facility forin situandoperandostudies at the Advanced Photon Source

2018 ◽  
Vol 51 (3) ◽  
pp. 867-882 ◽  
Author(s):  
Jan Ilavsky ◽  
Fan Zhang ◽  
Ross N. Andrews ◽  
Ivan Kuzmenko ◽  
Pete R. Jemian ◽  
...  
Keyword(s):  
Small Angle ◽  
National Laboratory ◽  
Argonne National Laboratory ◽  
Incident Beam ◽  
Evolutionary Development ◽  
X Ray ◽  
X Ray Scattering ◽  
Wide Range ◽  
Photon Source ◽  
Ray Scattering

Following many years of evolutionary development, first at the National Synchrotron Light Source, Brookhaven National Laboratory, and then at the Advanced Photon Source (APS), Argonne National Laboratory, the APS ultra-small-angle X-ray scattering (USAXS) facility has been transformed by several new developments. These comprise a conversion to higher-order crystal optics and higher X-ray energies as the standard operating mode, rapid fly scan measurements also as a standard operational mode, automated contiguous pinhole small-angle X-ray scattering (SAXS) measurements at intermediate scattering vectors, and associated rapid wide-angle X-ray scattering (WAXS) measurements for X-ray diffraction without disturbing the sample geometry. With each mode using the USAXS incident beam optics upstream of the sample, USAXS/SAXS/WAXS measurements can now be made within 5 min, allowingin situandoperandomeasurement capabilities with great flexibility under a wide range of sample conditions. These developments are described, together with examples of their application to investigate materials phenomena of technological importance. Developments of two novel USAXS applications, USAXS-based X-ray photon correlation spectroscopy and USAXS imaging, are also briefly reviewed.

Ultra-small-angle X-ray scattering at the Advanced Photon Source

2009 ◽  
Vol 42 (3) ◽  
pp. 469-479 ◽  
Author(s):  
Jan Ilavsky ◽  
Pete R. Jemian ◽  
Andrew J. Allen ◽  
Fan Zhang ◽  
Lyle E. Levine ◽  
...  
Keyword(s):  
Cross Sections ◽  
Small Angle ◽  
National Laboratory ◽  
Argonne National Laboratory ◽  
X Ray ◽  
X Ray Scattering ◽  
Operational Energy ◽  
Scattering Cross Sections ◽  
Photon Source ◽  
Ray Scattering

The design and operation of a versatile ultra-small-angle X-ray scattering (USAXS) instrument at the Advanced Photon Source (APS) at Argonne National Laboratory are presented. The instrument is optimized for the high brilliance and low emittance of an APS undulator source. It has angular and energy resolutions of the order of 10−4, accurate and repeatable X-ray energy tunability over its operational energy range from 8 to 18 keV, and a dynamic intensity range of 108to 109, depending on the configuration. It further offers quantitative primary calibration of X-ray scattering cross sections, a scattering vector range from 0.0001 to 1 Å−1, and stability and reliability over extended running periods. Its operational configurations include one-dimensional collimated (slit-smeared) USAXS, two-dimensional collimated USAXS and USAXS imaging. A robust data reduction and data analysis package, which was developed in parallel with the instrument, is available and supported at the APS.

Investigation of microstructural changes in impacted polyurea coatings using small angle X-ray scattering (SAXS)

2011 ◽  
Vol 26 (2) ◽  
pp. 149-154 ◽  
Author(s):  
Edward Balizer ◽  
Jeffry Fedderly ◽  
Gilbert Lee ◽  
Susan Bartyczak ◽  
Willis Mock
Keyword(s):  
Strain Hardening ◽  
Small Angle ◽  
High Speed ◽  
Soft Segment ◽  
National Laboratory ◽  
Argonne National Laboratory ◽  
Steel Cylinder ◽  
X Ray ◽  
X Ray Scattering ◽  
Ray Scattering

Three polyureas with decreasing soft segment molecular weights of 1000, 650, and a 250/1000 blend were molded onto circular steel plates and then impacted with a high speed (275 m/s) conical-shaped steel cylinder. The polyurea layer of the post mortem bilayers was characterized on a molecular level by small angle synchrotron X-ray scattering (SAXS) at the Advanced Photon Source at the Argonne National Laboratory. Analysis revealed that the hard domains of the polyureas with lower molecular weight soft segments reformed and oriented over a greater area of the coating, thus increasing the polymer strain hardening and resulting in visibly less out of plane bilayer deformation. This agrees with the hypothesis that polymer strain hardening is a mechanism that retards necking failure of the metal plate.

scholarly journals Nuclear resonant inelastic X-ray scattering at high pressure and low temperature

2015 ◽  
Vol 22 (3) ◽  
pp. 760-765 ◽  
Author(s):  
Wenli Bi ◽  
Jiyong Zhao ◽  
Jung-Fu Lin ◽  
Quanjie Jia ◽  
Michael Y. Hu ◽  
...  
Keyword(s):  
High Pressure ◽  
Low Temperature ◽  
Density Of States ◽  
National Laboratory ◽  
Argonne National Laboratory ◽  
Phonon Density ◽  
Phonon Density Of States ◽  
X Ray ◽  
X Ray Scattering ◽  
Ray Scattering

A new synchrotron radiation experimental capability of coupling nuclear resonant inelastic X-ray scattering with the cryogenically cooled high-pressure diamond anvil cell technique is presented. The new technique permits measurements of phonon density of states at low temperature and high pressure simultaneously, and can be applied to studies of phonon contribution to pressure- and temperature-induced magnetic, superconducting and metal–insulator transitions in resonant isotope-bearing materials. In this report, a pnictide sample, EuFe2As2, is used as an example to demonstrate this new capability at beamline 3-ID of the Advanced Photon Source, Argonne National Laboratory. A detailed description of the technical development is given. The Fe-specific phonon density of states and magnetism from the Fe sublattice in Eu57Fe2As2at high pressure and low temperature were derived by using this new capability.

Local Order in Aqueous NaCl Solutions and Pure Water:  X-ray Scattering and Molecular Dynamics Simulations Study

2006 ◽  
Vol 110 (46) ◽  
pp. 23515-23523 ◽  
Author(s):  
Salah Bouazizi ◽  
Salah Nasr ◽  
Nejmeddine Jaîdane ◽  
Marie-Claire Bellissent-Funel
Keyword(s):  
Molecular Dynamics ◽  
Molecular Dynamics Simulations ◽  
Pure Water ◽  
Local Order ◽  
X Ray ◽  
X Ray Scattering ◽  
Dynamics Simulations ◽  
Ray Scattering

scholarly journals Implementation and performance of SIBYLS: a dual endstation small-angle X-ray scattering and macromolecular crystallography beamline at the Advanced Light Source

2013 ◽  
Vol 46 (1) ◽  
pp. 1-13 ◽  
Author(s):  
Scott Classen ◽  
Greg L. Hura ◽  
James M. Holton ◽  
Robert P. Rambo ◽  
Ivan Rodic ◽  
...  
Keyword(s):  
Data Collection ◽  
Light Source ◽  
Small Angle ◽  
National Laboratory ◽  
Department Of Energy ◽  
Macromolecular Crystallography ◽  
X Ray ◽  
X Ray Scattering ◽  
Advanced Light Source ◽  
Ray Scattering

The SIBYLS beamline (12.3.1) of the Advanced Light Source at Lawrence Berkeley National Laboratory, supported by the US Department of Energy and the National Institutes of Health, is optimized for both small-angle X-ray scattering (SAXS) and macromolecular crystallography (MX), making it unique among the world's mostly SAXS or MX dedicated beamlines. Since SIBYLS was commissioned, assessments of the limitations and advantages of a combined SAXS and MX beamline have suggested new strategies for integration and optimal data collection methods and have led to additional hardware and software enhancements. Features described include a dual mode monochromator [containing both Si(111) crystals and Mo/B4C multilayer elements], rapid beamline optics conversion between SAXS and MX modes, active beam stabilization, sample-loading robotics, and mail-in and remote data collection. These features allow users to gain valuable insights from both dynamic solution scattering and high-resolution atomic diffraction experiments performed at a single synchrotron beamline. Key practical issues considered for data collection and analysis include radiation damage, structural ensembles, alternative conformers and flexibility. SIBYLS develops and applies efficient combined MX and SAXS methods that deliver high-impact results by providing robust cost-effective routes to connect structures to biology and by performing experiments that aid beamline designs for next generation light sources.

scholarly journals Ionic Solutions Probed by Resonant Inelastic X-ray Scattering

2015 ◽  
Vol 229 (10-12) ◽  
Author(s):  
Zhong Yin ◽  
Ivan Rajkovic ◽  
Sreevidya Thekku Veedu ◽  
Sascha Deinert ◽  
Dirk Raiser ◽  
...  
Keyword(s):  
Pure Water ◽  
Liquid Jet ◽  
Ionic Solutions ◽  
X Ray ◽  
Chemical Systems ◽  
Water Interaction ◽  
X Ray Scattering ◽  
Local Charge ◽  
X Ray Absorption ◽  
Ray Scattering

AbstractX-ray spectroscopy is a powerful tool to study the local charge distribution of chemical systems. Together with the liquid jet it becomes possible to probe chemical systems in their natural environment, the liquid phase. In this work, we present X-ray absorption (XA), X-ray emission (XE) and resonant inelastic X-ray scattering (RIXS) data of pure water and various salt solutions and show the possibilities these methods offer to elucidate the nature of ion-water interaction.

A small angle x‐ray scattering workstation for National Laboratory for Synchrotron Light

1992 ◽  
Vol 63 (1) ◽  
pp. 1065-1067 ◽  
Author(s):  
L. A. Bernardes ◽  
H. Tolentino ◽  
A. R. D. Rodrigues ◽  
A. Craievich ◽  
I. Torriani
Keyword(s):  
Small Angle ◽  
National Laboratory ◽  
X Ray ◽  
X Ray Scattering ◽  
Synchrotron Light ◽  
Ray Scattering

Characterization of TEMPO-oxidized cellulose nanofibers in aqueous suspension by small-angle X-ray scattering

2014 ◽  
Vol 47 (2) ◽  
pp. 788-798 ◽  
Author(s):  
Ying Su ◽  
Christian Burger ◽  
Benjamin S. Hsiao ◽  
Benjamin Chu
Keyword(s):  
Cross Section ◽  
Small Angle ◽  
Structural Information ◽  
Rectangular Cross Section ◽  
Aqueous Suspension ◽  
Cellulose Nanofibers ◽  
Weighted Average ◽  
X Ray ◽  
X Ray Scattering ◽  
Ray Scattering

Cellulose nanofibers, extracted from wood pulps using the (2,2,6,6-tetramethylpiperidine-1-yl)oxyl (TEMPO)-mediated oxidation method, are low-cost, sustainable and high-performance materials with potential usage in many applications. The structural information of these cellulose nanofibers in aqueous suspension was characterized by synchrotron small-angle X-ray scattering (SAXS). A simplified ribbon model having a near rectangular cross section was found to give the best fit to the SAXS results. The analytical expression of the ribbon model also led to a higher calculation efficiency compared with the more conventional parallelepiped model. The extracted structural information included the cross-section size and size distribution of the cellulose nanofibers. For example, for nanofibers prepared from the dried pulp of the maritime pine, the size-weighted averages of thickness and width were 3.2 and 12.7 nm, respectively, and the corresponding standard deviations were 2.2 and 5.5 nm, respectively. The scattering results of the size-weighted average of the nanofiber width are also consistent with those determined directly from transmission electron microscopy.

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