Ultra-Small-Angle X-ray Scattering Profile of Colloidal Silica Crystal of 4-fold Symmetry

1995 ◽  
Vol 117 (32) ◽  
pp. 8422-8424 ◽  
Author(s):  
Toshiki Konishi ◽  
Norio Ise
Keyword(s):  
Small Angle ◽  
Colloidal Silica ◽  
X Ray ◽  
X Ray Scattering ◽  
Ray Scattering

Construction of a Two-Dimensional Ultra-Small-Angle X-ray Scattering Apparatus

1997 ◽  
Vol 30 (5) ◽  
pp. 854-856 ◽  
Author(s):  
T. Konishi ◽  
E. Yamahara ◽  
T. Furuta ◽  
N. Ise
Keyword(s):  
Small Angle ◽  
Colloidal Silica ◽  
Two Dimensional ◽  
Detector Plane ◽  
Measured Intensity ◽  
One Dimensional ◽  
X Ray ◽  
X Ray Scattering ◽  
Oriented Samples ◽  
Ray Scattering

A two-dimensional ultra-small-angle X-ray scattering (USAXS) apparatus was constructed using a rotating-anode X-ray generator and a Bonse–Hart camera. In this camera, two sets of two channel-cut single crystals were used to collimate the X-ray beam in both the horizontal and the vertical planes. The measured intensity profile of the direct beam showed a high small-angle resolution in all directions on the detector plane. The full width at half-maximum was 17′′, indicating that the apparatus can be applied to structural analysis in the range up to 2 μm, even for directionally oriented samples. One- and two-dimensional USAXS profiles from colloidal silica powder agreed well with each other, showing that the desmearing procedure adopted in the previous one-dimensional USAXS experiments were justified.

Characterization of Colloidal Silica Particles by Ultra-Small-Angle X-ray Scattering

Langmuir ◽  
1996 ◽  
Vol 12 (10) ◽  
pp. 2608-2610 ◽  
Author(s):  
Toshiki Konishi ◽  
Eiji Yamahara ◽  
Norio Ise
Keyword(s):  
Small Angle ◽  
Colloidal Silica ◽  
Silica Particles ◽  
X Ray ◽  
X Ray Scattering ◽  
Ray Scattering

scholarly journals Small-Angle X-Ray Scattering Study on Sol–Gel Transition of Mixtures of Colloidal Silica and Organic Polymer

1991 ◽  
Vol 64 (4) ◽  
pp. 1283-1288 ◽  
Author(s):  
Hideki Matsuoka ◽  
Sheng-rong Chen ◽  
Hiroshi Ishii ◽  
Norio Ise ◽  
Kazuki Nakanishi ◽  
...  
Keyword(s):  
Small Angle ◽  
Colloidal Silica ◽  
Sol Gel ◽  
Organic Polymer ◽  
X Ray ◽  
X Ray Scattering ◽  
Scattering Study ◽  
Sol Gel Transition ◽  
Gel Transition ◽  
Ray Scattering

A Revised O2 Reduction Model in Li-O2 Batteries as Revealed by in Situ Small Angle X-Ray Scattering

2019 ◽  
Author(s):  
Christian Prehal ◽  
Aleksej Samojlov ◽  
Manfred Nachtnebel ◽  
Manfred Kriechbaum ◽  
Heinz Amenitsch ◽  
...  
Keyword(s):  
Small Angle ◽  
Wide Angle ◽  
Reduction Mechanism ◽  
Reduction Model ◽  
X Ray ◽  
X Ray Scattering ◽  
O2 Reduction ◽  
Ray Scattering

<b>Here we use in situ small and wide angle X-ray scattering to elucidate unexpected mechanistic insights of the O2 reduction mechanism in Li-O2 batteries.<br></b>

In situ Time-Resolved Small-Angle X-ray Scattering Reveals the Formation Kinetics of Polyelectrolyte Complex Micelles

2019 ◽  
Author(s):  
Hao Wu ◽  
Jeffrey Ting ◽  
Siqi Meng ◽  
Matthew Tirrell
Keyword(s):  
Small Angle ◽  
Self Assembly ◽  
Electrostatic Interactions ◽  
Polyelectrolyte Complex ◽  
Time Resolved ◽  
X Ray ◽  
X Ray Scattering ◽  
Kinetics Of ◽  
Ray Scattering

We have directly observed the <i>in situ</i> self-assembly kinetics of polyelectrolyte complex (PEC) micelles by synchrotron time-resolved small-angle X-ray scattering, equipped with a stopped-flow device that provides millisecond temporal resolution. This work has elucidated one general kinetic pathway for the process of PEC micelle formation, which provides useful physical insights for increasing our fundamental understanding of complexation and self-assembly dynamics driven by electrostatic interactions that occur on ultrafast timescales.

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