scholarly journals Aging of a Pt/Al2O3 exhaust gas catalyst monitored by quasi in situ X-ray micro computed tomography

RSC Advances ◽  
2015 ◽  
Vol 5 (9) ◽  
pp. 6893-6905 ◽  
Author(s):  
Georg Hofmann ◽  
Amélie Rochet ◽  
Elen Ogel ◽  
Maria Casapu ◽  
Stephan Ritter ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Exhaust Gas ◽  
Micro Computed Tomography ◽  
Aging Effects ◽  
Length Scales ◽  
Characterization Methods ◽  
X Ray ◽  
X Ray Absorption ◽  
Insight Into

Catalyst aging effects are analyzed using X-ray absorption micro-computed tomography in combination with conventional characterization methods on various length scales ranging from nm to μm to gain insight into deactivation mechanisms.

scholarly journals Damaging HMX/HTPB formulations: In-situ compression imaging using X-ray micro computed tomography

2015 ◽  
Author(s):  
Brian M. Patterson ◽  
Nikolaus Lynn Cordes ◽  
Bryce C. Tappan ◽  
Darla Graff Thompson ◽  
Virginia Warren Manner
Keyword(s):  
Computed Tomography ◽  
Micro Computed Tomography ◽  
X Ray

Quasi-Static and Dynamic Confined Compressive Behavior of Glass Beads by In-Situ X-Ray Micro-Computed Tomography

2021 ◽  
Author(s):  
Runyu Zhang ◽  
Huiluo Chen ◽  
Huiyang Luo ◽  
Sadeq Malakooti ◽  
Simon Oman ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Glass Beads ◽  
Compressive Behavior ◽  
Micro Computed Tomography ◽  
X Ray

Insight into growth of Au–Pt bimetallic nanoparticles: anin situXAS study

2017 ◽  
Vol 24 (4) ◽  
pp. 825-835 ◽  
Author(s):  
Chandrani Nayak ◽  
D. Bhattacharyya ◽  
K. Bhattacharyya ◽  
A. K. Tripathi ◽  
R. D. Bapat ◽  
...  
Keyword(s):  
Bimetallic Nanoparticles ◽  
Energy Dispersive ◽  
Core Shell ◽  
One Pot ◽  
X Ray ◽  
The Core ◽  
One Pot Synthesis ◽  
X Ray Absorption ◽  
Insight Into

Au–Pt bimetallic nanoparticles have been synthesized through a one-pot synthesis route from their respective chloride precursors using block copolymer as a stabilizer. Growth of the nanoparticles has been studied by simultaneousin situmeasurement of X-ray absorption spectroscopy (XAS) and UV–Vis spectroscopy at the energy-dispersive EXAFS beamline (BL-08) at Indus-2 SRS at RRCAT, Indore, India.In situXAS spectra, comprising both X-ray near-edge structure (XANES) and extended X-ray absorption fine-structure (EXAFS) parts, have been measured simultaneously at the Au and PtL3-edges. While the XANES spectra of the precursors provide real-time information on the reduction process, the EXAFS spectra reveal the structure of the clusters formed in the intermediate stages of growth. This insight into the formation process throws light on how the difference in the reduction potential of the two precursors could be used to obtain the core–shell-type configuration of a bimetallic alloy in a one-pot synthesis method. The core–shell-type structure of the nanoparticles has also been confirmed byex situenergy-dispersive spectroscopy line-scan and X-ray photoelectron spectroscopy measurements within situion etching on fully formed nanoparticles.

Structural Insight into Redox Dynamics of Copper Bound N-Truncated Amyloid-β Peptides from in Situ X-ray Absorption Spectroscopy

2018 ◽  
Vol 57 (18) ◽  
pp. 11422-11435 ◽  
Author(s):  
Victor A. Streltsov ◽  
Ruwini S. K. Ekanayake ◽  
Simon C. Drew ◽  
Christopher T. Chantler ◽  
Stephen P. Best
Keyword(s):  
Absorption Spectroscopy ◽  
Amyloid Β ◽  
X Ray ◽  
Structural Insight ◽  
X Ray Absorption ◽  
Insight Into ◽  
Redox Dynamics
Sign in / Sign up

Export Citation Format

Share Document