Structural Evolution of Amorphous Precursors toward Crystalline Zeolites Visualized by an in Situ X-ray Pair Distribution Function Approach

2019 ◽  
Vol 123 (46) ◽  
pp. 28419-28426 ◽  
Author(s):  
Hiroki Yamada ◽  
Satoshi Tominaka ◽  
Koji Ohara ◽  
Zhendong Liu ◽  
Tatsuya Okubo ◽  
...  
Keyword(s):  
Distribution Function ◽  
Pair Distribution Function ◽  
Structural Evolution ◽  
Function Approach ◽  
X Ray

scholarly journals Drying-induced atomic structural rearrangements in sodium-based calcium-alumino-silicate-hydrate gel and the mitigating effects of ZrO2 nanoparticles

2018 ◽  
Vol 20 (13) ◽  
pp. 8593-8606 ◽  
Author(s):  
Kengran Yang ◽  
V. Ongun Özçelik ◽  
Nishant Garg ◽  
Kai Gong ◽  
Claire E. White
Keyword(s):  
Distribution Function ◽  
Atomic Structure ◽  
Pair Distribution Function ◽  
Function Analysis ◽  
Zro2 Nanoparticles ◽  
Structural Rearrangements ◽  
X Ray ◽  
Alumino Silicate ◽  
Activated Slag

Drying-induced nanoscopic alterations to the local atomic structure of silicate-activated slag and the mitigated effects of nano-ZrO2 are elucidated using in situ X-ray pair distribution function analysis.

scholarly journals Exploring the origins of crystallisation kinetics in hierarchical materials using in situ X-ray diffraction and pair distribution function analysis

2020 ◽  
Vol 22 (34) ◽  
pp. 18860-18867 ◽  
Author(s):  
Matthew E. Potter ◽  
Mark E. Light ◽  
Daniel J. M. Irving ◽  
Alice E. Oakley ◽  
Stephanie Chapman ◽  
...  
Keyword(s):  
Distribution Function ◽  
Pair Distribution Function ◽  
Function Analysis ◽  
X Ray Diffraction ◽  
Crystallisation Kinetics ◽  
Total Scattering ◽  
Hierarchically Porous ◽  
X Ray ◽  
Scattering Measurements

Novel in situ synchrotron total scattering measurements probe the assembly of primary building units into templated hierarchically porous aluminophosphate catalysts, providing unique insights to understanding crystallisation kinetics.

scholarly journals In situ X-ray pair distribution function analysis of accelerated carbonation of a synthetic calcium–silicate–hydrate gel

2015 ◽  
Vol 3 (16) ◽  
pp. 8597-8605 ◽  
Author(s):  
Antoine E. Morandeau ◽  
Claire E. White
Keyword(s):  
Distribution Function ◽  
Pair Distribution Function ◽  
Calcium Silicate Hydrate ◽  
Function Analysis ◽  
High Energy ◽  
Accelerated Carbonation ◽  
X Ray ◽  
Kinetics Of Reaction ◽  
Kinetics Of

The kinetics of reaction and the local atomic structure of carbonating C–S–H gel are characterised using high-energy synchrotron radiation.

scholarly journals Retarder effect on hydrating oil well cements investigated using in situ neutron/X-ray pair distribution function analysis

2019 ◽  
Vol 126 ◽  
pp. 105920 ◽  
Author(s):  
Kunal Kupwade-Patil ◽  
Peter J. Boul ◽  
Diana K. Rasner ◽  
S. Michelle Everett ◽  
Thomas Proffen ◽  
...  
Keyword(s):  
Distribution Function ◽  
Pair Distribution Function ◽  
Function Analysis ◽  
Oil Well ◽  
X Ray

scholarly journals Formation and growth mechanism for niobium oxide nanoparticles: Atomistic insight from in situ X-ray total scattering

Nanoscale ◽  
2021 ◽  
Author(s):  
Olivia Aalling-Frederiksen ◽  
Mikkel Juelsholt ◽  
Andy Sode Anker ◽  
Kirsten Marie Ørnsbjerg Jensen
Keyword(s):  
Distribution Function ◽  
Growth Mechanism ◽  
Pair Distribution Function ◽  
Niobium Oxide ◽  
Function Analysis ◽  
Nucleation And Growth ◽  
Oxide Nanoparticles ◽  
Total Scattering ◽  
X Ray

Understanding the mechanisms for nanoparticle nucleation and growth is crucial for the development of tailormade nanomaterials. Here, we use X-ray total scattering and Pair Distribution Function analysis to follow the...

scholarly journals Quantitative X-ray pair distribution function analysis of nanocrystalline calcium silicate hydrates: a contribution to the understanding of cement chemistry

2017 ◽  
Vol 50 (1) ◽  
pp. 14-21 ◽  
Author(s):  
Sylvain Grangeon ◽  
Alejandro Fernandez-Martinez ◽  
Alain Baronnet ◽  
Nicolas Marty ◽  
Agnieszka Poulain ◽  
...  
Keyword(s):  
Distribution Function ◽  
Calcium Silicate ◽  
Pair Distribution Function ◽  
Function Analysis ◽  
Structural Evolution ◽  
Scattering Data ◽  
Microscopy Imaging ◽  
X Ray ◽  
Atomic Pair Distribution Function ◽  
Calcium Silicate Hydrates

The structural evolution of nanocrystalline calcium silicate hydrate (C–S–H) as a function of its calcium to silicon (Ca/Si) ratio has been probed using qualitative and quantitative X-ray atomic pair distribution function analysis of synchrotron X-ray scattering data. Whatever the Ca/Si ratio, the C–S–H structure is similar to that of tobermorite. When the Ca/Si ratio increases from ∼0.6 to ∼1.2, Si wollastonite-like chains progressively depolymerize through preferential omission of Si bridging tetrahedra. When the Ca/Si ratio approaches ∼1.5, nanosheets of portlandite are detected in samples aged for 1 d, while microcrystalline portlandite is detected in samples aged for 1 year. High-resolution transmission electron microscopy imaging shows that the tobermorite-like structure is maintained to Ca/Si > 3.

Sign in / Sign up

Export Citation Format

Share Document