Missing Building Blocks Defects in a Porous Hydrogen-bonded Amide-Imidazolate Network Proven by Positron Annihilation Lifetime Spectroscopy

2016 ◽  
Vol 1 (14) ◽  
pp. 4320-4325 ◽  
Author(s):  
Suvendu Sekhar Mondal ◽  
Subarna Dey ◽  
Ahmed G. Attallah ◽  
Asamanjoy Bhunia ◽  
Alexandra Kelling ◽  
...  
Keyword(s):  
Positron Annihilation ◽  
Building Blocks ◽  
Positron Annihilation Lifetime Spectroscopy ◽  
Positron Annihilation Lifetime ◽  
Hydrogen Bonded

Probing capped and uncapped mesoporous low-dielectric constant films using positron annihilation lifetime spectroscopy

2000 ◽  
Vol 77 (16) ◽  
pp. 2470-2472 ◽  
Author(s):  
Mihail P. Petkov ◽  
Marc H. Weber ◽  
Kelvin G. Lynn ◽  
Kenneth P. Rodbell
Keyword(s):  
Dielectric Constant ◽  
Positron Annihilation ◽  
Positron Annihilation Lifetime Spectroscopy ◽  
Low Dielectric Constant ◽  
Positron Annihilation Lifetime ◽  
Low Dielectric

Porosimetry for Thin Films of Metal–Organic Frameworks: A Comparison of Positron Annihilation Lifetime Spectroscopy and Adsorption‐Based Methods

2021 ◽  
pp. 2006993
Author(s):  
Timothée Stassin ◽  
Rhea Verbeke ◽  
Alexander John Cruz ◽  
Sabina Rodríguez‐Hermida ◽  
Ivo Stassen ◽  
...  
Keyword(s):  
Thin Films ◽  
Positron Annihilation ◽  
Metal Organic Frameworks ◽  
Positron Annihilation Lifetime Spectroscopy ◽  
Positron Annihilation Lifetime ◽  
Metal Organic

Positron Annihilation Lifetime Spectroscopy (PALS) for Interdiffusion Studies in Disperse Blends of Compatible Polymers:  A Quantitative Analysis

2002 ◽  
Vol 35 (16) ◽  
pp. 6313-6323 ◽  
Author(s):  
G. Dlubek ◽  
J. Pionteck ◽  
V. Bondarenko ◽  
G. Pompe ◽  
Ch. Taesler ◽  
...  
Keyword(s):  
Quantitative Analysis ◽  
Positron Annihilation ◽  
Positron Annihilation Lifetime Spectroscopy ◽  
Positron Annihilation Lifetime

Insights into positron annihilation lifetime spectroscopy by molecular dynamics simulations

2005 ◽  
Vol 32 (3) ◽  
pp. 289-297 ◽  
Author(s):  
D. Ra?ko ◽  
R. Chelli ◽  
G. Cardini ◽  
J. Barto? ◽  
S. Califano
Keyword(s):  
Molecular Dynamics ◽  
Molecular Dynamics Simulations ◽  
Positron Annihilation ◽  
Positron Annihilation Lifetime Spectroscopy ◽  
Positron Annihilation Lifetime ◽  
Dynamics Simulations

Composition of pore surface investigated by positron annihilation lifetime spectroscopy

2012 ◽  
Vol 163 ◽  
pp. 276-281 ◽  
Author(s):  
Marek Gorgol ◽  
Maciej Tydda ◽  
Agnieszka Kierys ◽  
Radosław Zaleski
Keyword(s):  
Positron Annihilation ◽  
Positron Annihilation Lifetime Spectroscopy ◽  
Pore Surface ◽  
Positron Annihilation Lifetime

Preliminary Positron Lifetime Results on Free Volumes in Cyclodextrins

2010 ◽  
Vol 666 ◽  
pp. 99-102 ◽  
Author(s):  
Maria Fatima Ferreira Marques ◽  
A.M.G. Moreira Da Silva ◽  
P.M. Gordo ◽  
Z. Kajcsos
Keyword(s):  
Positron Annihilation ◽  
Free Volume ◽  
Positron Lifetime ◽  
Positron Annihilation Lifetime Spectroscopy ◽  
Positron Source ◽  
Lifetime Component ◽  
Positron Annihilation Lifetime ◽  
Long Lifetime

Positron annihilation lifetime spectroscopy was used to study the free-volume parameters in various pure -, - and -cyclodextrins samples and, in the case of β-cyclodextrin, with inclusion of S-carvone and thymoquinone. The results clearly indicate the presence of long lifetime components related to Ps-formation. The data show that the addition of S-carvone to β-cyclodextrin results in a decrease of o-Ps lifetime that we ascribe to a reduction of free volume holes from 81.8 to 63.7 Å3. The long lifetime component disappears when thymoquinone is added to -cyclodextrin, indicating this substance acts as an o-Ps quencher. For all samples studied, a decrease in the long lifetime component values was observed with increasing source in situ time, a result that might be attributed to the irradiation of the sample by the 22Na positron source.

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