% IMPORTANT: The following is UTF-8 encoded. This means that in the presence
% of non-ASCII characters, it will not work with BibTeX 0.99 or older.
% Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or
% “biber”.
@ARTICLE{Shchur:910216,
author = {Shchur, Yaroslav and Beltramo, Guillermo and Andrushchak,
Anatolii S. and Vitusevich, Svetlana and Huber, Patrick and
Adamiv, Volodymyr and Teslyuk, Ihor and Boichuk, Nazarii and
Kityk, Andriy V.},
title = {{O}n the issue of textured crystallization of {B}a({NO}3)2
in mesoporous {S}i{O}2: {R}aman spectroscopy and lattice
dynamics analysis},
journal = {Spectrochimica acta / A},
volume = {275},
issn = {0584-8539},
address = {Amsterdam [u.a.]},
publisher = {Elsevier Science},
reportid = {FZJ-2022-03693},
pages = {121157 -},
year = {2022},
abstract = {The lattice dynamics of preferentially aligned nanocrystals
formed upon drying of aqueous Ba(NO3)2 solutions in a
mesoporous silica glass traversed by tubular pores of
approximately 12 nm are explored by Raman scattering. To
interpret the experiments on the confined nanocrystals
polarized Raman spectra of bulk single crystals and X-ray
diffraction experiments are also performed. Since a cubic
symmetry is inherent to Ba(NO3)2, a special Raman scattering
geometry was utilized to separate the phonon modes of Ag and
Eg species. Combining group-theory analysis and ab initio
lattice dynamics calculations a full interpretation of all
Raman lines of the bulk single crystal is achieved. Apart
from a small confinement-induced line broadening, the peak
positions and normalized peak intensities of the Raman
spectra of the nanoconfined and macroscopic crystals are
identical. Interestingly, the Raman scattering experiment
indicates the existence of comparatively large, 10–20 m,
single-crystalline regions of Ba(NO3)2 embedded in the
porous host, near three orders of magnitude larger than the
average size of single nanopores. This is contrast to the
initial assumption of non-interconnected pores. It rather
indicates an inter-pore propagation of the crystallization
front, presumably via microporosity in the pore walls.},
cin = {IBI-2 / IBI-3},
ddc = {530},
cid = {I:(DE-Juel1)IBI-2-20200312 / I:(DE-Juel1)IBI-3-20200312},
pnm = {5243 - Information Processing in Distributed Systems
(POF4-524) / 5241 - Molecular Information Processing in
Cellular Systems (POF4-524)},
pid = {G:(DE-HGF)POF4-5243 / G:(DE-HGF)POF4-5241},
typ = {PUB:(DE-HGF)16},
pubmed = {35316625},
UT = {WOS:000820827500008},
doi = {10.1016/j.saa.2022.121157},
url = {https://juser.fz-juelich.de/record/910216},
}