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@ARTICLE{Masliuk:842568,
author = {Masliuk, Liudmyla and Heggen, Marc and Noack, Johannes and
Girgsdies, Frank and Trunschke, Annette and Hermann, Klaus
E. and Willinger, Marc Georg and Schlögl, Robert and
Lunkenbein, Thomas},
title = {{S}tructural {C}omplexity in {H}eterogeneous {C}atalysis:
{C}ataloging {L}ocal {N}anostructures},
journal = {The journal of physical chemistry / C},
volume = {121},
number = {43},
issn = {1932-7455},
address = {Washington, DC},
publisher = {Soc.},
reportid = {FZJ-2018-00787},
pages = {24093 - 24103},
year = {2017},
abstract = {We present an analytical route toward a detailed and
quantitative description of individual defects in
heterogeneous catalysts. The investigation is based on a
high resolution scanning transmission electron microscopy
(STEM) study using complex (Mo,V)Ox mixed oxide as an
example. Tiling the structural regions simplifies the
identification of local modifications in the microstructure.
Up to 19 different structures were observed that can be
listed and classified into different structural motifs,
intergrowth, channels, interstitial regions, and
inclinations. The observed defects are expressed by the
rearrangement of the {(Mo)Mo5O27} building blocks, exhibit
different sizes, penetrate the bulk, and can form decoupled
surface regions that partially cover the crystallographic
bulk. The evaluation of 31 crystals yields an average defect
concentration of $3.3\%$ and indicates the absence of
identical particles. We have, for example, observed 54 of
these rearranged structures close to the surface of one
(Mo,V)Ox particle (100 × 50 nm2). A detailed analysis of
the atomic arrangement at the surface of this particle
suggests a surface composition of (Mo610V230M70)Ox (M = Mo
and/or V). The resulting catalog of motifs reproduces
individual fragments of the real structure of a catalyst and
can reveal detailed defect–activity correlations that will
contribute to a better understanding of heterogeneous
catalysis.},
cin = {ER-C-1},
ddc = {540},
cid = {I:(DE-Juel1)ER-C-1-20170209},
pnm = {143 - Controlling Configuration-Based Phenomena (POF3-143)},
pid = {G:(DE-HGF)POF3-143},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000414724300027},
doi = {10.1021/acs.jpcc.7b08333},
url = {https://juser.fz-juelich.de/record/842568},
}