In Situ Studies of the Formation of Tungsten and Niobium Oxide Nanoparticles: Towards Automated Analysis of Reaction Pathways from PDF Analysis using the Pearson Correlation Coefficient
In Situ Studies of the Formation of Tungsten and Niobium Oxide Nanoparticles: Towards Automated Analysis of Reaction Pathways from PDF Analysis using the Pearson Correlation Coefficient
复制标题
钨和氧化铌纳米粒子形成的原位研究:使用皮尔逊相关系数从 PDF 分析中自动分析反应路径
DOI:
10.1002/cmtd.202200034
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发表时间:
2022
期刊:
影响因子:
--
通讯作者:
Jensen, Kirsten M. Ø.
中科院分区:
文献类型:
--
作者:
Kjær, Emil T. S.;Aalling‐Frederiksen, Olivia;Yang, Long;Thomas, Nancy K.;Juelsholt, Mikkel;Billinge, Simon J. L.;Jensen, Kirsten M. Ø.
Using Pair Distribution Function (PDF) analysis of in situ total scattering data, we investigate the formation of tungsten and niobium oxides in a simple solvothermal synthesis. We use Pearson Correlation Coefficient (PCC) analysis of the time resolved PDFs to both map the structural changes taking place throughout the synthesis and identify structural models for precursor and product through PCC‐based structure mining. Our analysis first shows that ultra‐small tungsten and niobium oxide nanoparticles form instantaneously upon heating, with sizes between 1.5 and 2 nm. We show that the main structural motifs in the nanoparticles can be described with structures containing pentagonal columns, which is characteristic for many bulk tungsten and niobium oxides. We furthermore elucidate the structure of the precursor complex as clusters of octahedra with O‐ and Cl‐ligands. The PCC based methodology automates the structure characterization and proves useful for analysis of large datasets of for example, time resolved X‐ray scattering studies. The PCC is implemented in ‘PDF in the cloud’, a web platform for PDF analysis.
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影响因子:
3.7
作者:
Juelsholt, Mikkel;Christiansen, Troels Lindahl;Jensen, Kirsten M. O.
通讯作者:
Jensen, Kirsten M. O.
影响因子:
--
作者:
F. Tamadon;K. Seppelt
通讯作者:
K. Seppelt
影响因子:
16.6
作者:
SCHAFER, H;GRUEHN, R;SCHULTE, F
通讯作者:
SCHULTE, F
DOI:
--
发表时间:
2013
期刊:
影响因子:
--
作者:
Timur Davis;Matthew N. R. Johnson;S. Billinge
通讯作者:
S. Billinge
影响因子:
15
作者:
Firth, Francesca C. N.;Gaultois, Michael W.;Cliffe, Matthew J.
通讯作者:
Cliffe, Matthew J.