Revealing the structure of the active sites for the electrocatalytic CO2 reduction to CO over Co single atom catalysts using operando XANES and machine learning

Martini, A.; Timoshenko, J.; Rüscher, M.; Hursán, D.; Monteiro, M.C.O.; Liberra, E.; Roldan Cuenya, B.

doi:10.1107/S1600577524004739

Journal of Synchrotron Radiation Journal of
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Figure 2
(a) First five principal components (PCs) extracted from the Co K-edge XANES dataset, weighted by their corresponding singular values. The numbers in brackets indicate the multiplicative factors used to enhance the PCs features for a clearer visualization. (b) Scree plot. (c) Imbedded error plot. (d) Malinowski indicator factor plot. (e) Significance level plot derived from the Fisher test. The arrows point to the number of pure species contributing to the XANES dataset, as obtained from each test. For all of them, this number was found to correspond to 3.

JOURNAL OF
SYNCHROTRON
RADIATION

ISSN: 1600-5775

Volume 31| Part 4| July 2024| Pages 741-750

https://doi.org/10.1107/S1600577524004739

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