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| 100 | 1 | _ | |a Timoshenko, Janis |0 P:(DE-H253)PIP1011123 |b 0 |e Corresponding author |
| 245 | _ | _ | |a Local structure of nanosized tungstates revealed by evolutionary algorithm |
| 260 | _ | _ | |a Weinheim |c 2015 |b Wiley-VCH |
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| 336 | 7 | _ | |a ARTICLE |2 BibTeX |
| 520 | _ | _ | |a Nanostructured tungstates, such as CoWO$_{4}$ and CuWO$_{4}$, are very promising catalytic materials, particularly for photocatalytic oxidation of water. The high catalytic activity of tungstate nanoparticles partially is a result of their extremely small sizes, and, consequently, high surface-to-volume ratio. Therefore their properties depend strongly on the atomic structure, which differ significantly from that of the bulk material. X-ray absorption spectroscopy is a powerful technique to address the challenging problem of the local structure determination in nanomaterials. In order to fully exploit the structural information contained in X-ray absorption spectra, in this study we employ a novel evolutionary algorithm (EA) for the interpretation of the Co and Cu K-edges as well as the W L$_{3}$-edge extended X-ray absorption fine structure (EXAFS) of nanosized CoWO$_{4}$ and CuWO$_{4}$. The combined EA-EXAFS approach and simultaneous analysis of the W L$_{3}$ and Co(Cu) K-edge EXAFS spectra allowed us for the first time to obtain a 3D structure model of the tungstate nanoparticles and to explore in details the effect of size, temperature and transition metal type. |
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| 773 | _ | _ | |a 10.1002/pssa.201431561 |g Vol. 212, no. 2, p. 265 - 273 |0 PERI:(DE-600)1481091-8 |n 2 |p 265 - 273 |t Physica status solidi / A |v 212 |y 2015 |x 1862-6300 |
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