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Structural evolution of WO3 nanoclusters on ZrO2

  • C. Angeles-Chavez (a1), M.A. Cortes-Jácome (a1), E. Torres-Garcia (a1) and J.A. Toledo-Antonio (a1)


Direct evidence of the transformation of WOx species in WO3 nanoclusters on WOx–ZrO2 system was achieved by high-resolution transmission electron microscopy (HRTEM) and Raman spectroscopy on samples obtained by a conventional precipitation method and annealed from 560 to 800 °C. WO3 Nanoclusters with 2-nm crystal size orthorhombic structure were identified on the ZrO2 surface after annealing at 800 °C.


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