Novel tree-like WO3 nanoplatelets with very high surface area synthesized by anodization under controlled hydrodynamic conditions
作者： R.M. Fernández-Domene , R. Sánchez-Tovar , E. Segura-Sanchís , J. García-Antón
DOI: 10.1016/J.CEJ.2015.10.069
关键词: Electrolyte 、 Raman spectroscopy 、 Nanotechnology 、 Anodizing 、 Chemical engineering 、 Microscopy 、 Field electron emission 、 Electrode 、 Nanostructure 、 Materials science 、 Rotating disk electrode
摘要: Abstract In the present work, a new WO 3 nanostructure has been obtained by anodization in H 2 SO 4 /NaF electrolyte under controlled hydrodynamic conditions using Rotating Disk Electrode (RDE) configuration. Anodized samples were analyzed means of Field Emission Scanning Electronic Microscopy (FE-SEM), Confocal Raman and photoelectrochemical measurements. The nanostructure, which consists nanoplatelets clusters growing tree-like manner, presents very high surface area exposed to electrolyte, leading an outstanding enhancement its activity. Obtained results show that size nanostructures percentage electrode covered these depend strongly on rotation velocity composition.
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