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Preparation of porcupine-like Bi2O3 needle bundles by anodic oxidation of bismuth
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Datum publikování:
2017-09-18
Document type:
Article
xmlui.ArtifactBrowser.SimpleSearch.filter.source:
Electrochemistry Communications. 2017, vol. 84
ISSN:
1388-2481
Publisher version:
http://www.sciencedirect.com/science/article/pii/S1388248117302576
Abstract:A new Bi2O3 structure resembling bundles of needles was prepared by anodic oxidation of a bismuth substrate in H2SO4 electrolyte followed by annealing in air. Needle growth occurred on the timescale of minutes. The resulting porcupine-like needle bundles were characterized using SEM and XRD before and after annealing. The as-grown needles consisted of bismuth aqua sulfate hydroxide; however, upon annealing at 250 °C in air, tetragonal β-Bi2O3 was produced without any morphological change.
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Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivs 3.0 Czech Republic
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