2011
DOI: 10.1016/j.electacta.2011.07.005
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Control of morphology and surface wettability of anodic niobium oxide microcones formed in hot phosphate–glycerol electrolytes

Abstract: We report the fabrication of superhydrophobic surfaces with a hierarchical morphology by self-organized anodizing process. Simply by anodizing of niobium metal in hot phosphate-glycerol electrolyte, niobium oxide microcones, consisting of highly-branched

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Cited by 35 publications
(23 citation statements)
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“…[10] Habazaki and co-workers have subsequently shown that microcones can also be generated from anodization in a hot glycerol electrolyte containing both K 2 HPO 4 and K 3 PO 4 . [11,12] Where crystallinity has been examined (by diffraction), it has been found that microcone niobium oxide is crystalline as grown, in contrast to the majority of other oxides formed by anodization, which are typically amorphous. Though the microstructural characteristics have not yet been studied in detail, microconical niobium oxide has the appearance of rough nanowires or needles that extend from the underlying substrate and clump into tent-like hillocks.…”
Section: Introductionmentioning
confidence: 99%
“…[10] Habazaki and co-workers have subsequently shown that microcones can also be generated from anodization in a hot glycerol electrolyte containing both K 2 HPO 4 and K 3 PO 4 . [11,12] Where crystallinity has been examined (by diffraction), it has been found that microcone niobium oxide is crystalline as grown, in contrast to the majority of other oxides formed by anodization, which are typically amorphous. Though the microstructural characteristics have not yet been studied in detail, microconical niobium oxide has the appearance of rough nanowires or needles that extend from the underlying substrate and clump into tent-like hillocks.…”
Section: Introductionmentioning
confidence: 99%
“…According to Yang et al 16 , larger microcones with a higher edge angle are preferable for improving the water contact angle, obtaining a more hydrophobic surface. …”
Section: Wettability Analysismentioning
confidence: 99%
“…The sample anodized in 5 min in ammonium niobium oxalate had a more hydrophobic behavior compared to the sample anodized in oxalic acid, which can be related to the incorporation of ammonium niobium and oxalate ions in the oxide during the anodization. According to Yang et al 16 super hydrophobic surfaces have been achieved with the application of coatings on porous samples masking the surface roughness.…”
Section: Wettability Analysismentioning
confidence: 99%
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