Lead Nanowires for Microaccumulators Obtained Through Indirect Electrochemical Template Deposition

Inguanta, Rosalinda; Rinaldo, E.; Piazza, S.; Sunseri, C.

doi:10.1149/1.3246944

Cited by 29 publications

(19 citation statements)

References 14 publications

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“…Despite the complete dissolution of the template, NWs did not collapse, but remained separated. A similar morphology was obtained by us after potentiostatic deposition of ␣-PbO 2 at 1.5 V/SCE and 60 • C [11,12] and by Perret et al [15].…”

Section: Morphological Characterizationsupporting

confidence: 85%

“…Samples were characterized by X-ray diffraction (XRD) and energy dispersive spectroscopy (EDS). These characterization methods are described in detail elsewhere [3,11,12,[21][22][23]. Morphology was evaluated by Scanning Electron Microscopy (SEM) using a FEI field-emission gun (FEG) environmental scanning electron microscope (model QUANTA 200) equipped with EDS.…”

Section: Methodsmentioning

confidence: 99%

“…Besides, it is preferred for ozone production [9] and it presents the same performance of the ␤-phase as pH sensor [10]. • Fabrication of ␣-PbO 2 NSs is the first step of the electrochemical fabrication of metallic lead nanowires (NWs) by an undirected method, recently reported by us [11]. • Finally, this work is aimed to investigate the possibility of obtaining NSs of pure ␣-phase also at low temperatures.…”

Section: Introductionmentioning

confidence: 99%

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Effect of temperature on the growth of α-PbO2 nanostructures

Inguanta

Vergottini

Ferrara

et al. 2010

Electrochimica Acta

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Section: Morphological Characterizationsupporting

confidence: 85%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effect of temperature on the growth of α-PbO2 nanostructures

Inguanta

Vergottini

Ferrara

et al. 2010

Electrochimica Acta

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“…Electrochemical oxidation is a promising technique that can be used for the electrochemical incineration of wastewaters, and has been intensively studied recently [1][2][3][4][5][6][7][8] . One of the most important requirements for electrochemical oxidation is finding a suitable electrode material.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical Deposition of Lead Dioxide Nanostructured Thin Films

Li¹,

Brachet²,

Ghasemi³

et al. 2014

IOSRJEN

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-We report on the preparation of lead oxides nanostructured thin films by anodic and cathodic electrochemical deposition. The films were prepared using an aqueous electrolyte composed of lead chloride and nitric acid, without any catalyst. A controlled potential was applied through the electrolyte to deposit the lead oxide on gold coated silicon and on titanium foil. The formation of lead oxide nanostructures was strongly influenced by the applied potential, deposition temperature and solution pH. The role of these parameters on the synthesis of nanostructured lead dioxide was studied in detail, and enabled the determination of the optimal conditions for the fabrication of nanostructured lead dioxide thin films suitable for wastewater treatment.

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“…21 In addition, as an interlayer of the electrode, the binding force of β-PbO 2 and its underlayer would be improved by α-PbO 2 .…”

mentioning

confidence: 99%

An RDE Investigation of NaOH Effect on Electrosynthesis of Lead Dioxide in Alkaline Solution

Ren-ping

Han

et al. 2016

J. Electrochem. Soc.

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An electrochemical investigation of NaOH concentration on electrosynthesis of lead dioxide in alkaline solutions was performed using rotating disk electrodes (RDE). The results show that Pb(II) does not modify the evolution of oxygen in alkaline solutions, and the reaction taking place at 0.84 V SHE is under the mixed control of ionic transport and charge transfer. The Koutechy-Levich equation was used to calculate the value of diffusion coefficient D and apparent heterogeneous rate constant k of the PbO 2 electrodeposition process at 0.84 V SHE . The results indicate that NaOH has a negative influence on the diffusion of Pb(II) within a NaOH concentration range of 2.5 ∼ 4.5 M. In addition, NaOH has a positive influence on the apparent heterogeneous rate constant of Pb(II) oxidation reactions within a NaOH concentration range of 2.5 ∼ 3 M, but a negative influence within a NaOH concentration range of 3 ∼ 4.5 M. XRD and SEM were employed to investigate the effects of NaOH concentration on phase composition and surface microstructures of deposits. The results show that PbO 2 synthesized in an alkaline solution consists of pure α phase. The deposits are all composed of rounded nanocrystallites, except for the deposit synthesized in a solution of 3 M NaOH, which exhibited rod-like crystallite. Lead dioxide (PbO 2 ) has attracted considerable attention, owing to its low electrical resistivity, low cost, ease of preparation, good chemical stability in acid media, high overpotential for oxygen evolution reactions (OER), and relatively large surface area.1-4 Thus, lead dioxide has already been used in lead batteries, 5-7 ozone generation, 8,9 waste water treatment, 10-12 analytical sensors, 13 and the electrowinning process.14 It is well known that PbO 2 has two phases: the α phase and β phase. Electrodeposition is a traditional way to prepare these two phases of PbO 2 . 15 The conditions (mainly composition and temperature) of the synthesizing bath determine the phase of deposits. 16 To the best of our knowledge, α-PbO 2 is less studied than β-PbO 2 due to its lower electrochemical activity and electrical conductivity.17 Despite the shortcomings mentioned above, α-PbO 2 is chemically more stable than β-PbO 2 ; consequently, it promotes longer life cycles of lead-acid batteries.18 Besides, it is beneficial to ozone production, 19 presents the same performance of β-PbO 2 as a pH sensor 20 and is the first step in the electrochemical fabrication of metallic lead nanowires (NWs). 21 In addition, as an interlayer of the electrode, the binding force of β-PbO 2 and its underlayer would be improved by α-PbO 2 .22 Pure α-PbO 2 can be deposited from an acetic acid lead bath 23 or a methanesulfonic acid lead bath 24 at suitable conditions. However, a stress-free α-PbO 2 can be obtained by electrodeposition from an alkaline lead bath. 25,26 Cyclic voltammetry (CV) technology is a general and powerful method to study reactions in aqueous solutions, surface adsorption and deposition. 27,28 It can be used to investigate the kinetics ...

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Lead Nanowires for Microaccumulators Obtained Through Indirect Electrochemical Template Deposition

Cited by 29 publications

References 14 publications

Effect of temperature on the growth of α-PbO2 nanostructures

Effect of temperature on the growth of α-PbO2 nanostructures

Electrochemical Deposition of Lead Dioxide Nanostructured Thin Films

An RDE Investigation of NaOH Effect on Electrosynthesis of Lead Dioxide in Alkaline Solution

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