A photoelectrochemical study of the anodic oxidation of lead in alkaline solution

Buchanan, J. Scott; Freestone, Nigel P.; Peter, Laurence M.

doi:10.1016/0368-1874(85)87013-1

Cited by 48 publications

(3 citation statements)

References 25 publications

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“…The formation of a dual-phase base layer was also claimed by Buchanan et al (10) for lead oxidation in 0.1 mol L-' Na2B407 at pH = 9.0. The nature of these phases was not determined, but lead metaborate (Pb(B02)2) and lead tetraborate (PbB407) were mentioned as two possibilities.…”

Section: Discussionsupporting

confidence: 70%

Anodic oxidation of lead in aqueous carbonate solutions. I. Film formation and dissolution at pH = 12

Shoesmith¹,

Bailey²

1988

Can. J. Chem.

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. Can. J. Chem. 66, 2652Chem. 66, (1988. The anodic oxidation of lead has been studied using rotating disk electrodes, under voltammetric and potentiostatic conditions, in aqueous carbonate solutions at pH = 12. The solid films formed on the electrode surface have been identified by X-ray diffractometry. Two distinct surface layers are formed: a compact layer composed of two separate phases, plumbonacrite (Pb100(OH)6(C03)6) and hydrocerussite (Pb3(0H)2(C03)2); and a more dispersed layer of hydrocerussite. The plumbonacrite in the compact layer is formed directly on the electrode surface by a solid-state growth process. The hydrocerussite component of this compact layer appears to form by conversion of the outer layers of plumbonacrite. The dispersed layer is formed by deposition from solution. The extent of deposition is controlled by the rate of transport of soluble pb2+ species to the bulk of solution. Chem. 66, 2652Chem. 66, (1988. Operant dans des solutions aqueuses de carbonate, a un pH de 12, dans des conditions voltam&triques ainsi que potentiostatiques et faisant appel a des electrodes a disque tournant, on a ttudit l'oxydation anodigue du plomb. Utilisant la diffraction des rayons-X, on a identifie les films solides qui se forment h la surface de 1'Clectrode. A cette surface, il se forme deux couches distinctes : une couche compacte composee de deux phases sCparCes, de la plumbonacrite (Pb10)(OH)6(C03)6) et de l'hydrocerussite (Pb3(0H)2(C03)2) ainsi qu'une couche plus dispersee d'hydrocerussite. La plumbonacrite presente dans la couche compacte se forme directement sur la surface de 1'Clectrode par un processus de croissance ? i 1'Ctat solide. I1 semble que la composante hydrockrussite de cette couche compacte se forme par la conversion des couches exterieures de plumbonacrite.La couche dispersee se forme par une deposition a partir de la solution. Le taux de dkposition est contrBlC par la vitesse de transport des espkces Pb2+ h partir de la solution.[Traduit par la revue]

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Section: Discussionsupporting

confidence: 70%

Anodic oxidation of lead in aqueous carbonate solutions. I. Film formation and dissolution at pH = 12

Shoesmith¹,

Bailey²

1988

Can. J. Chem.

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“…Although semiconductor photoelectrochemistry lies outside the scope of this chapter (an excellent review has been published by Morrison [57]), photocurrent spectroscopy has found more general application as an in-situ technique for the characterisation of surface films formed on metal electrodes such as Fe [58] and Pb [59] during corrosion. Although semiconductor photoelectrochemistry lies outside the scope of this chapter (an excellent review has been published by Morrison [57]), photocurrent spectroscopy has found more general application as an in-situ technique for the characterisation of surface films formed on metal electrodes such as Fe [58] and Pb [59] during corrosion.…”

Section: Photocurrent Spectroscopymentioning

confidence: 99%

Spectroelectrochemistry

Pletcher

GREFF

Peat

et al. 2010

Instrumental Methods in Electrochemistry

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“…Passivation of lead and lead alloys is believed to occur by the formation of highly resistive -PbO at the interface between the grid and the active material during the oxidation of lead to lead dioxide, which passivate the electrical contact over the boundary layer [4][5][6][7][8][9]. -PbO is formed under the lead sulphate layer where the local pH value is close to 9 due to the semipermeable properties of the lead sulphate layer, allowing a flux of H + , OH − , and water species, while hindering SO 4 2− and HSO 4 − ions [9].…”

Section: Introductionmentioning

confidence: 99%

Role of Indium Alloying with Lead as a Means to Reduce the Passivation Phenomena in Lead/Acid Batteries

El-Sayed

Mohran

Shilkamy

2014

International Journal of Electrochemistry

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The influence of indium content on the anodic behaviour of Pb-In alloys in 4 M H2SO4solution is investigated by potentiodynamic, potentiostatic, chronopotentiometric, and cyclic voltammetric techniques. The composition and microstructure of the corrosion layer on Pb-In alloys are characterized by X-ray diffraction (XRD), energy-dispersive X-ray spectroscopy analysis (EDX), and scanning electron microscopy (SEM). The potentiodynamic and chronopotentiometric curves show that the anodic behavior of all investigated electrodes exhibits active/passive transition. The active dissolution (except for alloy I) and passive currents increase with increasing both In content and temperature. This indicates that the conductivity of the anodic film on Pb-In alloy is enhanced. This study exhibits that indium catalyses the oxidation of Pb (II) to Pb (IV) and facilitates the formation of a more highly conductive corrosion layer on lead. Alloy I (0.5% In) exhibits that the corrosion rate is lower, while the passive current is higher than that of Pb. XRD, EDX, and SEM results reveal that the formation of both PbSO4and PbO on the surface decreases gradually with increasing In level in the alloy and completely disappear at higher In content (15% In). Therefore, recharge of the battery will be improved due to indium addition to Pb.

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A photoelectrochemical study of the anodic oxidation of lead in alkaline solution

Cited by 48 publications

References 25 publications

Anodic oxidation of lead in aqueous carbonate solutions. I. Film formation and dissolution at pH = 12

Anodic oxidation of lead in aqueous carbonate solutions. I. Film formation and dissolution at pH = 12

Spectroelectrochemistry

Role of Indium Alloying with Lead as a Means to Reduce the Passivation Phenomena in Lead/Acid Batteries

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