The effect of sorbitol on the morphological characteristics of lead–tin films electrodeposited from an alkaline bath

Siqueira, J.L.P.; Carlos, I.A.

doi:10.1016/j.jpowsour.2007.03.058

Cited by 7 publications

(8 citation statements)

References 22 publications

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“…species is modelled by Eq. 1, which includes the reduction of soluble species to form insoluble species [17,18]: Figure 5b shows that the peak current density (j p ) increases with v 1/2 , but is not quite linear, suggesting that the Cu electrodeposition process may be controlled by charge transfer and mass transport in this region [19].…”

Section: Resultsmentioning

confidence: 99%

Voltammetric study of the influence of benzotriazole on copper deposition from a sulphuric plating bath

et al. 2008

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Copper electrodeposition on to a platinum substrate from an acid sulphate plating bath was investigated with and without the additive benzotriazole (BTAH). In voltammetric experiments, the deposition process is shifted to more negative potentials in the presence of BTAH than in its absence from the bath. Moreover, the current density of the deposition process was higher in the presence of this additive than in its absence. With or without the additive, copper deposition showed features of nucleation in the voltammetric curves. Scanning electronic microscopy (SEM) images showed that copper deposits laid down in the presence of BTAH, for any potential and charge density studied, were smoother than in the absence of this additive. X-ray spectra indicated that the electrodeposits produced in the absence or presence of BTAH were composed of a mixture of copper, copper oxide and platinum oxide and also indicated that in the presence of BTAH, the deposit was less crystalline than in its absence.

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Section: Resultsmentioning

confidence: 99%

Voltammetric study of the influence of benzotriazole on copper deposition from a sulphuric plating bath

et al. 2008

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“…A principal vantagem de um revestimento metálico eletroquimicamente é o mecanismo de crescimento do filme, porque esse crescimento ocorre na difusão superficial dos íons, e o filme torna-se mas compacto e denso [10]. E conforme a literatura, as curvas de polarização anódicas ou potenciodinâmicas são muito utilizadas para testar a proteção contra a corrosão a fim de identificar o potencial de corrosão das ligas aplicando-se valores de potencial [6,[12][13].…”

Section: Proteção Contra Corrosãounclassified

“…As técnicas voltamétricas, como por exemplo, a voltametria cíclica, são aquelas onde se controla o potencial de um eletrodo, enquanto a corrente é determinada como uma função do tempo [13][14][15].…”

Section: Técnicas De Eletrodeposiçãounclassified

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INFLUÊNCIA DO SORBITOL NA ELETRODEPOSIÇÃO DA LIGA Zn-Co SOBRE O AÇO BAIXO CARBONO (NBR6665)

Ribeiro¹,

Bertagnolli²

2019

ABM Proceedings

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Resumo As ligas Zn-Co são utilizadas como revestimentos de substratos metálicos, conferindo melhorias em algumas propriedades do material quando comparadas aos metais puros, principalmente em relação à inibição da corrosão. Através da eletrodeposição é possível obter ligas de Zn-Co para o revestimento de substratos e soluções eletrolíticas que contenham substâncias que melhorem a qualidade do revestimento. Entre essas substâncias estão os compostos orgânicos, que podem alterar o aspecto visual, as propriedades morfológicas e mecânicas do depósito. Assim o objetivo deste estudo foi verificar a influência do sorbitol (diferentes concentrações) adicionado à solução eletrolítica contendo ZnSO 4 e CoSO 4 em meio ácido, sendo a liga Zn-Co depositada eletroliticamente sobre o aço NBR6665, através da eletrodeposição. Caracterizou-se os revestimentos utilizando-se um Microscópio Óptico Concocal e um Espectrômetro de Emissão Óptica por Plasma acoplado Indutivamente (ICP OES). Os resultados mostraram que o sorbitol, em diferentes concentrações, melhorou as características do revestimento, com a diminuição da rugosidade e da porosidade tornando o revestimento mais uniforme devido ao controle da taxa de crescimento de formação dos grãos e a inibição dos íons metálicos a serem depositados. Concluindo-se assim que a presença do aditivo orgânico na solução eletrolítica diminui a eficiência do depósito da liga Zn-Co. Palavras-chave: Eletrodeposição; Liga Zn-Co; Aditivo orgânico; Análise do depósito.

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“…In general, the electrodeposited films are free of cracks and dendrites [27][28][29][30][31][32][33][34][35][36][37][38][39]. Also, polyalcohols in the alkaline plating bath inhibit the corrosion of zinc [28,39].…”

Section: Introductionmentioning

confidence: 99%

Study of the influence of a boric–sorbitol complex on Zn–Mn electrodeposition and on the morphology, chemical composition, and structure of the deposits

2011

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Zn-Mn electrodeposition onto Pt from an electrolyte containing boric-sorbitol complex (BSC) or boric acid alone (BA) was studied. The influence of BA or BSC content on the deposition process was investigated by cyclic voltammetry and electrodeposits, produced potentiostatically, were analysed by SEM, EDX, and XRD. The voltammetric studies indicated that an increase in the BSC concentration led to a decrease in the deposition current density. EDX analysis of deposits obtained at -1.60 V showed that increasing the BA or BSC concentration in the bath induced a fall in the Mn content of the electrodeposit and that for BSC this decrease was more significant. SEM images showed that the Zn-Mn electrodeposit obtained in the presence of 0.24 M BSC were smoother than other deposits; hence, BSC acted as a grain refiner at this concentration. XRD analysis of this deposit indicated that it was composed of Zn, Mn, MnZn 13 , and MnH 0.8 .

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The effect of sorbitol on the morphological characteristics of lead–tin films electrodeposited from an alkaline bath

Cited by 7 publications

References 22 publications

Voltammetric study of the influence of benzotriazole on copper deposition from a sulphuric plating bath

Voltammetric study of the influence of benzotriazole on copper deposition from a sulphuric plating bath

INFLUÊNCIA DO SORBITOL NA ELETRODEPOSIÇÃO DA LIGA Zn-Co SOBRE O AÇO BAIXO CARBONO (NBR6665)

Study of the influence of a boric–sorbitol complex on Zn–Mn electrodeposition and on the morphology, chemical composition, and structure of the deposits

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