Electrodeposition of copper from spent Li-ion batteries by electrochemical quartz crystal microbalance and impedance spectroscopy techniques

Celante, V.G.; Freitas, M.B.J.G.

doi:10.1007/s10800-009-9996-x

Cited by 49 publications

(26 citation statements)

References 17 publications

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“…chlorine and fluorine) can maintain a high oxidation potential under various pH conditions when present in high quantities (Steininger & Pareja ). Copper is an oxidant under acidic and alkaline conditions (Celante & Freitas ) and is known to accelerate the oxidation of melanin via Fenton‐like reactions (Korytowski & Sarna ).…”

Section: Discussionmentioning

confidence: 99%

Taphonomic experiments resolve controls on the preservation of melanosomes and keratinous tissues in feathers

et al. 2019

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Fossils are a key source of data on the evolution of feather structure and function through deep time, but their ability to resolve macroevolutionary questions is compromised by an incomplete understanding of their taphonomy. Critically, the relative preservation potential of two key feather components, melanosomes and keratinous tissue, is not fully resolved. Recent studies suggesting that melanosomes are preferentially preserved conflict with observations that melanosomes preserve in fossil feathers as external moulds in an organic matrix. To date, there is no model to explain the latter mode of melanosome preservation. We addressed these issues by degrading feathers in systematic taphonomic experiments incorporating decay, maturation and oxidation in isolation and combination. Our results reveal that the production of mouldic melanosomes requires interactions with an oxidant and is most likely to occur prior to substantial maturation. This constrains the taphonomic conditions under which melanosomes are likely to be fossilized. Critically, our experiments also confirm that keratinous feather structures have a higher preservation potential than melanosomes under a range of diagenetic conditions, supporting hitherto controversial hypotheses that fossil feathers can retain degraded keratinous structures.

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Section: Discussionmentioning

confidence: 99%

Taphonomic experiments resolve controls on the preservation of melanosomes and keratinous tissues in feathers

et al. 2019

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“…This method is simple and low-cost, but the impurities cannot be removed completely, even with the loss of nickel, cobalt and manganese. Celante et al 32 and Scott et al 33 removed copper with high efficiency by electrodeposition, but the copper impurity could not be removed completely.…”

Section: Introductionmentioning

confidence: 99%

Impurity removal with highly selective and efficient methods and the recycling of transition metals from spent lithium-ion batteries

Peng

et al. 2019

RSC Adv.

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“…The authors of [5][6] applied EQCM method when investigating copper electrodeposition. Anodic oxidation of copper electrodes in alkaline solutions was investigated using EQCM, CV, chronoamperometry (CA) and electrochemical impedance spectroscopy (EIS) measurements [5].…”

Section: Introductionmentioning

confidence: 99%

“…The participation of Cu 3+ soluble species in the electrocatalytic oxidation of ethanol was proved by EQCM measurements, these data providing valuable information on the mechanism of the electrode process and formation of Cu 2+ insoluble species from the reaction of Cu 3+ with ethanol. Also, the results on the copper electrodeposition mechanism at different pH values were obtained using EQCM [6]. Direct reduction of Cu 2+ and copper oxide (CuO) reduction at pH 2.0 and 4.5 occur simultaneously.…”

Section: Introductionmentioning

confidence: 99%

Investigation of Gold Electrosorption onto Gold and Carbon Electrodes using an Electrochemical Quartz Crystal Microbalance

Мансуров

Supiyeva

Avchukir

et al. 2019

Eurasian Chem. Tech. J.

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The adsorption behavior of Au3+ ions on metal electrodes has been studied using an electrochemical quartz crystal microbalance combined with the cyclic voltammetry technique. The experiments were carried out for HAuCl4 using 0.1 mol·L-1 HCl (pH~1) as a background electrolyte solution. The kinetics of electroreduction of Au3+ ions on the rice husk based activated carbon and gold electrodes in chloride electrolytes by the cyclic voltammetry and the electrochemical quartz crystal microbalance with a variation of the scan rate in the range of 5‒50 mV·s-1 has been studied. The diffusion coefficient of Au3+ ions for the tested solution on gold and carbon electrodes was determined by the cyclic voltammetry method on the basis of the Randles-Ševčik equation. It is found that electroreduction of gold goes via the discharge of AuCl4- complexes to the formation of metallic gold with a current efficiency of 97‒99%. The scanning electron microscopic images of the gold adsorbed carbon surface was taken to see gold particles and their morphology. In SEM images, it is clearly seen that the surface of carbon has a relief structure and gold has grown in the form of clusters. The smallest gold nanoparticles that could be examined were 100‒250 nm in diameter on the surface of the c arbon electrode.

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Electrodeposition of copper from spent Li-ion batteries by electrochemical quartz crystal microbalance and impedance spectroscopy techniques

Cited by 49 publications

References 17 publications

Taphonomic experiments resolve controls on the preservation of melanosomes and keratinous tissues in feathers

Taphonomic experiments resolve controls on the preservation of melanosomes and keratinous tissues in feathers

Impurity removal with highly selective and efficient methods and the recycling of transition metals from spent lithium-ion batteries

Investigation of Gold Electrosorption onto Gold and Carbon Electrodes using an Electrochemical Quartz Crystal Microbalance

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