Electrodeposition of metal cations from the wet ionic liquid [EMIM][TFSI]

Deen, Matthew C.; Shamshoom, Christina; Gamble, A.; Bejan, Dorin; Bunce, Nigel J.

doi:10.1139/cjc-2015-0308

Cited by 9 publications

(3 citation statements)

References 31 publications

(28 reference statements)

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“…[ 41 ] The electrodeposition of Pb from first‐generation chloridoaluminate ILs has been extensively studied, and in these systems, lead chloride (PbCl 2 ) was used, which is a synthetic compound. [ 42,43 ] Using second‐generation ILs, Pb has been successfully electrodeposited from wet [EMIm][NTf 2 ] ([EMIm] + = 1‐ethyl‐3‐methylimidazolium), [ 44,45 ] [BMPyrr][NTf 2 ] ([BMPyrr] + = 1‐butyl‐1‐methylpyrrolidinium), [ 46 ] and the distillable IL dimethylammonium‐dimethylcarbamat (DIMCARB), [ 47 ] respectively. However, lead dioxide (PbO 2 ) and lead sulfate (PbSO 4 ), which are main components of the lead‐acid battery, are insoluble in the mentioned ILs.…”

Section: Introductionmentioning

confidence: 99%

Ionometallurgical Step‐Electrodeposition of Zinc and Lead and its Application in a Cycling‐Stable High‐Voltage Zinc‐Graphite Battery

Chen

Richter

Wang

et al. 2021

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Ionometallurgy is a new development aiming at the sustainable low‐temperature conversion of naturally occurring metal ores and minerals to their metals or valuable chemicals in ionic liquids (ILs) or deep eutectic solvents. The IL betainium bis((trifluoromethyl)sulfonyl)imide, [Hbet][NTf2], is especially suited for this process due to its redox‐stability and specific‐functionalization. The potentiostatic electrodeposition of zinc and lead starting directly from ZnO and PbO, which dissolve in [Hbet][NTf2] in high concentrations is reported. The initial reduction potentials of zinc(II) and lead(II) are about −1.5 and −1.0 V, respectively. The ionic conductivity of the solution of ZnO in [Hbet][NTf2] is measured and the effect of various temperatures and potentials on the morphology of the deposited material is explored. The IL proves to be stable under the chosen conditions. From IL‐solutions, where ZnO, PbO, and MgO have been dissolved, metallic Zn and Pb are deposited under potentiostatic control either consecutively by step‐electrodeposition or together in a co‐electrodeposition. Using the method, Zn is also deposited on 3D copper foam and assembles into high‐voltage zinc‐graphite battery. It exhibits a working‐voltage up to 2.7 V, an output midpoint discharge‐voltage of up to 2.16 V, up to 98.6% capacity‐retention after 150 cycles, and good rate performance.

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Section: Introductionmentioning

confidence: 99%

Ionometallurgical Step‐Electrodeposition of Zinc and Lead and its Application in a Cycling‐Stable High‐Voltage Zinc‐Graphite Battery

Chen

Richter

Wang

et al. 2021

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“…20 Numerous ILs have been used for the electrodeposition of silver. 11,[21][22][23][24][25][26][27][28][29][30][31][32][33] However, various silver salts such as AgNO₃, AgCl, AgBF₄ and etc. instead of silver oxide were used as the silver sources, which shows that the IL [Hbet][TFSA] may be superior on Ag recovery from Ag₂O coin batteries.…”

mentioning

confidence: 99%

Demonstration of Feasibility Using Ionic Liquid as Electrolyte for Electrochemical Deposition and Recovery of Silver from Silver Oxide

Huang,

Yu,

Lee

et al. 2023

J. Electrochem. Soc.

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Silver oxide (Ag₂O) is soluble in the hydrophobic protic amide-type ionic liquid (IL), protonated-betaine bis((trifluoromethyl)sulfonyl)amide ([Hbet][TFSA]). Cyclic voltammetric behavior of Ag(I) showed a single redox couple, and NMR spectra implied that Ag⁺ might be coordinated with the [TFSA] anions in more extent than with the deprotonated [Hbet] ions (i.e. [bet]; a Zwitterion). By changing the scan rates and cycle numbers of potential scan utilized for the cyclic voltammetric electrodeposition, different particle sizes and distribution densities of silver nanoparticles (AgNPs) could be electrodeposited on glassy carbon disc electrode, which showed activities towards the electrochemical reduction of nitrate and oxidation of hydrazine, respectively, in alkaline solutions. The high faradic efficiencies of Ag electrodeposition using the contents of Ag₂O coin batteries as the Ag source implied that it may be possible to develop a process for recovering Ag from spent Ag₂O coin batteries based on the electrochemical system reported here.

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“…29,35 The influence of water on the electrochemical behavior of Zn(II) and on the morphology of deposited Zn from IL-water mixtures has also been reported. 26,[36][37][38][39][40] MacFarlane et al showed that the favorable electrochemistry of different ionic liquids with different amounts of water and Zn precursors can be due to the formation of different Zn complexes in the IL/water mixtures. 26 In the present study, various concentrations of water have been added to Zn(OAc) 2 /[EMIm]OAc mixtures to investigate the feasibility of Zn electrodeposition at lower concentrations of Zn(OAc) 2 (e.g.…”

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confidence: 99%

Electrodeposition of Zinc from 1-ethyl-3-methylimidazolium acetate-water Mixtures: Investigations on the Applicability of the Electrolyte for Zn-Air Batteries

Ghazvini¹,

Pulletikurthi²,

Cui³

et al. 2018

J. Electrochem. Soc.

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In this paper, the influence of various concentrations of water on the electrochemical and spectroscopic behavior of 1-ethyl-3methylimidazolium acetate ([EMIm]OAc) and of 1 M Zn(OAc) 2 /[EMIm]OAc has been investigated. The results show that the added water can reduce the viscosity and improve the conductivity of the employed electrolyte. Spectroscopy results reveal that both [EMIm]OAc and 1 M Zn(OAc) 2 /[EMIm]OAc interact with water and the extent of interaction varies with the amount of water. Furthermore, the electrochemical behavior of 1 M Zn(OAc) 2 /[EMIm]OAc is changed with the addition of different concentrations of water. A minimum of 20 vol% water was necessary to electrodeposit Zn from 1 M Zn(OAc) 2 /[EMIm]OAc at room temperature. Moreover, 1 M Zn(OAc) 2 /[EMIm]OAc with 20 vol% water was assessed for its possible application as an electrolyte in a Zn-air battery.

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Electrodeposition of metal cations from the wet ionic liquid [EMIM][TFSI]

Cited by 9 publications

References 31 publications

Ionometallurgical Step‐Electrodeposition of Zinc and Lead and its Application in a Cycling‐Stable High‐Voltage Zinc‐Graphite Battery

Ionometallurgical Step‐Electrodeposition of Zinc and Lead and its Application in a Cycling‐Stable High‐Voltage Zinc‐Graphite Battery

Demonstration of Feasibility Using Ionic Liquid as Electrolyte for Electrochemical Deposition and Recovery of Silver from Silver Oxide

Electrodeposition of Zinc from 1-ethyl-3-methylimidazolium acetate-water Mixtures: Investigations on the Applicability of the Electrolyte for Zn-Air Batteries

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