Specific membrane transport of silver and copper as Ag(CN)32− and Cu(CN)43− ions through a supported liquid membrane using K+-crown ether as a carrier

Gherrou, Abdelaziz; Kerdjoudj, Halima

doi:10.1016/s0011-9164(02)00975-x

Cited by 30 publications

(25 citation statements)

References 19 publications

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“…The complexation of Cu in a cyanide system is known to have a high stability constant ͑␤͒ and high equilibrium constant ͑K͒, indicating preferential highorder complexation in the electrolyte 19,21,22 Cu…”

Section: Resultsmentioning

confidence: 99%

Acceleration Effect of CuCN in Ag Electroplating for Ultralarge-Scale Interconnects

Cho

Lee

Kim

et al. 2007

Electrochem. Solid-State Lett.

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The addition of CuCN accelerated the deposition rate in cyanide-based Ag electroplating. The catalytic effect came from the high-order complexation of Cu with the free CN − ions in electrolyte. It changed the equilibrium state of the electrolyte, presented as an increase in the amount of Ag͑CN͒ 2 − compared to Ag͑CN͒ 3 2− . Because Ag͑CN͒ 2 − could be reduced more easily, Ag electroplating was accelerated. Fourier transform infrared analysis showed the equilibrium change with the increase in Ag͑CN͒ 2 − peak according to the CuCN addition. For superfilling, it is necessary to localize the complexation on the Cu surface.

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Section: Resultsmentioning

confidence: 99%

Acceleration Effect of CuCN in Ag Electroplating for Ultralarge-Scale Interconnects

Cho

Lee

Kim

et al. 2007

Electrochem. Solid-State Lett.

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“…The predominant species involved in the charge transfer reaction depends on CN -concentration with the following equilibrium. 19,20 )…”

Section: Ecs Transactions 11 (6) 297-304 (2007)mentioning

confidence: 99%

“…The complexation of Cu in a cyanide system is well-known with the high stability constant (β) indicating the preferential high-order complexation in the electrolyte. 19,21,22 Sufficient Ag(CN) 2 -in the solution increased the current density at the constant electrode potential because a lower equilibrium potential of Ag(CN) 2 -resulted in a higher overpotential in the reduction for electroplating. Namely, the change in the equilibrium state of the electrolyte by adding CuCN produced the acceleration effect in Ag electroplating.…”

Section: Ecs Transactions 11 (6) 297-304 (2007)mentioning

confidence: 99%

Acceleration Effect of CuCN in Ag Electrodeposition for Metal Interconnection

et al. 2007

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The addition of CuCN accelerated the deposition rate in cyanide-based Ag electroplating. The catalytic effect came from the high-order complexation of Cu with the free CN- ions in electrolyte. It changed the equilibrium state of the electrolyte, presented as an increase in the amount of Ag(CN)2- compared to Ag(CN)32-. Because Ag(CN)2- could be reduced more easily, Ag electroplating was accelerated. FT-IR analysis showed the equilibrium change with the increase in Ag(CN)2- peak with CuCN addition. For superfilling, it is necessary to localize the complexation on Cu surface.

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“…In subsequent studies, the microporous polypropylene membranes (Celgard 2500, 2400) were used as a supporting medium to hold an organic solution containing the crown ether dissolved in a mixture of ethanol and chloroform (v/v) [7]. Besides, in some investigations, the cellulose triacetate membranes were doped with imidazoleazocrown derivatives, fixed as carriers and used for facilitated transport of Zn(II), Cd (II), and Pb(II) ions from aqueous nitrate source phase [8].…”

Section: Introductionmentioning

confidence: 99%

Diazabenzo crowns grafted on the polystyrene and application of extraction of metal cations

Dardouri

Amor

Meganem

2016

Desalination and Water Treatment

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A B S T R A C TThe study of the new structures mainly useful in the synthesis of more efficient and selective new extractants led to the development of new series of macromolecules. Hence, in our present experiment, the expanded polystyrene packaging waste was chemically modified. Then, the functionalization of polystyrene recovered by the direct blending and grafting of a benzenic crown ether group was carried out. The obtained resins were characterized by elemental analysis, infrared spectroscopy, differential scanning calorimetry, differential thermal analysis, thermogravimetric analysis, and X-ray diffraction. The ability to extract metallic cations (Cr 3+ , Fe 3+ , Ni 2+ , Cd 2+ , and Pb 2+ ) contained in an aqueous solution was done by the grafted or ungrafted polymers by crown ethers. Obtained results showed higher extraction percentages for resin 4, thus, suggesting it had important extracting capacity compared with resin 3.

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Specific membrane transport of silver and copper as Ag(CN)32− and Cu(CN)43− ions through a supported liquid membrane using K+-crown ether as a carrier

Cited by 30 publications

References 19 publications

Acceleration Effect of CuCN in Ag Electroplating for Ultralarge-Scale Interconnects

Acceleration Effect of CuCN in Ag Electroplating for Ultralarge-Scale Interconnects

Acceleration Effect of CuCN in Ag Electrodeposition for Metal Interconnection

Diazabenzo crowns grafted on the polystyrene and application of extraction of metal cations

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