Ag+ transfer across the water/1,2-dichloroethane interface facilitated by complex formation with tetraphenylborate derivatives

TLDR: In this article, the assisted transfer of silver ion, Ag+, by complexation of Ag+ with the tetrakis(4-chlorophenyl)borate (TPBCl−) anion was studied at the interface between two immiscible electrolyte solutions (ITIES).

About: This article is published in Electrochimica Acta.The article was published on 2004-01-15 and is currently open access. It has received 25 citations till now. The article focuses on the topics: ITIES & Tetraphenylborate.

Figures

Fig. 4. Analysis of the half-have potential dependence on silver ion concentration when TPBCl− is kept in excess. Results obtained with cell II (x = 1.0 mM). Sweep rate= 50 mV s−1.

Fig. 5. Cyclic voltammogram registered in the experimental conditions of Fig. 4 for three different concentrations of silver ion 0.30 mM (—); 0.50 mM (- - -) and 0.63 mM (· · · ). Sweep rate= 50 mV s−1.

Fig. 6. Peak current dependence on silver ion concentration using the same experimental conditions ofF g. 4.

Fig. 7. Cyclic voltammogram registered in the absence (a) or in the presence (b) Ag(I) in the aqueous phase and BTPPATPFPB as the organic supporting electrolyte in DCE extending the available potential window towards more positive potentials. The experimental results were obtained using cell VI with x = 2.5 mM; y = 0 mM (a) or y = 2.5 mM (b) and sweep rate= 50 mV s−1.

Fig. 1. Cyclic voltammograms obtained with (a) cell I: sweep rate= 50 mV s−1 and (b) cell II withx = 10 mM andy = 0.31 mM; sweep rate= 10, 25, 50, 75 and 100 mV s−1.

Table 1 Schematic representation of the diffusion regimes at a micro-liquid–liquid interface for the transfer of the metal ion or this of the anion

Frequently asked questions

Q1. What are the contributions in "Ag+ transfer across the water/1,2-dichloroethane interface facilitated by complex formation with tetraphenylborate derivatives" ?

The assisted transfer of silver ion, Ag+, by complexation of Ag+ with the tetrakis ( 4-chlorophenyl ) borate ( TPBCl− ) anion was studied at the interface between two immiscible electrolyte solutions ( ITIES ). The value for the formal transfer potential of silver ( I ) from aqueous to 1,2-dichloroethane was evaluated and the association constant for the [ Ag ( TPBCl ) 2 ] − complex was determined.