Studies on charge transfer across the micro-liquid/liquid interface supported at a double-barrel micropipette
Data(s) |
2003
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Resumo |
In this paper, the charge transfer across the micro-liquid/liquid interface supported at the orifice of a double-barrel micropipette, namely, a theta-pipette, is reported. Simple ion transfer(TMA(+)), facilitated ion transfer (potassium ion transfer facilitated by DB18C6), and electron transfer (ferrocene and ferri/ferrocyanide system) have been investigated by cyclic voltammetry. The experimental results show that a very thin aqueous film, linking both barrels filled with the aqueous solution and the organic solution respectively, can spontaneously be formed on the outer glass surface of such a double-barrel micropipette to construct a micro-liquid/liquid interface, which provides the asymmetry of diffusion field. Such device is demonstrated experimentally which can be employed as one of the simplest electrochemical cells to investigate the charge transfer across the liquid/liquid interface. |
Identificador | |
Idioma(s) |
中文 |
Fonte |
Cheng Y;Su B;Shao YH.Studies on charge transfer across the micro-liquid/liquid interface supported at a double-barrel micropipette,CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE,2003,24(10):1834-1837 |
Palavras-Chave | #ION TRANSFER-REACTIONS #ELECTRON-TRANSFER #LIQUID INTERFACE #TIP #VOLTAMMETRY #ITIES |
Tipo |
期刊论文 |