Studies on charge transfer across the micro-liquid/liquid interface supported at a double-barrel micropipette


Autoria(s): Cheng Y; Su B; Shao YH
Data(s)

2003

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

http://ir.ciac.jl.cn/handle/322003/17385

http://www.irgrid.ac.cn/handle/1471x/152916

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