MECHANISM OF INDIUM ELECTRODEPOSITION ON BISMUTH CATHODES AND TIME EVOLUTION OF THE DEPOSITS

被引：14

作者：

CANEGALLO, S ^{[1
]}

DEMENEOPOULOS, V ^{[1
]}

BICELLI, LP ^{[1
]}

SERRAVALLE, G ^{[1
]}

机构：

[1] POLITECN MILAN,DIPARTIMENTO CHIM FIS APPLICATA,CNR,CTR STUDIO PROC ELETTRODICI,I-20133 MILAN,ITALY

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 1995年 / 228卷 / 01期

关键词：

ELECTRODEPOSITION; INDIUM; BISMUTH; INTERMETALLIC COMPOUNDS; DIFFUSION COEFFICIENTS;

D O I：

10.1016/0925-8388(95)01668-6

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The mechanism of the indium electrodeposition process from aqueous solutions on bismuth cathodes has been investigated as well as the evolution with time of the composition of the deposits after electrodeposition. The potentiometric results and the changes in composition and structure are explained by considering the transport phenomena and the reactions occurring in the solid state owing to indium diffusion into the electrode and to the formation, generally, of the multiphase layer In-In2Bi-In5Bi3-InBi. Such analysis allows estimation of the room temperature average diffusion coefficient of indium in the three intermetallic compounds (ca. 10(-15)-10(-16) m(2) s(-1)). Moreover, consideration of the indium chemical potentials within each compound makes it possible to account for the evolution of the system with time to InBi.

引用

页码：23 / 30

页数：8

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