The characteristics of synthesized potassium hexatitanate and the manufacturing process of the matrix

被引：26

作者：

Lee, HK

Shim, JP

Shim, MJ

Kim, SW

Lee, JS

机构：

[1] HANYANG UNIV,DEPT IND CHEM,SEOUL 133791,SOUTH KOREA

[2] SEOUL CITY UNIV,DEPT LIFE SCI,SEOUL 130743,SOUTH KOREA

[3] SEOUL CITY UNIV,DEPT CHEM ENGN,SEOUL 130743,SOUTH KOREA

来源：

MATERIALS CHEMISTRY AND PHYSICS | 1996年 / 45卷 / 03期

关键词：

potassium hexatitanate; matrix; bubble pressure; alkaline fuel cells;

D O I：

10.1016/0254-0584(96)80114-3

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The characteristics of synthesized potassium hexatitanate (K2O . 6TiO(2)) and the manufacturing process of the matrix for an alkaline fuel cell were studied. Potassium hexatitanate was synthesized by sintering a mixture of K2CO3 and TiO2 at 850 degrees C, and the thin film type matrix was manufactured with polytetrafluoroethylene (PTFE) as the binder. The highest wettability, 50%, was obtained for the matrix manufactured using 12 h ball-milled powder containing 10 wt.% PTFE, and it also showed good mechanical properties. The matrix made using K2O . 6TiO(2) whiskers showed 165% wettability. The wettability, bubble pressure and porosity of the matrix made using a 1:2 powder:whisker mixture were 140%, 220 mmHg and 62%, respectively.

引用

页码：243 / 247

页数：5

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