HUMIDITY SENSOR WITH SINTERED BETA-CA(PO3)2 FOR HIGH-TEMPERATURE USE

被引：15

作者：

GREENBLATT, M

TSAI, PP

KODAMA, T

TANASE, S

机构：

[1] RUTGERS STATE UNIV,CTR ADV FOOD TECHNOL,PISCATAWAY,NJ 08854

[2] GOVT IND RES INST OSAKA,FUEL CELL SECT,IKEDA,OSAKA 563,JAPAN

来源：

SOLID STATE IONICS | 1990年 / 40-1卷

关键词：

D O I：

10.1016/0167-2738(90)90375-2

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：

A galvanic cell-type humidity sensor has been constructed from sintered β-Ca(PO3)2 which is a proton conductive solid. The EMF response as a function of the logarithm of water vapor is linear, reversible, reproducible, and very fast over a wide range of vapor pressure measured at 578, 678 and 776°C, respectively. The variation of observed EMF versus logarithm of water vapor is in good agreement with the theoretical EMF expected from the Nernst equation. Experimental results of steam-oxygen and steam-hydrogen concentration cells respectively employing β-Ca(PO3)2 as an electrolyte confirm proton conductivity and suggest the potential application of this material for high temperature galvanic cell-type humidity sensing. © 1990.

引用

页码：444 / 447

页数：4

共 10 条

[1] PROTONIC CONDUCTION IN ALKALINE-EARTH META-PHOSPHATE GLASSES CONTAINING WATER [J].