CHARACTERIZATION OF TIN OXIDE-FILMS GAS SENSOR BY INSITU CONVERSION ELECTRON MOSSBAUER SPECTROMETRY (CEMS)

被引：7

作者：

NOMURA, K ^{[1
]}

SHARMA, SS ^{[1
]}

UJIHIRA, Y ^{[1
]}

机构：

[1] UNIV TOKYO,ADV SCI & TECHNOL RES CTR,MEGURO KU,TOKYO 153,JAPAN

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 1993年 / 76卷 / 1-4期

关键词：

D O I：

10.1016/0168-583X(93)95237-Y

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Sn-119 conversion electron Mossbauer spectrometry was applied to analyse tin oxides films in order to clarify the sensitization mechanism to a hydrogen gas. The reduced Sn(II) species was detected in the presence of mixed oxides and doped Pd in tin oxides films. Spillover effect of hydrogen is discussed between these metal mixed tin oxide films. In situ CEMS at working temperatures of the gas sensor showed no reduced tin species, but Mossbauer parameters of Sn(IV) oxides changed in coincidence with the temperature, which specifies the gas sensing function.

引用

页码：357 / 359

页数：3

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